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Re: MF 65 valve lash-hot vs cold

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Tony in Mass.

06-06-2013 07:02:26

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Yeah, this is my only pet peave with fergies... when I had farmalls and AC's, you could get at the valves in a couple minutes, and run all day without anything above them if you had to. Center of hood was off, no tank in the way, and gas stayed connected... but then... they weren't fergies or masseys!

Whatever you do, don't make them too tight, what's the old saying? 'Better to error on the side of caution'? Safer to have them a little loose and noisy than too tight and have worse problems in the long run. after all. you don't want to have to field strip half the tractor more than necessary right? Take you time and good luck!

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06-06-2013 13:30:13

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 Re: MF 65 valve lash-hot vs cold in reply to Tony in Mass., 06-06-2013 07:02:26  
Yeah, my big concern was for valves being too tight. When I bought it 20 years ago it started to run very poorly and the issue was tight valves on the number 4 cylinder. It has been running poorly again with similar symptoms, and I was doing the valves again as a matter of principle. It turns out that they were still within 0.001-0.002 of expected. So other issues are at play this time.

I was also able to measure within 30 minutes of running, and again the next morning. All measurements were within 0.001 of eachother. So hot vs cold doesn"t seem to matter much on this engine.

Thanks for all the replies.

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