Cam shaft bushings

[chiliman]

Any information on were to get can shaft bushings for A the block is wore out thanks

[RawhideKid]

Hey Chiliman, normally your machinist will have a source for those bushings. After all, he IS the one that will be align boring that to insert them.

[Bob C]

Bill Stipe makes cams with oversize journals.

Bob

[Mikeinnj]

http://www.schwalms.com

Schwalms Babbited Bearings In Pensylvania will install bronze bushings and align bore them to size. Cam Bearings Installation - $495.00

[Chuck Sea/Tac]

Pre hydrolic pinto bearings . Two in the center, eyebrowed for the oil and distributor gear.
The hardest part is finding a shop to align bore the cam line, which must be done regardless which way you go. Oversized new cam, or standard journals.

[hardtimes]

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Originally Posted by chiliman

Any information on were to get can shaft bushings for A the block is wore out thanks

Donovan aluminum blocks have to have bronze cam bushings. They use/used chev bushings.

[BRENT in 10-uh-C]

Bill (-and his boys) make a great camshaft however the issue is that rarely is the cam bores cylindrical when worn. Either way the bores really will need to be bored back on centerline.

Unfortunately, not all machine shops can do it. I have done it with my Tobin Arp machine but I am not sure if a Kwik-Way LBM can do it, --or at least do it accurately. Maybe someone who has a K/W LBM that has done it can tell of their experiences.

[John Stone]

Here's a picture of my LBM setup to do cam bearings. Used centering cones and then did a lot of measuring to make sure the centerlines were accurate.

[hardtimes]

Originally Posted by John Stone

Here's a picture of my LBM setup to do cam bearings. Used centering cones and then did a lot of measuring to make sure the centerlines were accurate.

Hey John,
For future reference, do you provide this type service for others ?
And, if so, do you need stripped down A/B block ?
Do you charge the $450+/- mentioned above for this work ?

[John Stone]

Originally Posted by hardtimes

Hey John,
For future reference, do you provide this type service for others ?
And, if so, do you need stripped down A/B block ?
Do you charge the $450+/- mentioned above for this work ?

I really don't have facilities for shipping and receiving blocks. Do things for locals and guys that can bring stuff to me. Just do it as a hobby to keep me out of the bars in retirement.

[Synchro909]

Originally Posted by BRENT in 10-uh-C

Bill (-and his boys) make a great camshaft however the issue is that rarely is the cam bores cylindrical when worn. Either way the bores really will need to be bored back on centerline.

Unfortunately, not all machine shops can do it. I have done it with my Tobin Arp machine but I am not sure if a Kwik-Way LBM can do it, --or at least do it accurately. Maybe someone who has a K/W LBM that has done it can tell of their experiences.

VERY VERY true if you want the timing gears to mesh properly. A friend of mine had someone bore the camshaft tunnel and fit bushes only to find that they were 0.009" off. I was there when he made eccentric bushes to compensate. The workshop's inaccuracy cost him a lot of work and the chance to take part in the National Rally but all good now.
Any GOOD workshop should be able to pickup the centreline and bore them properly. Making and fitting the bushes is not so difficult after that.

[hardtimes]

Originally Posted by John Stone

I really don't have facilities for shipping and receiving blocks. Do things for locals and guys that can bring stuff to me. Just do it as a hobby to keep me out of the bars in retirement.

Hey John,
'Lucky locals' !
Good on you for helping your buddies !