muncieman Posted July 30, 2021 Share Posted July 30, 2021 So I am new to this and have recently bought a 1965 Mack C85FD fire truck equipped with a ENDTF673 Diesel. The trick has power steering. Both the compressor and power steering are run off the back of the linked by 2 belts. Any how I noticed an oil leak up near the very top of my compressor and it is running down over the power steering pump. I have wiped it off a few times and notice it comes back with the truck off and sitting for days. The leak isn't big but noticeable. I have tried to look for the source, but can really see it because my view is blocked by the exhaust pipe and turbo. There is a line running into the block near there. I can clearly see it is not leaking. Does that air pump have an oil line up high or some type of removable head the could be leak oil out. Thanks ! Quote Link to comment https://www.bigmacktrucks.com/topic/67564-oil-leak/ Share on other sites More sharing options...
67RModel Posted July 30, 2021 Share Posted July 30, 2021 Yes the air compressors are pressure lubricated by engine oil. They also generally have a coolant line going to them too for cooling. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/67564-oil-leak/#findComment-477646 Share on other sites More sharing options...
muncieman Posted July 30, 2021 Author Share Posted July 30, 2021 Ok. Thanks then that is where I'll look. I am assuming that compressor can be rebuilt? Quote Link to comment https://www.bigmacktrucks.com/topic/67564-oil-leak/#findComment-477650 Share on other sites More sharing options...
67RModel Posted July 30, 2021 Share Posted July 30, 2021 Yes. You can buy remanufactured compressors so they can obviously be rebuilt, however I'm not certain if you can buy a parts kit to do it yourself. I'm guessing most likely but someone else on here will know for sure. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/67564-oil-leak/#findComment-477652 Share on other sites More sharing options...
muncieman Posted July 30, 2021 Author Share Posted July 30, 2021 Ok thanks for the info. I'll look into it more Quote Link to comment https://www.bigmacktrucks.com/topic/67564-oil-leak/#findComment-477654 Share on other sites More sharing options...
muncieman Posted July 31, 2021 Author Share Posted July 31, 2021 So I think I finally found the source. It appears like the rear of the injection pump is leaking oil. It looks like there is a panel on the side with bolts thru it and it is leaking there Quote Link to comment https://www.bigmacktrucks.com/topic/67564-oil-leak/#findComment-477710 Share on other sites More sharing options...
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