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Tractor Talk Discussion Forum

Thin, Dirty Oil Question

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Rick Fanning

03-05-2007 08:27:10




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When I did an oil change on my WD45 over the weekend I noticed the old oil appeared to be a little thin and was a definite gray in color. It looked like a very fine gray silt was in it. The oil level was at the full mark. I also though I recognized the faint aroma of gas in the oil! I was trying to think how gas could have gotten i the oil. The engine seems to run ok. I was wondering if somehow it could have leaked in through the carburator (sp?) The reason I ask this is because if the fuel cutoff valve is not shut completely when the tractor is not in use the gas will eventually leak out. When I purchased the tractor the air cleaner pipe going to the carburator was missing and it looked like the gas was leaking out and onto the ground form the carburator air intake. Does this mean that a float may be sticking? . Since I replaced the pipe, could the gas have built up and somehow managed to leak a little into the oil? Would gas in the oil make it turm gray, or would that be just because the oil probably had not been changed in quite a while ( I say that because the oil filler cap was painted on and the paint job is at least a few years old)?

Any ideas on this? Should I check the float valve on the carb?

Thanks,

Rick in Tennessee

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justanothercase

03-05-2007 21:54:27




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 08:27:10  
If it is your float or you opt to rebuild the carb. Dont put a neoprene float in it. Spend a little extra for brass, it will save you time and money in the future. Thats my $.02



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bill mar

03-05-2007 15:38:57




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 08:27:10  
just a thought, could condensation or antifreeze leaking into the oil make the oil look grey?



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TomTX

03-05-2007 11:47:50




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 08:27:10  
What kind of oil?
Have I misunderstood what you wrote or have you been running this tractor without any intake air filtration?? Left to suck unlimited dirt/grit into the engine, it will not last long. Tom



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Rick Fanning

03-05-2007 12:32:32




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 Re: Thin, Dirty Oil Question in reply to TomTX, 03-05-2007 11:47:50  
That would be engine oil. I have no idea what grade.

Well, I didn't run it much in that condition, but I can't say how much it ran that way before I purchased it. The open intake didn't seem like a good thing so I remedied it as soon as I could.

Rick



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dej(JED)

03-05-2007 11:08:19




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 08:27:10  
Every time you start a carbed engine you get some gasoline in the oil. It is called engine oil dillution and it is a test that tribology labs run . The longer it takes to start, the more gasoline that gets into the oil. It is especially bad when you choke an engine a lot.
It doesn't sound real bad though, just change out the oil and keep an eye on it. I have had several Wd -Wd45's and they all seem to get moisture in the oil. Just so it isn't a cracked block as is often the case. An updraft system can't syphon though.

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Bob

03-05-2007 09:31:31




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 08:27:10  
Repar the carb as needed.

Does the engine have a good thermostat so it quickly comes up to operatng temperature?

The gray oil is likely a sign of moisture in the oil from the engne running too cool and the gassy diluted oil may also be caused at least in part by an engine that is running cold and not burning clean.



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Ken B.

03-05-2007 08:50:57




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 08:27:10  
OOOOPS



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Ken B.

03-05-2007 08:47:11




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 08:27:10  
I would think you would noitce that much gas on a updraft carb . My farmalls will leak gas from time to time and never get any in the oil.



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Ken B.

03-05-2007 08:47:04




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 08:27:10  
I would think you would noitce that much gas on a updraft carb . My farmalls will leak gas from time to time and never get any in the oil.



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Moore Dirt

03-05-2007 08:47:00




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 08:27:10  
Leave the oil analysis to the professionals. Find a place that will check it for you and tell you exactly what's up.

Oil will come out with small metal particulate matter in suspension, that's what detergent oil is supposed to do.

Most all these gas engines (especially if not run hot and hard) will catch the aroma of todays gasoline from normal blow by.



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Ken B.

03-05-2007 08:46:59




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 08:27:10  
I would think you would noitce that much gas on a updraft carb . My farmalls will leak gas from time to time and never get any in the oil.



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mike a. tenn.

03-05-2007 08:38:17




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 08:27:10  
rick...yup...you could have gas in your oil, and yup, you could have a carb float not closing that would cause it. were i you i'd pull the carb, take it apart, soak it in some carb cleaner over night and see if it fixes it. so...yup...you might wanna check your float first and see if that's the problem. if it isn't you get other troubles.

gas running down your cylinder walls isn't good for it either. it'll strip them of your lubricant and you'll be starting with dry cyliders till the oil reaches them. that's to say nothing about how gas in your oil just flat ruins it's lubing properties...so you really need to get it straightened out.

-mike

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RIck Fanning

03-05-2007 08:44:56




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 Re: Thin, Dirty Oil Question in reply to mike a. tenn., 03-05-2007 08:38:17  
Thanks Mike. We seem to have a quorum on this so I'll be cleaning. Hope that takes care of it.

Rick



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bo

03-05-2007 08:31:34




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 08:27:10  
Yes. Depending how the carb is positioned, gas could very well syphon into the intake manifold, past the rings and into the oil. Needle and seat need to be cleaned and or replaced.



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Rick Fanning

03-05-2007 08:41:52




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 Re: Thin, Dirty Oil Question in reply to bo, 03-05-2007 08:31:34  
Thanks, Bo.

I guess I'll try cleaning first. Since the air cleaner was being bypassed I imagine lots of good dust and dirt made its way in there.

Rick



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old

03-05-2007 09:29:20




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 08:41:52  
Yep gas can get into the oil because of a carb problem, but even then its always a good idea to turn the gas off when you park the tractor. Doing that will make 100% sure you will not get gas into the oil and enough gas in the oil will cause you to blow an engine big time



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rustyj14

03-05-2007 09:49:51




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 Re: Thin, Dirty Oil Question in reply to old, 03-05-2007 09:29:20  
Yes, by all means, install a fuel shut-off valve asap! I inadvertently ruined 2 good B&S engines, when i didn't notice they were "making oil" instead of using it! The third one i caught it in time! A stuck float in the carb, or one damaged by water freezing in the float chamber, will give big problems! Water in the oil will give the gray look! And, the gas will, too! Oil is cheap--engines aren't!

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old

03-05-2007 10:48:17




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 Re: Thin, Dirty Oil Question in reply to rustyj14, 03-05-2007 09:49:51  
He should already have a shut off if he has a sediment bowl on it, but a lot of people don't think about shutting off the gas when they park one



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Rick Fanning

03-05-2007 12:44:26




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 Re: Thin, Dirty Oil Question in reply to old, 03-05-2007 10:48:17  
It does have a cuttof valve.

I have only recently done anything with older tractors. When I went to look at the tractor prior to purchase, I had to bring gas because the tank was empty. I drove it very little and left it as it was. I returned later and had it towed on the float to my place. When I tried to take it down the drive to its parking place it ran out of gas before I could barely move it. Further inspection revealed a leaking gas tank which I repaired. I have had to train myself to do all of the checks when finished running the tractor.. turnoff the gas, cover the tailpipe and be sure the key if off (that's another issue). I really had no idea that the gas cuttoff valve had to be shut until I saw gas dripping from the then open intake.

Live and learn on this one. I've also had to have the gearshift shifter rod welded on and had to replace a hydraulic hose. It should be a good little machine when all gets fixed.

Rick

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old

03-05-2007 14:32:08




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 Re: Thin, Dirty Oil Question in reply to Rick Fanning, 03-05-2007 12:44:26  
Yep it takes time to learn what all should be done to them. It also can add up to being a lot of $$ if you ave very many of them



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