Intermittent sticking valve

[Mark's 37]

Originally Posted by GOSFAST

Hi Mark, can't help locating the "offender", but I can give you this: when we come across anyone in the beginning or the middle of a fresh build we tell them to install bronze-lined guides. I can all but guarantee you'll NEVER experience any "hung" valves anymore!

Thanks, Gary in N.Y.

P.S. Whether or not this is your issue the lined guides are really a must-have in the build regardless! We're literally still doing hundreds every year and have been for a very long time now, stainless valves and the bronze guides, never look back!

Thanks Gary,

This engine was machined and left unassembled by Don Canepa in Watsonville, Ca. years ago after he passed away. The guides (black) were from Mac's as I remember when I put it all together. Can I change the guides to yours using the existing valves?

Mark