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Rocker arm bushings

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Rich W.

03-21-2003 22:16:49




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I am in the final stages of a rebuild on my Continental Z134 for my MF35 and need some rocker arm advice. I have to replace the rocker arm shaft and also find that some of the rocker arm bushings are worn out of limits. The bushings are available and I wondered if it is a simple matter to just press the old ones out and the new ones in? Or are there any special procedures to follow? Big Dean do you have any thoughts on this? Thanks for any tips.

Rich W.

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Iowa Dave

03-25-2003 07:45:32




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 Re: rocker arm bushings in reply to Rich W., 03-21-2003 22:16:49  
Rich, Just went through this as part of a total rebuild on a 134. I took my service manual at face value when it said the bushings aren't replaceable and bought a whole new assembly, as all my bushings were worn out of spec and the shaft severely scored and out-of-round. Have since learned a competant shop could have done it, as you're correct-the bushing's are available. Didn't find a source for shafts, but they have to be out there somewhere.

I would think the bushings would need reaming after pressing, probably not as close a tolerance as piston wrist pin bushings, but not something you want to do a hack job on either. The tough part of doing it yourself would be drilling and lining up the oil flow holes and then pining or swaging the rocker to the shaft so it doesn't turn during operation and block oil flow. Depends on your experience level and tools available, I'd take mine to a shop if I had it to do again. Still would have been a bit pricey but cheaper than a new assembly.

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