C3 - SB harmonic damper

[Jim Callan]

This is dumb....I'm using a installer tool to install this HD on a 350/270hp and it's at the point where it won't go any further. How much clearance should be between timing cover and HD ? There is about 1/2" of HD hub showing. I'm I "on" all the way or I'm hung up some where ??

Thanks

Jim

[mike cobine]

Re: C3 - SB harmonic damper

An easy way to tell is place a pulley on it and see if the pulley lines up with the others.

If the HD was old, did you check that the inside of the collar was clean and no rust, grease, dirt, etc? This will hold it out.

I looked at a couple without measuring but they looked like roughly a half inch out from the timing cover.

[Jim Callan]

Re: C3 - SB harmonic damper

This is a new rebuild, so other pulleys are not mounted. I wonder if it is "hung" on the timing gear key ? Would it go in that far ? I attached the timing tab and from a "point" there's about 1/4" to edge of HD. Collar was clean, white grease applied to inside and outside.

Thanks

[mike cobine]

Re: C3 - SB harmonic damper

Are you saying there is about 1/4" to the backside of the HD ring? That is a long way out.

I'd pull it back off and examine the keyway since that is about the only thing it will hit until it goes against the gear.

[Jim Callan]

Re: C3 - SB harmonic damper

Mike, that's about 1/4" from a "point" to the front edge of HD. If I measured from crank snout to hd edge (inside hd hub) what would that be ? You are probably right, should pull off and start over.

Thanks