1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Backfired, died

Discussion in 'Early CJ5 and CJ6 Tech' started by sparky, Feb 18, 2006.

Page 3 of 6
  1. Feb 25, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    Guess I could check the one on Eugene's distributor. It might be the same as well. But if you had a DUI to donate to the cause. ;)
     
    sparky, Feb 25, 2006
    #41
  2. Feb 25, 2006
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,360
    Sparky, I have this if you want it. It is an EF distributer, but the pickup coil is an OF, brand new, 4 pin module, brand new, and the drive gear is in good shape... There is some surface rust from this thing sitting in the garage for several years. The shaft and bushings are in good shape, too, just that the tone ring is for an EF...
     
    Patrick, Feb 25, 2006
    #42
  3. Feb 25, 2006
    MOP

    MOP Active Member

    Pullman, WA
    Joined:
    Sep 25, 2003
    Messages:
    1,131
    i'll be there, with the delco in-hand in case it is the same. As for DUI's, well maybe i'll lock my hood, or sleep with it under my pillow ;)
     
    MOP, Feb 25, 2006
    #43
  4. Feb 25, 2006
    WYOMIKE

    WYOMIKE Oct 1971 pic

    Parkman, Wyoming
    Joined:
    Jan 22, 2003
    Messages:
    685
    :( Have my finger crossed for you Sparky.
    I am not sure on these type of dist. but in my work, (1000-5000HP units) if something goes wrong with the dist., it shear's the pin on the gear! Hope that is not the case on yours sense it did not shear the gear pin
     
    WYOMIKE, Feb 25, 2006
    #44
  5. Feb 25, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    I'll see if MOP's DUI, err Delco is the same gear first. ;)
     
    sparky, Feb 25, 2006
    #45
  6. Feb 26, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    It occurred to me last nite that the oil pump was extremely difficult to turn. I figured since it was new when put in the timing chain that it was tight and would loosen up.

    Then this AM I remembered my oil pressure gauge (mechanical) shows a reading of 40 PSI or so and the Jeep isn't running...

    Thinking I need to investigate the oil pump.
     
    sparky, Feb 26, 2006
    #46
  7. Feb 26, 2006
    jhuey

    jhuey Michigan Jeeper!

    Indian River...
    Joined:
    Apr 9, 2004
    Messages:
    415
    I agree with the direction your taking, the cam gear should be ok (as stated before cam gear being harder). The metal floating around is a concern, but unless you are in position to pull it and rebuild it there are some steps you can take. Chances are most of the filings collected up front and in the pan, send a magnet on a stick down, kinda looks like a pen that telescopes, and get as much as you can down the distributer hole. With the pan drain open flush down the distributer hole using mineral spirits, or diesel. After that, complete a oil change and run it until up to temp and drain and change your oil again (filter too!) I have seen this in the marine field a few times, I only rebuilt one due this, two of the others are still in operation, can't say leaving it alone is good but if you flush really good and stay on top of filter changes it should be ok. I found the cause to be the bushing in the bottom of the distributer, the driving gear tries to push the driven gear away, after time and varying speed it trashes the bushing and then the gear. Make sure the replacement distributer has minimal play in the lower bushing before sending it down ;) My .02
     
    jhuey, Feb 26, 2006
    #47
  8. Feb 26, 2006
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,360
    Yeah, check the oil pump. As far as the O/P gauge reading 40 with the motor off, I'm not sure thats any indication of a faulty pump. I mean, I can't see it holding pressure without turning.... I guess if you loosen one of the capillary fittings and watch for the gauge to drop you'd know..
     
    Patrick, Feb 26, 2006
    #48
  9. Feb 26, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    Just wondering, it's not done that before.

    But definitely checking the pump since it was so tight to begin with. MOP's we were able to turn with a screw driver when we installed his HEI. Mine I couldn't hardly budge with the screwdriver. Any ideas?
     
    sparky, Feb 26, 2006
    #49
  10. Feb 26, 2006
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,360
    Refresh my memory..... Did you do anything with the oil pump when you did the timing chain? Not that it matters I guess. It should turn fairly easily, like you said Mops was..... Dunno, I think you need to check that out and then go from there...
     
