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Subject: Ford 3000 - Found the problem

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K.LaRue-VA    Posted 04-24-2018 at 09:15:08 [URL] [DELETE]        [Reply] [Email]  
  • Ford 3000 - Found the problem
  • This is one of the things that happens when an engine is run with low or no oil pressure. First thing I see when the head comes off is the No.1 piston laying to one side of the bore, with a much bigger than usual gap on the other side.

    The piston skirts usually hold them a little straighter than this. That noise I was hearing was the pistons rattling around in the bores. Once I pulled the pistons, the cylinder walls look so bad it was a wonder this engine had enough compression to run.


    I ran a bore gauge down each cylinder. The good news is the largest diameter is well within spec for a set of 40-over pistons. There are what appear to be some cracks. Hopefully those will turn out to be surface stuff that will hone out. Time to pull the crank and get started with a hone. This was starting to look like a cheap fix, but pistons for this engine are something like $150 EACH!

    zane    Posted 04-26-2018 at 19:18:45 [URL] [DELETE]        [Reply] [Email]  
  • Re: Ford 3000 - Found the problem
  • Is that engine not sleeved?

    Zane

    K.LaRue-VA    Posted 04-27-2018 at 14:16:39 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford 3000 - Found the problem
  • Based on dedcriptions in the shop manual and other places, the cylinders in these engines were cast in the block. When shopping parts, there are standard sleeves for 4 cylinder engines, but not for 3 cylinder engines.

    Rustyal    Posted 04-27-2018 at 11:06:50 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford 3000 - Found the problem
  • The problem I had was electrolysis from the water jacket damaged the cylinder area. The machine shop said that is common for that engine.

    Rustyal    Posted 04-25-2018 at 14:33:19 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford 3000 - Found the problem
  • I had to put mine in the machine shop for cylinder repair. It was 100 per cylinder. Ten years ago. Great tractor once it was repaired.

    bkrsdoz    Posted 04-24-2018 at 11:20:31 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford 3000 - Found the problem
  • I assume you are having the block bored .040 over and then hone it?
    It sounds like you are going to simply hone it to .040 over, which would not work.

    K.LaRue-VA    Posted 04-24-2018 at 13:43:17 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford 3000 - Found the problem
  • Only problem with that is I've already used a hone to bore and fit oversize pistons. It has worked just fine for engines that turned a lot more RPM than this tractor engine will ever see. If a Sunnen hone can only be used for final fitting, they should not have made so many different medium and coarse stones for it. Going 40 over by hand is not going to be the most fun I ever had. No doubt, many of the things I do could be done easier and faster with more expensive equipment.

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