HMSK-80 still leaking oil - Snowblower Forum : Snow Blower Forums
 
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post #1 of 5 Old 01-19-2020, 08:36 AM Thread Starter
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HMSK-80 still leaking oil

I’ve got a 20 year old Tec. HMSK-80 that is leaking oil while running and working. It is pooling and running to either side of the motor. Are there any places that are more prone to leak? Bottom of the base gasket?

Thanks,
Scott
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post #2 of 5 Old 01-19-2020, 08:41 AM
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Could be anywhere.

The best way is to clean it good and fire it up and start looking.
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post #3 of 5 Old 01-19-2020, 11:45 AM
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In summer it's a little easier, just pressure wash and follow up looking. If it's not leaking just sitting it's likely higher than the lower sump seal. Your previous problem was leak from the crank output seal (thought you rolled it, replaced again).
Oil can only come out a few places and you say it's "pooling" so assuming the oil level is dropping also?

Have you checked the breather tube behind the carb? Wipe it off well and then run it around, hit a snow bank or two and check again. You can duct tape a piece of paper towel near the tube to see if it's coming out there under load. If the oil level is not dropping in a rate similar to the amount of pooling does the oil smell like fuel or appear thin?
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post #4 of 5 Old 01-19-2020, 02:38 PM Thread Starter
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I have checked the breather tube. In fact there was oil coming out. I attributed that to the amount of times I tipped up the machine on its auger cabinet. I opened it and cleaned it out. Seem all good now. I’m wondering if it’s coming from the lower end , like you said. I’ll keep an eye on it.
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post #5 of 5 Old 01-20-2020, 07:38 PM Thread Starter
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I did clean and check the breather tube and box. I removed the green filter and cleaned it. I believed it came from the crankcase breather after I tilted the machine on its nose several times. I used a piece of brake line and extended it so it wouldn’t go into the transmission. So far no oil from that part. I cleaned all the oil off the frame and ran it so the motor was working and again no leaks. It was recommended to continue to run it while keeping an eye on it. It was also said that some motors like to run a little less oil.
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