1988 turbo issues

Discussion in 'Western Star Forum' started by n4ane, Nov 19, 2020.

  1. n4ane

    n4ane Bobtail Member

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    Unfortunately I have my tag but you can't read the serial number the number on the back of thr block is 11317957 20201121_152431.jpg
     
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  3. Dino soar

    Dino soar Road Train Member

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    Well everyone is correct in what they are saying, but you're talking about engines that are pretty old now.

    Sometimes that calibration code is incorrect on the pump because sometimes people go into them and work on them without changing that. Sometimes they put a pump on that was from something else.

    I had a 400 big cam but that tag said it was a 290. Originally it was. But that one was made into a fire-breathing 400 Beast.

    Your serial number will tell you what that engine originally was, but that engine could have been rebuilt several times by now and could have been built to something different.

    And that also may not even be the original engine to that truck.

    If that turbo ran right and the truck pulled right and everything did what it was supposed to do, why would you not just buy the exact same Turbo with the numbers that you have?
     
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  4. OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    Tag on my engine says it’s a 315.

    Tag on my pump says it’s a 475 twin turbo.

    Tag on my turbo says it’s a 525 N14.

    It can be confusing for sure....,
     
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  5. Dino soar

    Dino soar Road Train Member

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    If you really think it's a mystery that you have to solve, then you have to check the serial number on the side of the block, and compare that to the number that's on the PT pump.

    Then you have to go to the injectors and see if you can read the number. I'm not sure if you can read it or if you have to pull the injector out.

    If all of that matches, then that turbo number should also match.

    Now you still don't know what compression the Pistons are or what camshaft is in it, but most likely if everything matches the CPL from the serial number then that probably is what it is.

    I will say that if you get that figured out and you can tell what exact CPL that it is, that will help you if you ever have to get the pump rebuilt because there are all kinds of different calibration codes for those engines, and it is very specific.
     
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  6. OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    Yes injector has to come out, numbers are between the O-rings.

    That’s why I was hoping the block serial number, and pump serial number would match. He said he would like to know 100% what the engine is.... needless to say we are in the dark right now lol....
     
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  7. Dino soar

    Dino soar Road Train Member

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    I get what you are saying.

    I went back and reread it and he said the turbo doesn't match.

    I am curious though if he does not have the CPL number how does he know the turbo does not match?
     
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  8. OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    Welcome to the dark room....? :)
     
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  9. Dino soar

    Dino soar Road Train Member

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    On that note I wonder if the CPL tag is there...

    Dark room indeed!
     
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  10. OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    Not sure, hope the OP finds it and is able to retrieve some numbers....
     
  11. Dino soar

    Dino soar Road Train Member

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    Well not to derail the thread, but I really hope that it will be many years before we have governmental interference that they outlaw these engines.

    Putting that engine into my truck, having that nice big cam engine in my nice tractor-trailer, has just been the most absolute greatest thing ever, and I could not be any happier with it, nor do I have any desire for anything else.

    I have nothing but praise, admiration, and appreciation for it.

    It's the best thing I ever did.

    20190314_180917.jpg 20190314_204801.jpg
     

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