Adjust valves now or wait?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by BoostedTS, Dec 10, 2013.

  1. JohnP3

    JohnP3 Road Train Member

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    Feb 21, 2010
    Rock Creek B.C. Canada
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    To adjust the valves I have a 1/2 drive 9/16 socket welded into a cheap wrench. I have a 1/4 drive extension with a socket that fits the adjuster on it, the extention is from Craftsman and has the lock on it It is on a flex handle You put the socket on the lock nut and put the 1/4 drive threw the opening unlock the nut and adjust the valve. It takes no time to adjust the valves, and injectors, do them all as even as you can that is important to getting a smooth idle. When ever you do any job do it the best you can or leave it alone. I use a dial indicator to adjust the Jakes.
    I have three wrenches for setting different engine. buying from a cheap tool store they are less than $10.00 each. Works for me!
    Just a thought!
     
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  3. jameslawton

    jameslawton Light Load Member

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    May 1, 2013
    Tulsa OK
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    I would suggest u run the over head and reseal flywheel housing will save alot of time since its already out easy to do they tend to leak and rear mains leak after sitting 6 months or so
     
  4. BoostedTS

    BoostedTS Bobtail Member

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    Oct 10, 2011
    Sturgis, MI
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    Here is a little update. Thanks for all the advice. I adjusted the valves, cleaned up and reinstalled the valve cover with a new gasket (most of the oil leaks seem to start there on this engine), changed the rod bearings, inspected 1 lower main bearing which looked good, and cleaned up the oil pan and the oil pickup tube from the old engine because the other ones were damaged. Today I will be resealing the bellhousing, installing the rear main seal, and oil pan.

    Does anybody have any suggestions on installing the rear main seal without an installer tool?

    Also, does anybody have any suggestions to reprime the oil? What I have done in previous cases where I couldn't spin the oil pump to prime was to just spin the engine with the starter for a minute or two without allowing the engine to fire. Is this the best way to do it here or is there a better way?
     
  5. BoostedTS

    BoostedTS Bobtail Member

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    Oct 10, 2011
    Sturgis, MI
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    Due to lack of a better suggestion, I'm going to try to make an adaptor to backfeed oil through the port that normally goes to my oil pressure gauge to prime the oil. Has anybody else tried doing this? If so, how did it work out? The shop I'm working in pumps oil out of a big tank, so it will be pressurized and not gravity fed. I'm not sure if just cranking it over with the starter to prime it will be very effective.
     
  6. wore out

    wore out Numbered Classic

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    CHASIN THE DEVIL'S HERD
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    We just crank them with the starter if the system is right it will prime easily. The thing about priming it the way you are thinking is risk of contaminination a small hole is easily stopped up and flow will take the path of least resistance or to sump doing it that way. You should have pressure on the gauge in a few seconds of turning the eng with the starter, at that point your primed.
     
  7. JohnP3

    JohnP3 Road Train Member

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    Rock Creek B.C. Canada
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    I use to prime the engine threw the oil feed for the turbo, we had a preasure oil feed system so I would put 36 litres in that way then use a bottle to lube the turbo assemble it and it was good to go. If you have rebuilt it you may have to add more oil. I also replaced the oil filters after a day or two of working.
    Just a thought!
     
  8. Heavyd

    Heavyd Road Train Member

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    It will probably just crank long enough to get the fuel primed up alone that will be enough time to get some oil moving around.
     
  9. JohnP3

    JohnP3 Road Train Member

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    Feb 21, 2010
    Rock Creek B.C. Canada
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    For the fuel system I have a electric fuel pump, that I hook in at the fuel pump inlet and let it pump while I am working on the unit as soon as I have the fuel system completed. then I hook it to the pump outlet and let it run, I have an air tank I fill 1/2 full of fuel. The adapter I use on the fuel pump has an air coupling, I disconnect the electric pump and use 120 lbs air to flush the system, with fuel.
    I do not believe in running any part dry, when planning and a little ingenuity the system is ready to go. 3 seconds and the unit has oil preasure and starts.
    I also put the batterys on charge and before I bring it in I wash off the batteries, if corrosion I clean the connections, and I will independently charge each battery then leave then disconnected to check the voltage. the shop I worked at had one of those computerized battery tester, 10 seconds and you know their condition.
    rebuilding an engine is preparation and doing the complete job so when the customer leaves he does not come back with a problem, If you burn out his starter, and it fails a week later he will not be happy, If the batteries are dead and the alternator fails because it overheated he will not be happy.
    The little things make the difference between a Mechanic and a parts changer.
    If you do a lot of Cats especially the little air tank full of fuel, as a primer is great. Most every engine that has a compucheck fitting, if the unit is run out of fuel 30 seconds and it is ready to go.
    Just a thought!
     
  10. wore out

    wore out Numbered Classic

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    CHASIN THE DEVIL'S HERD
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    You are right about a mechanic, a technician, and a parts changer. I have built a lot of engines never had one fail, but when working on a unit failure anayalsis is a big part of the equation so it doesn't happen again. We all learn every day if we ever stop we are done. Contamination is the biggest cause of come backs along with not following proper procedure in the repair industry.
     
  11. BoostedTS

    BoostedTS Bobtail Member

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    Oct 10, 2011
    Sturgis, MI
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    I wasn't too concerned with priming the fuel system. My truck has always been easy to prime the fuel.

    Because of the potential for the contamination, I decided against feeding oil through the pressure port and primed it by cranking the engine with the starter with the key off so it wouldn't start. It did Build pressure quicker than I initially thought it would.

    I have been replacing a lot of stuff that had to be removed anyway(cac, radiator, turbo, etc.). According to the KW dealer I've been ordering parts through, paccar discontinued the left charge pipe. The paint on mine was flaking off the inside, so I had a friend of mine fab me up one real quick. It turned out nicer than I expected it to.

    [​IMG]

    The good news is that I finally got to drive the truck tonight and pretty much everything seems to be working as it should except I may need to change the clutch switch, but it had been acting up for a while anyway. There are a few minor issues, but for the most part I will have it back to work real soon. Hopefully I'll get some trouble free miles on the truck for a little while. Thanks for the advice.
     
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