At 10:24 pm 2/9/97 -0500, Tyson Sherman wrote:
>Hi folks. My 76 MGB decided to start dieselling (sp?)
>again today. It hasn't done so since April, but in the
>past month it has done so 2.5 times.
>The anti-run on valve clicks like it's supposed to. So,
>what usually causes this? It's partially de-smogged
>but all of the vacuum and related hoses to the charcoal
>canister are properly clamped. So, what usually causes
>this annoying thing?
>Thanks,
>Tyson
>
If your idling speed is above 750rpm then that is a likely cause. The
problem is caused from hot spots in the combustion chamber igniting any
fuel around. If the idling is set high there is enough fuel/air able to be
sucked in to those hot spots to keep the engine running.
Hope this helps.
regards,
Graham
97 MGF
Graham McCann Rivett, ACT. Australia
gmccann@pcug.org.au
Phone/Fax: +61 2 62889055
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