Re: B-engine poor running - Saab Saab Model 99 Bulletin Board - Saabnet.com
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Re: B-engine poor running
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Posted by SebCH [Email] (more from SebCH) on Tue, 19 Mar 2024 07:07:45 Share Post by Email
In Reply to: Re: B-engine poor running, Gary Stottler [Profile/Gallery] , Mon, 18 Mar 2024 12:59:30
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I've looked what I could find about ethanol and valve recession on the web and apparently the only sources that make a link between the two are the sellers of fuel additivel but there is no real evidence to back their claims... The usual commercial blah, I guess!

I guess it won't hurt to add additive for other potential benefits, but I'll be monitoring valve clearances closely. My understanding was that all Saab engines had unleaded fuel-resistant seats installed from 1975 at least when lead was outlawed in the US. I would be surprised if they had different versions for european markets like mine so I think my engine should already be lead-free capable...

Next time I have to pull the head, I'll be starting fresh from a better core - mine has a million km on it and from what I see it's been worked on before. Not sure about the valve seats, tho.

posted by 87.67.20...

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