No, sounds like I'm sucking air at cylinders 2 and 5 AGAIN. We've been down this path before. That's why I sealed in bed of silicone last time I had intake off. Am not real impressed with these neoprene or whatever O rings. Don't think they can handle the heat. This time will buy a set of industrial teflon. FWIW, am wondering if acetone in carb cleaner melted silicone as I tested leaks. Cylinders 2 and 5 were air tight last fall. With all due respects to your wonderful European buzzy engine designers, would it have killed them to use a few more bolts to hold intake down? Ford saw fit to use no fewer than 10. And here's a stroke of genius -- they ran them whole length of heads, not just in the corners! IMHO are just asking for trouble bolting an aluminum manifold this way. Am guesstimating my intake is slightly warped. Will put a straight edge on it tomorrow. THIS is why I like my 460's. Takes a little while to de-emission them and rip all that vacuum crap off, but once you're done, you're done. An oil change here or there, AND THAT'S IT. Period. Am not opposed to replacing CPR, but need Darren to look up Renault output pressure vs units DeLo vendors are selling. No sense buying the wrong one. As if I don't have 1001 OTHER things to do... Bill Robertson #5939 >--- In DMCForum@xxxxxxxxxxxxxxx, Martin Gutkowski <webmaster@xxxx> wrote: > Sounds like your CPR might be duff and definitely well past the time > when you should have bought a gas analyser. > > Martin > > content22207 wrote: > > >Just popped out a couple of spark plugs. Ash white. Am definitely > >running too lean (set fuel mixture the way Volvo boys do, but > >apparently wasn't quite right). > > > >All the pieces fall into place: > >-Lower performance after CPR warms up (my ONLY onboard device > >affecting fuel mixture, don't forget) > >-pre-ignition in 100 degree sunshine > >-HOT engine (ask anyone who races cars: "fuel cools") > > > >May have been chasing vacuum leaks when I should have been twiddling > >mixture screw. Will road test & adjust after lunch. > > > > > > Yahoo! Groups Sponsor ADVERTISEMENT <http://rd.yahoo.com/M=244522.3707890.4968055.1261774/D=egroupweb/S=170512 6215:HM/A=1595055/R=0/SIG=124j83ehr/*http://ashnin.com/clk/muryutaitakenat togyo?YH=3707890&yhad=1595055> Click Here! <http://us.adserver.yahoo.com/l?M=244522.3707890.4968055.1261774/D=egroupm ail/S=:HM/A=1595055/rand=378427755> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> .
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