help with problem main thrust gone on ls2 stroker 402
Premium Supporting Vendor
Joined: Oct 2004
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From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
Doug, I have a question for you with the coupler since you have lots of driveline experience. The rear TT bushing housing can only go so far forward when seated in the TT housing. So is the forward movement transfered from the converter driveplate through the rear bearings and forward? I'm just trying to get a handle on this.
I'm passing on my RPM coupler to Scott because it is out of my car due to the jingling noise I experienced with it at idle and low RPMs and I'm getting nevious about not having one in the car....
I'm passing on my RPM coupler to Scott because it is out of my car due to the jingling noise I experienced with it at idle and low RPMs and I'm getting nevious about not having one in the car....
It has baffled me honestly, but we have confirmed that the slip coupler has fixed every car we have seen this happen too with no other modifications to the car, which has been a handful of them at this point. Plus what we see and hear about from other local racers too.
Need a job?
Thread Starter
Le Mans Master
Joined: Jan 2009
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From: East Texas
I discussed this earlier in this thread I think. On paper, and by all reasonable accounts of logical physics, the driveshaft cannot move forward in the tq tube causing this issue. However.. every time I have seen a thrust bearing issue, it has always been pushed forward, and when the bolt that locks the shaft in the stock coupler is released, there is a loud "tong" noise as the shafts pressure is released.
It has baffled me honestly, but we have confirmed that the slip coupler has fixed every car we have seen this happen too with no other modifications to the car, which has been a handful of them at this point. Plus what we see and hear about from other local racers too.
You confirmed it was hitting? That would certainly cause the problem. There is normally a lot of extra room in there, are you sure?
Need a job?
It has baffled me honestly, but we have confirmed that the slip coupler has fixed every car we have seen this happen too with no other modifications to the car, which has been a handful of them at this point. Plus what we see and hear about from other local racers too.
You confirmed it was hitting? That would certainly cause the problem. There is normally a lot of extra room in there, are you sure?
Need a job?
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From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
thank you Doug! Im going back together sat with mikes old auto coupler i feel safer even if it rattles their not cheap but less than a crankshaft! my car had a pilot bearing installed in the crank shaft for a 6 speed standard have no idea where it came from or who put it there its a eagle 402 crank im taking it out and i hope its not needed again thanks bro!
Oh and Eagle crank?
good luck with it.
Safety Car
Joined: Jun 2004
Posts: 4,353
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From: Bella Vista Ca
I can't even keep my car together let alone accomplish anything on the honey do list..... A job too
I think I've had everything else break on my car, to include a thrust bearing burning up from a bad crank. I guess I'm a little gun shy and things keep me up at night. My Mod Fever has mutated into something much worse
I think I've had everything else break on my car, to include a thrust bearing burning up from a bad crank. I guess I'm a little gun shy and things keep me up at night. My Mod Fever has mutated into something much worse
Thread Starter
Le Mans Master
Joined: Jan 2009
Posts: 7,767
Likes: 19
From: East Texas
I can't even keep my car together let alone accomplish anything on the honey do list..... A job too
I think I've had everything else break on my car, to include a thrust bearing burning up from a bad crank. I guess I'm a little gun shy and things keep me up at night. My Mod Fever has mutated into something much worse
I think I've had everything else break on my car, to include a thrust bearing burning up from a bad crank. I guess I'm a little gun shy and things keep me up at night. My Mod Fever has mutated into something much worse
Thread Starter
Le Mans Master
Joined: Jan 2009
Posts: 7,767
Likes: 19
From: East Texas
Yea I know my egale crank is a p.o.**** but for now its all I can afford It was installed by another shop! in Dallas they said I was getting the best
Safety Car
Joined: Jun 2004
Posts: 4,353
Likes: 22
From: Bella Vista Ca
I look at the new C6 ZO6s driving down the road and dream.... All I have had for almost a year is a car on jack stands and a steady drain from my bank account. I'm getting close to buttoning mine up though. 
The crank I had that was bad wasn't an Eagle if that makes you feel better.
The crank I had that was bad wasn't an Eagle if that makes you feel better.
Le Mans Master
Joined: Jul 2010
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Me to I'm only around 700whp drive for a week, up on stand for two mounth. Seems like this is the norm with my car one thing or another. It never fails. But i must admit when it comes of the stands and the gas pedel to the floor it remines me why i continue to put up with the break downs and upgrades that are not needed but wanted. Anyway
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Team Owner
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From: cookeville tennessee
Me to I'm only around 700whp drive for a week, up on stand for two mounth. Seems like this is the norm with my car one thing or another. It never fails. But i must admit when it comes of the stands and the gas pedel to the floor it remines me why i continue to put up with the break downs and upgrades that are not needed but wanted. Anyway
Robert
Thread Starter
Le Mans Master
Joined: Jan 2009
Posts: 7,767
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From: East Texas
shes alive !!
ok its back up and running
everything seems good drove it to work a last 2 days only thing is the new drive line coupler makes a rattle sound like a loose catalytic converter but mike warned me about that so Im going to live with the rattle
everything seems good drove it to work a last 2 days only thing is the new drive line coupler makes a rattle sound like a loose catalytic converter but mike warned me about that so Im going to live with the rattle
Race Director
Joined: May 2005
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From: West Norriton PA
St. Jude Donor '08
I wonder why they rattle so much ? I had one of the earlier versions and i didn't here anything other than the solid metal couplings that transmitted some noise when they were spinning away.
Thread Starter
Le Mans Master
Joined: Jan 2009
Posts: 7,767
Likes: 19
From: East Texas
Now I see why he sold it but some guys say that it will stop my main thrust from going out because it can slip I just pray the thrust holds up now!
http://www.rpmtransmissions.com/newproducts.html
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
I have the last part at the bottom of this page got it used from Mike a member he said it was too loud for him Now I see why he sold it but some guys say that it will stop my main thrust from going out because it can slip I just pray the thrust holds up now! http://www.rpmtransmissions.com/newproducts.html
Now I see why he sold it but some guys say that it will stop my main thrust from going out because it can slip I just pray the thrust holds up now! http://www.rpmtransmissions.com/newproducts.html
Safety Car
Joined: Jun 2004
Posts: 4,353
Likes: 22
From: Bella Vista Ca
I have the last part at the bottom of this page got it used from Mike a member he said it was too loud for him Now I see why he sold it but some guys say that it will stop my main thrust from going out because it can slip I just pray the thrust holds up now! http://www.rpmtransmissions.com/newproducts.html
Now I see why he sold it but some guys say that it will stop my main thrust from going out because it can slip I just pray the thrust holds up now! http://www.rpmtransmissions.com/newproducts.html At least you don't have to stress about pushing the crank forward again and burning up the thrust bearing. Maybe some type of thick lube would help with the rattle. I was going to try that but the car didn't stay together long enough to experiment.Glad you got the car back on the road, wish I could say the same for my car. Maybe this weekend...
