Question about Echo CS400 18" Chain Saw

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To much oil from thechain and bar - Echo CS400 18" Chain Saw

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If a CS400 the oiler is adjustable. See page 27 of the above attachment. You can download an OM here:
If your saw is not listed type "CS" in the “Model:” window, click "Search" and select your saw from the list provided.
I think the serial number is key to getting the correct one.

If you have more questions or need additional help please reply below and I will get back to you. HTH & Good Luck.
Thank You for using FixYa.

Posted on Sep 06, 2010


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1 Answer

Bought the saw used with a new bar and bar it won't oil

*Make sure there is oil in the oil tank
1. remove the bar and chain and run the saw with them off. Oil should be pumped out the oil vein on the side of the saw.

If there is no oil being pumped out then you have 1 of 3 issues.
a) A blocked oil pipe or gauze filter in the tank.
b) A blocked or broken oil pump.
c) A broken or damaged oil worm/drive gear

2. If oil is coming out the oil vein then check that you have the correct bar for the saw and that the oil hole lines up with the oil vein. Also check that the bar groove is clear of dirt and debris allowing oil to travel along the bar.

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Follow the top of the chain back to where it mounts to the engine. It's small and inline with the chain. There is also a bolt on the screw that keeps the screw from loosening. Good luck

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Remove the nuts that hold the clutch cover on, Then remove the bar and chain. Make sure the port hole in the bar is open for the oil to flow into the chain groove. The oil ports can get plugged by sawdust and chips. Bar oil is sticky. The bar and chain should be removed and cleaned on a regular basis. Clean the groove in the bar too. Also make sure the port on the saw body is open. Start the saw with the bar and chain removed, if oil doesn't flow from the port, then you have a faulty oil pump and will need to go in deeper to replace the pump parts.
Always use proper clean chainsaw bar oil. Using other types of oil can burn up your oil pump.

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Do you have to use a special bar oil for chainsaws?

Use the highest grade bar oil you can afford. If you have to, use gear oil 85/140 or 90--anything that has the ability to resist being thrown off the bar, like Hypoid gear oil. Regular bar oil has the correct additives and will stay on the bar long enough to lubricate it.

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1 Answer

Bar sprocket smokes, gets hot spot

Sounds like you're not getting enough oil to the chain. Basically you've got an oil pump, pickup and filter involved in getting oil from the resovior to the chain/bar. If you cleaned the obvious area and the chain is not coated with oil, you may have a clog further up (inside) the oil delivery mechanisms. Also, drain the oil from the tank, and see if you can "blow" air through there. With the saw running & pointed down, you should be able to see oil on the ground being slung off the chain, if not, you are not getting enough oil to the chain.

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1 Answer

Bar oiling problem

Just a thought: Is it cold where you are? At this saw mill where it is my job to keep chain saws running, learned years ago that you cannot use "bar oil" in winter. Need thinner oil, like motor oil. ....preferably a "non-detergent" motor oil, plain 30-weight is OK, HD30W will work, but the HD part causes the chain to stretch more so than standard bar oil. The bar oil literally is so thick in cold that it stripped the worm gear out of a Poulan Pro oil pump (plastic gear, anyways, wasn't much to begin with.) But thought you may want to try thinner oil, if it is cold where you are. Oh yea we also have 2-Husqvarna 359's with 20-inch bar, and use thinner oil in winter. Our Husqvarnas have an oil adjuster located on bottom, on clutch side. Straight slot screw adjustment.

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