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S80 '98-'06 / S60 '00-'09 / V70 & XC70 '00-'07 General Forum for the P2-platform S60 / V70 / XC70 / S80 models |
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"Clonk" still there after replacing enginemountsViews : 3793 Replies : 47Users Viewing This Thread : |
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Jan 18th, 2019, 08:59 | #1 |
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"Clonk" still there after replacing enginemounts
So what's next on the list?
Replaced all engine mounts bar the front vacuum/oil one (that was replaced 2 years ago). So - right-engine-one (old one looked perfect), - top one centre (old one had some more play than the new one, didn't replace the left and right ones which attach the crossbar, couldn't find them), - rear vacuum mount and - the gearbox-anti-torquing one (which was Hutchinsons as I couldn't find Lemförder in the shop I ordered from, but clearly visible were still the top of the letters "L" and "V" from "VOLVO"in the part where someone had ground some markings away ). The engine sits higher, the rubber stop between subframe and gearbox had 2mm clearing and now has about 1cm clearing (this was before driving off, so might have gone down a little). There was a distinct difference of about 1cm between the old and the new rear vacuum mount when sitting on the workbench. All mounting was reasonably uneventful: Rear engine mount was the hardest: we had a 14mm socket with a 1/8th (not 3/8th) extension and with slightly bending the steeringrod or whatever metal bar is smack in the way, with a tire-fitting-iron, it fit nicely. The bending is just a mm or so, so I consider this more than acceptable. Getting it out was also a bitch, I suppose people without AWD will have it easier, then again, you Brits might have stuff linked to the steeringwheel rod in the way. I got it out on the right side of the rear-drive-shaft. Started at 9:30AM, was done at 2:30PM, most of that time, my brother-in-law was helping out (also V70 owner). And by far most time was lost on (1) getting out the darn rear-vacuum mount (what joy this is going to be getting out the turbo, next project...) and (2) making sure I hadn't forgotten to tighten any bolts. But the "clonk" is still (partially) there. So what's next? The suspension? Edit: I hear it when accelerating mildly and if I brake hard enough it will do so again with the next acceleration. Might also do it slightly when braking hard enough to achieve said 'reset of the clonk'. It might be left front above the wheel, but that might also be because I somewhat expect it to be the strut somehow. [offtopic] I also tried adjusting the steering stops and snapped a bolt. Which idiot insists on putting steel bolts in aluminium? [/offtopic]
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Ex police Jan '04 V70 D5 AWD geartronic, and I've got the antenna-holes to prove it. Last edited by R-P; Jan 18th, 2019 at 11:22. |
Jan 18th, 2019, 12:13 | #2 |
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Look at the front control arm bushings.
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Jan 18th, 2019, 16:22 | #3 |
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Location: Kent, UK
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subframe bushes?
I have a similar hard to find occasional clonk on my S60, one suggesrion was worn subframe bushes, (there are 4) could be your culprit perhaps? How many miles has yours done?
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Jan 18th, 2019, 21:14 | #5 |
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I had a similar problem - not very loud though. It turned out to be CDs in clamshell cases in the centre console rolling back and forward!
Probably isn't that but you never know! CV joints are the other culprits for clunking traditionally.
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2016 XC70 D5 LUX |
Jan 18th, 2019, 21:34 | #6 |
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Last Online: Jun 21st, 2021 20:47
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Check the driveshaft bolts are present and tight. They come loose causing the driveshaft to clonk about.
This exact problem just faced a guy over on fb as a matter or fact. Replaced all mounts, clonk! After people saying about the bolts, he checked, they werent tight. Bought new ones (theyre stretch bolts) and greased the splines, tightened correctly, all is now rosey. |
Jan 18th, 2019, 22:40 | #7 |
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Hi, I had a similar problem with my mk 1 V70 some years ago, turned out to be brake pads moving within the calipers
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Jan 21st, 2019, 10:18 | #8 | |
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Quote:
Maybe I should fit the old ones and tighten them from scratch, pretty sure I still have them and I guess the current ones came with the control arms... not sure... Will look into all other suggestions as well! Thanks! Edit: 360000km or roughly 225000miles. And 120k miles less for the engine.
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Ex police Jan '04 V70 D5 AWD geartronic, and I've got the antenna-holes to prove it. Last edited by R-P; Jan 21st, 2019 at 10:21. |
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Jan 21st, 2019, 11:17 | #9 |
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Only other thing left it would seem is cv joints, and dmf.
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Jan 21st, 2019, 20:40 | #10 |
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I'm considering simply changing both the drive shafts. Problem is that I don't know that is my issue...
I replaced a gator that I (not actually me, but someone helping me...) poked a hole in. Volvo gator was >60 euro, some other brand was 35 or so and closer by, but was lousy. (Leaked the grease several times before I finally managed to clamp it closed well enough, not knowing how much grease there is still in it...) So two gators would be at least 100 euro. A complete drive shaft is 130euro!!!!! |
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