Broken engine mount
#1
Broken engine mount
Seems like I've been driving around for a while with a broken upper engine mount. I've ordered a replacement and will fit it as soon as it arrives this week, but what damage could this have done to other components? I presume more wear on the other engine mounts. I inspected those as well but they look fine. Anything else I should specifically check for?
Currently while driving there is considerable noise from about 30mph up, the pitch of which increases with velocity, could that be due to the broken engine mount? I checked the wheel bearings by jacking the front end up and spinning the wheels but they seem to rotate just fine. Didn't look for wheel movement as the Haynes manual suggests, will try that next time I have the car up. I know there is some problem with the tires so the noise could be all tire noise, I will rotate them front-back and see what happens. What else could be causing the noise?
While looking around under the engine I noticed that there is oil on the engine splash shield which is dripping down from the turbo. Tech posted somewhere else that some oil on the turbo is normal and by the looks of the mess on the angle gear it's been dripping for some time. The volvo mechanics didn't say anything about this when I got it serviced at 120K so can I assume everything's fine?
Currently while driving there is considerable noise from about 30mph up, the pitch of which increases with velocity, could that be due to the broken engine mount? I checked the wheel bearings by jacking the front end up and spinning the wheels but they seem to rotate just fine. Didn't look for wheel movement as the Haynes manual suggests, will try that next time I have the car up. I know there is some problem with the tires so the noise could be all tire noise, I will rotate them front-back and see what happens. What else could be causing the noise?
While looking around under the engine I noticed that there is oil on the engine splash shield which is dripping down from the turbo. Tech posted somewhere else that some oil on the turbo is normal and by the looks of the mess on the angle gear it's been dripping for some time. The volvo mechanics didn't say anything about this when I got it serviced at 120K so can I assume everything's fine?
#2
RE: Broken engine mount
Fixed upper engine mount, vibration is worse lol, guess replace the other engine mounts.
Noise from the drivetrain is getting worse, I guess I should take this thing into the shop next week but I'd like to have some idea of what it is before the dealer tries to empty my bank account. Between 20-40mph it sounds like something is rubbing, a sort of pulsing whua whua whua noise. No sign of uneven tire wear or rubbing from the tires, tire rotation doesn't make any difference. Driveshaft carrier bearing? I dunno. Then above 40mph the rubbing noise disappears and there is a loud whirring brrrrrr noise, actually the whirring noise is there at all speeds it just gets louder at higher speeds. I'm guessing that's the angle gear. Crap. The transmission fluid is brown so I will flush that this weekend and check the oil in the angle gear, but I doubt any of this is going to help. What fluid goes in the angle gear?
Noise from the drivetrain is getting worse, I guess I should take this thing into the shop next week but I'd like to have some idea of what it is before the dealer tries to empty my bank account. Between 20-40mph it sounds like something is rubbing, a sort of pulsing whua whua whua noise. No sign of uneven tire wear or rubbing from the tires, tire rotation doesn't make any difference. Driveshaft carrier bearing? I dunno. Then above 40mph the rubbing noise disappears and there is a loud whirring brrrrrr noise, actually the whirring noise is there at all speeds it just gets louder at higher speeds. I'm guessing that's the angle gear. Crap. The transmission fluid is brown so I will flush that this weekend and check the oil in the angle gear, but I doubt any of this is going to help. What fluid goes in the angle gear?
#3
#4
RE: Broken engine mount
Okay, I will order new engine mounts. The service record indicates the upper mount was replaced at 60K but I see no record of the other mounts ever being replaced so I'll get on those.
I really hope the noise is a wheel bearing but there's no play in any of them to tell me that they're bad, the noise doesn't change when turning right or left and it appears to be coming directly from under the car as opposed to one particular side / wheel well. Is it safe to put the car up on 4 jackstands and then run the wheels up to say 20mph or should I take it into a shop and get them to look at it on their lift?
I really hope the noise is a wheel bearing but there's no play in any of them to tell me that they're bad, the noise doesn't change when turning right or left and it appears to be coming directly from under the car as opposed to one particular side / wheel well. Is it safe to put the car up on 4 jackstands and then run the wheels up to say 20mph or should I take it into a shop and get them to look at it on their lift?
#6
RE: Broken engine mount
I had the same issue with mine. The lower mount fixed it. Took me all of 10 minutes to change out. I bought the factory one but then found out IPD has a nicer, stronger one. I guess those lower ones break an awful lot. I thought I needed a new upper one as well but that wasn't the case.
I bet you will take the old lower front one off and it will just spin like a top, the arm piece. Let us know what happens!
I bet you will take the old lower front one off and it will just spin like a top, the arm piece. Let us know what happens!
#7
RE: Broken engine mount
Well, today while diving to the river I was taking some turns at like 60mph and the pitch was changing, plus I was driving with the window down and could hear a squealing from the left from wheel well, so maybe it is a bearing. Anyway, I ordered all new engine mounts and two front wheel bearings. It'll fit those and see how it turns out, thanks for your advice everyone.
#9
RE: Broken engine mount
Someone on the XC70 site was talking about replacing the seal between the drive shaft and the hub. VADIS suggests to replace this only if it is worn or damaged. I didn't even know there was such a part, neither FCP Groton or IPD sell them with their wheel bearings. I tracked one down here What do you think? Do these seals usually need replacing or can I just go with the old one? VADIS also recommends installing a new nut on the ball joint, I assume that's because it's a nylon self-locking nut? Again, I can't find a source for this, can I just reuse the old one or should I stop by the dealer and see if I can pick up a new one for about $20?
#11
RE: Broken engine mount
Good advice, they definitely didn't need replacing. The wheel bearing did though, man the old one feels really rough, like the bearings are all corroded or something, but there's no play or anything in the bearing, I guess that sealed-for-life thing didn't hold out too well. Anyway now the drivetrain noise is cured, thank you very much. Couldn't get the driveshaft out of the hub without taking the whole steering knuckle off but that wasn't too much extra work and it enable me to clean everthing up pretty good. I borrowed a drive-axle press from Autozone but didn't need it. As soon as the axle nut was loose I could just push that thing in by hand. Curiously the bolts on the hub were just regular bolts, not E14 bolts, with big washers fixed between the head and the thread that I couldn't remove. I got replacement bolts from IPD which are the E14 bolts that had no washers, any concern there or are these bolts interchangeable?
#13
RE: Broken engine mount
Seems like I've been driving around for a while with a broken upper engine mount. I've ordered a replacement and will fit it as soon as it arrives this week, but what damage could this have done to other components? I presume more wear on the other engine mounts. I inspected those as well but they look fine. Anything else I should specifically check for?
#15
Yup, that worked, thanks for giving me the confidence to try it, I couldn't see what VADIS was referring to when it said "fold the bracket forward" but after loosening the nuts I just tried it and yep, hey presto the whole thing folds forwards, lol. The nut is still very difficult to access, I had to use a U-joint and a 6" extender bar, but I couldn't accurately torque it back on, I guess I'll just check it again in a few weeks to make sure it still tight.
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