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Thread: What have you done to your CUCV today/lately - Part 2

  1. #7991
    4 Star General rustystud's Avatar
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    Quote Originally Posted by shotty View Post
    The only review:

    July 10, 2018
    It is NOT a copper radiator but a plastic/alu radiator. it works but if you want original copper HD radiator, this is NOT it

    I replaced the core 8 years ago. It was an original replacement by "Moraine" . Now they say it is no longer available. I guess it cost to much money to make it with all that copper. My core cost almost $500.00 then. Now who knows how much they would charge for a solid copper radiator.

  2. #7992
    4 Star General cucvrus's Avatar
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    Drove to work with the windows steamed up. The heater core is leaking in the 1987 M1028. Of course it starts leaking when 16* weather is in the forecast. Oh well. No problem. I can change it in an hour. Just keep the new heater hose inside over night. This is a perfect example of poor timing and having an old truck as a daily driver. My new ride is on the train in Philadelphia. Soon. Have a Great Day and a productive weekend. I am planning on it. And the plastic and aluminum radiators are just as good as the brass/copper ones. GM replacements for the CUCV's were plastic tank aluminum. I ran one in my M1028 for 17 years. It is still the same one 6 years after I sold it. They are like anything else. They are only bad when they leak. And the fact that a radiator starts leaking 2 years after it was installed can be many factors. I seen the isolator mounts that are in some CUCV's. The radiators are loose and floppy and the radiator supports and cab mounts are rusted off and that poor radiator is taking all the vibration and beating. Good Luck. Check the entire cab for firm cab mounts and the radiator support for rusty mounts and the support itself. I mean 30+ years. Bound to have issues. Most of the bolts I remove on radiator core supports are rotted and the rubber mounts are doing little or nothing.
    Last edited by cucvrus; 01-11-2019 at 09:34.
    To argue with a person who has renounced the use of reason is like administering medicine to the dead. Thomas Paine: Founding Father Quote.

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    3 Star General TechnoWeenie's Avatar
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    Put my M1031 to use...

    Towed a NG HMMWV off the highway, tried not to laugh at them when they said their fuel gauge read full......

    Dumped a couple gallons in.... disconnected the fuel shutoff solenoid, popped the bleeder valve.... hooked up the slave cable because their batt died.... bled the system.. and got them back on the road....

    Their wrecker was already towing an LMTV and wouldn't be able to get back for 4+ hours.... So, they were happy, if not a little confused...as to why some strange white guy had an army truck... Bahahahhahah


    20190111-151423.jpg


    I taught them how to use a slave cable and how to bleed their fuel system.... They learned not to trust fuel gauges on .mil vehicles... Hahahaha
    The only good cat is a stir-fried cat


    • '84 M934
    • '86 M1031

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  6. #7994
    4 Star General rustystud's Avatar
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    Quote Originally Posted by TechnoWeenie View Post
    Put my M1031 to use...

    Towed a NG HMMWV off the highway, tried not to laugh at them when they said their fuel gauge read full......

    Dumped a couple gallons in.... disconnected the fuel shutoff solenoid, popped the bleeder valve.... hooked up the slave cable because their batt died.... bled the system.. and got them back on the road....

    Their wrecker was already towing an LMTV and wouldn't be able to get back for 4+ hours.... So, they were happy, if not a little confused...as to why some strange white guy had an army truck... Bahahahhahah


    20190111-151423.jpg


    I taught them how to use a slave cable and how to bleed their fuel system.... They learned not to trust fuel gauges on .mil vehicles... Hahahaha
    Good job !

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  8. #7995
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    Two of four seat mounting bolts are broken off... One was like that when I got the truck, I did the second one removing the seat. Both are on the drivers side. Got an easy out in one, and it is turning, but its so tight im afraid of the easy out breaking. Tomorrow is gonna be interesting...

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    4 Star General Keith_J's Avatar
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    Quote Originally Posted by shotty View Post
    Two of four seat mounting bolts are broken off... One was like that when I got the truck, I did the second one removing the seat. Both are on the drivers side. Got an easy out in one, and it is turning, but its so tight im afraid of the easy out breaking. Tomorrow is gonna be interesting...
    Heat is your friend. I have not had a stuck broken bolt beat my TIG welding method. Heat causes the bolt to expand, the stress squeezes the bolt smaller. When it all cools, there is some space to twist. If you don't have the concentrated heat of an arc, drill it out and stab a red hot copper rod into the hole.
    1986 M1031 SECM.
    1985 MEP 002A
    1974 MEP 026C, eventually converting to electric start.

  10. #7997
    4 Star General MarcusOReallyus's Avatar
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    Quote Originally Posted by cucvrus View Post
    the fact that a radiator starts leaking 2 years after it was installed can be many factors.

    Yep. I have a Ford van that was eating radiators for a while. Turned out the mounting points were tweaked by a deer hit, and every new radiator was installed with torque across it. Add some vibration and... a year or two later the tank seams gave up the battle and separated. The cure was to mount the radiator on some pipe insulation so that it is basically 'floating' on the bolts. This removed the torque on the body of the radiator. (As long as the bolts weren't cranked down to the max!)


    Electrolysis can eat radiators, too, and a copper radiator will die from it just as easily as aluminum.
    ---------------------

    Non standard parts in CUCV?
    You offend against the pure OEM design!
    Evaluate self! Reflect and repent!

    Or... maybe not.

    M1028, M101A2

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  12. #7998
    Sergeant emeralcove's Avatar
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    Quote Originally Posted by TGP (IL) View Post
    Changed my radiator also Monday.
    Sent my original to radiator shop for repair/rebuild.
    The aftermarket junk is just that.

    Tom
    I also opted to have the original radiator in my M1009 re-cored even though it was pricey. The original had started seeping, not really leaking but the shop said the core was too far gone to "rod out". The temp light light would flicker on steep long grades in summer heat and the fan clutch would kick in often, after the re-core I have never seen the Temp light come on again, even pulling the major grades on I-5 from So-Cal to Washington in the summer, that was more than 3 years ago and I very happy I went that route. Now I need a winter radiator cover because the heater takes a real long time to do much, like 7 miles to town driving around 50 mph. Not a worry in the big picture.
    Tried to post this five days ago but the Internet went down before I could do so.

  13. #7999
    4 Star General Keith_J's Avatar
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    The stock horn was too plain for me, replacement cheap Hella high low too buzzy. So I splurged on Kleinn dual tone air set. Will use the PTO air system (120 PSI, 5 gallon) which can only be recharged with the truck parked. So I will have to wire in a relay to switch from Hella to Kleinn so I will have horns even without air. Easy circuit.
    1986 M1031 SECM.
    1985 MEP 002A
    1974 MEP 026C, eventually converting to electric start.

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    Yesterday was driver side rear brakes, new wheel cylinder, and bearing repack, did the passenger side a few months ago. Also changed diff fluid and found out one of the plates in the clutch pack for the front posi gave up on life:

    20190113_101733.jpg

    Also got the leaky radiator pulled and block heater installed. Today we're going for injector return lines, new radiator installed, electric fans, paradox cooling kit, and front wheel bearings repacked if i have time...

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