Yes, those blow proof bell housings are just stamped out and are not very square at all. Then you still need to check dowel pin alignment as well, to keep the input shaft alignment center of the crankshaft. Tilton makes a great tool for that.
This frightens me, should I do this with the bell houseing I'm getting? It's a Lakewood and they do have a good rep but this looks like any stamping could use this.
Thats really cool...Gotta love multiple use machines...Question..you said the guy wipped out the crank...what did he do exactly? If you don't mind me asking.
Having the input at an angle, it pushed the crank to one side and caused the mains to wear out rapidly - like within a few hours. Another problem with after- market bell housings is alignment w/crankshaft, they have to be less than .005" in concentricity. Special dowels are used to correct this condition. Out of parallel surfaces require grinding of the housing.
Great Video.
Q:
1. This grinding process reduces the overall length of the housing. Do you compensate?
Froggylyn 9 months ago
@Froggylyn - I don't in most cases because I'm only removing about .010"-.015";
fiatnutz 9 months ago
Yes, those blow proof bell housings are just stamped out and are not very square at all. Then you still need to check dowel pin alignment as well, to keep the input shaft alignment center of the crankshaft. Tilton makes a great tool for that.
Raging64 10 months ago
This frightens me, should I do this with the bell houseing I'm getting? It's a Lakewood and they do have a good rep but this looks like any stamping could use this.
jacktheripped 1 year ago
never even thought that was possible , this is why i suscribed long ago
now i know not to use shady bellhousings
AxSxKxONE 1 year ago
Wait are you saying that a bent up bellhousing led to the trashing of a crank?
halohadel 1 year ago
@halohadel - YES.
fiatnutz 1 year ago
@fiatnutz
How?
luvyouinmouth 1 year ago
you guys do nice work how much to resurface a nissan 350z flywheel?
julius350z 2 years ago
Another great video John. I also have your book and watch all your videos. You have even got me a little interested in Fiat cars.
Could you do some videos on balancing both rotating ang reciprocating parts please? That's something I still don't understand how it's done.
gdheck 2 years ago
John, I bought your book about ten years ago (Sunnen block/head guide) Today, I am still watching and learing from the master. Thanks!
scotts439 2 years ago
Thanks for the kind comments, I'm glad that I am still able to pass along a lot of what I have learned to others. JE...
fiatnutz 2 years ago
Thats really cool...Gotta love multiple use machines...Question..you said the guy wipped out the crank...what did he do exactly? If you don't mind me asking.
Chevypower265 2 years ago
Having the input at an angle, it pushed the crank to one side and caused the mains to wear out rapidly - like within a few hours. Another problem with after- market bell housings is alignment w/crankshaft, they have to be less than .005" in concentricity. Special dowels are used to correct this condition. Out of parallel surfaces require grinding of the housing.
fiatnutz 2 years ago
wow John that new one that I never seen done before. Thanks I learned something that what other things you can do with that machine!
pantherxx010 2 years ago
I'd like to meet this man.
chicagobuilt 2 years ago 2
I'd like to be his apprentice!
MrGuvEuroman 2 years ago
Thats an odd one... never heard of that being done.
HISandman 2 years ago
yeah that is a pretty rare sight resurfacing a bellhousing guess its cheaper to resurfac then getting a new one
citydriver 2 years ago
Great work John.
risc19 2 years ago
neat!
MCRmechanic 2 years ago