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Title: Valve clearances Post by: FERGTS246 on 07 June, 2023, 11:21:11 AM Hi, I recently re-set my valve clearances. They were set at about 0.10 intake, 0.15 exhaust so I adjusted them to figures in the handbook 0.15 intake, 0.25 exhaust. They are now a bit noisy, whereas they weren't before.
I read sometime ago that the tappets are a bit noisy when set to correct gaps - does anyone agree with this? What is the main problem with having clearances a bit tighter than the official spec? Thanks Chris Title: Re: Valve clearances Post by: lancialulu on 07 June, 2023, 12:21:30 PM Are they noisy after a 100 mile blast?
Title: Re: Valve clearances Post by: GG on 07 June, 2023, 01:02:18 PM There is noisy, and then there is slightly noisy. It should sound like a nice sewing machine - if you don't hear anything, they are too tight. If it sounds disruptive, too loose. And yes, a bit quieter after a good warmup as noted above.
Title: Re: Valve clearances Post by: Richard Fridd on 07 June, 2023, 02:37:20 PM To answer the question of too tight. Valves not seating fully. Too loose would affect valve timing slightly. Checked mine today also.
Title: Re: Valve clearances Post by: FERGTS246 on 07 June, 2023, 04:30:47 PM Hi All, thanks for your responses.
I haven't consciously checked after a 100 mile blast but I'm pretty sure I would have noticed if they had quietened down. I would say 'noisy' not 'very noisy'. I'll take for a blast and check the noise. Chris Title: Re: Valve clearances Post by: FERGTS246 on 29 July, 2023, 12:46:18 PM I've bought a SPQR tappet adjuster to reset the tappets. As this tool allows for wear, I expect that the settings I found were probably correct and I've set them too big with just feeler gauges and therefore had not allowed for wear. Chris
Title: Re: Valve clearances Post by: Richard Fridd on 29 July, 2023, 08:23:13 PM How does it work?
Title: Re: Valve clearances Post by: FERGTS246 on 30 July, 2023, 03:38:10 PM Richard, See attached pdf with instructions. Chris
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