Torque converter bolts got loose, now it won't move at all
Was driving home my 71 c10 from getting freshly painted and noticed it would slip when hitting the gas. I thought i was low on fluid so I continued to drive and then it started to make a rattling sound...I was only a few miles from home so i figured just get home and fix it.
I opened up the pan and 2 out of 3 of the bolts were off! I knew i should have used some thread sealer. Damn! So I bolted it back on hoping that would fix it but now it won't go anywhere. So I guess I messed up something driving it home. Damn! It's a shorty th350 that hasn't given me any trouble at all. Do you think the whole transmission is shot or just the converter? |
Re: Torque converter bolts got loose, now it won't move at all
I would guess that the loose converter wobbling around destroyed the pump in the transmission.
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Re: Torque converter bolts got loose, now it won't move at all
I have seen many a convertor come loose and never had one destroy the pump. However, it could conceivably happen. How many miles on the transmission? You can check for a pump failure by disconnecting a cooler line and see if its pumping oil. If not the pump is indeed bad. It can be the converter was not correctly spaced from the flex plate. Either too tight or too loose will cause the pump to fail. Too tight is typically an immediate failure. So the odds are it was not fully engaged at the pump and the converter looseness was all it took to do the final wearing on the pump lugs. If you have no transmission oil pressure/cooler flow it will have to come out. Then you can inspect the converter snout and the pump lugs to see where you need to go next.
This is the longer version of what Richard indicated. |
Re: Torque converter bolts got loose, now it won't move at all
Thanks, ill check out if the pump is bad. Found an old buick th350 for 150 bucks, looks like it will fit with an adapter plate, anybody ever bolt up one like that to a chevy?
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Re: Torque converter bolts got loose, now it won't move at all
Joe, just use the pump and the torque out of the Buick trans, it's easy to swap ........
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Re: Torque converter bolts got loose, now it won't move at all
[QUOTE=J Found an old buick th350 for 150 bucks, looks like it will fit with an adapter plate, anybody ever bolt up one like that to a chevy?[/QUOTE]
Some Buick transmissions are BOP pattern. Buick, Olds, Pontiac. Some are the corporate case which will fit both the SBC's and the BOP. So the answer is depends on what year. It certainly would be less expensive to find one that fits without the adapter. Or switch pumps. Still have to confirm you are not mixing lock up 350 pumps with non-lock up pumps. |
Re: Torque converter bolts got loose, now it won't move at all
Exactly, ^^^^^^ what Accelo said.
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Re: Torque converter bolts got loose, now it won't move at all
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Re: Torque converter bolts got loose, now it won't move at all
That's a good idea as well ^^^^ good time to upgrade to overdrive ..........
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Re: Torque converter bolts got loose, now it won't move at all
Cool, im picking it up today, hoping its the same length, if not ill do the pump and converter swap, thanks for all the help, ill post some pics soon!
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Re: Torque converter bolts got loose, now it won't move at all
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Re: Torque converter bolts got loose, now it won't move at all
1 Attachment(s)
picked up the transmission, it's out of a 70 skylark, so it's exactly the same length as the chevy. guy said it works great so i ordered the converter plate and will swap it next week.
Attachment 2133124 not bad for maaco! |
Re: Torque converter bolts got loose, now it won't move at all
so i tried to bolt up the buick tranny with the adapter plate but the original torque converter was too big! I need a low profile one, stock stall speed, anybody got any recommendations? not looking for anything fancy, i drive this about 100 miles a year. saw this one at autozone, wonder if it will fit the th350 (I think power glides are different? this is what came up when i put in my truck) :
https://www.autozone.com/drivetrain/...-b3/263397_0_0 |
Re: Torque converter bolts got loose, now it won't move at all
Yes that torque will fit a TH350 (and a TH400), as long as your trans is NOT lockup and yes Power Glides are different
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Re: Torque converter bolts got loose, now it won't move at all
Are you certain that you got the converter all the way into the front pump?
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Re: Torque converter bolts got loose, now it won't move at all
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as for the lockup, non-lock up, i read it's for towing. but what about loading heavy **** in the bed, does that matter? will probably just go with non-lockup. |
Re: Torque converter bolts got loose, now it won't move at all
TH350 and TH400 converters interchange. I am not aware of different "low-profile" versions. I would also think that it did not go the second click into the pump as suggested above. If you rotate the converter while pushing gently as you install it it should have 2 different times that it clicks in. You can roughly measure rear block face to back of flexplate and the converter lugs should be a little more than that same difference back from the front face of the transmission. If you don't get 2 clicks or the converter is not far enough in, it will not work.
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Re: Torque converter bolts got loose, now it won't move at all
Good luck Joe
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Re: Torque converter bolts got loose, now it won't move at all
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this is a lock up and no lockup https://www.thirdgen.org/forums/atta...50vsth350c.jpg https://www.thirdgen.org/forums/atta...50vsth350c.jpg |
Re: Torque converter bolts got loose, now it won't move at all
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Re: Torque converter bolts got loose, now it won't move at all
Glad to hear it man, right on, good for you!!!!
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