hey Dan I just spoke to you lastnight wow how nice to have talked to and then to have found this on youtube. everyone out there. Dan with jeffdaniels is a real honest guy and love doing these jeeps you have you go to jeffdaneils jeep website and check out what he's done, 14 pasenger jeep for haiti. he helps these people with all kinds of stuff. super nice guy. Thanks Dan for all the good you do over there.
hows it run compared to an original 4 or 6 banger my buddies 4 banger feels GUTLESS hardly moves out of its own way.. Ive been looking into this swap it seems straight forward mounting the motor and tranny in and rewiring what else needs to be done during the swap?
@rockinbass01 i don't know what else would be involved in the swap but i can almost guarantee that it has a lot more guts then a stock 4 banger or v6, i'd love to do a cummins d-series 350 swap in something, that would be crazy!
How heavy is the Cummins compared to stock engines and does it affect front end weight adversely? Nice job! I just put a 3 cylinder Kubota diesel in a Geo Metro and can appreciate what you did. Kimmer6
Lol....not gonna happen. If they turn backwards, just mount your axles upside down or run rear-engine with the transmission coming out towards the front.
Yes, the Kubota motor does turn backwards. Again, you can turn your axles up side down or run a 1:1 reverse-motion portal box for greater axle clearance. Kubota tractors actually run a chain-drive down below the engine, the belt and fan are in the back, and the flywheel is in the front. It goes through a normal transmission out to a normal tractor axle.
@TJvigilante hey bud just wondering where to get portal axle box's from? do the sell them for dana axles or is it just a certain type of axle that have portals on them?
@quadzilla26b I've seen people graft hummer H1 portal boxes onto just about anything...and there used to be a company called portal-tek that made beefier versions of the same thing...but they lost their asses in another venture and went belly-up. I'm sure there are more offerings out there.
hey iv been thinking about building a jeep with a 3.9 cummins in it then i saw urs on here..what engine is in it?..did you build it yourself? if so could you help me out..i was wondering the ratio on the ring and pinion..and all the hard stuff..if you dont mind helping it would be much appericiated..thank you! =) whats your about mpg's
the simpler a machine is, the more reliable it will be. This includes emissions controls, a truckload of sensors eagerly waiting to illuminate the check engine light, and a buttload of wires and vacuum lines.
Quote: " They are much more complicated and harder to start cold than electronic ones. If you are going to work on new cars you cannot run from computers." - madyzome
It's entirely possible I have no idea what I'm talking about, but regarding complication, I think you'll generally find it is much easier for your average at home garage monkey to work on something that is almost entirely mechanical instead of electronic.
If you ever tried to tune a carburetor you would understand. A fuel injected car "learns" and programs itself. Its all about comfort. People tend to shy away from electronics and computers because its unfamiliar. If one takes the time learn about electronic engine management they will find its not as bad as others might say. If you really want to see a nice electronic diesel engine swap go to American Expedition Vehicle's website, they put a 5.9 Cummins in a 07 jeep Wrangler. It can be done!
Good point. Admittedly I've never tuned a carburetor, but I understand the basic ideas and principles, and I think carburetors are more accessible. Also I'm not sure about your statement that a fuel injected car programs itself. Fuel injection systems need to be tuned too you know. The difference is this, for one you need someone smart with a laptop who's electronically inclined, and for the other, you need someone who's at the very least mechanically inclined, with a few of the right tools.
See but thats the thing this car has lots of computers (in the engine bay, under the seat for airbags and in the gauges). So you see there are many electronic problems in a swap like this, they are unavoidable. (as I learned later from this swap they retained the stock computer and gauges but the Tach doesn't work unless you install a crankshaft position sensor on the engine and connect it to the ECU. WHAT A NIGHTMARE)
1)Mechanical diesels are not harder to start or more complicated than electronic injection. 2) Most of the vehicles you keep citing as having electronic dashboard nightmares have no such thing. 3)There are at least 2 easy tachometer work arounds (alternator driven, flywheel driven) that don't involve ecu patching at all.
I am sorry you have a problem understanding diesels swaps, but your info is bogus and confusing to others.
1)I said nothing about harder starting diesels, but they are way more mechanically complicated and its the mechanicals that break down easier not electrical. 2)The only vehicle I cited was this one above which is a 2000 TJ and it is complicated because all information regarding engine telemetry is digitized and multiplexed on a communications bus (explain to me what isn't complicated about that). 3)I never said anything about ECU patching.
