Thrust bearing problems

[Sean13]

I have had two different motors which thrust bearing got ate up I have checked everything I can think of and everything checked out was sitting down today and was thinking so both motors are stock bottom end I have ported intake and plenum 67mm turbo 60” injectors do y’all think my crank is bending a bit and causing crank to go into thrust bearing ? Before I put money in it I looking for any ideas on this don’t want to spend money on a forged crank are girdle and still have this issue thanks

 

[xlr8ngn]

Which side of the thrust bearing? How much space do you have between the flexplate and converter?

 

[Sean13]

Back side of bearing and top surface of upper thrust bearing spacing on converter is in specs pulled it off and sent to the maker and he checked it out no signs of ballooning our Trans line pressure pushing converter too far

 

[1KWIKSIX]

Which side of the thrust bearing? How much space do you have between the flexplate and converter?

Exactly what I was thinking .
If it wasn’t spaced correctly it could be a factor

 

[Sean13]

200 4r and a boss Hogg convertor

 

[1KWIKSIX]

SFI flexplate or factory 109 flexplate?

 

[Sean13]

Factory 109

 

[xlr8ngn]

Any pics of the bearing? I don’t know the exact specs, but you need to be able to slide the torque converter roughly an 1/8” away from the flexplate. This ensures that you’re engaged far enough into the trans, but not too close to create forward thrust. How much crank thrust clearance do you have with a new bearing?

 

[LANDAU LIMITED]

Two different engines, same car, trans and convertor or different? All stock factory bearings on both? I would check convertor outlet pressure before you build something nice.

 

[Sean13]

Yes same trans and converter stock bearings no pics throw the in trash installed converter them pulled it out 1/8 in there is no scoring on snout of converter

 

[Sean13]

Sorry xmass whiskey starting to flow thanks for the replies I will get back on this tomorrow merry Christmas all

 

[Chuck Leeper]

Excessive converter out pressure....

 

[Sean13]

How do you regulate that pressure ? Tv cable?

 

[Chuck Leeper]

How do you regulate that pressure ? Tv cable?

One of the 200 guys will help with that.
I use the t 400. It has the same issues with thrust brg failure.

200r4 Line Pressure

I am doing a major rebuild on my motor....when my transmission was rebuilt last year a 570(i think) boost valve was installed ,,I was told i should get 250 psi line pressure..(TO HIGH)? ,,I did not put a guage on it yet ,i am worried about my new stroker 109 trust bearing.....my TC is a 9 in cpt...

turbobuick.com

 

[1KWIKSIX]

For torque converter to flex plate spacing Pay particular attention to #8

https://www.coanracing.com/mwdownloads/download/link/id/80/

 

[jckcolarusso]

You need to check cooler line pressure

 

[jckcolarusso]

You should have 45 pounds at idle if you have more then that it will take out the thrust bearing

 

[Sean13]

Ok thanks I will

 

[Sean13]

How do you adjust cooler line pressure

 

[jckcolarusso]

get rid of the boos hog converter