How to remove ignition rod bushings?

[816niner]

Swapping cam ignition rod. Need to remove old bushings and replace with brass. Any tips? Thanks

 

[816niner]

Pics

 

[5twins]

Why must they be replaced? Why not just use them?

 

[816niner]

I thought that new ones are brass

 

[5twins]

There are two bushings in each side. The inner one may be brass but I think the outer one is steel. It's also rather special in that it has grooves cut in it's I.D. to hold grease. The advance rod rotates inside the cam a little bit and this keeps it lubed .....

 

[Jan_P]

I Once did that removing --- If I remember right like this
Cant remeber why I did it. Perhaps a Boyer Bransden installation
There are groves in the bushing I made a small ring of soft steel wire ..Inserted that in the groove
like a circlip
Then from the the other end I inserted a socket with about the same diameter as the inside diameter
Pushing that in until it stopped against the soft steel wire ring
Then with a rod landing on the socket .. Hammer Smashing it out

 

[816niner]

Thank you

 

[5twins]

I think an internal bearing puller is what most use. But like I said, I don't see the need to remove them unless maybe the new timing rod needs bushings with a different I.D.

 

[816niner]

Thanks what grease is used, anything special?

 

[5twins]

The shop manual recommends a grease with moly in it. I use VW CV joint grease because it has a very high moly content.

 

[gggGary]

IIRC I had a cam with worn out"cams" someone needed bushings. Think I just used a long rod slightly smaller than the bushing ID for the first set. gently tapped around the outside by angling the rod in the other bushing. second bushing use a larger rod or correct socket on an extension and just drive em out.

 

[grizld1]

Except in TCI motors which omit these parts, there are two inserts in each end of the cam. The outer one is a grooved steel "labyrinth seal" and the inner is a plain steel bushing. I use a blind hole puller consisting of an expanding collet on a slide hammer.