Rotary Breakdown/Rebuild

[Arabhacks]

The 2 primary problems with the rotary are the increased use of fuel and the wiper wear issue, in that order, due to the very nature of the rotary engine, pressure on the wipers increase with RPMs, As was pointed out, proper care and a Wankel engine is as good as any other.

[DrNorty]

@ventureelect If we take out "Turbos and Performance" and talk piston vs Rotary then yes a piston i would say is more forgiving in regards to servicing than say a Rotary, however i argue that any car should be well maintained anyway. I like the engine, its a simple design and only 3 moving parts compared to all the moving parts the piston engine has. I dont think todays Rotaries are "THAT much harder" on gas, it was over 40 years ago now that last oil crisis occured.

[DrNorty]

I just got me a v6 Station Wagon and my FD RX7 which is stock BTW would not use much more gas than that.. I know that an RX8 uses about 10ltr per 100kms. We need to remember all RX's are sports cars and they needed to be compared to other sports cars not a Toyota Corolla L or anything like that.

[steelcityracer1320]

An hey Im not a all out Honda fan but they also make alot of power for there size and run good for a long time, not tryin to start shit just seen some of youns post about Hondas being "1/2 assed cars" and things like that. There somewhat compareable 2 a Mazdas Rotary in my opinion not in how they work but how they make good N/A power out of a small engine. Mazdas Rotary and Hondas VTEC engines are the only good N/A JDM engines I can think of off the top of my head and they both deserve respect

[steelcityracer1320]

Does any1 know ware I could learn more about Rotary engines, like normal maintenance and up keep for a long running Rotary? Maybe a fourm someware?. I love regular piston engines but I've always been amazed by the Rotarys, there pretty cool desighns and they make A LOT of power esp for there size and seem relitivly simple

[supercharger92]

Who consumed more fuel? rotary engine or pistons.

[KKM13200]

My Rx7 just now needs a rebuild (only a water jacket but im gonna replace the whole thing) and its 27 years old, so obviously aji8 doesn't know what he is doing

[andreetje66]

is this one or two stroke ??....

[coolkid134134]

4 strokes

[NASTYTHEBOY]

@andreetje66 looks like 3 stoke, the rotor is at intake, then compresion/power, the exhast, but then the other two sides are doing the other strokes too, O.o i have pondered this question long and hard

[DrNorty]

The reason why 99% of cars are pistons was due to the oil crisis of the 70's Mass produced rotaries would of been the cheaper option over a piston engine and less moving parts but because they do tend to use more fuel that crisis pretty much killed the rotary engine. Was nothing to do with it blowing. I see RB26DETT and 4g63 Evo blow up just as much DUE TO INCORRECT Tuning or crap parts or just trying to push the limits.

[NASTYTHEBOY]

@DrNorty i agree, its all about how you treat it and maintain it =]

[juanmincia]

@DrNorty well said

[ventureelect]

@DrNorty What do you think of the rotary. Is it that much harder on gas.

[DrNorty]

@ventureelect Sorry on last thing was my comment was in regards to something that happened 40 years ago, most of us know that a modern engine normally has better fuel/power than those engines from 40 years ago.

[MuhammadDerkaDerka]

@DrNorty piston ring vs apex seal ... apex seals wear at about a 10:1 rate compared to piston rings given the engine is well maintained and not thrashed upon... ive owned 3 2nd gen rx7 and i must say they are a nightmare . unreliable , torque-less , gas guzzler ... i could go on for days . ive seen my friend need new apex seals twice to three times a year on his stock 86 non turbo ... sad for him

[kevin122780]

Well i have had 4 rx7 and the last one was a 88 turbo2 with 162k with T4 turbo,3in downpipe,hks blowoff running 14psi on the stock motor..13b is a great motor but is not a bootleg b16 or sr20det...you cant just throw autozone parts on it and think its going to last...and too many ppl do that and then say 13b is shit motor....if you want to halfass a car get a honda!!!!

[thejakelhawk]

hahahahahaha!! true true!!

[dirty1douglas]

whoa man i drive a honda with 352,000 on her she runns like a beast, but 100% correct built well last long time and god you have to love rotarys

[bigtank2185]

well, i don't want a car that runs like a beast, i want a car that runs like a car...

[oOillillOo]

i agree if u wanna be a cheap ass by a honda if u want true race and engine response buy an rx7

[flodeezul]

damn i love that comment.

[aji8]

This is a much needed video since the rotary needs to be rebuilt often.

[utubenz]

My rotary engine is 40 years old and never been rebuilt. It still goes very well.

And that animation does NOT truly depict the assembly sequence.

