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?
FORD 1300 BLOWING OIL OUT THE OVERFLOW TUBE
- Thread starter RECHEEK
- Start date
TraderMark
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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
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
jimmysisson
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Time for wet and dry compression tests.
Jim
Jim
Jerry/MT
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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!
Time for a compression check!
2manyrocks
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Not familiar with this particular machine except to ask if it has a crankcase vent that might be clogged? Is the oil level correct?
arrow
Super Member
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.
Jerry/MT
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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.
TraderMark
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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.
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.