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Search: Posts Made By: Waiex191
Forum: S-Series General 05-20-2022, 11:06 PM
Replies: 23
Views: 910
Posted By Waiex191
Re: Sudden onset of engine clacking/knocking noise while driving uphill

With a bad lifter you could have pounded the valve and compromised the valve guide. Maybe the valve also. Have you been able to do a compression test?
Forum: S-Series General 05-18-2022, 05:52 PM
Replies: 23
Views: 910
Posted By Waiex191
Forum: S-Series General 05-17-2022, 08:13 PM
Replies: 23
Views: 910
Posted By Waiex191
Re: Sudden onset of engine clacking/knocking noise while driving uphill

... which brings us to a good test. Rev it with the clutch pushed in. That pushes the crank against the thrust bearing.
Forum: S-Series General 05-17-2022, 06:11 PM
Replies: 23
Views: 910
Posted By Waiex191
Re: Sudden onset of engine clacking/knocking noise while driving uphill

Look for funny wear on the cams. If that whacking is from a collapsed lifter it could leave a witness mark.
Forum: S-Series General 05-17-2022, 07:20 AM
Replies: 23
Views: 910
Posted By Waiex191
Re: Sudden onset of engine clacking/knocking noise while driving uphill

I think it's possible. Maybe there is a metronome app or something, you can set it to one beat per rev at 900 RPM and then one beat every other at 900 RPM. Listen and compare. That is a low tech...
Forum: S-Series General 05-16-2022, 11:03 PM
Replies: 23
Views: 910
Posted By Waiex191
Re: Sudden onset of engine clacking/knocking noise while driving uphill

Hard to diagnose via YouTube. Any chance a lifter is bad? Is the noise once per rev or every other?
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