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Title: M750 Whats the valve guide clearance ?? Post by: Von Eisen on May 03, 2016, 11:22:06 PM Hi guys, Ive fitted new colsibro valve guides to my 1997 M750 heads. Now need to take both heads to the engineers to get the guides reamed and the valve seats cut.
My question is ... What should the guide to valve clearance be ?? ... Ive asked the guide supplier for tolerances and got the following, interesting, answer "we prefer to check the clearance by feel they dont want to be tight and they dont want to have sideways movement" ??? ... Think if I tell my engineer that he might laugh. Title: Re: M750 Whats the valve guide clearance ?? Post by: Howie on May 04, 2016, 04:07:01 AM .03 -.06mm.
Title: Re: M750 Whats the valve guide clearance ?? Post by: Von Eisen on May 05, 2016, 06:51:37 AM Thanks howie.
Title: Re: M750 Whats the valve guide clearance ?? Post by: ducpainter on May 05, 2016, 07:53:05 AM Ask your engineer what clearance he'd use if you didn't know. ;)
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