Torque Value Questions

Post by **ARCHINSTL** » Thu Aug 17, 2006 11:41 pm

Well, I'm finally going to install the motor and transmission mounts (beginning) today.
I'm going to support the block and suspend the rack and then drop the front X-member to access the front mounts.

I could find torque values for the front mounts to the block and X-member, and for the rear X-member to the body.
But no values for the rear mount itself to the transmission case or to the X-member.
Also no values for the front X-member to the "chassis rails."
Also no values for the two diagonal tubes which attach to the center of the front X-member and to the "chassis rails" just behind the lower arm. Heck, I can't even find any FSM listing for these two tubes or their purpose; I presume some kind of stiffening?

Thanks to all,
Tom M.
PS: I asked these questions of the Mothership in CA, but no answer was forthcoming for lo, these many months...

keith · Post by **keith** » Sat Sep 30, 2006 3:59 pm

I'm sure you've finished this job by now. Rear support member, see page MT70, 70 ft/lbs.

I don't know about those tubes either, one of mine has been broken for years.

If you think finding information is hard in this FSM, you should see the FSM's for a Saturn.

Post by **ARCHINSTL** » Sat Sep 30, 2006 8:15 pm

I knew about the 70 ftlbs of the rear X-member to the body. After a time I found the figure for the front X-member to the unit body - 65 ftlbs - it was in the Maintenance section at the front of the FSM, along with spark plug gap, etc.......I had already torqued them to 75 ftlbs, so decided to let them be.
Transmission:
I never did find anything for the two bolts holding the mount to the transmission, so did 33 ftlbs - same as the front mounts to the engine.
Never found anything on the four bolts which hold the mount itself to the X-member, so did 20 ftlbs, as these were small bolts.
Thanks, though.
Tom M.

Mac · Post by **Mac** » Sun Oct 01, 2006 1:14 pm

I'm planning on loosening the front engine mounts and lifting the engine up by the oil pan, i hope that will give me enough space.

BTW, anyone noticed a shock (torque dampener?) connecting the engine to the sub frame? its on the RH side of the car (on your left if your looking under the hood from the front) I haven't seen it listed on any parts websites, so i'm thinking its a toyota only part. has anyone replaced it?

Post by **ARCHINSTL** » Sun Oct 01, 2006 2:32 pm

I was chary about lifting by the oil pan, so, after supporting the engine by bottle jacks on the iron pieces between the engine and the actual mounts, I dropped the X-member (after loosening the sway bar) and did it that way.
I WOULD NOT RECOMMEND THE PROCEDURE I USED ! ! ! !
"PITA" is too kind of an acronym! ! !
When (as) the X-member was loosened, the body rose up slowly, as the weight of the engine was off it (duhh). This was not a great problem, but did result in having to use various tools and scissors jacks to lever it all back together.
You must loosen the AC compressor, if so equipped, to give room for hopefully tiny (but strong) fingers to work.
It's also quite difficult to ge a torque wrench in there...
My method was very frustrating, but I did triumph - eventually.
I would certainly recommend renting/borrowing an engine hoist and lifting by the front "hook" on the block's top.

Incidentally, the "engine absorber" is not available anywhere *. Butler Toy in Indy (which is my favorite OE parts source) did an exhaustive search with other dealers nationwide, and came up with nada. The Mothership recently told me that I must use salvage parts. I asked if it is necessary, and could I make something out of a threaded rod and rubber bushings (I think takza had this as a sugggestion a couple of years ago), and also if something similar would be available at an industrial shock absorber company.
It replied that "Yes, it is necessary, and Toyota does not recommend using anything else other than the original part, for fear of death, dismemberment, or destruction." OK, I added that last phrase. Anyway, it's a real Catch 22 situation for various models of Toyotas of the period. I wound up leaving mine mounted, although it is so "soft" that it seems irrelevant.
Tom M.
*I forgot that you are in Upper North America; maybe Toy Canada has some? Please keep us posted if you find a source up there. Thanks.
EDIT :
Please note that I did not mean to imply that I lifted the engine high enough to install the mounts: I simply supported the weight of the engine while removing the X-member. Something else that came in handy was a set of stubby combo wrenches.
The transmission mount replacement was a piece of cake, relative to the front. Of course, once everything was bolted together, "leverage" had to be used to line up the 2 X-member mount bolts to the frame.
Also, if the AC compressor is loosened and moved, when replacing the 4 bolts, install all 4 loosely before tightening - otherwise they will cause the compressor to become misaligned with the bracket's holes - I know.....

keith · Post by **keith** » Sun Oct 01, 2006 5:02 pm

Why did you have to lift the engine or drop the X member? I didn't do any of that when I changed the transmission. I dropped the rear cross member. Accidently put it back in upside down, which made the driveshaft hit the exhaust pipe and wear a hole in it. Had to put in a new muffler after fixing that, which was difficult since it was originally a Calif car and that muffler is no longer available. Had a muffler shop make me an adapter.

Mac · Post by **Mac** » Tue Oct 03, 2006 12:32 am

next time i'm at the dealer i'll ask if they have one of those engine shock absorbers available in Canada.

the head parts guy said to me "you can get ANY part for ANY toyota, its just a matter of if it has to come from Japan or not" sounded like a pretty bold thing to say, but i guess i can hold it to him if its not available