[MLS]

Trying to install my timing set but the cam gear lacks about .030 more slack in the chain in order to slip over the cam snout. This is the set that was on the engine when I tore it down (very low miles). The only difference is the cam (removed a Cam Dynamics and installed a Nunzi). Cam gear does fit the cam without the chain. This is a Rolon brand double roller chain and gear set. Has anyone ever encountered this? I've built a few engines but have never seen this.

[ March 25, 2002: Message edited by: MLS ]</p>

[MLS]

Trying to install my timing set but the cam gear lacks about .030 more slack in the chain in order to slip over the cam snout. This is the set that was on the engine when I tore it down (very low miles). The only difference is the cam (removed a Cam Dynamics and installed a Nunzi). Cam gear does fit the cam without the chain. This is a Rolon brand double roller chain and gear set. Has anyone ever encountered this? I've built a few engines but have never seen this.

[ March 25, 2002: Message edited by: MLS ]</p>

[Gooatee]

I know you said you have built a couple of motors but, I thought I might ask that you are lining up the depth of the gears so it will slip on? I had this problem once and just a little difference in the depth of the crank gear seemed to make it not want to start on the cam! Sorry if I make it sound as if I think you don't know what you are doing, not meant that way at all!

[BAB]

Make sure the cam is all the way forward and against the retainer. Sometimes the cam gets pushed in to far when pushing the sprocket on. 1/4" travel in the cam may give you what you need to start the cam sprocket vs the crank sprocket evenly. (They must be perpendicular)

[Mr-Bratt]

If it's the chain (new?) that is too tight try this little trick. Heat it in the oven at about 375-400 for about 20 or 30 mins then (with gloves )install It will heat up and expand a little giving you a little slack (not very much) to work with. Mr-B

[Half-Inch Stud]

BAB got it right.

To highlight a quality fear; I suspect that if you rotate the cam/gear 180degree and the chain fits easily then the cam gear concentricity may be of concern. Who would ever look for thaat..

Have a nice day.

H.I. Stud

[wholio]

Pull the crank gear out so the cam and crank gears are in line. With the chain on the gears put the cam gear on the cam and together slide the cam the rest of the way into the block at the same time slide the crank gear back on the crank snout until both the cam and the crank gear are in the correct location.
Good luck Julian

[Lee]

is it a double roller chain, with two silver links and the rest of them a brownish color? I've seen a few of these now, all of which are just blatantly TOO tight.

If it doesn't feel right, then there is a reason!! Stop, and get a different chain.

Lee