• Welcome to the Contour Enthusiasts Group, the best resource for the Ford Contour and Mercury Mystique.

    You can register to join the community.

trans mount

M

marioSVT

askeered of teh gays
Joined
Sep 22, 2008
Messages
209
Location
detroit MI
okay, this is my 2nd time my transmssion mount screw broke. i dont beat on the car, i dont drop the clutch or anything like that. idk what i can do to stop this anoying problem. now the trans mount isnt broke all the way since the trans isnt jumping up alot only a little, but i know what the problems is. anyone out there know how to pervent his dumb problem, so i can stop it for GOOD !!!

pm for info.. or just leave it here.. thankss
 
zorrex said:
Grade 8 or 9 bolt. Call it done.
Click to expand...

grade 8 is a us thread grade, i've never heard of grade 9, and the bolts are metric, so neither of those applies anyway. metric hardest grade is a 12.9, and it will be stamped on the head. us threads wont have the grade stamped on them, you will need to decode the marks on them
 
turbo_fox said:
grade 8 is a us thread grade, i've never heard of grade 9, and the bolts are metric, so neither of those applies anyway. metric hardest grade is a 12.9, and it will be stamped on the head. us threads wont have the grade stamped on them, you will need to decode the marks on them
Click to expand...

Ahhh this is true. US size fail. :nonono: Grade 9 exists, but I'm not sure what the difference is from grade 8. We spotted them while searching for grade 8 bolts to construct a steel structure...hmm...
 
I just replaced my LH trans mount bolt. Stock was a M12 X 1.75 X 60mm I think, grade 8.8, I replaced it with a 10.9. I'm not sure why mine broke either since like yourself I don't beat on the car.
 
Just a thought or two. Dead roll restrictors could let the whole thing rotate enough to break bolt faster. Roll restrictor mainly there to stop roll, but on Contour they do provide some support as well. If sagging, loss of support will apply more weight and twist directly to next loaded spot, the bolt.
 
Funny thing is that I was preparing to fix my rear RR because it was sagging a little and I figured that was the cause of my transmission hanging so low. Turns out it was fine and once I fixed the trans mount the rear RR returned to a neutral position.:shrug:
 
You must log in or register to reply here.
Back
Top