atefitty Posted October 6, 2016 Report Share Posted October 6, 2016 My 850R developed a vibration at idle and rattling upon acceleration and I had an idea what it was and sure enough here's the culprit...hopefully it was also causing the annoying pull to the left I had during breaking. Link to comment Share on other sites More sharing options...
rainnova Posted October 6, 2016 Report Share Posted October 6, 2016 Exactly what is it? A motor mount? Link to comment Share on other sites More sharing options...
T5power Posted October 6, 2016 Report Share Posted October 6, 2016 lower passenger side mount. can cause severe vibrations and metal on metal knocking when it has detached. same issue happened on mine. Link to comment Share on other sites More sharing options...
thedrill Posted October 6, 2016 Report Share Posted October 6, 2016 Mount should cure the vibration issue, pulling left while "braking" could be a few things.. tires, ball joints or control arm bushings. Link to comment Share on other sites More sharing options...
atefitty Posted October 6, 2016 Author Report Share Posted October 6, 2016 I've checked A Arm bushings, ball joint and tie rods for looseness and its all pretty snug. I also checked for stuck calipers. I was thinking maybe when I hit the brakes the motor was shifting slightly causing the pull to the left...it always goes left. Oh, also Damn thats the original Volvo motor mount. OEM stuff is expensive but it sure does last longer. Thats 19 years it lasted!!! I know because I've had this car since it was 2 years old. Link to comment Share on other sites More sharing options...
thedrill Posted October 6, 2016 Report Share Posted October 6, 2016 I've seen bad brake hoses cause the same issue, also try swapping the tires left to right. Link to comment Share on other sites More sharing options...
Fudge_Brownie Posted October 6, 2016 Report Share Posted October 6, 2016 Yep, that one can cause some slightly unintuitive symptoms. You're right that as you hit the brakes, the motor shifts but in an awkward way. And as you've noticed, the original equipment can sometimes be worth paying for. It is often quality. That's called the passenger side mount by most around here, but I think it's also sometimes confusingly listed as the 'front' mount because they mean front of the engine, not front of the car. Link to comment Share on other sites More sharing options...
atefitty Posted October 6, 2016 Author Report Share Posted October 6, 2016 I think 850's would of had a bigger following if they were RWD cars like the BMW's but they do well in snow and stuff. It was a woman that designed this car, I don't think most women care about drifting and rear wheel burnouts..It's weird because I think the 850R was designed in mind to compete with the M3 which is RWD. Link to comment Share on other sites More sharing options...
Fudge_Brownie Posted October 6, 2016 Report Share Posted October 6, 2016 1 hour ago, atefitty said: It was a woman that designed this car, I don't think most women care about drifting and rear wheel burnouts. I really doubt that the design decision to use FWD was made by a single person, and especially not based on what their personal preferences might be. Link to comment Share on other sites More sharing options...
ErikS Posted October 6, 2016 Report Share Posted October 6, 2016 1 hour ago, atefitty said: It was a woman that designed this car, I don't think most women care about drifting and rear wheel burnouts Jan is pronounced "Yahn" in that part of the world, he would have been called "John" here in the US. Link to comment Share on other sites More sharing options...
atefitty Posted October 6, 2016 Author Report Share Posted October 6, 2016 32 minutes ago, Fudge_Brownie said: I really doubt that the design decision to use FWD was made by a single person, and especially not based on what their personal preferences might be. I agree totally with your point. What I was getting at is even though the 850 was the best selling model ever it may have done even better as a rear wheel drive vehicle. Link to comment Share on other sites More sharing options...
TryingBe Posted October 7, 2016 Report Share Posted October 7, 2016 4 hours ago, atefitty said: I agree totally with your point. What I was getting at is even though the 850 was the best selling model ever it may have done even better as a rear wheel drive vehicle. I doubt it. Amazon, 140, 240, 740, 760, 780, 940, 960, and many more are all RWD. Link to comment Share on other sites More sharing options...
atefitty Posted October 10, 2016 Author Report Share Posted October 10, 2016 On 10/6/2016 at 8:40 AM, thedrill said: Mount should cure the vibration issue, pulling left while "braking" could be a few things.. tires, ball joints or control arm bushings. So I installed the motor mount and my 850R doesn't pull to the left when I hit the brakes now..That was really annoying and I would not of known it was the motor mount if the vibrations were not there. So anyone with an older 850 I'd take a look at the mount located behind your rf wheel at some point. Don't wait until it causes driveability issues like I did. With a broken mount the motor will sit lower than it should. The mount also has a wear indicatior built into it. Link to comment Share on other sites More sharing options...
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