Dumbo The Flying Elephant

[Larry Hill]

Wow did it feel good to be working on Dumbo. After a season and a half under the hood is just very dirty and dusty. Removing the engine is a must to get clean.

[Larry Hill]

I may have found an occasional miss fire, engine coolant in the spark plug well. I think Dumbo will be quicker hitting on all 16 plugs.

[Larry Hill]

All plugs a little bit oily but not real bad. It so much easier to check valve lash with the engine out

[Rick J]

Originally Posted by Larry Hill

I finally got the stuff made and was able to figure installed height. The kool part is I was instructed to get several different sets of valve locks. The standard, the +.050, the -.050, and the top lock. It moves the installed height around and with the help of shims I will be able to get to my coil bind target number on each spring. I’m hoping to get to size to plus .005” on installation height.

A tip of the Hat to all of the cylinder head folks, it’s not easy just to get the installed height correct, past Tech, and run hard all the way to the Finnish line. The real good cylinder head people are a bargain.

FYI, avoid +.050 locks if you can, if not use 10° locks & retainers.
Reason is locks only clamp on the valve stem below the groove, the ID of the lock is larger above the groove.