Timeing set question
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Timeing set question
Getting ready to replace the 2bl manifold in my 352, it has I beleve around 40,000 miles sence it was rbt, sence im going to have the intake, and waterpump off I figured I might take a look at the timeing set, as while the engine runs and tow's good it never was a tire burner at all. Im wondering if when the PO rebuilt it he might have used a later model timeing set and that would make it retarded, or advanced or well you know what I mean. what should I look for ? and is a eldabrock 3 slot timeing set a good one to go with?
Thanks
Thanks
FTE Leadership Emeritus
Joined: Jul 2002
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From: Long Island USA
Hey guys, wouldn't the keyway on the crank and cam line up if the timing set is "straight up" as opposed to retarded/advanced?
I would expect with a 352, that you would only have the "correct" timing set in the first place. The only time you get the retarded/advanced (can't remember which) timing set is if you get a 1972-up 360 timing set. But anything's possible.
I would expect with a 352, that you would only have the "correct" timing set in the first place. The only time you get the retarded/advanced (can't remember which) timing set is if you get a 1972-up 360 timing set. But anything's possible.
Senior User
Joined: Feb 2006
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If you want a QUALITY timing set get a Cloyes tru-roller 9-3108 - - expensive. They have a Renold or JWIS chain and a properly made set of sprockets. If you prefer a cheap timing set get anything else - I'd still recommend Cloyes brand because they at least know the difference and make their own sprockets. Most others are just repackagers of sprockets and chains bought in bulk from the lowest bidder.
Lead Driver
Joined: Jan 2003
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From: Ohio
I run plain ol Seal power units in all my stuff. Nothing fancy, though they do come with three keys.
When you get it apart, look at crank gear(remove oil slinger) and look for markings(usually a circle, triangle and square). The circle is straight up timing, the others are advance/retard. If you look very closely at the gear and the markings you'll notice that the keyway for the circle is directly in line with TOOTH from chain. The other markings are OFFSET from the chain tooth slightly(one way or the other for adv/ret). If you look closely, you'll see it.
Depending on what you find(maybe a stock silent chain?) I won't worry too much about it as long as it's tight(and doesn't have nylon upper gear). With a stock cam, 2bbl carb, what for gears?(probably 3.25?) it won't be a race car no matter what chain it has. What kinda dizzy timing was it set at? 8 degr? You'll get a bigger improvement with changing dizzy and advance then anything else.
When you get it apart, look at crank gear(remove oil slinger) and look for markings(usually a circle, triangle and square). The circle is straight up timing, the others are advance/retard. If you look very closely at the gear and the markings you'll notice that the keyway for the circle is directly in line with TOOTH from chain. The other markings are OFFSET from the chain tooth slightly(one way or the other for adv/ret). If you look closely, you'll see it.
Depending on what you find(maybe a stock silent chain?) I won't worry too much about it as long as it's tight(and doesn't have nylon upper gear). With a stock cam, 2bbl carb, what for gears?(probably 3.25?) it won't be a race car no matter what chain it has. What kinda dizzy timing was it set at? 8 degr? You'll get a bigger improvement with changing dizzy and advance then anything else.
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Cam Timing set
When you get it apart, check the timing chain for wear, or stretch, and see if the top sproket is metal. If that is all good, get a dial indicator, and a degree wheel, and check the cam timing.
If you know who manufactured the cam that is in your truck, contact them about where the cam should set, and then you should know if you need to go to the expense of getting a timing set that you can vary the timing on.
If a quality timing set can give you a little more power by improving the efficiency of the engine, if really might not take too long for the higher priced timing set to pay for itself.
A $150.00 dollar timing set is about three full tanks of gas.
If you know who manufactured the cam that is in your truck, contact them about where the cam should set, and then you should know if you need to go to the expense of getting a timing set that you can vary the timing on.
If a quality timing set can give you a little more power by improving the efficiency of the engine, if really might not take too long for the higher priced timing set to pay for itself.
A $150.00 dollar timing set is about three full tanks of gas.
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Joined: Jul 2005
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I'm running coyle's double roller too.
Coyles double roller timing chain 220-9-3108
Check out thread "Who Makes a Good Straight Up Timing Chain Set?"
I've read that some cams are built in with the 4 degree retard too.
Coyles double roller timing chain 220-9-3108
Check out thread "Who Makes a Good Straight Up Timing Chain Set?"
I've read that some cams are built in with the 4 degree retard too.
Last edited by 1975Ford; Jan 10, 2008 at 09:39 AM.
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Thanks for the responce guys, ill take a look and see how loose it is, if it's bad I will use the good parts, I dont like to do things twice.
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