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Allis Chalmers Discussion Forum

Milk in oil pan

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Justin B

10-24-2004 10:19:39

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I'm really getting discouraged by this last problem,,,
I got a 1940 Allis B and I put the head on with a new gasket and torqued all the bolts after about five min. of running a re - torqued the head bolts. Now after about 4 hours of running the oil is now turned a milky color. Is there anything I can do to stop this from happing can I add a supplement to the coolant or oil to stop this. Thanks Justin

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Dean

10-25-2004 06:08:24

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Re: Milk in oil pan in reply to Justin B, 10-24-2004 10:19:39

I have uese K & W Block Sealer before with good results. It is made for cracked blocks. Don't know if it will work on the joints between the block and the neoprene O-rings though. If you use it, it is critical that you follow the directions exactly.

Dean

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Tom Miller

10-24-2004 19:32:05

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Re: Milk in oil pan in reply to Justin B, 10-24-2004 10:19:39

Are you sure that it is comming from the coolant, did you use a assembly lube when you reassembled the engine. Luberplate will cause the oil to turn a milky color.

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Gene

10-24-2004 16:28:23

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Re: Milk in oil pan in reply to Justin B, 10-24-2004 10:19:39

I have used block sealer on my 305 Chey engine. The engine antifreeze fouled the #8 plug. At least in this case it worked.

I have a 1936 WC that had been sitting for years. Rerung it - didn't pull the sleeves. Before starting the engine up I added block sealent to the cooling system. No leaks - but I don't know it the engine would have leaked without the sealent.

There are several types of block sealent at the auto parts store. This is not the same stuff used to seal leaks in radiators. I recommend you give it a try. I don't remember the exact cost - some where around $6.00 or $7.00 for a container.

Read all of the labels before you purchase the item. Then carefully follow the directions on the container. Some you have to flush the cooling system really well, others you can add directly to the antifreeze solution.

If it works - great - if not your out few dollars.

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Bob D. (La)

10-24-2004 14:35:15

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Re: Milk in oil pan in reply to Justin B, 10-24-2004 10:19:39

Justin, It was mentioned earlier, but pull the valve cover and check the freeze plugs in the head directly under the rocker arm. A year ago I rebuilt a C and had the same problem. Guess what I had failed to check.HTH

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wdTom

10-24-2004 14:05:45

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Re: Milk in oil pan in reply to Justin B, 10-24-2004 10:19:39

Does the head have any freeze plugs in it like on a WD engine? If so, they can rust out and give you water in the oil. On WD engines the plugs are sort of under the rocker arms. You cold take the valve cover off and look easy.

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Gene

10-24-2004 10:45:55

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Re: Milk in oil pan in reply to Justin B, 10-24-2004 10:19:39

Guess. O rings at bottom of the piston sleeves are leaking.

Auto parts store has some very good block sealers that are installed in the cooling system. You just need to read and follow the directions. I would give this a try - for a few dollars.

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justin B

10-24-2004 11:47:45

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Re: Milk in oil pan in reply to Gene, 10-24-2004 10:45:55

The block is in good shape checked it for cracks especially were they are common on this engine and all is good. I'm thinking that these O rings are a big job and I dont think I can face anouther "big one" on this tractor. The sealent that was mentioned does it really work and is it safe to use?

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Justin B

10-24-2004 16:40:45

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Re: Milk in oil pan in reply to justin B , 10-24-2004 11:47:45

I checked the freeze plugs and seem to be in working order I'll give that block sealer a try on Monday thanks for the help!
Justin

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punchie

10-25-2004 04:20:51

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Re: Milk in oil pan in reply to Justin B , 10-24-2004 16:40:45

Hey change oil and filter again maybe use had something in it like talked about above. Punchie

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