Competition clutch bad clutch kits (cheap quality)
Nov 19, 2018, 03:00 PM
#32
[QUOTE=GSX_TO_EVO;11849416]
How does this make any relevance to why your flywheel bolts keep backing out?[/QUOT
Theres a difference in the transmission and he says that he’s a mechanic that he work on a lot of evos with com clutch “SINGLE plate discs”
How does this make any relevance to why your flywheel bolts keep backing out?
Theres a difference in the transmission and he says that he’s a mechanic that he work on a lot of evos with com clutch “SINGLE plate discs”
Nov 19, 2018, 03:15 PM
#34
I thought this thread got closed.
The bolt holes shouldn't be misshapen at all as long as the flywheel bolts stay tight. Once they loosen up, it gives any flywheel, no matter how light, enough room to widen the bolt holes. The flywheel bolts really only help transfer the load from the big end face of the crank to the inner face of the flywheel. When the bolts get loose, the face to face contact friction disappears and then all the load is transferred to the flywheel bolts themselves. After that you have nothing but the shear (side loading) strength of the bolt to help you out. Thus, the flywheel bolts will begin to eat at the metal around the flywheel bolt holes.
The bolt holes shouldn't be misshapen at all as long as the flywheel bolts stay tight. Once they loosen up, it gives any flywheel, no matter how light, enough room to widen the bolt holes. The flywheel bolts really only help transfer the load from the big end face of the crank to the inner face of the flywheel. When the bolts get loose, the face to face contact friction disappears and then all the load is transferred to the flywheel bolts themselves. After that you have nothing but the shear (side loading) strength of the bolt to help you out. Thus, the flywheel bolts will begin to eat at the metal around the flywheel bolt holes.
Nov 19, 2018, 03:25 PM
#35
I thought this thread got closed.
The bolt holes shouldn't be misshapen at all as long as the flywheel bolts stay tight. Once they loosen up, it gives any flywheel, no matter how light, enough room to widen the bolt holes. The flywheel bolts really only help transfer the load from the big end face of the crank to the inner face of the flywheel. When the bolts get loose, the face to face contact friction disappears and then all the load is transferred to the flywheel bolts themselves. After that you have nothing but the shear (side loading) strength of the bolt to help you out. Thus, the flywheel bolts will begin to eat at the metal around the flywheel bolt holes.
The bolt holes shouldn't be misshapen at all as long as the flywheel bolts stay tight. Once they loosen up, it gives any flywheel, no matter how light, enough room to widen the bolt holes. The flywheel bolts really only help transfer the load from the big end face of the crank to the inner face of the flywheel. When the bolts get loose, the face to face contact friction disappears and then all the load is transferred to the flywheel bolts themselves. After that you have nothing but the shear (side loading) strength of the bolt to help you out. Thus, the flywheel bolts will begin to eat at the metal around the flywheel bolt holes.
The fly wheel is very heavy it’s 3 1/2 times heavier than the Oem one and there is one matter that I forgot about where the flywheel faces the crank there is like a slight depth where it should sit having it compared with the oem flywheel it’s half less deeper than the Oem .
Nov 19, 2018, 04:02 PM
#36
EvoM Guru
iTrader: (1)
It's a 7 bolt 4g63, nothing special about it.
The lip that fits over the crank flange only needs to be enough to keep the flywheel centered while you torque the bolts. Once the bolts are tight, just like the wheel and wheel bearing hub, the friction of the mating surface is what holds it together.
The comp flywheel is heavy rotational inertia, it helps make the car easier to launch. I've installed a few of the twins also. The damage you are seeing is loose flywheel bolts. Plain and simple. Why its happening? You should consult a new shop because the one doing the work clearly isn't doing something right.
The lip that fits over the crank flange only needs to be enough to keep the flywheel centered while you torque the bolts. Once the bolts are tight, just like the wheel and wheel bearing hub, the friction of the mating surface is what holds it together.
The comp flywheel is heavy rotational inertia, it helps make the car easier to launch. I've installed a few of the twins also. The damage you are seeing is loose flywheel bolts. Plain and simple. Why its happening? You should consult a new shop because the one doing the work clearly isn't doing something right.