RE: [DML] Troubles-updated/flames from exhaust

["Joseph Kuchan" <josephkuchan@xxxxxxxxxxx>]

Your vacuum does not sound normal. Vacuum should be steady at a steady idle 
speed. If it was varying because the idle speed was varying, that's okay, 
but if your idle speed was steady and the vacuum was jumping it indicates a 
problem in one or more cylinders. Rather than typing in a long explanation 
of how to diagnose engine problems from vacuum readings, I recommend that 
you read some of the many excellent web pages out there which can help you 
understand what vacuum readings indicate. Search for vacuum engine diagnosis 
and you'll find them.

You might have a misadjusted valve, broken valve spring, or some other 
cylinder-specific issue that needs to be corrected.

-Joe Kuchan


>From: "stainlessilusion" <5n-@xxxxxxx>
>Reply-To: dmcnews@xxxxxxxxxxxxxxx
>To: dmcnews@xxxxxxxxxxxxxxx
>Subject: [DML] Troubles-updated/flames from exhaust
>Date: Tue, 30 Aug 2005 02:23:13 -0000
>
>Yea?flames?but I'll get to that later-I'll start by
>mentioning the
>work I did. I removing the intake to find that the #4 O-ring was
>leaking (oily substance dripping down from the ring), so I cleaned
>all grooves with a Q-tip and rotor cleaner and smeared a light coat
>of hi-temp silicone over the rings. I also did a vacuum test,
>plugging in my gauge left side intake barb. My gauge jumped madly
>between 16~17 and 19 in HG, and stayed like this even while revving






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