Started the van up for the first time tonight to rotate it started well but making a knocking noise from what sounds like the head only prominent on idle drove well round the block and left to idle a while few revs etc but noise stays still but only at idle although quitens straight after revs any thoughts? Oil pressure light isn’t on when running. I hope it’s not bottom end as already got enough to do to it
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2.0cu knocking noise rockers??
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- 937carrera
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- Location: N Yorks.
Re: 2.0cu knocking noise rockers??
Probably just a hydraulic tappet that hasn't pumped up properly yet.... tap, tap, tap, tap
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine
Re: 2.0cu knocking noise rockers??
That was my first thought but how long do they take to pressurise?
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- 937carrera
- Registered user
- Posts: 3599
- Joined: 05 Apr 2015, 19:29
- 80-90 Mem No: 16333
- Location: N Yorks.
Re: 2.0cu knocking noise rockers??
Can be up to 20 minutes spirited driving I think...... best do a forum search or wait for someone with the actual experience.
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine
Re: 2.0cu knocking noise rockers??
Ah quite a while, yeah I hope it is something like that as it definitely wasn’t knocking before being stood
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- 80-90 Mem No: 15374
- Location: Stourbridge
Re: 2.0cu knocking noise rockers??
If you haven't adjusted or changed anything, it'll be drain down on one or more of the tappets. Mine had stood for over a year out of the bus, after adjusting the clearances (one was very loose) and an oil change, within 5 minutes it sounded like a like a well oiled sewing machine
1981 LHD 2.0l CU with Twin Solex setup.