bar oil leaking into C.Chamber Homelite XL2


Old 07-20-07, 05:45 PM
Thread Starter
Join Date: Sep 2006
Posts: 15
Cool bar oil leaking into C.Chamber Homelite XL2

I have a small homelite XL2 chainsaw. When I tried to start it last week, I flooded it, and when I pulled the spark plug I noticed that bar oil is leaking into the combustion chamber. Is there a seal or something that is on the automatic oiler? It is a good little saw and I'd like to fix it. Thanks for any advice
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Old 07-21-07, 02:32 PM
Join Date: Mar 2007
Location: Southern Wisconsin
Posts: 354
illustration breakdown of saw

You might try ( website and check the online parts illustration. This will get you to EMPART web where you can either put in the UT- model number under the MODEL header or manually search the product line header for your unit. You might have to check several as there are many different XL 2 listings. I have not done an XL for some time and I believe that they have a separate oil tank. The oil is pumped to the bar by crankcase pressure changes in a diaphram pump. The pump might be causing a leak of oil into the crankcase but like I said, it has been some time since the last XL unit I worked on. I do remember a model that used a presureized tank that had a hose from under the carb that had a duck bill valve in the oil tank. Good Luck
Old 07-21-07, 04:16 PM
30yearTech's Avatar
Join Date: Oct 2006
Location: Central Texas
Posts: 1,176
Most likely it's the duck bill valve that pressurizes the oil tank that is allowing bar and chain lubricant into the crankcase. Some models used only a pressurized oiler tank to feed oil to the bar, but even the ones with the diaphragm pump utilized a pressurized oil tank. I have seen many units that had the valve missing or fell off into the oil tank and would smoke excessivley due to the missing duck bill valve
Old 07-22-07, 01:57 AM
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Join Date: Sep 2006
Posts: 15
Cool re: bar oil leaking into C.Chamber

Thanks for the replies, I now remember replacing that duckbill valve about 4 years ago. Either it fell off in the tank or it is bad. Thanks again. The XL2 is such a cheap little saw, but I keep it for sentimental reasons, it belonged to my late father in law, that and it fits real handy in the plastic dairy crate strapped on my honda 90.

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