I have had a vacuum Dashpot (On the distributor) with a tear in it and it would run but pop when the RPM were raised and the vacuum raised. Disconnect it and plug the Vacuum line and test it out.
mike --- John Nasta <[EMAIL PROTECTED]> wrote: > Yes. It pops when there is detonation while a valve > is open. That�s a timing > issue. > > Is the vacuum advance working? Has the cam ever been > degreed? > > I assume we have not ruled out the distributor being > in wrong or the timing > being set wrong due to a slipped damper. > > John Nasta > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > Behalf Of Mark Wilkinson > Sent: Tuesday, July 13, 2004 2:42 PM > To: The Chevelle Mailing List > Subject: Re: [Chevelle-list] Chevelle Hell > > If it was a timing issue would it start and idle > fine, only to pop under a > load? > ----- Original Message ----- > From: Wayne <mailto:[EMAIL PROTECTED]> > To: The Chevelle Mailing List > <mailto:[EMAIL PROTECTED]> > Sent: Tuesday, July 13, 2004 6:06 AM > Subject: Re: [Chevelle-list] Chevelle Hell > > One Tooth Off... Yes that would advance or retard > your timing but unless the > dist can has interference with something. You still > should be able to > set the timing correct... If it's POPPING and your > timing is set right.( > timing light off #1 plug and flashing on your > timing mark on the > damper/tab). > .. I would first start looking over my firing order > making sure there > right... > out he 180 degree thing still my come into play here > also..Because the > timing marks line up but your 180deg 'OUT > A sure way to check that is pull the valve cover > ,watch your #1 > exhaust rocker depress and then your intake rocker > depress, while you turn > the crank by hand clock wise ,your now completing > the compression stroke and > as the mark on the damper hits the timing tab,. Your > Now @ Top Dead > Center. and can set your Dist from this point.. > GL > Wayne > ----- Original Message ----- > From: Eddie Bumgarner > <mailto:[EMAIL PROTECTED]> > To: Mark Wilkinson > <mailto:[EMAIL PROTECTED]> ; The Chevelle > Mailing List <mailto:[EMAIL PROTECTED]> > Sent: Monday, July 12, 2004 9:50 PM > Subject: Re: [Chevelle-list] Chevelle Hell > > sounds like it might be one tooth off of the dist. > > Mark Wilkinson < [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > wrote: > Help! I had an HEI put in my 65 by Shade Tree Inc. > at first it had one Pop > through the carb, then another, then it got so bad I > can not drive it and > had it towed. If I cover the secondary with my hand > (risking fire) and > through it wide open it will not back fire. I pulled > the manifold and > replaced the new gaskets, and the carb gaskets. I > guess I will put the old > point distributor in next, what the Chevelle Hell is > going on with my Baby? > Who out there has gone through this, and what did > you do? Mahalo from Maui, > Mark > _____ > > Do you Yahoo!? > Yahoo! Mail > <http://us.rd.yahoo.com/mail_us/taglines/security/*http://promotions.yahoo.c > om/new_mail/static/protection.html> - You care > about security. So do we. > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
