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Someone take a picture for me

Discussion in 'The Garage' started by spoolnaround, Sep 17, 2006.

  1. spoolnaround

    spoolnaround 1/2 ton status

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    I need a pic from the fan looking at the harmonic balancer. I am looking to see what kind of clearance you guys have. This is the second K5 I have had that the HB rubs on the cross member.
     
  2. spoolnaround

    spoolnaround 1/2 ton status

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    This is what I am talking about. If you cant get a camera in just measure it for me and tell me what your spacing is.

    HB1.jpg

    HB2.jpg
     
  3. xpndbl3

    xpndbl3 1/2 ton status

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    sounds like the motor mounts are shot then...mine has plenty of clearance
     
  4. readymix

    readymix 3/4 ton status

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    X2




    ...
     
  5. btolenti

    btolenti 1/2 ton status

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    Not a great pic, but this is shot from right under the radiator shroud... I have a good 1.5" between the crossmember and the HB.

    IMG_0584.jpg
     
  6. spoolnaround

    spoolnaround 1/2 ton status

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    Ive replaced one, I guess I will do the other tomorrow. I did a 203-205 swap a couple of years ago and dont remember the HB dragging prior. It seems to be getting worse. I was thinking maybe that could have been the prob. Thanks for the replys.
     
  7. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Was this motor swapped in from a 2wd truck/car?

    The clam shell that bolts on the block with three bolts is different between 2 and 4wd trucks. The 2wd's are a "shorter" shell and maybe if your motor was swapped in, it lowered the engine slightly causing the rub.
    The fix is to find the correct 4wd shells and install them.
     
  8. dyeager535

    dyeager535 1 ton status Premium Member

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    If everything else is straight, you more than likely have a broken engine crossmember.

    Both trucks I've seen that sat that low were cracked at the crossmember, which makes the engine mounts sag. One was a '74, one was my '81 frame. The later crossmembers were reinforced because of this.

    Look for cracks on the "back" side (towards rear of vehicle) of the crossmember near the frame rails. I can't recall if you can see these with the engine in place from underneath or not.
     
    Last edited: Sep 18, 2006
  9. supersize75k5

    supersize75k5 OrganDonorRacing.com

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    what he said...


    had the same issues, hell I have lots of issues..but this one can be fixed:D
     
  10. spoolnaround

    spoolnaround 1/2 ton status

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    Good info guys. Thanks for the replys. I have been under that thing 50 times looking at stuff and have not seen any cracks but I will check for them. I bought the vehicle with a salvage title (guy donated it to a non profit orginization bla bla so it got a salvage title, so the po stated) so who knows what has been done motor or mount wise. I had a leaky fuel line Sat morning and had a h@#$ of a time trying to change the line it sits so low in the frame rails.
     
  11. pvfjr

    pvfjr 1/2 ton status

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    Don't let this happen to you! Shiney harmonic balancers are very bad, mmmkay?

    [​IMG]
     
  12. MNorby

    MNorby 3/4 ton status Premium Member GMOTM Winner

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    when you did your case did you raise it up in the frame higher? If so the engine pivotted on the mounts and thus pointed balancer down...?
     
  13. 79k20350

    79k20350 3/4 ton status

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    i have a 4wd crossmember if you need one.
     
  14. 79k20350

    79k20350 3/4 ton status

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    Although this makes sence, you would have to pick the back of the t case up alot to make the front move a little... because the front of the motor is so much closer to the pivot point then the tcase....
     
  15. spoolnaround

    spoolnaround 1/2 ton status

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    This is what was on my mind. I figured the 205 sat alot higher on the crossmember. I replaced the motor mounts and I now have appx 1/2 to 3/4 of an inch clearance.
     
  16. MNorby

    MNorby 3/4 ton status Premium Member GMOTM Winner

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    yeah, I bet with worn out motor mounts and the case being raised up it would be easily possible to hit.
     

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