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Valve seals

joecool911
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Cowboy

Cowboy

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I'd suggest to bring each set of pistons to top dead center, way to easy to drop a valve using the air pressure trick.  because there are running mates, you can do them in sets, ie, 1&6, 2&5 and 3&4.

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joecool911

joecool911

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I would remove the injectors anyway to make SURE the piston is a TDC. I just use a long zip tie in the hole and rotate till she stops coming up

But then you're 3/4 the way towards removing the head. But I suppose that at 200k miles it wouldn't hurt to change head, intake and exhaust gaskets.

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joecool911

joecool911

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i have a write up and video in the article section showing how to do the seals (with the head off) but its the same as if the piston was tdc

I watched your video. Looks like you'd need to have the piston in contact with the valves to do it. Sounds like they were contacting the workbench.

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Cowboy

Cowboy

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If you want to make sure they are at TDC, then just watch for valve overlap and do its mate.  So if #6 is on valve overlap, you know #1 is just about exact TDC, and plenty close enough for dropping the valves.  Just take your time and it will be easy.  Worst case, you drop a valve in and have to pull the head.

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TFaoro

TFaoro

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If you want to make sure they are at TDC, then just watch for valve overlap and do its mate.  So if #6 is on valve overlap, you know #1 is just about exact TDC, and plenty close enough for dropping the valves.  Just take your time and it will be easy.  Worst case, you drop a valve in and have to pull the head.

I like to be sure...

 

 

But then you're 3/4 the way towards removing the head. But I suppose that at 200k miles it wouldn't hurt to change head, intake and exhaust gaskets.

Not really. Removing the head is a pita! 

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CUMMINSDIESELPWR

CUMMINSDIESELPWR

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I watched your video. Looks like you'd need to have the piston in contact with the valves to do it. Sounds like they were contacting the workbench.

teah they were when i tapped the keepers loose but it didnt take much, not enough to damage anything, i would be confident doing it with the head on as well, just take your time

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CSM

CSM

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I'd really like to pull and inspect my motor and replace the seals. And mabe... gasp... p pump it.

I don't like doing that much stuff in the body. I wish these trucks has swing fenders like the old 60s dodge L series semis.

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