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WD45.......Milky Oil

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Fredd

04-19-2008 12:15:12




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Hello,
I pulled the dipstick out this spring, and what did my wondering eyes see? but a little grey sturff on the bottom of the stick, so I thought, well, maybe just from sitting over the winter. So I drove it over to the shop and sure enough, when I got there, the oil was milky. Has oil pressure, fine, and no really missing water, that I notice. So I changed the oil, filter, and topped off the water. I put it back in the shed and left it sit a couple weeks. I got it out again the other day, to get to equipment behind it, and my grey, milky oil was back again. I definitely need to look into this now and find the problem, because it is not from sitting over winter. Is there any place that it is common for these guys to rust through, or leak water into the oil at? Is the head gasket at all likely? I am sort of hunting blind here, so any help is appreciated!

THanks!

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Jack a

04-22-2008 04:29:48




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 Re: WD45.......Milky Oil in reply to Fredd, 04-19-2008 12:15:12  
Touch your finger to the milky oil then touch your tongue. If it tastes sweet then it's antifreeze.



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Texas Denny

04-20-2008 06:48:02




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 Re: WD45.......Milky Oil in reply to Fredd, 04-19-2008 12:15:12  
Fredd, I just read the other posts and didn't notice this warning. When the oil mixes with antifreeze, something happens to the oil - it no longer lubricates the bearings. It feels like oil but has no film strength providing zero lubrication and so the bearings will wear out in a very, very short time.

I have had several tractors with bad o-ring seals on the bottom of the cylinders - cause same problem. And I had one where the freeze plug rusted through. And I've had the cracks between the cylinders at the bottom where the o-rings seal. And once I had a cracked head - cracked by a valve seat.

The freeze plugs should be the first check. Then the head as suggested by others - pressure test. The last check is the bottom of the cylinders. You'll need to pull the sleeves to check this. If you've not done this in the past, check back before starting.

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todd thunder

04-19-2008 20:12:30




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 Re: WD45.......Milky Oil in reply to Fredd, 04-19-2008 12:15:12  
Before I would get to excited , flush out the milky oil, I use a little diesel at low idle, It does"nt take much residual milky oil to make your new oil milky, could just be rain water or condensation, good luck!! our wd-45 has been here since 59 no major problems ever!!



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Edpap

04-20-2008 07:19:45




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 Re: WD45.......Milky Oil in reply to todd thunder, 04-19-2008 20:12:30  
Todd,
good point



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Fredd

04-19-2008 18:49:20




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 Re: WD45.......Milky Oil in reply to Fredd, 04-19-2008 12:15:12  
Mr. Old, I am pretty sure that the anti-freeze was strong enough. When I checked the water, after I discovered the problem, it looked pretty green; so I tested it. It floated 4 balls which, according to my tester, is good to -20. I will put mostly water in now the next time or so, if I need to add. :)

Thanks



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Clay in MI

04-19-2008 19:34:37




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 Re: WD45.......Milky Oil in reply to Fredd, 04-19-2008 18:49:20  
Remove the valve cover and check the freeze plugs first like Bob said. I picked up a 45 cheap last year because it had water in the oil - it turned out to be a leaking plug, $2.00 and I was back in business.



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bob from ill

04-19-2008 18:48:35




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 Re: WD45.......Milky Oil in reply to Fredd, 04-19-2008 12:15:12  
My wd-45 was same way a few years back. Got the hood off to pull the head, removed the valve cover to find that one of the freeze plugs popped loose. I guess the anti-freeze wasn't strong enough mix. Maybe you'll be that lucky too.



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Edpap

04-19-2008 17:01:21




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 Re: WD45.......Milky Oil in reply to Fredd, 04-19-2008 12:15:12  
Hello Fredd
first thing I would do is, let the tractor sit for few days then loosen the oil drain plug just enough to get it to run alittle. If you have engine trouble you will see clean antifreeze come out first.if so then I would pull the head and inspect the head gasket. if no trouble there then send the head out and have it pressure tested. if checks ok then I would go for the linner orings.
If the tractor smoked and used oil before this problem then at this point I would rebuild the motor. If the tractor ran good then you can deglaze the linners replace the orings and the rings and rod bearings if need be.
One other thing I thought of, that head might have freeze plugs under the valve cover I can't remember for sure. I did a AC170 engine last year but it has been too long.
one thing you can be sure of, is if you have coolant in the base it needs to be fixed.
Good luck Ed

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old

04-19-2008 13:42:20




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 Re: WD45.......Milky Oil in reply to Fredd, 04-19-2008 12:15:12  
Head gasket and or the sleeve seals. Either one or both can cause that. I would pull the pan off and have a look see to find out where its coming from. Or it could also be a cracked head or block if your anti freeze was not strong enough



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BushogPapa

04-19-2008 18:51:13




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 Re: WD45.......Milky Oil in reply to old, 04-19-2008 13:42:20  
Sounds like me and our WD-45's for years, before I dropped an oil pan and saw a very short crack between #1 and #2 sleeves, across the block web.. This is very common and will give you this trace of oil, yet not seem to show any loss of coolant.. If this is the problem, an old AC mechanic said to clean and rinse out the water jacket and get it DRY...then Hose in a full Pint or more of non-Hardening Permatex down into the water jacket and with the freeze plugs out, you can confirm that it has made complete coverage around the bottom of all the sleeves.. That crack won't hurt anything once you seal it and you don't need to tear it down to repair it permenently...! Ours had run for many years with that slow seep into the pan... Ron.

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