2n cam gear cover

Smokey37 · Apr 26, 2016

Is there a certain tolerance between the large cover in the front, and the the cam gear? If so , how do you measure it? Is it done by gasket thickness? Has any one been there? Thanks, Smokey

Bob · Apr 26, 2016

In general, no one worries about or checks cam endplay on thjose engines or shims the timing cover to compensate, and all is well.

The 9N's and 2N's and early 8N's used a spring thrust washer between the front of the cam and the timing cover. (Key # 15 in the drawing.)

It seems many got lost during OH's over the years and the engines still ran with no ill effects.

Typically, camshafts are ground with a slight taper to the lobes and the action of the valvetrain bearing down on the slightly tapered lobes keeps the cam rearward, plus the "cut" of the helical timing gears is such that the cam gear is forced rearward under load.

<img src = "http://cnh-b2b.ptcmanaged.com/index.php/sbsimage/NH/default/529039.png">

Smokey37 · Apr 26, 2016

Wow, this forum is so great. Folks like you Bob are a special bunch! Thank you sooooo much, for taking the time to help a guy feel better about what he is trying to do. See Ya!! Smokey37

2n cam gear cover

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