Transmission Torque Mount bolt hole broken off

fitz548 · Post by **fitz548** » 03 Dec 2024, 23:03

Hello all,

I hope everyone is doing well,

I have an interesting issue i noticed today when i was underneath the wagon at first i was fixing the right front fog lamp it has not worked in a good while i have Led Headlights and Led fog lamps the right side wiring got green corrosion on the plug and several other areas of the wiring so i removed all that mess and just installed a regular old yellow fog lamp on that side its cheesy i know but its fixed for the time being.

The other Main issue is when underneath the car i though hey i have another transmission Torque mount let me go ahead and change that it has not been done in along time.

when i hooked up my socket and ratchet i noticed the bolts were loose like finger tight i thought what in the Hell????
then i noticed on the back of the mount that bolts into the transmission the bolt was missing and a big chunk of aluminum was gone also like someone over tightened the bolt and broke off the bolt hole and bolt.

i dont know when this happened i had my transmission rebuilt some years back at a place in Torrance california called Atlas transmissions this guy is a volvo specialist and he did an amazing job rebuilding my transmission.

he did all this work including installing a new valve body and solenoids also for the price of 1400.00 i know this is unheard of because i have checked around a few places in Texas and other areas and people tell me yea uhhh 3500.00 or more.

back to the Torque mount i got the back bolt out barely it was on there really tightly i removed the old mount and it was a little worn out i installed the new mount and tightened the bolts onto the subframe. then i tightened the back bolt everything seems ok should i worry about that one bolt thats missing along with the chunk of aluminum thats also missing? here are a few pictures for yall

Post by **scot850** » 03 Dec 2024, 23:10

While less than ideal, can you use a longer bolt? How far do the threads go into the broken hole?

Neil

fitz548 · Post by **fitz548** » 04 Dec 2024, 00:08

Hey whats up yea i will need to get the size of that bolt looks like an M10 possible looks like its about a little more than half and inch missing

fitz548 · Post by **fitz548** » 04 Dec 2024, 00:18

i would imagine the threads go over halfway down into the hole probably the threads stop about half an inch from the very bottom of the area in length

Post by **scot850** » 04 Dec 2024, 08:37

The bolt is the same as the one beside it.

Neil.

Post by **abscate** » 04 Dec 2024, 08:59

You guys down South suck. Ive never seen the clamp for the power steering lines with a torx screw that wasnt a hunk of rust. I dont even get the Torx set out, I just reach for the grinder

Load that hole up with grease, put a bolt in it, and drive it another 200k miles

fitz548 · Post by **fitz548** » 05 Dec 2024, 02:42

I looked up the part number on the bolt and turns out its an M10 and so i ordered some M10 grade 8.8 zinc plated bolts from amazon they will be here in a few days-

yea as far as the clamp on the power steering lines i never really paid must attention to the bottom of the car most of the time when i was living on the west coast i had a shop perform all of the repairs its only now some years later that i have a house and a good size garage and i am fixing everything myself.

This car was originally from PNW so i was not sure what was done to it over the years.

fitz548 · Post by **fitz548** » 08 Dec 2024, 23:25

Ok this is fixed now i actually used a Depstech Borescope to look inside the bolt hole and the threads were clean. i think maybe the bolt fell out cause it might have come loose at one point.

I used a bolt that was about 1/4 inch longer and i was able to secure that bracket i tried using a longer bolt but it bottomed out in the housing so this other size was good enough now on to the next task.

Thanks for all your help everyone.