I know very well what I am talking about, as for you...
You know jack shit about what you are talking about. You wave wonky words like telemetry and multiplexed around in a way that makes no sense. I build conversions for a living.
Wonky words? I didn't realize I have to dumb down these things for someone who does swaps for a living. I used telemetry and multiplexed very much in context. You have a difficulty understanding modern electronically controlled engines both diesel and gasoline.
"...harder to start cold than electronic ones" COLD! It is a proven fact that mechanical diesels are more difficult to start in the COLD than electronic injected ones.
Are you seriously telling me a mechanical Cummins has LESS moving parts then the new common rail electronic injection ones?
Not much difference, one way or another, in the moving parts in a rotary pump injection system and a CRD system, especially on a Cummins. Fewer
By wonky I mean unnecessarily obfuscating issues with techy sounding language that makes you sound knowledgeable.
Ease of starting is not always an issue of electronics one way or another.
The 4bt for instance has an enormous compression ratio, no need for glow plugs, and starts about as easily as my vw tdi with unit injectors. Easier actually.
I don't want to turn this into a "fuel injection vs carburetors" argument, this wont get us anywhere. I just personally believe that the new electronically injected diesels are more reliable however they are still too new and the jury is still out on that one.
I know what you meant by wonky, but this is literally the language used in Chrysler factory manuals not to mention patents issued by them.
I don't like comparing different diesels by different manufacturers, years and displacements.
Then stop making comments about electronic issues on non-electronic conversions and switching the issues around. Yes, electronic diesels are often more reliable and efficient—I drive a tdi and love it. But what you said was that it was a Proven Fact (a Proven Fact without citation is a Strong Opinion) that electronic injection per se cold starts better than mechanical. That is just not true. The 4bt starts great cold for reasons that have nothing to do with electronics whatsoever.
This entire time I have been talking about no other car than a 2000 Jeep wrangler. I know Jeeps very, very, very well. I also know their electronics like the back of my hand, so to say there are no electronic issues in swapping anything into this car is very presumptuous. Like I said before this thing has up to three computers in it and you cannot run away from them. As for the 4bt cold starting all I can say is I owned a 89 cummins ram and a 2004.5 cummins ram and of 2004.5 starts easier cold.
What the stock computer is retained? Do the gauges still work? The gauges in the TJ are digital and info travels on a data bus at around 7.5 Kbps. People that have done conversions on TJs usually require a compatible engine from chrysler (like a Hemi) that also uses the ccd bus, but that cummins engine is mechanically controlled not electronically and even if it was controlled electronically like the new cummins engines it wouldn't be compatible because cummins uses the CAN bus not the CCD bus.
agreed, MECHANICALLY. all you need is sensors and guages. maybe an "engine dying" light. either way the biggest problem is fitting an engine that big and heavy in it. also, this is the older cherokee that had the 401 big block.more room.the newer jeep can only fit a 4bt without extensive modifications.
Well it true all you need is sensors but my point was that the TJ dashboard is not accommodating to aftermarket gauges and so what choice do you really have if you want a eye pleasing engine swap and not something that looks like it was hacked together by a blind monkey? I cannot understand peoples obsession with mechanically injected diesels. They are much more complicated and harder to start cold than electronic ones. If you are going to work on new cars you cannot run from computers.
i have a 53 willys pickup truck and i was seriously looking at puttung the 4bt in it. until i figured that i would spend way more upgrading the drive train
wow, thats awesome. i can only dream of doing the conversion on my 97 sport. maybe someday chrysler will get off its dying ass and bring the wrangler CRD to the states. memo to chrysler, "if u build it, they will come"
I believe it is a cummins 4bt. 4cyl 3.9L Turbo Diesel. It is very similar to the Big 6 cylinder dodge 5.9 cummins. It just has 2 less cylinders. Super Sweet motor. Very nice conversion.
hey Dan I just spoke to you lastnight wow how nice to have talked to and then to have found this on youtube. everyone out there. Dan with jeffdaniels is a real honest guy and love doing these jeeps you have you go to jeffdaneils jeep website and check out what he's done, 14 pasenger jeep for haiti. he helps these people with all kinds of stuff. super nice guy. Thanks Dan for all the good you do over there.
