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8n camshaft spring or washer

6

67Chevrolet

Member
When putting my engine back together today, I came to the cam
gear and the washer or spring that goes in front of the cam.
Between the cam and the front cover, the ford manual refers to it
as a spring. My engine either didn't have one or it was lost upon
tear down. The manual showed one, so I called the local Ford New
Holland dealership and they said my engine, a 1948 front
distributer engine needed one, so I bought one for it. Today when I
was putting it on it would hold the front cover about 1/16 of an
inch away from the block. I put it in and turned the engine over
about a dozen times and removed it and looked at it and it seemed
not to have worn except one slight scratch around it. My question
is, is this how they are supposed to go? I mean it was holding
pressure against the front cover holding it out until I tightened it
down. Since its referred to as a spring I guess it could supposed to
hold pressure. What have others experienced with this spring or
washer when putting it in?
 
67, did you know that camshafts are typically showed rearward during normal engine rotation by the cut/angle of the helical gears that drive the camshaft? (Of course, if for some reason the engine is rotated backwards, the "cut" of the gears would tend to push the camshaft forwards, and that's likely why the washer/spring thingy you are worried about was a part of the earlier engines.)


Besides that, the lobes of the cam are typically ground at a slight angle that tends to force the cam rearward and also rotate the tappets/cam followers.

I can't speak for the (DEAD) engineers that thought the early "N's" needed the thrust washer/spring dumaphagee thingy for the cam gear to bounce off of during reverse rotation probably caused by a backfire, but your engine will survive just fine with or without it.
 
I guess I have overhauled about 50 N engines in my time and to tell the truth I never saw that cam spring thingy?????

Zane
 
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