88SubieSnack Posted November 9, 2016 Share Posted November 9, 2016 Hi everyone, A few weeks ago I noticed a noise in my engine. Oil level at the time was normal and dark. I then changed the oil and filter with my normal 10w40. Still has a very audible noise coming from the driver cylinder head. I replaced the distributor assuming a bad bearing because most, if not all of the noise was heard there through my stethoscope. Not the case, so I re-installed the original distributor and am back to square one. Please view my video and if you want, you can jump to minute 3:15. The audio did not turn out that well for the warm up, but sounds better at minute 3:15. Thank you for your help and any input would be helpful. Will Link to comment Share on other sites More sharing options...
skishop69 Posted November 9, 2016 Share Posted November 9, 2016 Hard to tell with your audio and the exhaust leak noise, but I do hear what sounds like a rod knock to me. Definitely not a tick noise. Link to comment Share on other sites More sharing options...
88SubieSnack Posted November 11, 2016 Author Share Posted November 11, 2016 Alright I have an exciting update!! Yesterday I removed the driver side timing cover and found that the driver side timing belt was really loose...about 1-inch of travel up and down. A lot of slack. So today I removed the passenger timing cover and the passenger timing belt had better tension but still a little bit of slack. So now for the exciting part! I reset the tension on both timing belts and fired it up. No more noise and now this little motor purrs better than before! Definitely a relief and piece of mind. Maybe the slack in the driver timing belt was causing free play somewhere inline of the distibutor during idle...don't know for sure. All I know is that my belts are tensioned properly and the noise is gone! There is about 30k on these belts so I think they stretched a bit. Anyways I hope this may help anyone out there with an engine noise, and that I recommend them to check the timing belt tension FIRST! Thank you! Link to comment Share on other sites More sharing options...
Dee2 Posted November 11, 2016 Share Posted November 11, 2016 (edited) Maybe the water pump going out - that would also be a rotational bearing type noise. If you can safely listen to the pump with your stethoscope, it would be worth ruling it out. --Never mind, you posted your update while I was watching the video .. Glad you found it. Edited November 11, 2016 by Dee2 Link to comment Share on other sites More sharing options...
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