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Oil cooler lines leaking...

Discussion in '1982-Present GM Diesel' started by uglytruk, Feb 5, 2007.

  1. uglytruk

    uglytruk 1/2 ton status

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    So it's cold like hell, and I'm just going to block off the fittings at the filter. What kind of plug do I need? NPT? Huh?

    1 10 07  Oil lines I Pod 002.jpg

    1 10 07  Oil lines I Pod 004.jpg
     
  2. colbystephens

    colbystephens 1 ton status GMOTM Winner

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    i used some of that plumbers tape that goes over the threads, worked really well.
     
  3. uglytruk

    uglytruk 1/2 ton status

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    My rubber hose is leaking, right in da muddle, just want to remove them for the winter, and fix them in the spring. What threads does it use? NPT, so I can just plug it.
    Anybody have a spare set?
     
  4. diesel4me

    diesel4me 1 ton status Premium Member

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    mine look ready to fail too... :(

    Let us know what size plugs you use,if you do this..my hoses are original looking 1982 vintage ones ,and are rusty as hell on the steel portions..so I might need to block my oil cooler off too, soon!..I'd like to have the plugs with me,in case one pops on the road!..

    You could use a loop of hose and clamps, if you saw off the lines where they turn to steel near the block,to join both together..

    I'm not sure myself if simply plugging the holes in the block is the "right" way to do it...not knowing if I'd be blocking the flow of oil to the rest of the engine would make me think twice about just plugging the holes in the block with pipe plugs..I've asked a lot of guys with 6.2's,and the few that did eliminate the oil cooler used a loop of hose to do it--no one can give me a straight answer about just plugging the holes at the block..:doah:

    I'll probably have new hoses made eventually,IF they unscrew from the radiator!..they look pretty crappy,hate to trash the radiator..might end up buying an aftermarket oil cooler instead of the stock one..I've got one stock "cooler"I had to take out of a 6.2 radiator when I scrapped it--its steel,and not very big at all!..I don't think it "cools" much!..looks like it would clog up real easy too...:crazy:
     
  5. colbystephens

    colbystephens 1 ton status GMOTM Winner

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    fwiw, i had new ones made at the caterpillar dealership for like $50 or something.
     
  6. uglytruk

    uglytruk 1/2 ton status

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    Some days we're just plain cheap, and some days...

    ...we're cheap and stupid.
    I had the use of a friends clean heated shop to-day, to change the oil, etc, So I looked at the line, leaking big time, right in da middle, as the ends had been seeping.
    My truk was rustproofed to death, so the metal line-ends are like brand new!
    But, alas, they're $50 bucks brand new from the dealer, and I just could look at them, shame... I did unscrew the rad end, and bent the hose and it crunched, yikes!
    I will find out the deal about plugging threads at the block, I wouldn't loop any garden variety hose with a couple crappy clamps. No sireeeeee :eek1: :mad:
    Maybe a compression fitting on the aluminum lines, they break easy, I know! :D

    1 11 07  Cameo  Oil lines 001.jpg

    1 11 07  Cameo  Oil lines 004.jpg
     
  7. uglytruk

    uglytruk 1/2 ton status

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    Anybody have a good used set fer sale?
     
  8. kennyw

    kennyw N9PHW Premium Member

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    No such thing as a good used set... they all leak after 5-10 years. Call around to Napa, schucks, autozone, etc... they all sell them and this is one place it isn't worth scrimping on. That line goes for good and you could damage the motor.
     
  9. uglytruk

    uglytruk 1/2 ton status

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    ...don't you mean "crimping" on... hahahahahahahahahahah, blaahhhhhh.
     
  10. kennyw

    kennyw N9PHW Premium Member

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    Actually I think I meant skimping...
     
  11. 86dieselburb

    86dieselburb 1/2 ton status

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    Napa seems to have the best deal on the lines, under $40 per line. Vatozone was more like $60. Gonna have to snatch up a set for "just incase". Still got the originals on mine, 350k later and no leaky. But I'm sure that will change now that I said something about them.
     
  12. uglytruk

    uglytruk 1/2 ton status

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    Shoot, and I was just there to buy an oil filter, shucks...
    GM says discontinued for the stand alone oil cooler, they were $50 each, same as bigbox auto partz...
     
  13. cegusman

    cegusman 3/4 ton status

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    I just went to a hydraulic shop hose and got them to make me 2 new ones. $35-40 each
     
  14. uglytruk

    uglytruk 1/2 ton status

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    Did you cut off the old fittings and use the GM pipe?
     
  15. uglytruk

    uglytruk 1/2 ton status

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    So here's what $75 buys at NAPA...

    ...made in China, (what else is new?). The rubber hoses seem thin, and the block end needed a bit of tweaking. Only one fitting had an o-ring, (of 4) and I "lost" one of mine, so re-used a slightly pinched one. But no leaks...

    2 12 07  Oil Cooler Hoses  Sender 001.jpg

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  16. uglytruk

    uglytruk 1/2 ton status

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    Also changed the oil pressure sender...

    Forgot mine at home, so stopped at the big-box auto parts for another, but Advance didn't have it in stock, and Parts America only has #177, (w/lamp). And we looked, crossed, notin'.
    Went and got mine, AA says OPS63, my switch is OPS68, which NAPA, (next stop, no stock, either!) says fits about 22 billion GM's of every size and cylinders. So PA needs to fix their compooper. :confused:
    At least it works better now, but had to twist the angle fitting to get it in, it's a real tight fit, and the aftermarket one is a little larger.... Paid $17 last spring, now it's $28. Hmmmm... :(

    This's how I looked at 9:30 last night...

    2 12 07  Oil Cooler Hoses  Sender 005.jpg

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  17. BKinzey

    BKinzey 1/2 ton status

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    Looks to me like a little bit of torque and that sender is smashed between the blocl & firewall:confused::confused::confused::confused::confused::confused:
     
  18. uglytruk

    uglytruk 1/2 ton status

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    Just da way GM built it, tho the firewall is the heavy rubber stuff, so not too bad. And what torque? I adjusted it close to da block... nice to have a gauge dat works, and no more leaks...
    http://www.youtube.com/watch?v=vPaYZhb80DM no sound?! Sorry...
     

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