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 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/