Only Cub Cadets

Only Cub Cadets (https://www.onlycubcadets.net/forum/index.php)
-   IH Cub Cadet Tractors (GT) (https://www.onlycubcadets.net/forum/forumdisplay.php?f=9)
-   -   White smoke from crankcase vent??? (https://www.onlycubcadets.net/forum/showthread.php?t=57888)

ol'George 11-19-2020 02:19 PM

Quote:

Originally Posted by finsruskw (Post 502470)
I had to learn to shift my floor shifter with my foot!!

During my youth, my dates quickly learned how to shift for me, and shift it well.
it was only when I decided to "run the guy" at the stop light,(A quick sprint to the speed limit) then I did my own shifting.
55-60 years ago there was little traffic on the highways.
Also the police knew a lot of the "locals" and cut us some slack.
They were young too, not that long ago.
Don't get me wrong, if we did stuff that was more than lighting up the tires,
like driving while drinking under age/driving drunk, we got in trouble.
It was a good time to grow up, the air was dirty, but sex was clean.
Gas was .$0.17 a gallon and I made $0.65 an hour.

Woodstock wouldn't happen for 8 years and the beetles were bugs in the garden.
No Crack in my system just grease under my finger nails.
I wouldn't mind going back if it could be done.


Now i need to blow the whistle on myself, as I have run this train is way off the track.
My apologies ( till next time) :biggrin2:

Cubcadet_107 11-19-2020 03:04 PM

Quote:

Originally Posted by ol'George (Post 502481)
Now i need to blow the whistle on myself, as I have run this train is way off the track.
My apologies ( till next time) :biggrin2:

Well, there isn't any issue with that. Nothing wrong with talking about how things used to be, I wasn't alive at that time but have heard so much about it that I wish I was.

Going back to the topic, I think I'm gonna do the oil change tonight rather than Saturday because I have more time than i thought. We'll see what happens :beerchug:

Cubcadet_107 11-19-2020 06:55 PM

2 Attachment(s)
Okay progress update:

Oil has been changed, about 1.25 quarts of this stuff

Attachment 106244

Old oil was a bit darker than it seemed inside the engine (although that bucket was already pretty dirty :biggrin2: )

Attachment 106245

Results:

So I believe there is gas getting into the oil. When I shut the machine down last Saturday the fuel line was full of gas (it's a clear line) but today when I went to start it it was mostly empty. After the oil change I shut the valve and let it run itself out of gas, but there must be something wrong with my fuel system.

Speaking of fuel system, it has a very tight flow. The carb is a new Chinesey off-brand, and it seems to function fine when running. It seems to run a bit rich, unless that's just my bad tuning. Gas only flows through the fuel line if the needle/seat is open, so once it fills the gas stops flowing through the line. Now it works fine when running, but I feel like that isn't normal.

Okay and the most important part, once at running temperature, unfortunately the white cloud came back. Someone did say I may have to run it for a bit to let everything evaporate, though, so that may be why. I stuck my face up under the breather while it was running and it clearly doesn't smell like anything, leading me to believe it is most likely steam.

Any thoughts/info or some help with the fuel system?

drglinski 11-19-2020 08:48 PM

Do you shut the gas off when you shut the engine off and see if your fuel level in your tank drops any? And the oil level magically rises before you fire it up again?

Cubcadet_107 11-19-2020 09:03 PM

I always shut the gas off once I turn off the engine (except this time when I shut the gas off and let the engine run out of it), gas leaks slowly from the valve on top of the fuel bowl, only when the valve is closed though. The tank may slowly drop in fuel level because of this leak, but the gas is just exiting the fuel system entirely and dripping on the ground. Gas will not flow in the line when the valve is closed, so that works properly.

The oil level was previously right about at the max fill line, and when I noticed the absence of fuel in the line, I checked the dipstick. I noticed that there was a very slight amount of clear liquid that seemed thinner than the oil below, bringing the level to just above the max fill line. When I drained the oil into the bucket, it seemed that a thin layer of thinner liquid settled on top of the oil too.

docmirror 11-19-2020 10:10 PM

Nope, can't have that. Gotta get the fuel system to shut off completely, every time. I can't comment on the carb or tuning except the way I do it. Warm the engine, then run it full throttle no load, turn the main mixture screw in until it starts to drop RPM, then turn about 1/2 back rich(out).

OBTW, best to use non-Eth gas as the Ethanol is hydroscopic(draws water from the humidity in the air).

finsruskw 11-20-2020 08:42 AM

Leaking around the "T" handle on the valve??

Tighten the packing nut on the valve shaft a bit.

Cubcadet_107 11-20-2020 08:46 AM

Yes, that is where it leaks, only when the valve is shut off though.

Unfortunately tightening the nut won't help, the reason it leaks is because when the valve is closed, I can wiggle it around inside the packing nut because it's worn out.

Not to mention the fact that whoever used that gas tank and fuel bowl before me stripped that nut completely :bash2:

Come to think of it, I don't think that leak is enough to get gas into my crankcase, right? All it does is slowly drip onto the ground

darkminion_17 11-20-2020 09:32 AM

The gas will leak out the carb and into the air filter before it gets in the engine if the needle valve is stuck open.

finsruskw 11-20-2020 10:57 AM

What's a new valve bulb assl'y?
$15??
No brainer.


All times are GMT -4. The time now is 08:48 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, vBulletin Solutions Inc.