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PT & WB (Twin Axle Pusher Unique Issues) If you have a unique issue with your PT or WB model coach and it can't be answered in one of the other forums here, then this is where you can list it....list your PT Parts here too.

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  #21  
Old 02-09-2011
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alvahall alvahall is offline
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Well, we're sitting at W.W. Williams in Greer, SC. They are a Detroit Diesel service center, so I hope they are familiar with the 8V92. We didn't get here until 6 PM, so only a service writer and the second shift mechanics were here. The shop is packed and he didn't think they could even look at it until late tomorrow or even Friday, so we're looking at a long and expensive layover. Thanks for the well wishes and advice.
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  #22  
Old 02-09-2011
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I leave for a couple of hours and all heck breaks loose
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  #23  
Old 02-09-2011
Jim Harvie Jim Harvie is offline
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John/Nancy.
I am sorry for your troubles, but what has already been mentioned, you did the right thing by shutting down the engine, and then asking questions. It would have been a lot worse if you had continued under any circumstances.
Let me ask you. Did you check the coolant level because it was running hot?
If you can tell us , this may help us narrow down the problem and the damage before they get into it.
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  #24  
Old 02-09-2011
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The engine never got hot, but we were driving in 20 degree weather and running the engine heat. After several comfortable hours, I noticed it was getting cold inside. That's when I stopped to check the coolant.
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  #25  
Old 02-10-2011
Jim Harvie Jim Harvie is offline
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Ok.
When the exhust manifolds come off, you should have your answer.
The head gaskets on those are not like the type on a car. They are in pieces. There are what are called 'Fire Rings", which are metal rings that seal the compression from the cylinder and sit on top of the liner. then, there are rubber washers that look like a faucet washer that seal the coolant, and the oil that feeds the head. Then there is a "quad Ring" that goes around the outer part of the head that seals the return oil that dumps back into the sump.
Where there is that much coolant in the oil, I will guess that a head may have cracked between the valves, and when they take off the manifolds, one or more ports will be a light tan/white color, rather than a dark black/brown color due to the coolant entering the cylinder, so the one that is tan is the problem cylinder.
If they are all the same color that would tell me the coolant leak could be from under torqueing the cylinder heads, and it could be comming from one of the rubber faucet washer looking seals. It could also be a leaking liner .. leaking from the "O" Rings, or from pitting.
Did you check the coolant level before you left? If not the leak could be small and the oil pan could have filled with coolant over time, while the bus was sitting.
Notice any power loss?
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  #26  
Old 02-10-2011
Jim Harvie Jim Harvie is offline
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One more thing... any white smoke out of the exhust pipe?
If not, I would lean to the later guess.. under torqued cylinder head.
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  #27  
Old 02-10-2011
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Quote:
Originally Posted by Randy Dupree View Post
You are kidding,right?
Please say yes.
DO NOT DO THIS TO ANY ENGINE.
nope...Not kidding...

Well I might have tried it if I had
A. not too much to loose (I would rather have a used motor or completely rebuilt) than something pieced back together... especially after a dramatic event such as this... I simply would not have the same faith in a repair that might have missed other heat damaged seals...or gaskets. What would you pay for a motor in this condition? That is how much I would gamble...
B. a cool climate to run in
C. Extreme situation that required immediate action.


Oil is used to cool all kinds of things.... it doesn't cool quite as well as antifreeze but it never boils over either. You would have to guage your driving speed on the temp gauge...
It might require some coordinated driving skills....

It seems to cool the pistons fine on the 3208 turbo models...
I guess I'll have to try it out some day to vindicate myself...

I bet I could retrofit an engine with oil cooling and drive it 1000 miles with no ill effects...in 20 degree weather... at a limp along speed of 45mph..
After I think on it for a while longer I might even put a wager on it...?

But on second thought those Detroits are pretty fragile...
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  #28  
Old 02-10-2011
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Quote:
Originally Posted by Christian View Post
nope...Not kidding...

Well I might have tried it if I had
A. not too much to loose (I would rather have a used motor or completely rebuilt) than something pieced back together... especially after a dramatic event such as this... I simply would not have the same faith in a repair that might have missed other heat damaged seals...or gaskets. What would you pay for a motor in this condition? That is how much I would gamble...
B. a cool climate to run in
C. Extreme situation that required immediate action.


Oil is used to cool all kinds of things.... it doesn't cool quite as well as antifreeze but it never boils over either. You would have to guage your driving speed on the temp gauge...
It might require some coordinated driving skills....

It seems to cool the pistons fine on the 3208 turbo models...
I guess I'll have to try it out some day to vindicate myself...

I bet I could retrofit an engine with oil cooling and drive it 1000 miles with no ill effects...in 20 degree weather... at a limp along speed of 45mph..
After I think on it for a while longer I might even put a wager on it...?

But on second thought those Detroits are pretty fragile...
Like Randy, I hope you kidding.
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  #29  
Old 02-10-2011
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Quote:
Originally Posted by Rick View Post
Like Randy, I hope you kidding.
Uh UH!
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  #30  
Old 02-10-2011
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Quote:
Originally Posted by Christian View Post
Uh UH!
What would you pay to see a 3208 wonderbird pull up to your house cooled with oil?

Obviously I would pay for (new motor) if it didn't make it... and the shame!

Make it worth my while and I think I can prove it.

If it can't be done, pony up you have nothing to loose!
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Last edited by Christian; 02-10-2011 at 02:32 AM.
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