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Rattle and rockers 99

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Rattle and rockers 99

Posted by robert_tuck at July 02. 2017

While investigating a minor leak from an exhaust rocker sideplate I noticed that the tangs on the sideplate were not engaging with the rocker spindle, there also apeared  to be enough slack for the spindle to freely rotate cold. I have no intentions of taking the head off for a few months and am probably just going to shim the spindle to bring the end flush with the end plate. I suspect any wear will be in the ally head supports. Anyone tackled this issue?.

Re: Rattle and rockers 99

Posted by John Shorter at July 02. 2017

Are you sure the spring washer, on the inner end of the rocker spindle, has not broken up?

Re: Rattle and rockers 99

Posted by robert_tuck at July 03. 2017

Hi John,  The spring washer (to my knowledge) does not load up the spindle and should make no difference even if missing, my spindle is either too short or has bored its way into the head , a packing washer should bring it flush again and allow the tangs to engage. I have read of a few bodges to tighten the spindle in the head, center punching the ally, sqeezing the ally to bulge it a few thou,making o/s spindle and reaming the rocker bearing,  locktite. As the parts don't rotate even a bit of feeler gauge may work (yes horrible bodges).

Re: Rattle and rockers 99

Posted by John Shorter at July 03. 2017

Sorry Robert, brain had slipped out of gear!   I was thinking of the spring washer, on the spindle, which bears on the rocker (which always tries to slip out, as you replace the spindle!).

Although the spindle should not rotate, hence the tangs, it should not be a tight fit into the head, making fitting/removal more difficult.   Your idea, of a packing washer seems the easiest, and most simple solution.

Re: Rattle and rockers 99

Posted by robert_tuck at July 03. 2017

Don't need to apologise John, re -read my post at 7 am ,could not make any sense of it, or of yours!, by 8am could not understand having any problem at all , brain cells bumped into each other in the wilderness ,thank god.

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