[Verdoro 68]

Put the 236/242 cam in the block last night. Spins nicely and free. The Sims cam retainer and timing set is really nice with very explicit instructions.

The timing chain sprockets on the other hand are too tight. The crank in particular won't go on at all. I'm assuming they need to be honed for an easier slip fit. What's the best way to do that? Could I use a brake cylinder hone?

[HWYSTR455]

Originally Posted by Verdoro 68

.....The timing chain sprockets on the other hand are too tight. The crank in particular won't go on at all. I'm assuming they need to be honed for an easier slip fit. What's the best way to do that? Could I use a brake cylinder hone?

Hm. Well, you can hit the gears with some emery/wet sandpaper to make sure there's no edges/flash. Can do the same on the end of the crank snout too. Can clean after with WD-40.

And the cam one goes on fine? I know sometimes the crank snout on aftermarket cranks are at-spec, and little to no room for gears/balancer in some cases.

I would still only hit the inside of the gears, and only sand the crank snout at the end where the transition areas are. Check balancer fit too.

Keep checking fit of gears wo the chain, and get a 'feel' for the fit. If it still just isn't going to go, you could use a brake hone, but would be wary of doing too much.



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[HWYSTR455]

Test fitting the gears helps seat the keys too.

Even the slightest debris on the parts can make them hard to install, and I usually install dry. Lube can make it more difficult to install as well.

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[HWYSTR455]

I also doctor the keys, so the one end is a little pointed and narrowed, to allow for slight variations of alignment.


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