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Old 11-20-2012, 05:25 PM   #1 (permalink)
Kartoon
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problems with block fittings for oil cooler lines leaking

I have the PMD cable oil cooler kit on the suburban with the SS lines. I have been having a hard time getting the block fittings to not leak. I have taken them off twice to re tighten the fittings and everything was fine but today I noticed oil on the ground and traced it back to the upper fitting on the block.

What do you guys use on the threads and how much do you crank them around. I must have stopped turning it last time because I figured I couldnt get it to point towards the front of the engine but it is still leaking now. Would love to stop leaving stains every where I park.
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Old 11-20-2012, 05:47 PM   #2 (permalink)
2010flhp
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I turned mine one full turn past the point they became difficult to turn. It wasn't easy. I used TFE paste on the treads. I swear to God that Houdini himself would have a tough time attaching the lines to the fittings. I used every kind of 22mm wrench I could find.

Leaks at the cooler were another story. It was difficult to get the hoses pointed the right way with all the elbows and fittings that come with the kit. Start at the cooler and tighten things from there to the lines. Hold the cooler fittings with two wrenches to avoid twisting the cooler. Be sure to remove O-rings from the cooler before putting new lines on.

Anywhere the stainless braided line touches metal (engine mounts etc) I wrapped in old radiator hose.
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Last edited by 2010flhp; 11-20-2012 at 05:51 PM. Reason: add
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Old 11-20-2012, 06:55 PM   #3 (permalink)
Graplr
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Did you use teflon tape on the block fittings?
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1994 Chev Suburban K2500 6.5 244k miles
-Diamond Eye Exhaust with muffler & 2.5" FloPro Crossover Pipe
-LubSpec Oil Cooler Kit
-Webasto Diesel Coolant Heater w/Remote Start
-Remote PMD on Heat Sync in bumper, HID Headlights w/new lenses
-Newer IP, New Bosch Injectors, New Bosch Duraterm Glow Plugs, Newer Radiator
-PYO Aluminum Wheels, Bridgestone Dueller II A/T tires
-Boost, Fuel Pressure, EGT Gauges, K47 intake w/Amsoil EaA 112 Air Filter
-Rebuilt Transmission @ 227k miles
-LP Relay Mod, High Idle Switch Mod, Glow Plug Override Mod, Battery Terminal Mod
-New OPS, Batteries, Brakes, Starter, Alternator, Fuel Lines, Lift Pump, Vacuum Pump
-GMTD Scan Tech
-599 Block from the factory
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Old 11-20-2012, 06:59 PM   #4 (permalink)
Kartoon
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I did the first time. the second time I used the paste. one line the paste has squeezed out onto the outside and the one that is leaking I can't see any paste, I guess I didn't put enough on.
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