Joe webster
gospeedracer40 4 months ago
I don't know why engines in america have to idle so hi!
enanotodo 6 months ago
I am putting a 300d in my 1978 CJ7
Any idea where I can get the parts?
24preacherboy 8 months ago
that is awesome man!
canadacatalyst 9 months ago
hows it run compared to an original 4 or 6 banger my buddies 4 banger feels GUTLESS hardly moves out of its own way.. Ive been looking into this swap it seems straight forward mounting the motor and tranny in and rewiring what else needs to be done during the swap?
rockinbass01 1 year ago
@rockinbass01 i don't know what else would be involved in the swap but i can almost guarantee that it has a lot more guts then a stock 4 banger or v6, i'd love to do a cummins d-series 350 swap in something, that would be crazy!
crowndrinker890 10 months ago
you can set the rpm down to 600 to get more life out of the engine and burn less fuel and make it more quiet
enanotodo 1 year ago
Amazing you don't mention the mileage...
Reverendjim1 1 year ago
what kind of mpg do you get with this engine? would love to do this if it increased my range by a good amount.
domeslacker 1 year ago
@domeslacker
I get 22-23 mpg @ 80 mph, turning at 2800 rpm,
as the swap goes, it's fairly easy..
rasagandan 9 months ago
A new transmission and an engine uprate should get that thing to about 160 horsepower.
douro20 1 year ago
Sweet! What kind of diesel is under the hood? A Cummins, a Mercedes? What? How about a drive? Every SUV should be offered with a diesel engine.
Seattlecarnut 1 year ago
Awesome work....Where did you got this engine...
Darealwhip 2 years ago
where did you find the radiator? Did you have to have it fab'd that way with the output on the passenger side? I am having a hard time finding mine
bateman32 2 years ago
I want to put a 4BT in my 4D JK. Might just try to fit a 12v though lol
SJ77F100 2 years ago
There is still room for an intercooler.
1pinchipendejo 2 years ago
In UK the jeep diesels often have the VE 2.5td engine.
tpvalley 3 years ago
How heavy is the Cummins compared to stock engines and does it affect front end weight adversely? Nice job! I just put a 3 cylinder Kubota diesel in a Geo Metro and can appreciate what you did. Kimmer6
kimmer6 3 years ago 2
dont kubota's turn backwards? ive heard few friends talk about running off the front
of the crankshaft turning the engine around, sounds like alot of work though.....
digzie1 3 years ago
Lol....not gonna happen. If they turn backwards, just mount your axles upside down or run rear-engine with the transmission coming out towards the front.
TJvigilante 2 years ago
guess that would give way for an easy high pinion set up,lol
the cummins turns over like most gas
but i think the "kabota" tractor engine
turns over backwards,according to a
kabota dealer,who told me he wanted to
do a ford pickup swap, but when there
is a will there is a way........
digzie1 2 years ago
chill on the enter key buddy.
Yes, the Kubota motor does turn backwards. Again, you can turn your axles up side down or run a 1:1 reverse-motion portal box for greater axle clearance. Kubota tractors actually run a chain-drive down below the engine, the belt and fan are in the back, and the flywheel is in the front. It goes through a normal transmission out to a normal tractor axle.
TJvigilante 2 years ago
@TJvigilante hey bud just wondering where to get portal axle box's from? do the sell them for dana axles or is it just a certain type of axle that have portals on them?
quadzilla26b 1 year ago
@quadzilla26b I've seen people graft hummer H1 portal boxes onto just about anything...and there used to be a company called portal-tek that made beefier versions of the same thing...but they lost their asses in another venture and went belly-up. I'm sure there are more offerings out there.
TJvigilante 1 year ago
@TJvigilante thanks for your information! i really appreciate it! thanks again!!!
quadzilla26b 1 year ago
@kimmer6 the 4bt weighs about 570 pounds dry.not sure about the straight 6 from the Jeeps though.
jimistephen 2 years ago
hey iv been thinking about building a jeep with a 3.9 cummins in it then i saw urs on here..what engine is in it?..did you build it yourself? if so could you help me out..i was wondering the ratio on the ring and pinion..and all the hard stuff..if you dont mind helping it would be much appericiated..thank you! =) whats your about mpg's
casey91507 3 years ago
Those jeeps have 4bt's in them.
