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JD60 flywheel timing etc.

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Leon R

11-22-2002 18:37:41




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Well today I fired up the old girl and it runs just fine but only after I had to compensate for what I believe is a flywheel that had been mounted somewhat off what it should be. And because this is my first horizontal two cylinder I am not sure how smooth it is supposed to run. The flywheel has been previously altered to accept two keys to keep it from moving. keyways were cut opposite to each other and then keys driven in using the splines in line with the keyways. Looks like a good idea but darn hard to remove as I had tried but couldn't when I was redoing the engine. As the crank was OK I left it as it was. Now that I have it running however, I believe that with the flywheel being installed wrong that the balance has been thrown off which is causing the excessive shake of the whole tractor. I am also not sure now that I have the correct flywheel. The part Number is A3284R. Can anyone confirm that as the correct flywheel for the 60 Orchard?? I am now going to have to take the flywheel off and plce it back on so the timing marks are where they are supposed to be. Any ideas as to how to get those keys out as I never had any luck trying to pull the whole flywheel. Thanks

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Leon R

11-22-2002 21:22:25




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 Re: JD60 flywheel timing etc. in reply to Leon R, 11-22-2002 18:37:41  
You know the old saying, READ THE MANUAL. Well I did and it says when installing the flywheel line up the marks. So out to the shop I go and closely inspect the flywheel and crank. Whoever installed it last did not and under close examination I found the marks and they are out about two spines which is what I figured the timing marks were out. So, the flywheel has to come off. I'll let you know how I make out with that.

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Leon R

11-22-2002 20:30:32




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 Re: JD60 flywheel timing etc. in reply to Leon R, 11-22-2002 18:37:41  
Thanks Clooney. I have been thinking about this all evening. I understand what you are saying but with the flywheel being installed a couple of splines off you can't use a timing light. The flywheel looks like it is cast with a weight to help with the balance. So if the flywheel is off so is the counter weight which would cause the shake. I think I am going to have to take the flywheel off if for no other reason than to have the timing marks where they are supposed to be. I should be able to get it tight again simply by using the same method with the keyways.

By the way, Thanks for your help with the wiring diagram. Ran it for an hour or so and has good oil pressure and never got hot so I am happy with that. Just not happy about the flywheel problem.

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Clooney

11-23-2002 05:38:57




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 Re: Re: JD60 flywheel timing etc. in reply to Leon R, 11-22-2002 20:30:32  
Leon, if it's off 2 splines you probably can't add enough weight to balance it. The timing marks are easy enough to re-mark in the correct place but the counter weight issue is probably too far off to balance out. I thought you were off only one spline & even that would be iffy to balance out, but worth a try.
~To remove that flywheel you might try drilling & tapping the ends of the keys then putting some all-thread in the tapped holes & putting a short piece of pipe over the key then use a few washers & a nut over the pipe to see if you can pull the keys [I have had some success using this method on other key removal problem areas]...

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Clooney

11-22-2002 19:41:54




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 Re: JD60 flywheel timing etc. in reply to Leon R, 11-22-2002 18:37:41  
Leon, before messing with that tight flywheel [once you loosen it you might not get it tight again], make sure the clutch driver is indexed correctly [if that is mis-aligned you will have a pretty good shake]. If the clutch driver is indexed correctly you might try adding stick on lead wheel weights to the inside rim of the flywheel. Start with about 10 oz. & try to stick the weight 180� from the light spot on the clutch driver, then run the tractor through the RPM range & see if it gets better or worse, then move the weight 90� in either direction [mark the first spot you had the weight as #1, then run again, mark that spot as #2 & record if better or worse than #1 & if better than before weight was added, do this all the way around the flywheel until you have 4 numbers, then put the weight back to the spot that had the least vibration. Now add more weight & run again, if better yet add more, if it got worse remove weight. Do this until you get it smooth or you run out of places to install weight.
~Once you figure out how much weight you need you can either leave the stick on weight, or make a permanent bolt, or weld on weight, or drill the same amount from the opposite side of the flywheel. ~This method is kind of time consuming but you can obtain an acceptable balance if you work at it [at least on a correctly mounted flywheel, I don't know about a flywheel that is mis-mounted but it is probably worth a try..... .

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Clooney__Re: flywheel

11-22-2002 19:45:06




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 Re: Re: JD60 flywheel timing etc. in reply to Clooney, 11-22-2002 19:41:54  
I don't show a different flywheel for the orchard so it looks like your flywheel is the correct one..... .



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