massive oil leak after water pump and t stat fix
#1
06-21-2015, 08:22 PM
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massive oil leak after water pump and t stat fix
Hey fellas so I just did a water pump upper and lower hoses and thermostat on my truck. I fired it up was great until 170 degrees then I saw a leak and I moved the truck and it was a big puddle of oil. Moved it back and in 5 min leaked 2 quarts. I had a leak by the lift pump and by the water pump from oil which I brake cleaned off when I changed the water pump and now somewhere that I can't see is leaking like a sive. Any ideas?
#2
06-21-2015, 09:26 PM
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Did you make sure to put all the bolts back in the right place on the water pump, and did you use thread sealant on the ones that need it?
There are a couple of bolts on the pump that go through an oil galley. You'll know which ones because the threads will have been wet with oil. These need some sort of thread sealant when installed to eliminate leaks. It's also crucial to get the bolts in the right spots since some are longer than others.
Mike
There are a couple of bolts on the pump that go through an oil galley. You'll know which ones because the threads will have been wet with oil. These need some sort of thread sealant when installed to eliminate leaks. It's also crucial to get the bolts in the right spots since some are longer than others.
Mike
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06-21-2015, 09:36 PM
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#6
06-22-2015, 08:27 AM
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I tried Googling it for you, but couldn't find a visual showing EXACTLY which one. Push come to shove, a little thread sealant on all of them wouldn't hurt, I guess.
Mike
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06-22-2015, 09:09 AM
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06-22-2015, 03:24 PM
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#9
06-22-2015, 05:56 PM
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All fan clutch nuts are LHT, the Serpentine belt/Fan Clutch is jsut as much a PITA as the V Belts. Your going to need a special wrench set to get the nut off.
FWIW, the Water Pump design was changed. In 88/89?? IF You get a new casting, the bolts are all the same. If You get an new casting, the upper bolt bosses are longer and You don't need to worry about the bolts hitting the IP gear. The Old casting requires the proper bolts in the upper mounting holes, or they will hit the IP gear. See Pic Link Below.
FWIW, the Water Pump design was changed. In 88/89?? IF You get a new casting, the bolts are all the same. If You get an new casting, the upper bolt bosses are longer and You don't need to worry about the bolts hitting the IP gear. The Old casting requires the proper bolts in the upper mounting holes, or they will hit the IP gear. See Pic Link Below.
#11
06-23-2015, 07:45 PM
Use engine degreaser and clean off motor, then check again for leaks. Gaskets from what I know for how old these are tend to leak due to age. Once I go and rebuild mine im expecting every gasket is going to be done. Also having the oil cap off can be a culprit. Seen that a few times with customer cars. But it make a mess underneath the hood. Keep us posted.
#12
06-23-2015, 09:40 PM
#13
06-23-2015, 10:21 PM
#14
06-24-2015, 09:03 AM
#15
10-28-2021, 09:24 AM
What was the cause of the leak?
I am having this issue. What was the ultimate fix?
Hey fellas so I just did a water pump upper and lower hoses and thermostat on my truck. I fired it up was great until 170 degrees then I saw a leak and I moved the truck and it was a big puddle of oil. Moved it back and in 5 min leaked 2 quarts. I had a leak by the lift pump and by the water pump from oil which I brake cleaned off when I changed the water pump and now somewhere that I can't see is leaking like a sive. Any ideas?
