Does this crank sprocket look OK?
Thread Starter
Senior Member since 1492
Joined: Aug 2000
Posts: 87,942
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From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Does this crank sprocket look OK?
It's a new Dyna Gear HD for a 454. I'm not an expert, but shouldn't it be nice & shiney like the cam wheel? The guy at the store said that's how it's "heat treated"? :confused: The one I removed looks better than this! :D
Race Director
Joined: Dec 1999
Posts: 19,610
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From: Forked River NJ
Re: Does this crank sprocket look OK? (Simon Alexander)
I have seen a lot of heat treated steel. It comes out of the furnace looking like this after it has cooled down. You won't be able to see it once it is in the engine. As long as the teeth are good I would say it is in good shape. Sometimes people glass bead them to look nice. Just cosmetics
[Modified by Gordonm, 11:16 AM 1/12/2003]
[Modified by Gordonm, 11:16 AM 1/12/2003]
Le Mans Master
Joined: Aug 2000
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From: Semper ubi, sub ubi
Cruise-In VI Veteran
Cruise-In VII Veteran
Re: Does this crank sprocket look OK? (1970 Stingray)
It looks like it has been case hardened to me, it should be fine..... (pause while I run down to the garage....) I just went and looked at a new Dana timing set I have and it looks very much like yours. So I'd guess it's the way it's supposed to look.
Thread Starter
Senior Member since 1492
Joined: Aug 2000
Posts: 87,942
Likes: 156
From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Re: Does this crank sprocket look OK? (76 Red)
Thanks for the input guys. I should be ok then. The cam sprocket does appear cast but is actually much sturdier than the stock one.
Le Mans Master
Joined: Aug 2001
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From: Standing still with all my might Texas
Cruise-In X Veteran
St. Jude Donor '09-'11
Re: Does this crank sprocket look OK? (1970 Stingray)
Take a look at this: http://www.scaleaero.com/heating_metal.htm
It is not specific to engine parts but it is actually a fairly good "laymans" explanation of heat treating steel. :yesnod:
It is not specific to engine parts but it is actually a fairly good "laymans" explanation of heat treating steel. :yesnod:
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Le Mans Master
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From: Brazos TX
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Re: Does this crank sprocket look OK? (1970 Stingray)
They all look like that, at least the aftermarket ones do. Yes it is heat treating. Nothing to worry about.
