Originally Posted by mustangsavage67
Well right now I have a Ford 302. It has been cleaned up and put back together. It has a new sealed pro cam, edelbrock rpm heads and manifold. An MSD ignition 6A and Dist. I run a Holley 670 CFM carb on it. It has almost 100 miles on it but i have to current problems.
First problem is its ticking and i have adjusted the lifters twice. I got a stethoscope to pin point the location and its hard to really narrow it down. I know its not the exhaust because the bolts are tight and i see no blow by indicating a leak. Plus the gaskets are new. Im using Scorpion Rockers and i followed the directions. They are hydraulic lifters by the way. Any ideas?
Second Problem is it misses. The timing im sure is up to about 10. I took it to an old mustang guy who tunes these things by ear. He didnt a good job because it runs better then it did but i did notice when i pulled the spark plugs out again to mess with the lifters they were a little white on some of them (the tips). Someone from holley said timing should be 10 to 14 but that sounds like way to much timing to me. Cant that hurt the car? Any help would be appreciated. Thanks for your time and Happy Holidays!
Exactly which 302 is this, they sometimes vary a lot year to year as to what's in them. Are the rockers adjustable or the type that screws down to a stop?
What did you do to break-in the cam. These days you have to use the proper break-in lube at the proper RPMs for the proper amount of time or the cam and lifters are quickly toast?
Initial timing ties into to total timing, too much initial will give too much total, you'll hear from the engine if it doesn't like it. Still, unless this is a real high strung, high compression engine, a little detonation probably won't harm anything if its over a very short period of time, but if you keep it that mode for a while something will come apart.
I don't know about the plugs, if most of the insulator is getting dirty and only the tip around the end by the wire is white, then it's pretty normal. If the whole insulator is stark white perhaps with silver blotches, then there's other problems from too hot a plug, to lean carburation, to excessive ignition advance, to a miss-timed camshaft.