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tenfive0

Oil pressure and coolant temp.

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I have a CF-600 that has the pump and body removed that has been converted into a flat bed / ramp truck built for hauling vehicles and equipment. I've been working on getting the truck road worthy since its conversion to civilian life. The truck was somewhat neglected before I purchased it since it was retirement from fire service. I most recently changed the oil and coolant and added a block heater. It has a remote oil filter canister and when I changed the oil it had the wrong filter. Been chasing down stupid stuff like blown and worn oil and coolant lines. Trying to get comfortable with the truck to make it reliable and dependable. Next issue will be chasing wires to fix some electrical issues. In the meantime yesterday I used the truck to pick up an air compressor tank for the shop. The round trip was 150 mile the furthest I've driven the truck since I've owned it. It has a ENDT675 engine. I ran the truck up against the governor on the interstate at 66 mph on the flats. It pulled hills and long grades and it did not back down below 60 mph. While pulling long grades the engine temp got up to 200 degrees. Back on the flats and off the throttle hard with the shutters opening and closing the temps stayed a consistent 180. While idling at operating temperature the oil pressure was 45 PSI and up against the governor (full throttle) the oil pressure rises to 70 PSI. What I'm experiencing with the coolant temps and oil pressure would that be considered normal?   

Mack 51.jpg

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Looks OK driver.  Water is a touch high for an unloaded rig but could just be some gunk in the radiator not allowing it to cool to its maximum efficiency.  See how it goes into the summer.  After a few trips, could always change the water filter again.  Cut the old water filter apart and see what sort of crud it has been collecting.  

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that sounds good to me. Most of the E6's I drove hot Idled around 25-30psi and as soon as you touched the throttle it would jump to around 50psi. At high idle it would push around 65psi... sounds to me like its still at the high end of specs and thats a good thing!

as far as temps. my truck was always happy if it maintained 180* and did not go much past 205* on a good pull

 

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Posted (edited)

The truck is equipped with a canister coolant filter as pictured circled in red. I was unable to get a replacement new filter over the counter because they have been discontinued for years but I found a few new unused filters on eBay. I changed the filter while the coolant was completely drained to install a block heater. I removed the entire canister off the engine and cleaned it thoroughly. It was loaded with scum and scale. The removed old filter from the canister appeared the be original. If it was not original it was an original design canvas and tied bag type filter. The new replacement filters I bought on eBay are made of galvanized steel. I had used the truck sparingly prior to the filter and coolant change but I did not notice the engine temp go much above 180 degrees. The coolant change apparently stirred UP the blank because one of the disconnected cooper lines that lead to the removed fire pump auxiliary heat exchanger sprung a leak where there was no leak before. The 200 degree engine temp draw some concern because I never seen the temp go that high before. I just keep an eye on it for now to see where it might lead to or turn up in the future. I might just my ADHD or OCD over reacting to nothing.  

Mack 17A.jpg

Edited by tenfive0
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There is a spin on coolant filter base available from NAPA if you ever want to change to it.  Filters can be had in different charge levels of DCA to combat corrosion that occurs in the water.

NAPA base is FIL 4019.  NAPA water filter 4070 (0 DCA), 4071 (4 DCA), 4072 (6 DCA) for example.

Hopefully you can get the oem air filter box back on the truck or an extension to get your existing filter away from the turbo.  No need to suck in more hot air.

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Posted (edited)

This past Saturday I salvaged an air tube and air box off a 1976 CF-600. I need to get a new air filter, clean it up and recondition the parts before I install it. I have to figure out how to preserve and protect the rubber hose from further deterioration before putting it on the truck.  When I bought the truck the original rubber air tube had fallen off the turbo to the air box and it was laying on the exhaust and burnt beyond use. I put the air filter shown on the truck as a stop gap while I hunted down parts to replace what was damaged. I agree no need to suck hot air but hot air is better then dirty air and running the truck without a filter at all. Baby steps towards bringing the truck back from extinction. Like I said the maintenance was neglected before I purchased the truck. The previous owner was a hack. The truck only has 37,000 original mile on it and I figure it is well worth my efforts to save it. It was kind of rude and ignorant the way it was kept prior to my purchase.

Mack 52.jpg

Edited by tenfive0

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Looks Good!

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