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a.k.a. G-man
Join Date: Sep 2003
Posts: 13,614
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Must I use new chainwheels for camshafts?
During a rebuild, is it a must to renew the chain-wheels that drive the camshafts?
I know the chains stretch over time and must be replaced but what about the chain-wheels?? Do they develop a certain wear pattern that is not compatible with a new chain?? Is it safe to re-use them if there is no or little wear on them? And what about the chain-wheels on the intermediate shaft??? I don't think I've read anything about this in Wayne's books. Thanks guys
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Сидеть, ложь, Переворачиваться |
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02-02-2010, 01:54 AM
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G, yes, the gears do wear with the chains. If you are using new chains, it is wise to use new gears as well... Take a look at the teeth, especially towards the tips, they tend to wear thin over time. The saddles break in as well...
Others will have opinions and better explanations as well...
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Make sure to check out my balls in the Pelican Parts Catalog! 917 inspired shift knobs. '84 Targa - Arena Red - AX #104 '07 Toyota Camry Hybrid - Yes, I'm that guy... '01 Toyota Corolla - Urban Camouflage - SOLD |
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02-02-2010, 02:05 AM
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a.k.a. G-man
Join Date: Sep 2003
Posts: 13,614
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Damn Dave, you're costing me money...
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Сидеть, ложь, Переворачиваться |
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02-02-2010, 02:16 AM
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Post pix of the gears... Sharp ones....
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Make sure to check out my balls in the Pelican Parts Catalog! 917 inspired shift knobs. '84 Targa - Arena Red - AX #104 '07 Toyota Camry Hybrid - Yes, I'm that guy... '01 Toyota Corolla - Urban Camouflage - SOLD |
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02-02-2010, 02:23 AM
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beancounter
Join Date: Jan 2008
Location: Weehawken, NJ
Posts: 3,593
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I'm going with all new chain wheels on my build. Better safe than sorry, especially on the bottom end where you don't want to go back in there. Not a lot of money in the grand scheme.
Used a puller to get the old wheels off:  "Naked" intermediate shaft:  intermediate shaft goes into freezer:  new chainwheels heated in oil:  Voila! ready for installation: 
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Jacob Current: 1983 911 GT4 Race Car / 1999 Spec Miata / 2000 MB SL500 / 1998 MB E300TD / 1998 BMW R1100RT / 2016 KTM Duke 690 Past: 2009 997 Turbo Cab / 1979 930 |
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02-02-2010, 09:35 AM
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1984 Porsche Targa 3.2L
