302 knocking......Camshaft?

simonjrwinter · #1 (**permalink**) 02-19-2003, 08:54 AM

Since my previous post, I've replaced all the big ends in the engine (only rebuilt 350 miles ago but an oil starvation problem at start-up) and it still knocks. It sounds like a proper "knock coming from the very centre of the engine (ie not the heads). I've ordered a new performer plus cam and followers but before I tear the engine down, how do I make sure thats definately the problem? Someone said to me it could be a stuck lifter, how to I tell or rectify that?
Thanks
Simon

HighPlainsDrifter · #2 (**permalink**) 02-19-2003, 09:16 AM

Simon,
If you have the non adjustable rockers then clearance is the nocking you hear. Had the same trouble on a friends 302. He didn't want to go with screw in studs and adjustable rockers so the fix was to get a new set of factory rockers.
Perry.

rlearp · #3 (**permalink**) 02-19-2003, 09:29 AM

If they are pedestal mount they can be adjusted, it just ain't as easy as stud mounts with adjustable rockers. Shims are available to raise them, and if they need to be cut down as in my case, get a piece of glass and some sandpaper to cut them down. Use the glass as the flat backing and put the sandpaper on it. Worked for me,

Ron