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OIL LEAK AT DRAW BAR SUPPORT - John Deere 4000 4020 4430 Tractor Repro Drawbar

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Leaking oil when not in use

There's an o ring on the bar mount. It seals the oil passage from the tank to the bar. It will leak there. The tank itself may have developed a crack that will leak. The rubber lines from the tank to the pump can leak if they are cracked ir gummy.

Jun 29, 2015 | Stihl MS171 12" Chainsaw

1 Answer

No oil on the blade of my saw

There is a vacuum diaphragm inside the saw that draws the bar oil out of the resevouir and onto the bar, if there is any leak at all in that vacuum system, it will not draw any oil to the bar. Also, the oil outlet at the bar may be plugged with saw dust, check that first.

Nov 24, 2014 | Garden

1 Answer

Why does my john deere chain saw leak a lot of bar oil after i get done running it?

There bar oil seal is not that great it wears out right away and leaks instead of squirting oil when you pump it.
Don't worry 80 % of all chain saw leak sooner or later. Just put oil when you use it then drain it when you store it.

Oct 19, 2014 | Garden

1 Answer

What would leak oil onto the starter

the oil leak could be a bad valve cover gasket needing replacement, a head gasket leaking oil, a leaking intake gasket and oil running down along the engine block and dripping. it could be an oil pressure switch that is leaking. it is near the starter while driving or engine running can spray oil onto the starter. unless the oil leak is very bad and has been leaking a long time onto the starter will not cause it to act like a dead battery even then not likely. have a starter draw test down to check condition of the starter.

Sep 23, 2014 | 2003 Ford Taurus

1 Answer

My stihl ms390 chainsaw leaks bar oil, so i put a threaded plug in the hole, and when i get the plug far enough in, it impedes the oil flow to the bar.

Take the bar off and clean all the pieces and parts where the bar mates to the motor. Make sure the hole on the side of the bar, where the oil gets onto the chain drivers, is not plugged. Make sure there are no burrs, on the edge of the bar from chain wear, which will push the bar away from the chainsaw body leaving a gap for oil to leak. If your bar is worn, most bars can be flipped over and used either way. If it is made to be used in on either side it will have a hole for the oil to get into the bar on both sides. Alternating or flipping the bar will make it last a lot longer.
Something else to check is if your saw has a breather hole and if that is what is leaking or it is plugged and is not allowing the tank to breath. Not all saws have this feature.
When you store your saw it is best not to store it on its side with the bar hanging down as these position will cause more oil to leak.
Even if you have a perfect fit/seal, between saw and bar, oil will still leak if it is stored in a place with temperature fluctuations. This happens from the oil expands, when it warms up, creating pressure in the tank causing oil to leak out. I always put a piece of cloth on top of a plastic base to prevent seepage onto any surface. I run chainsaws professionally for over 35 years and they all will leak when stored in place with temperature changes. Some are worst than others. Hope this helped.

Sep 29, 2013 | Stihl Garden

1 Answer

Chain saw setting not running the bar oil leaks out, but doesn't if laying on its side

what kind of saw? where is it coming from? all saws will leak some bar oil so how bad is the leak?

Sep 22, 2013 | Husqvarna Garden

1 Answer

Leaks chain oil out while setting, not running

The oil inside the tank will expand and contract with heat and cold from where it is stored. It is good to check and see that there is nothing between the bar and the body of the saw which causes the two parts from having a good seal and leaking oil instead of having all the oil go into the bar channel. Take the side cover and bar off the chainsaw and clean where all these parts meet. Sometimes it will not leak as much. If you store a saw in a place that has temperature fluctuations some oil is always going to leak out. I've always stored mine in a plastic container with rags on the bottom.

Sep 22, 2013 | Husqvarna Chain Saw 20" Bar

1 Answer

Es300 electric

Most chainsaw leak because they are stored in a place with varying temperatures which causes the oil to expand and contact. You only notice it when the oil expands and leaks out the bar. Try and clean between the bar and the body of the saw and file down any burrs on the edge of the bar by where the oil comes out. Sometimes the burrs get bad enough to leave a space which allows oil to leak out easier. Hope this helps.

Sep 19, 2013 | Poulan Garden

1 Answer

Husqvarna bar oil leak? I have a Husqvarna 55 Rancher. After it has been sitting for a while, there is a puddle of bar oil underneath it. After removing the bar and chain, then the clutch and starter...

There is always going to be some oil under the saw, the pump is a constent loss system, oil onto the bar and chain and away, there is a lot of areas in the crankcase and chain brake for oil to get caught and drip out once the machine is set down, if the oil loss is not excesive i would say yjere is nothing wrong here.

Mar 08, 2013 | Garden

1 Answer

Leaking bar oil when hot

As the oil gets hotter it becomes more viscous, so if there is a leak it will get worse, remove the bar and chain, drain the oil from the oil tank and re fill with fuel, this will leak out very quickly and should show you where it is coming from, you can then address the problem.

May 05, 2012 | Husqvarna Garden

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