Loose pushrod ends

kernel65 said:
Like Peach, I’ve used 638. No issues.

I have also used it for rocker spindles that like to turn.
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How can the rocker spindles turn? The retaining plates already keep them from turning. What am I missing here?

Ken
 
lcrken said:
How can the rocker spindles turn? The retaining plates already keep them from turning. What am I missing here?

Ken
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Could it be they are moving inward so the outer plates lose contact with the spindle slot.
#
A machined spacer in the heads spindle inner bore would most likely stop that migration.
 
lcrken said:
How can the rocker spindles turn? The retaining plates already keep them from turning. What am I missing here?

Ken
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The plates don’t always interface with the spindle notch as designed. Even with trying to bend the tabs out and piecing through bits I have for the best fitting ones. Sometimes the bore is a little loose after 50 years of heat cycles or improper removal by a PO. You’ve never caught a spindle turning?
 
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Time Warp said:
Could it be they are moving inward so the outer plates lose contact with the spindle slot.
#
A machined spacer in the heads spindle inner bore would most likely stop that migration.
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You’re probably right as well. I do not have the knowledge or equipment to make a spacer. You’re hard pressed to find a real machinist anymore.
 
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kernel65 said:
The plates don’t always interface with the spindle notch as designed. Even with trying to bend the tabs out and piecing through bits I have for the best fitting ones. Sometimes the bore is a little loose after 50 years of heat cycles or improper removal by a PO. You’ve never caught a spindle turning?
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Got it. I've never had one do that, but I can picture it. I have found the occasional spindle that had a tight push fit when c old, and I expect it would be loose when hot, but nothing too serious.

Ken
 
I needed to make a pair of custom length pushrods for my Goldstar. There are several places that make pushrods, I used MANTON in the USA. Good service, good price. Excellent quality.
 
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