[aji8]

You must never run it then. Is it in a car? That would be a very old model.

[utubenz]

I drive it every Sunday, yes its never been out of my car. Its a 1969 Mazda Coupe.

[aji8]

Drive it for what? 2 miles. You will need a rebuild soon.

[203132]

depends on how u drive man....

if u thrash it of course a rebuilt is in order...

[aji8]

I beat the hell out of my piston engines and they don't need to be rebuilt. Like I said, the rotary is junk.

[203132]

no doubt the rotary has a short lifespan, doesn't mean it's junk.

i find rotary engines to be much more smoother

[aji8]

That is one thing I will agree with. My  13B was a very smooth engine.

[utubenz]

It gets driven aprox 25km per week. Also my 10 year old rotary engine lasted a further  8 years of full time drag racing before I rebuilt it. The rotary csan be more reliable than a piston engine if it is looked after. The rotary is NOT JUNK!!!!

[aji8]

Uh yes it is. That is why they use piston engines in 99.9% of the cars.

Sorry to burst your bubble of ignorance.

[utubenz]

Obviously you don't know much about rotary engine's aji8!

The rotary engine if maintained properly is as reliable as any piston engine.

The reason why the piston engine is preferred is because it emits less carbon into the atmosphere and is also more fuel efficient than a rotary engine.

[utubenz]

Not to mention Patent issues also.

[d1nzspectator]

no the true reason is 50% of people that buy cars dont know how to properly maintain a vehicle like regularly checking fluids and lubricants.. the other reason is not everybody wants or needs a sports compact.. lastly no compression isnt the end of the world.. put new seals in no different to doing a set of rings in a piston motor..

[LonewolfSaichi]

Obviously aji8 is one of those people that don't maintain their car. I bet his 4cylinder is on the verge of blowing. Some people just don't understand that Rotaries, when well maintained, are as good, if not better then piston engines. "If it's something your not used to, you end up hating it before you get to try and get used to it" I think that's whats going on in their minds.

[flodeezul]

i think peeps just dont understand rotaries

[jonatassp]

@aji8

dude, wtf is wrong with you?

my opinion: a rotary probably whooped your ass on a race

get a life...

[wasp010]

Thats like saying every piston engine will need a rebuild every X amount of miles. Some engines last a very long time, others don't. Depends how well you maintain them and how you drive them. Do you have any solid evidence that a rotary engine needs to be rebuilt "often"? And I'm not talking about your friends FD that he brings to the track every weekend. Show me a built-in design flaw that defies good maintenance and requires a set chronological pattern of rebuilds. Please and thank you.

[aji8]

Tell that to the guy that I sold my 13B to. The car I bought which has about 130k on it was on its second rotary and his had a little over 100K and would not run as the engine didn't have any compression any more. The design flaw is the rotary period. It really is not good for anything.

[skidtoy]

what engines have you designed and built...??? im keen to know as it sounds like you know everything....

[oOillillOo]

but what have u done that say u know anything about an engine let alone a spark plug

[wasp010]

There are RX8's with over 150,000 miles on them still on an original engine. A professor of mine had an RX7 for 20 years before she sold it, only having to replace minor parts; she never had to crack open the block. The only ignorant comment on this page that I see is yours. If you don't like rotary engines, fine. But don't leave comments on several videos saying rotary engines are junk trying to instigate an argument. Its not very mature.

[mageac]

the apex seals are harder then the housing, and wear the shit out of it....

ive seen a rotary with 200 k on it...

but ive seen piston engines with over a million on them....

[MoronAntidote]

@wasp010

150k miles is not impressive these days.

[wasp010]

@MoronAntidote For a sports car it is actually

[TommeyLeeReed]

My patented rotary piston engine has less the tem moving parts and very powerful too.

[airportlakesestates]

That is not the same as a god damn wankel, You are not creating the power source. You would need a compressor. Which would need a power source. Your "Engine" is just a mere air powered motor.

[TommeyLeeReed]

Mr. Air power,

My patented rotary piston engine is a real engine with a combution chamber and compressor #1,860,251

Your talking about my air version, that runs on air.

[Morpherex]

Really? You actually have a working version currently?

[SilverWolfM200LDH]

I love and appreciate this digital step by step methodical assembly of the Wankel rotary engine. You can see every part that goes into the successful operation of the engine, and the relationship between all the parts and how they all work together.

[15g3k]

nice video. 5 stars

[ocal958]

thanks a lot for wunderbahre erzahlung

[ottocars]

thank you great vid

[Maoriboy6969]

thats a renesis rotary, because the exhaust ports are in the end and intermediate plates

[Lypur]

great video man!

[wombatj]

awsome...