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8.1 496HO cam swapping, factory cam gear-1 pink dot, crank gear-pink dot and divit?

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8.1 496HO cam swapping, factory cam gear-1 pink dot, crank gear-pink dot and divit?

Old 06-21-2011, 08:46 PM
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Default 8.1 496HO cam swapping, factory cam gear-1 pink dot, crank gear-pink dot and divit?

Hello. I have everything apart. I did not line up squat before I took the cam, gear, and chain off. I figured there would be two obvious marks, just like every other cam swap I have done. Well, there are two pink/tan dots that look like nail polish. One on the cam gear, and one on the crank gear. The crank gear also has a divit, and what looks to be like some letter "i" or number "1" in a lil box (or something).

Tips? I am putting a Compcams 270 roller in my 2003 2500 Chevy truck. I am kind of scared to take a wild guess. So my job is at a stand still.

Help a cracker out w/his four wheeled on-shore-land-lubber vessel?

Thanx.
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Old 06-21-2011, 09:42 PM
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jm,
My engine builder software shows two marks, just like any other BB Chevy. Take a closer look ? I will look at some other books at the shop in the AM to seee if there is anything different.

Bill Koustenis
Advanced Automotive Machine
Waldorf Md
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Old 06-21-2011, 09:50 PM
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Originally Posted by BillK
jm,
My engine builder software shows two marks, just like any other BB Chevy. Take a closer look ? I will look at some other books at the shop in the AM to seee if there is anything different.

Bill Koustenis
Advanced Automotive Machine
Waldorf Md
Thanx so much for your time! I am cleaning up the garage until putting other stuff back together until I know.
Thanx!!!!
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Old 06-21-2011, 11:10 PM
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I posted some nice photos right here if anyone familiar has the time. It looks right to me.

I misquoted above,there are two on the cam gear.

Thanx y'all!
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Old 06-21-2011, 11:11 PM
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http://www.dieselplace.com/forum/sho...d.php?t=425505


Duh, I forgot to add the link.
Thanx.
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Old 06-22-2011, 07:50 PM
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JM,
I guess I am not allowed to post images so if you send me a PM or e-mail I can send you the diagram from my information.

Bill Koustenis
Advanced Automotive Machine
Waldorf Md
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Old 06-22-2011, 11:58 PM
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Originally Posted by BillK
JM,
I guess I am not allowed to post images so if you send me a PM or e-mail I can send you the diagram from my information.

Bill Koustenis
Advanced Automotive Machine
Waldorf Md


I will send you a personal message w/my email address.

THANK YOU!!!!!!!!!!
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Old 06-23-2011, 08:52 AM
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jmccart:

Your first picture posted on Diesel Place forum is the correct alignment of the cam gear mark over the crank gear mark.
The timing chain is a little loose in the photo, so I would recommend an aftermarket replacement chain as they tend to be tighter than the factory ones that are intentionally made loose so the robot machine can install them with no pressure. Sorry you did not purchase one of our camshafts for the 8.1L, they are much better producers of power and torque than those Comp Cams pieces.

Best Regards,
Ray @ Raylar
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Old 06-23-2011, 08:47 PM
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Thanx for popping in & looking at the photos Ray. It is running. All seems good.

Thanx!
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Old 06-23-2011, 11:00 PM
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And a big thanx to BillK too. He got photos to mail me.

Thanx guys!!!

Truck runs great!
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