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  1. #1
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    Oct 2011
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    Ford 1300

    Default FORD 1300 BLOWING OIL OUT THE OVERFLOW TUBE

    The tractor only has 700 hours and it runs great. It has a constant mix of smoke and oil that is coming from what looks like to me an overflow tube. It seems heavier while the tractor is under stress. I was wondering if there could be something clogged up or is it motor problems?

  2. #2
    Gold Member TraderMark's Avatar
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    Southeast Georgia
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    Ford 1720

    Default Re: FORD 1300 BLOWING OIL OUT THE OVERFLOW TUBE

    Where is the overflow tube you're talking about?
    Is it in the center of a removable plate on the front cover of the engine?
    If so, that's the crankcase vent. Excessive smoke and oil coming from that tube usually indicates excessive blow-by around the piston rings.
    Is it hard to start? Do you get a lot of white smoke from the exhaust while trying to start it?
    Those things would also indicate excessive wear of the piston rings.

    Hope this helps.
    Mark
    1720 Ford 4x4 w/ 7108 FEL
    Case 1845 Uni-Loader NO it's NOT a "C"
    190C John Deere
    Various implements, some store bought, some home made.

  3. #3
    New Member
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    Ford 1300

    Default Re: FORD 1300 BLOWING OIL OUT THE OVERFLOW TUBE

    Thanks Mark

    That's where it is coming from. It does have white smoke when starting but it starts easy.

  4. #4
    Veteran Member jimmysisson's Avatar
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    1993 NH 2120 (the best), 1974 MF 135 (sold, but solid), 1947 Farmall A (bought, sold, bought back, sold again), 1956 MH50 lbt (sold, in 1980, darn it)

    Default Re: FORD 1300 BLOWING OIL OUT THE OVERFLOW TUBE

    Time for wet and dry compression tests.
    Jim
    "Anything worth doing is worth doing slowly" Mae West

  5. #5
    Veteran Member Jerry/MT's Avatar
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    New Holland TD95D, Ford 4610 & Ferguson TO-30

    Default Re: FORD 1300 BLOWING OIL OUT THE OVERFLOW TUBE

    That's a vent tube for the crankcase and all that blowby indicates a problem with ring sealing or a burned/cracked piston crown.
    Time for a compression check!

  6. #6
    Elite Member
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    Default Re: FORD 1300 BLOWING OIL OUT THE OVERFLOW TUBE

    Not familiar with this particular machine except to ask if it has a crankcase vent that might be clogged? Is the oil level correct?

  7. #7
    New Member
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    Ford 1300

    Default Re: FORD 1300 BLOWING OIL OUT THE OVERFLOW TUBE

    Would just replacing the rings fix that or would I need to go deeper?

  8. #8
    Elite Member
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    Foster, RI
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    Mahindra 3016

    Default Re: FORD 1300 BLOWING OIL OUT THE OVERFLOW TUBE

    Quote Originally Posted by RECHEEK View Post
    Would just replacing the rings fix that or would I need to go deeper?
    A bad injector could also cause this. If a fluid is coming out of it, could be unburnt diesel fuel. 700 hrs is not much for these engines at all.

  9. #9
    Veteran Member Jerry/MT's Avatar
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    Default Re: FORD 1300 BLOWING OIL OUT THE OVERFLOW TUBE

    If the piston crown is burned or cracked or if the rings are broken and have scored the liner it's more than just replacing the rings. You need to find out if you have a leaking injector that caused this problem and replace that also. f you find a bad injector , I'd be looking at cjhecking all of them . This should not happen in 700 hrs of use. You need to find out why this happened.

  10. #10
    Gold Member TraderMark's Avatar
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    Southeast Georgia
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    Ford 1720

    Default

    Let me try to give you a little information on the engine you have and its problem.

    The engine should be an LEK802D. The block has no sleeves and the pistons are flat topped.

    Now for the problem:
    Blowby is caused by air entering the crankcase of the engine. All engines have some blowby. With a normal engine, on the compression stroke, a minute amount of air will leak past the piston rings and enter the crankcase. It escapes the crankcase through the vent tube. When blowby becomes excessive too much air is entering the crankcase. This excess of air can come from 2 places: past the piston rings or through a crack in the piston itself. A faulty injector will not cause excessive blowby. A faulty injector can wash down the cylinder walls damaging the rings and thus causing excessive blowby but replacing a faulty injector will not help excessive blowby.

    A compression check will tell you if too much air is escaping the cylinders. A dry compression test will give you a reference point to start from. Check the compression without adding anything into the cylinders. After recording these readings squirt some oil into each cylinder and recheck the compression. If the numbers rise significantly you will know your the air is escaping past the rings and not past the valves.

    If you determine the leakage is past the rings you will need to remove the cylinder head and the piston/rod assemblies. Excessive cylinder wear will usually show up as a ridge around the top of the cylinder wall. Carbon deposits can also build up in that area so be certain to gently scrape the area when checking for a ridge.

    If your piston rings are intact you can also install a compression (top) ring in the cylinder bore, invert one of the pistons and push the ring down from the top of the cylinder to a point midway the stroke of the piston. Remove the piston leaving the ring in the cylinder bore, then measure the gap between the ends of the ring. This will give a combined total of the ring and cylinder wear.

    If your cylinder bores have excessive wear the block will have to be removed and bored. It can be bored to accept oversized pistons and rings or bored and dry sleeved to bring the bore back to standard size.

    If you decide a rebuild is in order, hold onto your wallet. Parts for these engines are expensive. Rings are around $100 per cylinder. Rod bearings are $40 per cylinder. Some parts ie crankshaft, timing cover gasket are no longer available.
    1720 Ford 4x4 w/ 7108 FEL
    Case 1845 Uni-Loader NO it's NOT a "C"
    190C John Deere
    Various implements, some store bought, some home made.

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