Re: [T3] Is there a sidedraft expert in the house?

[Ben Doughney <ben_d@clear.net.nz>]

on 26/5/2003 6:00 AM, Shad Laws at shad@lnengineering.com wrote:

> Before you continue to pull your hair out, at *least* do a poor-man's
> compression check.  Disconnect the points lead from the coil and turn the
> engine over with the starter, paying careful attention to the four pulses
> you hear.  If all four pulses are the same length, then compression
> *probably* isn't the cause of the major backfiring.  If you hear one or more
> fast pulses, you found your culprit.  You have a major compression leak, and
> no amount of igntion and carburetor tuning will help.

OK, I will give that a try.

> If this is the case, the first thing to do is double-check your valve
> adjustment.  If you have a valve that's too tight, it will cause the
> compression leak (obviously, since the valve isn't closed :-).  If this
> doesn't help, then do a complete compression check, find the culprit
> cylinder, and rip out the engine.

I will recheck those as well, perhaps the valves are settling themselves in
after not being driven much. I can hope can't I? ;-)

Thanks,
Ben Doughney

'75 1200L
'63 1200 - Ringo
'71 1600TL
'65 1500N - Val

http://members.tripod.com/~superkafer/ 

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