Timing chain problem, Need help ASAP

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Dec 17, 2005 | 12:33 PM

78f250_rls

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From: Lake Havasu, AZ

Timing chain problem, Need help ASAP

I am installing a new Cloyes 9-3621x9 double roller. The cam gear doesn't allow the trust bearing to spin.

What do I need to do?

Thanks

Dec 17, 2005 | 01:42 PM

78f250_rls

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From: Lake Havasu, AZ

my mistake not the trust bearing the fuel pump bearing (or whatever its called).

Dec 17, 2005 | 03:43 PM

Bill_Beyer

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From: PacNW

If you have a single piece fuel pump eccentric it's not supposed to spin. If you have a 2 piece eccentric the outside piece should not spin while the inside piece does. Is it a clearance issue between the inside piece and the cam gear?

Dec 17, 2005 | 10:21 PM

78f250_rls

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From: Lake Havasu, AZ

I have a two piece,the outer piece spins freely, while the inner mounts solid to the gear and cam. Ethier this gear set is for a one piece eccentric, a electric fuel pump of the cam gear was forgot to be ground. The gear has a flat area around the bolt about 3" dia.

Dec 18, 2005 | 11:08 AM

Bill_Beyer

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From: PacNW

By outer I meant the furthest away from the cam gear. I haven't seen a situation where there wasn't sufficient clearance between the inner piece and the outer piece before even with aftermarket gear sets. There's really no magic answer here. I'd make sure the eccentrics were as clean as possible and weren't distorted. Also I'd apply some moly or assembly lube to them before I bolted them on. If there's still not enough clearance then maybe you want to look into getting a single piece eccentric. Remember with the 2 piece it's not essential that the outer piece is very loose. As long as it is able to move a little then you should be fine.

Dec 18, 2005 | 11:44 AM

grclark351

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From: chicago burbs

are you sure about the part number? it should be 3521x9? the outer ring should be able to spin if the inner ring is bolted to a flat surface, there should be clearance for the outer to fit loosely on the inner. if not you may have to get a one piece eccentric.

Dec 18, 2005 | 12:34 PM

78f250_rls

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From: Lake Havasu, AZ

The gear is totally smooth surface which will not allow for any clearance. Late yesterday I took it back and swith to a different type. I believe this one is for a one piece eccentric or a factor mistake.

Thanks for you help.