Torque Converter Threads-Stripped-Recommendations on repair
07-04-2017, 06:59 PM
#1
Racer
Thread Starter
Torque Converter Threads-Stripped-Recommendations on repair-Fixed
I found that about 15 years ago the 91 S4 I now own had torque converter bolts back out and mangle the TC housing along with damaging one of the six threaded blocks on the TC that will only hold maybe 8 ftlbs of torque before stripping. I tried a longer bolt and I don't think there is enough room for a Timesert or Helicoil. I was thinking of just cementing it in with thread-locker but I didn't know if that was a good idea and if I did which would be the best to use? Recommendations please!
Last edited by Taguid; 07-17-2017 at 12:10 PM.
07-04-2017, 07:04 PM
#2
Rennlist
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I found that about 15 years ago the 91 S4 I now own had torque converter bolts back out and mangle the TC housing along with damaging one of the six threaded blocks on the TC that will only hold maybe 8 ftlbs of torque before stripping. I tried a longer bolt and I don't think there is enough room for a Timesert or Helicoil. I was thinking of just cementing it in with thread-locker but I didn't know if that was a good idea and if I did which would be the best to use? Recommendations please!
Anyone that rebuilds these transmission or dismantles these cars is tripping over them.
07-04-2017, 09:22 PM
#6
07-04-2017, 09:29 PM
#7
Racer
Thread Starter
Half the price and its been rebuilt. Instead of a used one without a warranty or unknown mileage. I thought it was a better purchase. If 928 Intl had the same product I would choose them!
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07-05-2017, 12:37 AM
#8
Team Owner
Umm you will get a low mileage part from 928 INTL and it comes with a one year warranty,
the TCs dont usually need to be rebuilt in these cars.
this path is kinda like taking your car to a mechanic that works on Porsches but has not worked on a 928.
VS taking your car to an expert 928 mechanic
the TCs dont usually need to be rebuilt in these cars.
this path is kinda like taking your car to a mechanic that works on Porsches but has not worked on a 928.
VS taking your car to an expert 928 mechanic
07-05-2017, 03:08 AM
#9
Rennlist
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As far as rebuilts go, I have had so many not work correctly, I'll never leave a rebuilt unit in a transmission that I rebuild. (Assuming the transmission comes into my shop having a rebuilt installed.)
However, I agree that over $400 is an absurd price for a used convertor. Give 928 International a call....they have to have these things stacked up like used tires, like I do.
If they won't "adjust" that price....calL me. I'll sell you one.
07-05-2017, 10:34 AM
#10
Racer
Thread Starter
Thanks for the advise, I am opting for untouched used TC from previously functioning car. Donald Smith made me an offer I couldn't refuse so hopefully shipping from Canada isn't too bad.
Mr. Merlin-- I get your point
Greg-Thanks for the offer if this doesn't work out, but I think it will, I will give you a call
Mr. Merlin-- I get your point
Greg-Thanks for the offer if this doesn't work out, but I think it will, I will give you a call
07-05-2017, 01:38 PM
#13
Rennlist
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10-20 years from now, when 928 parts become rare and expensive, I might try various methods to salvage more damaged pieces.
At this point in time, some of this stuff is so plentiful and cheap, that making things as perfect as possible seems like a better approach, to me....especially with pieces that rotate and can cause vibration.
If this was in my shop, I'd replace the housing, the flexplate, the internal bearings, and the convertor and never have to think about it again.
At this point in time, some of this stuff is so plentiful and cheap, that making things as perfect as possible seems like a better approach, to me....especially with pieces that rotate and can cause vibration.
If this was in my shop, I'd replace the housing, the flexplate, the internal bearings, and the convertor and never have to think about it again.
07-05-2017, 02:29 PM
#14
Racer
Thread Starter
I placed a call to you about the TC and left my # with Miss Mary. I should have done as you described but I have installed new bearings and circlip on TC housing. That will be next time and hopefully not too soon.
07-05-2017, 05:08 PM
#15
Captain Obvious
Super User
Super User
10-20 years from now, when 928 parts become rare and expensive, I might try various methods to salvage more damaged pieces.
At this point in time, some of this stuff is so plentiful and cheap, that making things as perfect as possible seems like a better approach, to me....especially with pieces that rotate and can cause vibration.
If this was in my shop, I'd replace the housing, the flexplate, the internal bearings, and the convertor and never have to think about it again.
At this point in time, some of this stuff is so plentiful and cheap, that making things as perfect as possible seems like a better approach, to me....especially with pieces that rotate and can cause vibration.
If this was in my shop, I'd replace the housing, the flexplate, the internal bearings, and the convertor and never have to think about it again.