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7.3 powerstroke oil leak

Discussion in '7.3L Powerstroke Diesels' started by trythis, Oct 24, 2019.

  1. trythis

    trythis Full Access Member

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    Now the issue I am dealing with which is come on with the cold weather is smoking on a cold start it'll idle for half an hour and still have a steady stream of smoke blue. Would anyone think that could be valve guide seals and how hard are those to change? And again thank you for your interest and comments this has been very helpful.

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  2. 79jasper

    79jasper Chickenhawk

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    I got rid of the haze on mine with a 203° thermostat. Just wasn't building heat.

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  3. trythis

    trythis Full Access Member

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    I can see that after the engine is warmed up but what about cold start smoke I'll try to post a video of my cold start it's pretty drastic



    Show me what your truck smokes like

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  4. 79jasper

    79jasper Chickenhawk

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    I would say that is not that bad.
    You could have a dead glowplug or two, possibly a few worn injectors.

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  5. trythis

    trythis Full Access Member

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    I do know that I have four dead glow plugs do the good ones continue to heat after the truck starts after the light goes off?

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  6. greenskeeper

    greenskeeper Full Access Member

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    Yes they continue to heat. A good mod is to wire an LED light from the GP side of the relay into the cab....that way you can see when your GPs are being powered. I've also added a switch inside the cab next the the LED so I can manually disable the glow plugs during "hot" starts or times when they simply aren't needed to save wear and tear.

    That smoke isn't bad at all for only having 4 working glow plugs. The cylinders without the working glow plugs don't have enough heat for complete combustion, hence the smoke until the cylinders warm up on their own.

    I'd also suggest upgrading to the stancor relay if you've still got the original small relay.
     
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  7. trythis

    trythis Full Access Member

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    Okay so I ordered the glow plugs relay iañd thermostat it might be a while but when I get them installed I will make another video thanks for the advice sounds real good


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