I'm a little floored by the price they're charging for the conversion but they are doing a fantastic job on them. Very tight integration.
rollotomnasi 3 years ago
As in the actor Jeff Daniels?
pwarren1010 3 years ago
Whoa! Is that a 4bt under the hood?? How'd they make it fit? I always thought those Cummins were much too tall to work in a Jeep engine compartment?
AKJeeper 3 years ago
the simpler a machine is, the more reliable it will be. This includes emissions controls, a truckload of sensors eagerly waiting to illuminate the check engine light, and a buttload of wires and vacuum lines.
ChevelleSSLS6 3 years ago
heard they're charging $17k for this mod. Anyone?
rollotomnasi 3 years ago
i read somewhere that its about $10k, but i havent done any research on it so dont count me as a reliable source lol
Phil38654 2 years ago
Quote: " They are much more complicated and harder to start cold than electronic ones. If you are going to work on new cars you cannot run from computers." - madyzome
It's entirely possible I have no idea what I'm talking about, but regarding complication, I think you'll generally find it is much easier for your average at home garage monkey to work on something that is almost entirely mechanical instead of electronic.
gar3thw 3 years ago
If you ever tried to tune a carburetor you would understand. A fuel injected car "learns" and programs itself. Its all about comfort. People tend to shy away from electronics and computers because its unfamiliar. If one takes the time learn about electronic engine management they will find its not as bad as others might say. If you really want to see a nice electronic diesel engine swap go to American Expedition Vehicle's website, they put a 5.9 Cummins in a 07 jeep Wrangler. It can be done!
xVikXtorx 3 years ago
Good point. Admittedly I've never tuned a carburetor, but I understand the basic ideas and principles, and I think carburetors are more accessible. Also I'm not sure about your statement that a fuel injected car programs itself. Fuel injection systems need to be tuned too you know. The difference is this, for one you need someone smart with a laptop who's electronically inclined, and for the other, you need someone who's at the very least mechanically inclined, with a few of the right tools.
gar3thw 3 years ago
The problem with electronics is small wires and low voltages, they will not last, so the pollution they save, is gained by having to build new ones.
In 3rd world countries they r useless after not to long.
Nope, I prefer my slower mechanical stuff.
Nothiong but trouble electronictrickery witch craft I think! lol.
tpvalley 3 years ago
You are looking for electronic problems that just don't exist on non-electronic engine swaps.
joshgb 3 years ago
See but thats the thing this car has lots of computers (in the engine bay, under the seat for airbags and in the gauges). So you see there are many electronic problems in a swap like this, they are unavoidable. (as I learned later from this swap they retained the stock computer and gauges but the Tach doesn't work unless you install a crankshaft position sensor on the engine and connect it to the ECU. WHAT A NIGHTMARE)
madzyzome 3 years ago
1)Mechanical diesels are not harder to start or more complicated than electronic injection. 2) Most of the vehicles you keep citing as having electronic dashboard nightmares have no such thing. 3)There are at least 2 easy tachometer work arounds (alternator driven, flywheel driven) that don't involve ecu patching at all.
I am sorry you have a problem understanding diesels swaps, but your info is bogus and confusing to others.
joshgb 3 years ago
1)I said nothing about harder starting diesels, but they are way more mechanically complicated and its the mechanicals that break down easier not electrical. 2)The only vehicle I cited was this one above which is a 2000 TJ and it is complicated because all information regarding engine telemetry is digitized and multiplexed on a communications bus (explain to me what isn't complicated about that). 3)I never said anything about ECU patching.
I know very well what I am talking about, as for you...
madzyzome 3 years ago
Quote: "They are much more complicated and harder to start cold than electronic ones. "
Wrong and wronger. A Cummins mechanical diesel is nowhere near as complicated as any comparable electronic diesel. Not even close.
joshgb 3 years ago
You know jack shit about what you are talking about. You wave wonky words like telemetry and multiplexed around in a way that makes no sense. I build conversions for a living.
joshgb 3 years ago
Wonky words? I didn't realize I have to dumb down these things for someone who does swaps for a living. I used telemetry and multiplexed very much in context. You have a difficulty understanding modern electronically controlled engines both diesel and gasoline.
madzyzome 3 years ago
"...harder to start cold than electronic ones" COLD! It is a proven fact that mechanical diesels are more difficult to start in the COLD than electronic injected ones.
