YT660 - Engine oil bubbling out of filler neck - Page 2 - Snowblower Forum : Snow Blower Forums
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post #11 of 32 Old 12-19-2018, 11:45 AM
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Originally Posted by Coby7 View Post
I doubt there's anything wrong with your engine. I think you just overfilled it when you did the oil change. Engine has to be level when you fill it to the mark on the dip stick. It is easy to overfill if the auger mouth is lifted a bit.
Yeah....I agree, too much oil. But go back to the OP's thread where he states:

''I changed the engine oil towards the end of last season, topping it up to bring it level with the filler neck hole (as per instructions).''


I have never ever seen that much oil required in an engine. Maybe he has an engine that has such requirements but...
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post #12 of 32 Old 12-19-2018, 12:09 PM Thread Starter
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@skutflut Thanks for super advice.


Did you store your machine with gas in the tank over the summer? Was there any gas left in the tank when you started it during your maintenance work or had the gas mysteriously disappeared from the tank.



Actually I thought I stored it full but it wasn't full when I checked in autumn. That was puzzling me and I was doubting my memory...



Does your machine have a fuel shutoff valve? If it does was it closed?

Yes and yes
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post #13 of 32 Old 12-19-2018, 12:09 PM
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Originally Posted by foggysail View Post
I have never ever seen that much oil required in an engine. Maybe he has an engine that has such requirements but...


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post #14 of 32 Old 12-19-2018, 12:11 PM Thread Starter
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Quote:
Originally Posted by foggysail View Post
Yeah....I agree, too much oil. But go back to the OP's thread where he states:

''I changed the engine oil towards the end of last season, topping it up to bring it level with the filler neck hole (as per instructions).''


I have never ever seen that much oil required in an engine.

Page 45 of the user manual. Feel free to expand your own knowledge by checking out the picture above the text, "Correct engine oil level".
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post #15 of 32 Old 12-19-2018, 12:12 PM Thread Starter
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Aha, Coby7 seems to be helping you out
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post #16 of 32 Old 12-19-2018, 12:23 PM
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I believe the problem lies with one phrase in that picture. "Warm up the engine for several minutes"
Now if I remember correctly oil expands with heat, so if you fill it to the line with cold oil and then start the engine to check it you can be sure of one thing oil is going to flow out of the crank case no question. When I filled mine with this in mind I didn't fill to the top, I just filled to the first mark on the dip stick which is about a " from the top and after running it, it still flowed oil from the filler neck. Let it flow out, you now have the right amount in the crankcase.


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post #17 of 32 Old 12-19-2018, 12:28 PM
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what he said coby7 said
kinda hard to over fill that style plug mine is right to the brim on the414cc its fine
notice no difference cold or warm other then complete drain back cold
if you have no gas leaking in your set
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post #18 of 32 Old 12-19-2018, 12:58 PM Thread Starter
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Quote:
Originally Posted by Coby7 View Post
I believe the problem lies with one phrase in that picture. "Warm up the engine for several minutes"
Now if I remember correctly oil expands with heat, so if you fill it to the line with cold oil and then start the engine to check it you can be sure of one thing oil is going to flow out of the crank case no question.

The "warm up the engine for several minutes" does not appear in my user manual. It instructs an oil check before start-up, and shows that same picture to indicate that the level should be in line with the filling spout lip.


The picture you're showing is from the workshop manual and I think they've screwed up the descriptions on that page. The two main mistakes they have made are:


1. No need to warm up engine before checking oil level.
2. No need to replace O-ring and filler cap when you've simply been checking the oil level.
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post #19 of 32 Old 12-19-2018, 01:44 PM
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it should be right to the brim pretty easy
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post #20 of 32 Old 12-19-2018, 01:51 PM
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Pretty much the same fill procedure that was used on L head Tecumsehs pretty much forever . . .and almost impossible to get wrong without significant effort . . .
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