Pictures of the '69 White Western Star

Discussion in 'Trucks [ Eighteen Wheelers ]' started by albertaphil, Apr 6, 2010.

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  1. Apr 7, 2010 #11
    stranger

    stranger Road Train Member

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    Injector O-Rings will many times cause hard starting, and drop fuel into the oil. Smell the dipstick for fuel. You can get white smoke that way also. After you get the miss straightened out, the blowby may clear up some after a few loads.

    Are you sure the miss is the #1 cyl? The main thing is to open up the valve cover and check for the things I mentioned, and also bent or dropped pushrods. A pushrod could have dropped off from running it with the compression release pulled out.
     
    stranger, Apr 7, 2010
    stranger, Apr 7, 2010
    #11
    albertaphil Thanks this.
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  3. Apr 8, 2010 #12
    albertaphil

    albertaphil Bobtail Member

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    Stranger, thanks for the tips. The oil doesn't seem particularly diluted or smell like diesel, but it only ran for 40 minutes with the miss.

    The pushrod thing seems plausible too.

    Can I see what I need to see without removing the engine brake apparatus. Pardon my ignorance here, but I've never seen the inside of a Jake. Do the pushrods go all the way up to the jake, and then the jake modifies the timing of the valves in the head underneath?

    I appreciate your help.

    Phil

    BTW, my infrared thermometer said the exhaust port from #1 cylinder was 100 degrees colder than the rest.
     
    Last edited: Apr 8, 2010
    albertaphil, Apr 8, 2010
    albertaphil, Apr 8, 2010
    #12
  4. Apr 8, 2010 #13
    stranger

    stranger Road Train Member

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    You will be able to see what you need with the jakes on, for the most part. To pull the injector you will need to remove the jake and rocker box, which is a very easy thing to do. It's just five bolts.
     
    Last edited: Apr 8, 2010
    stranger, Apr 8, 2010
    stranger, Apr 8, 2010
    #13
    albertaphil Thanks this.
  5. Apr 8, 2010 #14
    gary in canada

    gary in canada Bobtail Member

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    Mar 21, 2010
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    a 2 stick, that brings back memories, drove a kw with a 5 & 4 years ago and it had rear ends like that one, , pigs went in from the top, owner of the truck called them double reduction rearends
     
    gary in canada, Apr 8, 2010
    gary in canada, Apr 8, 2010
    #14
  7. Apr 9, 2010 #15
    albertaphil

    albertaphil Bobtail Member

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    I don't know what my ratios are. My primary trans is an (short) overdrive, and I'm assuming my auxiliary is direct in 4th. I don't shift the auxiliary between 4th on the main and 5th. That is, it is 4main then up through 2, 3,4 on the aux, and then straight into 5th on the main while staying in 4th on the aux. It is a very close ratio between 4th and 5th on the main. At 100km I'm turning about 1900, which was better than I expected. At least I can do the speed limit on most roads (empty, of course:)

    I have about 10 useful gears, since 1st on the aux is deep reduction and can't be used out on the road, and I would never shift the aux down with the main in 5th.

    My Dad used to haul 10 tons of hay with a '72 international with a 392 gas and a 5 and 4. He said that it was 100 shifts on the 25 miles between home and Cochrane.
     
    albertaphil, Apr 9, 2010
    albertaphil, Apr 9, 2010
    #15
  8. Apr 9, 2010 #16
    albertaphil

    albertaphil Bobtail Member

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    Mar 31, 2010
    Calgary, Alberta
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    Okay, I got the valve cover and Jake off. With the engine running there is a big "puff puff" out the head (I guess) with each compression. Maybe it is coming from down where the pushrods come up through the block. It is really hard to tell.

    All pushrods, rocker arms, injector hold-down plates and screws are intact, as are the valve springs.

    Can I be leaking that much compression from around an injector that is still held in place? I didn't see diesel spewing anywhere.

    What do you all think?

    Is there anything I SHOULD NOT do when it comes to pulling a head or injector or anything else?

    I'll post these questions in a new thread.

    Thanks,
    Phil
     
    albertaphil, Apr 9, 2010
    albertaphil, Apr 9, 2010
    #16
  9. Apr 9, 2010 #17
    stranger

    stranger Road Train Member

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    Spray down the exhaust bolts good with penetrating oil to keep them from breaking. Don't forget to remove the fuel crossover between the heads before removing the head bolts. The head is very easy ro remove. You won't have any trouble. I would guess cracked or gaulded piston. If the liner is Ok, I would hunt up a good used piston and put it in to match the rest. Be sure to keep the pushrods in order and don't put them back in different holes.
     
    stranger, Apr 9, 2010
    stranger, Apr 9, 2010
    #17
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