Crank pulley milled for double timing chain?
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Crank pulley milled for double timing chain?
I recently installed a double roller timing chain from SDPC and I re-used the stock crank pulley - no problems for several months now.
I heard that if you replace the stock crank pulley with a smaller after-market unit that you must mill the new pulley if you are using a double roller chain.
Is this true; are there any small pulleys that do not require milling; my car is a 99 F-body and not a Vette....
Thanks...
I heard that if you replace the stock crank pulley with a smaller after-market unit that you must mill the new pulley if you are using a double roller chain.
Is this true; are there any small pulleys that do not require milling; my car is a 99 F-body and not a Vette....
Thanks...
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....sorry for the confusion; not sure from your post wheather SDPC sells the ASP pulley or just the double roller; I will check their web page for the pulley - Thanks...
#5
I also have an ASP pulley (got it from a sponsor, Thunder I believe) and a Rollmaster double roller (got it from SDPC), no issues at all andthe ASP pulley didn't need machining prior to installation.
My water pump is a Mezeire(street version), my voltage and power steering dropped minimally. The only thing I notice a drag on with the pulley is the power windows - kinda slow.
My water pump is a Mezeire(street version), my voltage and power steering dropped minimally. The only thing I notice a drag on with the pulley is the power windows - kinda slow.
#7
Well, I have a 1998 F-Body with the ASP pulley and the double roller timing chain, and I DID have to mill 3mm off of the pulley. With out the milling, the pulley would lock tight inside the oil pump housing and not spin. Although, recently I have heard that all the latest pulleys come already machined to fit the double roller, so the problem maybe becoming extinct.
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Mine also hit, and so did my two buddies, we all have F-bodies so it's not just primarily Y-bodies with the issue. I still don't understand how other peoples don't hit, tolerences can't be off that much
Dan
Dan
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I have the ASP pulley and double chain (on my F-body). I drove around for 20K miles without noticing any problems. When I removed the timing cover to replace the front seal, I noticed that the pulley had been slightly rubbing on the oil pump. It was just some slight nicks here and there but I went back and turned the pulley to make sure I never touch again.
just do it...its cheap insurance
just do it...its cheap insurance
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Originally Posted by 2001CamaroGuy
I have the ASP pulley and double chain (on my F-body). I drove around for 20K miles without noticing any problems. When I removed the timing cover to replace the front seal, I noticed that the pulley had been slightly rubbing on the oil pump. It was just some slight nicks here and there but I went back and turned the pulley to make sure I never touch again.
just do it...its cheap insurance
just do it...its cheap insurance
Dan