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Adjustable timing chain

Old Apr 13, 2007 | 05:34 PM
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Default Adjustable timing chain

How the hell do these work, everyone says they are "easy" to adjust but I dont see how without removing the timing chain cover and removing the balancer, someone please explain!
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Old Apr 13, 2007 | 05:43 PM
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Well it is very easy once you have the front cover off. Also there is a 2 piece cover out that only requires you to take the water pump off to get to the cam. That makes accessing the cam way easier since the crank pulley can stay on.

As for the adjustable cam sprokets, my Cloyes has a little hex bushing in it that you turn to the next tick mark to add another 2 degrees. All you have to do is loosen the 3 cam sproket bolts a little bit and then turn the hex bushing.
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Old Apr 13, 2007 | 06:18 PM
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so you do have to go through a bunch of trouble to adjust the timing
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Old Apr 13, 2007 | 06:27 PM
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Originally Posted by LS1C5Vette
so you do have to go through a bunch of trouble to adjust the timing
No, like i said above all you do is turn the little hex bushing to advance or retard the timing, each tick mark is 2 degrees.
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Old Apr 13, 2007 | 07:06 PM
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This is a one-time setup at installation when degreeing the cam in.

You seem to be asking how hard it is to adjust with an assembled engine...you don't do that. You set it up at installation to arrive at your desired valve event points and forget about it.

This is not a "dial-for-power" item to experiment with.

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Old Apr 13, 2007 | 07:18 PM
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Originally Posted by Thimble
This is a one-time setup at installation when degreeing the cam in.

You seem to be asking how hard it is to adjust with an assembled engine...you don't do that. You set it up at installation to arrive at your desired valve event points and forget about it.

This is not a "dial-for-power" item to experiment with.

Yeah it is done at assembly, but you can tweak it whenever you want to adjust the powerband. You can do this with an assembled engine too.
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Old Apr 13, 2007 | 08:41 PM
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Originally Posted by Thimble
This is a one-time setup at installation when degreeing the cam in.

You seem to be asking how hard it is to adjust with an assembled engine...you don't do that. You set it up at installation to arrive at your desired valve event points and forget about it.

This is not a "dial-for-power" item to experiment with.

Correct. Cloyes Hex A Just billet dbl roller timing setup is the way to go. It's very easy to degree in your cam to your desired ICL, ie intake centerline.
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Old Apr 13, 2007 | 11:32 PM
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so you can adjust cam timing WITH the engine FULLY assembled and WITHOUT taking the water pump off or anything like that??
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Old Apr 14, 2007 | 12:03 AM
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Originally Posted by LS1C5Vette
so you can adjust cam timing WITH the engine FULLY assembled and WITHOUT taking the water pump off or anything like that??
No with a 2 piece timing cover all you have to take off is the water pump. With the stock cover you have to take the waterpump and crank pulley off too.
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Old Apr 14, 2007 | 08:47 AM
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Originally Posted by LS1C5Vette
so you can adjust cam timing WITH the engine FULLY assembled and WITHOUT taking the water pump off or anything like that??
There is no reason to adjust your timing chain unless you are degreeing in a camshaft and then your going to be taking valve covers off, radiator and AC condenser out to gain access to read a degree wheel than mounts on your crank snout. You can't simply turn the the hex bushing to advance or retard the cam, it has has to be done in conjunction with a degree wheel and dial indicator.
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Old Apr 14, 2007 | 01:14 PM
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Originally Posted by Ryan02SS
There is no reason to adjust your timing chain unless you are degreeing in a camshaft and then your going to be taking valve covers off, radiator and AC condenser out to gain access to read a degree wheel than mounts on your crank snout. You can't simply turn the the hex bushing to advance or retard the cam, it has has to be done in conjunction with a degree wheel and dial indicator.
True but you can just change it without using a degree wheel. Like if you use a degree wheel on the first install then later on decide to advance 2 degrees it is very simple. Now using the degree wheel is always the prefered thing to do but is not a requirement.
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Old Apr 14, 2007 | 01:21 PM
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Can a Cloyes be used w/ elec. water pumps or do they sell a different chain for use with an ewp?
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