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Thread: Passenger side motor mount bolts break, engine drops into CV joints Reply to Thread
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Topic Review (Newest First)
04-28-2014 08:12 PM
SuperStockAMX Yes..those bolts. Without performing some type of stress analysis, no way to know. The timing belt that was on my car had been there for many, many miles so if they were over torqued, they had been over torqued for a long time.
04-28-2014 06:50 PM
limeyrider SuperStock, Good to hear nobody got hurt.

Are you guys talking about the two vertical studs where the conical 'insulator' bolts to the aluminum timing cover? Do you think they had been over torqued or could it have been something else?
04-28-2014 12:08 AM
SuperStockAMX As the "un-luckiest SVTF owner" I am now replacing that right CV joint again (after the engine crunched the last one). Why? Not sure of the road racers technical jargon as I'm a drag racer but this freeway onramp is a slight corkscrew with a fair amount of pitch in each segment. I swear some highway engineer with a Porsche laid that one out! I've been on that many times and usually have to slow for traffic as it's two lanes that narrows to one lane. This last time I had it all to myself. On a cool night with maybe 5 miles on my summer Michelin Super Sports. I made it to (gulp!) on the last segment which has a slight left bend to it with road pitched, higher on the right. The back in started coming around counter clockwise. I tried to correct and it wasn't stopping. Back came around about 180* and I was in the gravel retention basin to my left sliding sideways at full left lock towards a V'd crash barrier. I said "Oh..snap! I'm going to t-bone that barrier!" The rear went another 45* or so and I missed it, now heading towards a street light on a concrete pedestal. Same thought as I grabbed the e-brake and through the tail around a little more and missed that obstacle and finally stopped.
Yes, feel free to call me a idiot!
Both windows were about 1/3 down and interior was full of dirt & dust. Got out, made a quick inspection and no damage except rock chips to right rear wheel. Decided I better get out of there before DPS arrived.
In driving over the next week I'd hear a thunk every once and awhile. Looked under car and couldn't find damage. Noise came and went. Finally I take it to the lube shop and said this thing has an intermintent thunk and I can't figure it out. So they put it on the lift and pull out a river rock the size of my open hand and almost 2" thick that was wedged between the axle & control arm! I probably had 100 miles driving with that big rock.
End of story it wiped the CV joint as it progressively got worse as I drove it. So it's been parked waiting on a commission check.
I'm wondering if there's a bigger / better CV joint that can be added?
And don't let your kids drive like this 53 year old bone head...
04-19-2014 04:47 PM
Deduce25 Long as your motor mounts are good it shouldn't be an issue. I knew my driver side was bad but was being lazy cause it was cold.
04-19-2014 07:47 AM
SBK86 Damn, that's scary considering I rallycross my SVT. I'm going to check my torque now.
04-18-2014 08:43 PM
Deduce25 Happened to me too. Drivers mount was bad which took out the pass mount dropping the motor screwing up the cv shaft. Good news was it wasnt to bad to fix. Hardest part was finding the axle.
04-04-2014 12:01 PM
mozerman Same thing just happened to mine. Pisses me off.
12-15-2012 11:09 AM
amc49 I used to work on someone's SSAMX back in the mid '70s, I loved the crossram 2X4 bbl. setup on that car.
12-14-2012 10:05 AM
FullthrottleSVT ive heard that the toque on the svtf motor mounts are very sensitive. If they were over tightened (i believe those studs are like 40nm) then that could have been the reason
12-12-2012 05:43 PM
sleepyboy Wow that is crazy I've never heard of that happening before either. Have you had the timing belt replaced recently? Maybe who ever worked on it didn't screw the stud in all the way? That's the only way I could think of that happening.
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