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Old 05-04-2004, 10:11 PM
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Cam Gear and Crank Gear Alignment

I have installed my timing chain dot to dot. However the cam gear stick out further than the crank gear. It's like I have a offset of about 1/4", but the chain is on both gears and she lined up straight. Should I pull the crank gear forward to line up exactly with the cam gear?
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Old 05-04-2004, 10:34 PM
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the cam gear is bolted directly to cam, there is a small *** to line it up. this should almost touch the block. i have never taken measurements there, but i would guess less than half of an inch.
the crank gear is pushed, not beaten on, in the proper orientation with the keyway. there are two keys that are installed in the crank. it should line up EXACTLY!


sounds like your cam is not in all of the way.
you should not see any of the cam where it goes into the bearings.
is your distributor still in the motor?
the gears will not mesh if cam is installed with the dist still in.


i hate to ask, but are all of the pieces for that particular motor,?
example, chevy cam for a chevy small block, with a chevy crank and chevy tining gears
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Old 05-04-2004, 10:41 PM
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Yes they are all Chevy Parts, The engine is still on the engine stand. I will try and get a poicture tomorrow to give a better look at the chain. The two keyway are installed, but the outter key is not touching the crank gear. Mybe it too for past its orginal location.
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Old 05-05-2004, 07:04 AM
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The crank gear is should be on past the first (front) key and seat against the ledge on the crank snout. It sounds like the camshaft cup plug in the back of the block is installed too deeply, causing the cam to stick out the front.

tom
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Old 05-05-2004, 07:40 AM
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Old 05-05-2004, 01:22 PM
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I did add a cam lock plate between the cam and timing gear, but that should not have pushed the cam gear that far out.
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Old 05-05-2004, 01:46 PM
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If are using a block that was made for the hydraulic roller cam but are using a flat-tappet solid or hydrauic cam, you can't use the camshaft retaining plate or the timing gears made for the roller cam.
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Old 05-05-2004, 02:09 PM
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I'm using a OEM SBC 400 block non-roller with a CLOYES True Roller Timing Chain Part# CLO-9-3100. The Cam is a Lunati Solid Cam Non-Roller. I guess that might be the problem.. Tom
I was adding the locking plate for a little insurance, I guess I will have to bring that back to Autozone and get that $8.00 back....
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Old 05-05-2004, 02:18 PM
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Cam locking plate? The one that goes on the FRONT of the cam gear to lock the cam bolts with little bend over tabs or the one that has two bolt holes that bolts to the front of the block to hold the cam in (which the 400 block doesn't use)?
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Old 05-05-2004, 02:27 PM
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Can I use the Cloyes Double Roller timing Chain with my OEM 400 block?
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Old 05-05-2004, 02:59 PM
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Yes, you can. You may have to grind some off the top of the boss above the center oil galley plug to prevent the chain from hitting that area.
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Old 05-05-2004, 06:37 PM
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Quote:
Originally posted by machine shop tom
Cam locking plate? The one that goes on the FRONT of the cam gear to lock the cam bolts with little bend over tabs or the one that has two bolt holes that bolts to the front of the block to hold the cam in (which the 400 block doesn't use)?
Ditto!!!
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Old 05-05-2004, 10:23 PM
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yes... yes... keep the cam lock.
8 seems a tad high, but still worth it.
install it (correctly), like the others metioned, and hopefully you will never find out why they make those little guys


you mentioned pics before...
ever take any, i am dying to see it

31
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Old 05-05-2004, 10:32 PM
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I have the one that goes on the FRONT of the cam gear to lock the cam bolts with little bend over tabs. I took it off today, But I had it on wrong
Installed between the cam gear and cam....
Do you think I need to install it correctly or just discard it, since it not a roller block?
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Old 05-05-2004, 10:36 PM
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If you already have it, use it!! Torque the sprocket bolts to the recommended setting and then bend over the tabs. Good insurance.

Mark
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