Are you seriously telling me a mechanical Cummins has LESS moving parts then the new common rail electronic injection ones?
madzyzome 3 years ago
Not much difference, one way or another, in the moving parts in a rotary pump injection system and a CRD system, especially on a Cummins. Fewer
By wonky I mean unnecessarily obfuscating issues with techy sounding language that makes you sound knowledgeable.
Ease of starting is not always an issue of electronics one way or another.
The 4bt for instance has an enormous compression ratio, no need for glow plugs, and starts about as easily as my vw tdi with unit injectors. Easier actually.
joshgb 3 years ago
I don't want to turn this into a "fuel injection vs carburetors" argument, this wont get us anywhere. I just personally believe that the new electronically injected diesels are more reliable however they are still too new and the jury is still out on that one.
I know what you meant by wonky, but this is literally the language used in Chrysler factory manuals not to mention patents issued by them.
I don't like comparing different diesels by different manufacturers, years and displacements.
madzyzome 3 years ago
Then stop making comments about electronic issues on non-electronic conversions and switching the issues around. Yes, electronic diesels are often more reliable and efficient—I drive a tdi and love it. But what you said was that it was a Proven Fact (a Proven Fact without citation is a Strong Opinion) that electronic injection per se cold starts better than mechanical. That is just not true. The 4bt starts great cold for reasons that have nothing to do with electronics whatsoever.
joshgb 3 years ago
This entire time I have been talking about no other car than a 2000 Jeep wrangler. I know Jeeps very, very, very well. I also know their electronics like the back of my hand, so to say there are no electronic issues in swapping anything into this car is very presumptuous. Like I said before this thing has up to three computers in it and you cannot run away from them. As for the 4bt cold starting all I can say is I owned a 89 cummins ram and a 2004.5 cummins ram and of 2004.5 starts easier cold.
madzyzome 3 years ago
What the stock computer is retained? Do the gauges still work? The gauges in the TJ are digital and info travels on a data bus at around 7.5 Kbps. People that have done conversions on TJs usually require a compatible engine from chrysler (like a Hemi) that also uses the ccd bus, but that cummins engine is mechanically controlled not electronically and even if it was controlled electronically like the new cummins engines it wouldn't be compatible because cummins uses the CAN bus not the CCD bus.
madzyzome 3 years ago
agreed, MECHANICALLY. all you need is sensors and guages. maybe an "engine dying" light. either way the biggest problem is fitting an engine that big and heavy in it. also, this is the older cherokee that had the 401 big block.more room.the newer jeep can only fit a 4bt without extensive modifications.
koglowa 3 years ago
Well it true all you need is sensors but my point was that the TJ dashboard is not accommodating to aftermarket gauges and so what choice do you really have if you want a eye pleasing engine swap and not something that looks like it was hacked together by a blind monkey? I cannot understand peoples obsession with mechanically injected diesels. They are much more complicated and harder to start cold than electronic ones. If you are going to work on new cars you cannot run from computers.
madzyzome 3 years ago
What kind of gas milage do you get?
keltrce 4 years ago
i have a 53 willys pickup truck and i was seriously looking at puttung the 4bt in it. until i figured that i would spend way more upgrading the drive train
FROSTY2588 4 years ago
What about a VW turbo diesel? I'm not sure, but I think they came as large as 1.9 liters.
giberish9 3 years ago
wow, thats awesome. i can only dream of doing the conversion on my 97 sport. maybe someday chrysler will get off its dying ass and bring the wrangler CRD to the states. memo to chrysler, "if u build it, they will come"
mitchkramah 4 years ago 11
That thing is Awesome.
lawnmowerdude 4 years ago
I believe it is a cummins 4bt. 4cyl 3.9L Turbo Diesel. It is very similar to the Big 6 cylinder dodge 5.9 cummins. It just has 2 less cylinders. Super Sweet motor. Very nice conversion.
doija 4 years ago 3
Your correct, it is a 4bt. Powerful little diesel!
1974fj 4 years ago 8
Few! I thought it was a VM diesel as fitted to cherokee for a horrible moment!!
tpvalley 4 years ago
what type diesel engine
redokboy 4 years ago
That would be a fun little jeep to have.
Justy330 4 years ago