<VV> Timing Gears - Cam and Crank Marks

[BBRT]

Stu,

IMHO, generally, you want the cam gear to be advanced rather than retarded. 
By advanced, the cam lobes come up ahead of where they are supposed to be 
slightly, rather than slightly behind where they are supposed to be. If the 
crank (rotates CCW from rear of engine) is at TDC, remembering the cam turns 
the opposite way or CW when you are at rear of engine, then you move the cam 
gear toward the direction of rotation.  REMEMBER  you are looking at "front" 
of engine (bellhousing end) where cam gear and crank gear mesh, so 
everything is reversed.  From this perspective, crank turns CW and cam turns 
CCW. Put the little ° symbol to right of tooth/line rather than to left.

Someone please check my comments.

Chuck S
BBRT
----- Original Message ----- 
From: "Stu Padazzo" <MonzaProject at Comcast.net>
To: "Virtual Vairs" <VirtualVairs at corvair.org>
Sent: Thursday, May 08, 2008 7:58 AM
Subject: <VV> Timing Gears - Cam and Crank Marks


>I have a 1966 Monza 140 with Powerglide; confirmed original motor with 
>original crank. You guys confirmed correct crank for PG last year.
>
> - Stock crank with new Otto 20 cam and Super Cam Gear.
>
> Following the Service Manual putting the case together I've run into this 
> problem:
>
> - The timing mark on the crank gear is DIRECTLY on one of it's teeth
> - The timing mark on the cam gear is DIRECTLY on one of it's teeth
>
> Therefore, you CAN NOT "line" the marks up!  They are either one tooth 
> right of each other or one tool left of each other...
>
> I called Clark's and they said, "As long as you can see the cam mark 
> through the hole in the crank you're fine"... well, you can see the cam 
> mark through the hole either way, right of the mark OR left of the mark on 
> the crank. But you can't line them up?
>
> The Service Manual shows a "perfect world" where the bolt holes in the 
> crank are straight up and down and the woodruf key in the crank points 
> left and the cam woodruf key points straight down. ON mine they are 
> "close" either way but never "perfectly lined" no matter what side you put 
> it on. I DON'T want to get this wrong.
>
> What's the correct method for this set up?
>
> Chris
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