    Patrick, Feb 26, 2006
    #50
  11. Feb 26, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    Put in a new Melling Hi Vol. while I was in there.
     
    sparky, Feb 26, 2006
    #51
  12. Feb 26, 2006
    panzer

    panzer Super Mod Staff Member

    Columbus, OH
    Joined:
    Dec 9, 2003
    Messages:
    1,245
    Just a thought, about the reading of 40# I wounder if there is a "clog"
    in the line from metal shavings. I'm whincing as I type this........... I hope
    that's not the issue. Again good luck Sparky.
     
    panzer, Feb 26, 2006
    #52
  13. Feb 26, 2006
    52-willy

    52-willy New Member

    claremont nh
    Joined:
    Jan 25, 2006
    Messages:
    26
    the new oil pump is a very good idea the fact that you cant turn it with a screwdriver sounds bad to me all the times ive changed intakes on sbc's the pump turned easy with a screwdriver
     
    52-willy, Feb 26, 2006
    #53
  14. Feb 26, 2006
    mruta

    mruta I drank with Billy!

    Downers Grove, IL
    Joined:
    Sep 22, 2002
    Messages:
    422

    When I rebuilt my 225 (and it's oil pump), somehow I managed to put a second piston in the pressure relief portion of the pump without removing the first one :oops: . I noticed exactly what you did without really thinking about it, it was hard to turn. After I started it up, it blew the seal out of the oil filter. Pressure was waaaaay too high.
     
    mruta, Feb 26, 2006
    #54
  15. Feb 26, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    It is a new oil pump in November when I did the timing chain. I haven't checked it yet but I'm suspicious since it was tight when I put it together initially. I figured it'd loosen up after running a bit.
     
    sparky, Feb 26, 2006
    #55
  16. Feb 26, 2006
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
    Messages:
    5,349
    Just a warning after what Sparky wrote. If you install a Melling hi-volume kit make sure to clearance the kit, by removing all burrs and use some blueing to check clearances. My kit was tight, way to tight, you should be able to turn the unit by hand before it is put back on the motor. I ened up removing burrs and doing some lite stoning on the impellers as they were to tight and didn't have enough clearance. Also check to se that the shaft turns freely in the hole in the timing cover.
     
    Mcruff, Feb 26, 2006
    #56
  17. Feb 26, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    Now you tell me. :rofl: ;)

    And if we don't have these tools at our disposal?

    I was just gonna pull it out and see if I could clean it up with the Dremel a bit. Bad idea? I did use the clearance kit...
     
    sparky, Feb 26, 2006
    #57
  18. Feb 26, 2006
    MOP

    MOP Active Member

    Pullman, WA
    Joined:
    Sep 25, 2003
    Messages:
    1,131
    I got the Delco put in my JEEP. Let me know when you want me to come over.
     
    MOP, Feb 26, 2006
    #58
  19. Feb 26, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    Whenever you want to stop by, I've got the oil pump out and am looking at it. I've got the distributor out of Eugene, pretty sure I can use that gear too.

    Just need to check the cam gear and drop the oil pan and clean it up. Then figure out what's up with this oil pump.

    Mcruff, I don't see any burrs, did you clean the gears themselves? They look like they're meshing fine. The shaft is a bit rough maybe though and kinda hard to get out. But it seems to me that when I tightened the cover on the oil pump was when it got really tight like the clearance was top to bottom, not side to side. Thicker gasket?
     
    sparky, Feb 26, 2006
    #59
  20. Feb 26, 2006
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    I think Mike was referring to clearancing the ends of the gears within the pump housing. This can be done pretty easily with a piece of flat plate glass, a piece of #800 or #1000 grit wet-or-dry sandpaper and some light oil such as WD-40. Lay the paper on the glass grit side up and put a thin coat of oil on the paper. Then you work the end of the gear around and around in a figure-8 pattern to grind away tiny bits of metal until the gears will turn freely in the pump housing.

    Clear as mud?
     
    w3srl, Feb 26, 2006
    #60
Page 3 of 6
New Posts