Originally Posted by trontek

where th' tang of th' prechamber orients in th' head so's to allow us to get th' glo plug through there. Th' heat shield(that folks are calling a crush washer - & maybe it is but I don't think so) had carbon gumming up about half th' circumference where th' injector seats down into said shield. When th' injectors are tightened down, they are sitting on top of th' hard carbon and fuel leaks thru th' gap and up thru th' threads of th' collar that holds th' prechamber in. I cleaned up some from an '83 and installed them - no more leak.

Noticed th' hole in th' '83 shields was smaller than th' '77 but things seem ok when running. If anyone knows any reason not to leave them in there - holler back....

Glow plugs work a whole lot better if you hook th' resistors up correctly! If you hook every thing up on th' outside of th' insulators, th' engine will not start....

Jim