Figbuck Posted February 16, 2011 Report Share Posted February 16, 2011 I overhauled my L16 ten years ago and have 62K on the rebuild. It has run and does run like a top. Burns no oil or has any leaks anywhere. This summer I saw that my temp gauge was running a little past mid way, so I checked the rad level and it needed about a quart. I put a new rad, Stant cap, hoses and clamps in it about two years, 8K mi ago. A little later I found the neoprene grommets for the two penetrations in the fire wall for the heater hoses and completely renovated my heater. Heater core was in good shape so I changed the heater hoses and changed out the heater valve with a new one. I was refilling the rad every once in awhile until it got cold before Christmas. I flushed the rad with heavy duty Prestone junk and filled it with coolant. I looked all over the place to see where the coolant might be going. I couldn't see any drips, drops. I don't have a recovery reservoir, just a hose out of the filler neck. There is never a puddle after I shut it off. Yesterday I checked all the hoses, they are all soft and new. I have good clamps and checked the connections to the heater in the cab, looked all over the rad for weeping or leaks. There is no coolant in the oil at all. Lately I have had to put a quart in it every other day... my commute is about 22 miles round trip. I can't see where it is coming out or figure out where it might be going, The only weird thing is that when I take the air cleaner cover off there is a frothy oil/water goop coming from the breather hose connected to the valve cover. It's kind of a lot of goo but not a quart. Never seen that before in hundreds of thousands of miles I have driven it. I had to change out my oil pump last weekend and had the valve cover off. There is no moisture or even any sludge... it is clean as an engine gets... just oil. When I built the engine I put in new factory water pump, oil pump, etc. I have lost water pumps before and know what they sound like when the bearing start to go... I don't hear any noise and I'm just stumped. Any ideas where a quart of water is going every 50 miles??? There is no coolant left and I would love to fill it with coolant again before it gets really cold again... it's been in the 40s but woke up to snow this morning... HELP?? Quote Link to comment
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