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Caterpillar 955L Engine Rebuild delema

Discussion in 'Track Loaders' started by Bryant_955L, Oct 4, 2014.

  1. lantraxco

    lantraxco Senior Member

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    With CAT, the rule is you have to be able to bar the engine over one full turn. I wouldn't think they would repair that block, you will have to ask whoever's selling the long block.
     
  2. Bryant_955L

    Bryant_955L Well-Known Member

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    I know that the motor was over heated. I also noticed there was antifreeze droplets in the oil. My guess is that this liner was leaking. I can tell you the bottom of the radiator was completely filled with dirt. This may have also contributed to over heating. At this point I'm not sure how to proceed. I found a rebuilt motor online but the cost for the core is 7/8 of the total cost. I guess I need to know if my engine is reusable in its current condition.
     
  3. Bryant_955L

    Bryant_955L Well-Known Member

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    Thanks for the help and the response!
     
  4. Nige

    Nige Senior Member

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    I would say your existing block would not qualify for Core Credit given the damage to it. However it would pay you to enquire directly with whoever is selling the long block.

    As someone pointed out earlier that's the bottom liner seal poking out in the photo looking up into the block so that's where your coolant leak was.
     
  5. CDUB

    CDUB Well-Known Member

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    I skimmed through and may have missed something, but what made you want to overhaul the engine in the first place and were the missing pieces of liner and block in the oil pan. I think the answer to those two questions would greatly effect how to proceed. If you aren't going to run it a lot then you may be good just patching it back together.
     
  6. CDUB

    CDUB Well-Known Member

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    I skimmed but not sure how I missed the last three posts.
     
  7. Bryant_955L

    Bryant_955L Well-Known Member

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    The short story, I was a partner in a 955L and I was given an offer to own the whole machine. When I got it back the oil pan was removed along with the oil pump. I asked what had happened because it was running the last time I saw it but no one would give me an answer. I was told by this forum, to tear down the motor because they are easy to rebuild and a very strong. So with little knowledge and a lot of confidence I proceeded. I cleaned out the oil pick-up and there was a lot of filings. The picture is of the #1 cylinder. Anyway, I want to make the right choice and do the right thing especially since I have limited funds.
     
  8. trackdoc

    trackdoc Well-Known Member

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    Metal filings in the pick up pipe !
    First I saw of this in the story.
    That kinda changes everything.
    You can't really consider a patch up job, or any other kind of repair to this block unless you are 100% certain where the filings came from.
    The damage shown in the pics would creat chunks, not filings.
     
  9. Nige

    Nige Senior Member

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    That's why a Reman long block seems an attractive way to go.
    TBH I suspect the filings and smaller particles were probably from a previous failure when the engine was repaired using Cat Parts in #1 as opposed to the IPD parts that were in there before. My strong suspicion is that it was hydraulic locked.
    A Band-Aid repair for this engine at this point of time would not appear to be the way to go. It's either a proper job or don't do it at all.
     
    Last edited: Oct 9, 2014
  10. DoyleX

    DoyleX Senior Member

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  11. Bryant_955L

    Bryant_955L Well-Known Member

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    Once again this forum has come to my rescue. You all have given me great advice. Oh and by the way, I also want to say thank you (the forum) for leading me to "Off Road Equipment". Those guys have been really helpful.
     
  12. kb9tci

    kb9tci Senior Member

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    :iagree:iagree:iagree:iagree
     
  13. Bryant_955L

    Bryant_955L Well-Known Member

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    Well I found me a long block and I am in the process of putting the new motor together. The gasket kit I recieved from "Off Road Equip" seems to have everything. My question to the forum is should you use a gasket sealer or gasket maker to combine the parts? It seems like the old motor didn't use any type of gasket sealer or silicone. What are your thoughts?
     
  14. Cmark

    Cmark Senior Member

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    Generally speaking if the mating faces are flat I would never use gasket sealer. However there are are always possible exceptions. Some which come to mind are;

    If a previous ham-fisted mechanic has used a power sander and rounded off the sealing faces.

    If the D&A calls for it.

    Thin (0.005") paper and steel gaskets that are buried deep in the assembly and would be a mountain of work to redo if they leaked.

    Gaskets with 'jigsaw' type joints will get a little sealer at the joint.

    Where two gaskets meet in a 'T', for example if the timing case gasket butts up to the sump gasket.



    If you do decide to use sealer anywhere, only use just enough as is necessary. Lumps of sealer breaking loose and floating round the oil system can cause untold grief.
     
  15. Bryant_955L

    Bryant_955L Well-Known Member

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    Well I have almost completed my engine rebuild project. I have attached a photo. Motor Install.jpg This has been fun project and this forum has given me a lot of info.
     
  16. kshansen

    kshansen Senior Member

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    Come on get busy we are waiting for first smoke!:drinkup

    Looks so nice and clean will be a shame to take it out and get it dirty!
     
  17. AllDodge

    AllDodge Senior Member

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    Looking good
     
  18. kb9tci

    kb9tci Senior Member

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    I like the red accents!
     
  19. BCOWANWHEELS

    BCOWANWHEELS Well-Known Member

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    WAS THE ENGINE HARD TO PULL ? was everything easy to get to ? is there a safety in holding up the bucket for this kind of maint. ?
    thanks and thats a nice machine. i think a replacement short block was in order and the correct way to go !
    bob
     
  20. kshansen

    kshansen Senior Member

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    I sure hope you did not depend on the hydraulics to hold that bucket up while working on that motor!:eek:

    One failed hose or a bump on the linkage and it's all over!