Packard Forum Index » Pre-War (1899-1942)

Thought you had to adjust the valves hot and running?

Good video about sold lifter on you tube by Ross Miller

youtube.com/watch?v=L79ntnnzFHk

Quote:

You do have to adjust them hot and running but, of course, a cold rough adjustment must be done first if they’ve been reground.

Groucho,

Remember, a wise auld mechanic's move was to set your valves a trace loose, .007/.009 intake, .010/.012 exhaust using a go/no go gauge. Going strictly by the book swell when there was a Packard dealer service department in every good-sized town, or general garages staffed by fellows who adjusted dead lifters day in, day out, and Packard sold silence.

But a trace of valve sound preferable to a burnt valve.

This done on my '40 120 and that car danced.

-- George Fenneman

Instead of setting the valves with the engine running I did it differently. First I warmed up the engine to operating temp. Then with the engine off adjusted the valves on no. 1 cylinder. Restarted the engine to run for a couple of more minutes and adjusted no. 2. cylinder. Rinse and repeat until all are adjusted. This way the valves are adjusted when the engine is warm, but much easier with it not running. Worked for me.

I used the same process JWL, worked fine for my 115c.