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Join Date: Jun 2001
Location: Kent. UK. 944s2--'89
Posts: 379
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Slight roughness
Hi, I think my engine has a slight vibration at tickover and wonder if it could be engine mounts or possibly balance shaft belt, which has just been replaced. Apart from that the car drives really well, Is there a way of telling which it might be please? If the belt was one tooth out, would it be really rough, rather than slightly?
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944s2 Last edited by hoover; 12-19-2020 at 06:11 AM.. Reason: Added words |
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12-19-2020, 06:06 AM
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I had both issues over the past year. The bad mounts resulted in a vibration at idle speed and it went away when the rpms were increased. My mis-adjusted balance belt resulted in a vibration around 4K rpm.
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1984 944 Zermatt Silver 1987 951 Flamingo Metallic |
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12-19-2020, 07:00 AM
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Join Date: Jun 2001
Location: Kent. UK. 944s2--'89
Posts: 379
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Ah, that’s very helpful. I’ve not noticed an issue at 4K. I will of course now double check, thank you.
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944s2 |
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12-19-2020, 07:06 AM
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Had a vibration issue from 3-4000 rpms. Misadjusted balance belt as well.
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12-19-2020, 08:13 AM
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Join Date: Jun 2001
Location: Kent. UK. 944s2--'89
Posts: 379
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Thanks, its looking more like possible engine mounts.
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944s2 Last edited by hoover; 12-19-2020 at 08:29 AM.. Reason: Addition |
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12-19-2020, 08:29 AM
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Kessel run in 12 parsecs!
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Engine mounts, balance shafts, Rubber center clutch puck etc. The car is a German marvel, but a headache to meer mortals..
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Getting old sucks, bring back the good old days, this new stuff is for the birds.. |
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12-19-2020, 05:26 PM
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Join Date: May 2008
Posts: 1,707
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Go to either the Haynes manual or Clark's garage to get the measurement specs for motor mounts, and compare to yours to vet out possible age-related compression. Very easy to check.
If the mounts are bad, do replace them. If you can afford the Porsche mounts - by all means get them! |
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12-19-2020, 05:51 PM
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Join Date: Jun 2001
Location: Kent. UK. 944s2--'89
Posts: 379
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Yes thanks I’ve been looking at Clark’s for info, trying to get my head around the need to have two different bolt lengths to choose from.,
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944s2 Last edited by hoover; 12-20-2020 at 01:58 AM.. Reason: Addition |
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12-20-2020, 01:58 AM
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Vintage Ride.
