New jasper 3.0 milky oil

[Sea master]

I just installed a new merc 3.0, after getting it running good, checked oil and it was milky.New remanufactured jasper engineNew water pumpNew thermostat housingNew manifoldThe riser is the existing riser.At first the carb float was stuck and the gas was just running after we got it cranking. Could the overflow of gas cause tgeboil to be milky?

 

[Sea master]

Just drained the oil several times( drained old oil, put on muffs and ran it for about a minute) then drained oil is always milky. Pulled plugs they were dry. Is the only possibility the block might have a crack??

 

[guyjg]

Since you have not rec'd any response I'll try to help. Gasoline won't turn the fuel milky only water intrusion does that.

Is the only possibility the block might have a crack??

Since the engine is a new Jasper you can asssume the block would have been inspected for cracks by them before reman. Is the reman. engine a long block; block w/head or or short block w/o head?

If it is a short block the head gasket could have been compromised when installed or the head could be warped and not allow proper head to block gasket sealing which would allow water intrusion. Did you use new head bolts? Did you retorque the head bolts after the first run? Was the head reconditioned by a competent machine shop, i.e., they should have milled the mating surface for a perfect fit to the new block?

The riser is the existing riser....Pulled plugs they were dry....

If it is a long block the riser could be corroded thru which would also allow water intrusion into the block via open valves even if the plugs were dry. But I'm not leaning that way.

...New manifold...

The manifold could be defective internally or have an uneven riser mating surface or the riser gasket could be the problem. Is the manifold a Merc. or GLM or other aftermarket brand? Which brand is it? Hope I helped.