Cam shaft bushings

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.
 
Last edited:
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.
 
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.
 
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.
 

Attachments

  • DSCN4427.jpg
    DSCN4427.jpg
    72.2 KB · Views: 103
John Stone said:
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.
Click to expand...

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 ?
 
hardtimes said:
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 ?
Click to expand...

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. :)
 
BRENT in 10-uh-C said:
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.
Click to expand...

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.
 
John Stone said:
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. :)
Click to expand...

Hey John,
'Lucky locals' !
Good on you for helping your buddies :) !
 
You must log in or register to reply here.
Back
Top