Oil leak from camshaft - Snowblower Forum : Snow Blower Forums
 
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post #1 of 9 Old 12-18-2019, 01:40 PM Thread Starter
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Oil leak from camshaft

Hello, have a Tecumseh 10hp hmsk100 engine on snowblower. It has a pretty bad oil leak coming off the camshaft pulley. You can see a continuous stream when running. My question is how exactly is that camshaft sealed? I can find parts for a crankshaft seal but can’t find anything for the camshaft. Any help would be greatly appreciated!
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post #2 of 9 Old 12-18-2019, 02:40 PM
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You will have to tear the engine down completely to do the work.
There is no easy fix for a crank shaft seal leak/repair.
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post #3 of 9 Old 12-18-2019, 04:42 PM
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Agreed, Nothing hard to do just a LOT to do and make sure it all goes back together right. Have one off a Craftsman that was leaking so I just swapped it with a engine I had sitting as backup and will tear down the bad one and fix over the summer.

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post #4 of 9 Old 12-18-2019, 05:01 PM
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Some Applications You Don't even have to pull the Engine to split the case. Some You Do. Fairly Straightforward to Do. Drain Oil, Once the Crank Pulley, Cam Pulley and Air box is off, Remove Governor Arm screw, and 8 Case Bolts. Tap Until Case Opens. Knock Out Seal, and Reassemble.

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post #5 of 9 Old 12-18-2019, 05:16 PM
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Quote:
Originally Posted by Jackmels View Post
Some Applications You Don't even have to pull the Engine to split the case. Some You Do. Fairly Straightforward to Do. Drain Oil, Once the Crank Pulley, Cam Pulley and Air box is off, Remove Governor Arm screw, and 8 Case Bolts. Tap Until Case Opens. Knock Out Seal, and Reassemble.
SURE go and make it sound simple LOL

Sno-Tek Modded, 15"X-Track tires (Now has same X-Track tires but 13"x4" for better fit), 254cc engine LED light and hand warmers.
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post #6 of 9 Old 12-18-2019, 05:22 PM
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Probably want to check that the crankcase vent is operating properly as well.
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post #7 of 9 Old 12-18-2019, 05:30 PM
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Quote:
Originally Posted by Dauntae View Post
SURE go and make it sound simple LOL

Depends on Your Experience, I suppose. Last Week I Replaced a Governor Gear in less than an hour. (Case Gasket Didn't Break)

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post #8 of 9 Old 12-18-2019, 10:38 PM
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Maybe because there were no pictures posted I’m missing something... I am not sure why people are suggesting that the engine case needs to be opened to change an external oil seal?
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post #9 of 9 Old 12-19-2019, 08:57 AM
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Quote:
Originally Posted by cutsuprme View Post
Maybe because there were no pictures posted Iím missing something... I am not sure why people are suggesting that the engine case needs to be opened to change an external oil seal?

I stand Corrected, Thank You. The only time I do oil seals is after doing internal repairs, and I was thinking in terms of that.

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