Solex carburators

[Per Lindgren]

Richard Hoffman wrote:

>
>The valve gap is somewhat hard to set, as the recommended setting is .002"
>and my feeler gauge doesn't go that low.  If that were off, then my
>compression would suffer, wouldn't it?
>
It can suffer, but mostly if the valve gap is too tight. As the valve
stem expands under heat, a too close valve gap may not let the valve
shut properly. Likewise, if the gap is too big, the valve head can, in
extreme cases, actually snap off.

>
>Here's a thought, tell me if I am WAY off.  This car uses a hydraulic cam
>chain tensioner that functions off of engine oil pressure.  If this were
>faulty, the valve timing could be affected, correct?  If the valve timing
>were incorrect, then the intake valve could be open when the spark fired,
>causing the backfire.
>
This sounds reasonable, but I wont say yes or no, as I dont know this
engine too well. But yes, if the chain tensioner doesnt do it's job
properly, the valve timing can be a bit off. How much, I dont know! It
also depends on how close the ignition timing is to where the inlet
valve closes.

PerL
87 Cq