Author Topic: Bar Oil Leak in 346XP (Read 894 times)

g_man · « **on:** February 06, 2012, 04:33:22 pm »

My 346XP leaks bar oil when I let it sit over nignt. Probably a one or two table spoons. If I let it sit long enough it will drain the tank. It looks like it's coming from under the clutch cover but it might be from around the oil flow adjust screw. I can't tell. The oiler works fine. I need some suggestions on how to fix or what to look for. The mess is starting to bug me. Thanks.

lumberjack48 · « **Reply #1 on:** February 06, 2012, 05:49:07 pm »

All my saws seemed to leak oil, so I'm not much help. But help will be coming along soon.

Cut4fun · « **Reply #2 on:** February 07, 2012, 06:51:54 am »

I think I may have the same problem on a new to me used 346 45cc I picked up last month. I picked it up the other day and the bottom and shelf under it was covered in bar oil. The other 346 beside it sitting there alot longer has never done that.

Will look into it in the future to see what I find.

John Mc · « **Reply #3 on:** February 07, 2012, 09:39:54 am »

My Jonsered 2152 does the same thing, and has for as long as I can remember (possibly since new). My Husky 357 has never had the problem. I've just never gotten around to poking around in the 2152 to see where it's coming from... I just have to be careful where I put it when I'm done.

MapleNut · « **Reply #4 on:** February 07, 2012, 09:52:29 am »

I have an 046 stihl, 372 and262 Huskys that all leak oil over time. I try to run them out of gas so the oil tank is almost empty and lay them on the clutch side. May help a slow down the leak a little!

g_man · « **Reply #5 on:** February 07, 2012, 04:10:14 pm »

Well I've had my share of saws over the last 50 years and they all dribbled a little. I expect that. But I never had one that would leak out a full tank of oill in a few days. That seems a bit much to me.

Cut4fun · « **Reply #6 on:** February 07, 2012, 04:13:05 pm »

Yeah whole tank thing sounds weird.

Even the one I got doing this is just a couple of tablespoons of mess then it seemed to stop.

Corley5 · « **Reply #7 on:** February 07, 2012, 06:09:54 pm »

If I lay mine on it's side it doesn't leak as much

JohnG28 · « **Reply #8 on:** February 07, 2012, 07:00:46 pm »

I had cross threaded the cap on my little Husky years back. Saw would leak most of the tank out when sitting for a while. You could barely tell the threads were messed up, and I probably wouldn't have noticed if I didn't do it myself. Couple bucks for a new cap, no more problem. Might be a cheap try to fix the issue.

Ohio_Bill · « **Reply #9 on:** February 07, 2012, 07:16:14 pm »

I have a 346 and it leaks also , but now that I think of it . I have never owned a saw that did not leak .

John Mc · « **Reply #10 on:** February 07, 2012, 09:54:07 pm »

Quote from: JohnG28 on February 07, 2012, 07:00:46 pm

I had cross threaded the cap on my little Husky years back. Saw would leak most of the tank out when sitting for a while. You could barely tell the threads were messed up, and I probably wouldn't have noticed if I didn't do it myself. Couple bucks for a new cap, no more problem. Might be a cheap try to fix the issue.

Mine leaks when lying down (oil cap up) or when standing up.

JohnG28 · « **Reply #11 on:** February 07, 2012, 11:02:37 pm »

I got you John. I have leaks from other saws regularly too, I was just responding to his tank emptying from the leak. This particular instance for me was the only time any of my saws leaked that much. I don't have a very large fleet though.

sablatnic · « **Reply #12 on:** February 08, 2012, 03:15:49 am »

My first guess would be the rubber gasket around the oil pump.
Part #503 85 47-01

g_man · « **Reply #13 on:** February 08, 2012, 07:25:05 am »

Quote from: sablatnic on February 08, 2012, 03:15:49 am

My first guess would be the rubber gasket around the oil pump.
Part #503 85 47-01

OK - Thanks. I guess I will start by taking a look at the oil pump and oil pipe area.

bandmiller2 · « **Reply #14 on:** February 08, 2012, 08:28:30 am »

Drooling is a bad habbit many saws have,don't think theirs a really good fix.I always lay the saws so the caps are up, on something to hold or absorb oil.If thats your saw only bad habbit consider yourself lucky.I do think its just the position of the pump when shutdown,try pulling it over a little. Frank C.

John Mc · « **Reply #15 on:** February 08, 2012, 12:36:37 pm »

Never thought of the pulling it over a little idea. I'll have to try that, epsecially since I'm unlikely to tear into this saw anytime soon

sablatnic · « **Reply #16 on:** February 09, 2012, 11:45:01 am »

It will not help pulling it over, but you can try pulling the chain a few inches, didn't think of that.
The pump on the 346 is not driven by by the crank shaft, but by the clutch drum.

g_man · « **Reply #17 on:** February 09, 2012, 04:48:15 pm »

Well I took my saw apart today and found the leak. The oiler is a clever design but I dont see how it wont leak with time. There is no positive sealing mechanism that I can see.

My leak is a very steady drip from behind the oil pump barrell. I took out the pump. The pick up hose has a tapered section where it passes through the tank wall to make the seal. Then there is square section with a half moon cutout that fits around the pump barrell where the input port is. It matches the one you can see covering the output port. It looks like what is supposed to happen is when you tighten down the pump it forces the tapered pickup into the tank and pushes the pump barrell tight against the dished out half clam shell to make both seals. Then the thin metal chain guide holds the other half clam shell (the one you can see) over the pump output. Like two hands coming together to pray.
It seems to me replacing those parts may or may not help. As soon as that tapered section moves deeper into the tank the cup will losen and it will leak again.
I can stop it if I set it down with the flat of the bar up. The fill caps on the bottom.
What do you think??? May there is a solution I dont know about.

g_man · « **Reply #18 on:** February 09, 2012, 06:07:39 pm »

Quote from: sablatnic on February 08, 2012, 03:15:49 am

My first guess would be the rubber gasket around the oil pump.
Part #503 85 47-01

I just looked up the part sablatnic mentioned. It is a one piece oil pipe from the tank to bar. It has a one piece cylinder that fits around the pump barrell with a hose off each side. In from tank and out to bar. It eliminates the split cupped clam shell affair. It has to be better. Must be an upgrade replacement to fix the bad leaks.

Thank you sablatnic.

g_man · « **Reply #19 on:** February 10, 2012, 07:34:56 am »

After doing a little poking around to find parts diagrams it appears that the 2 piece oil line with the split cupped fitting around the oil pump (like I have) is the newer design.

Guess I will order the old part and see what happens.

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Author Topic: Bar Oil Leak in 346XP (Read 894 times)