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Engine Discussion of preventative/corrective maintenance and other technical issues regarding your coach's engine.

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Old 07-20-2010
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Default Blown Manifold Gasket

Martha, J. B. Dogg and I have been at CoachCraft this week getting a new muffler and 90 degree turnout. In addition, I decided to have the motor on my squirrel cage fan replaced. As it seems the fan needed replacing as well. Got that done today.

In checking the muffler for exhaust leakss it was discovered that the gasket on my manifold had deteriorated. That's about to be replaced, but pulling the manifold, I am told is a fairly involved processed. Glad the good folk at CoachCraftl discovered the problem, could have caused major issues later on.

Thanks, Stephen for the new muffler, and Woody do you still want the old squirrel cage motor and fan? Can't vouch for the quality of what's left. But, if you want it, I'll take it with me RATS.
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Old 07-20-2010
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never know what you might be able to use sure bring it@@@@@@
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Old 07-21-2010
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Default genny fan/motor

Quote:
Originally Posted by rwoody View Post
never know what you might be able to use sure bring it@@@@@@

Woody, will do.
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Old 07-21-2010
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Tommy I also had to have my exhaust manifold gaskets replaced on my 94. I wouldn't have known they were leaking if I hadn't had to start the engine from the rear this one time. It was while I was cranking it from the rear start position that I noticed white smoke coming out of a couple of spots around the manifold. This might be a good check for others. Initial startup often has white smoke and if so you may be able to see a leak or even better, confirm you don't have one. Also you can feel the puffs of exhaust with your hands. Just be careful around the fan.
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Old 07-21-2010
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Quote:
Originally Posted by White Hat Guy View Post
In checking the muffler for exhaust leakss it was discovered that the gasket on my manifold had deteriorated. That's about to be replaced, but pulling the manifold, I am told is a fairly involved processed.
nice thing about exhaust manifold leak, is that after it is repaired, you will feel like someone added another turbo to your BB
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Old 07-21-2010
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Default Blown Manifold Gasket

B&C and Rob:

As it has turned out, wasn't the gasket at all. The front bottom corner of the left manifold (as you are looking head on) almost out of sight, was cracked. When the manifold was remover a pie shaped piece the size of a half dollar, fell off. Seems its been cracked for a while, judging from the soot build-up, but I never noticed it and the bird always ran what I thought was perfect. B&C you really think it will run better now?

New manifold ordered and should be in tomorrow.

Now have a new muffler with a 90 degree tip and a new genny squirrel fan and motor.

I'll pay more attention in the futuire, Rob, perhaps starting the engin from the rear for a visual.

Woody, you said you wanted the old squirrel fan and motor, but the tech at CoachCraft said the "hub" whatever the hey that is was ruined in removal. Still want it?
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Old 07-21-2010
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well now that he tore it up by not having the right removal tool no thanks

that is why you had to buy a new assembly ......dang i hate it that folks dont do the right thing in shops thanks just venting!
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Old 07-23-2010
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Quote:
Originally Posted by White Hat Guy View Post
B&C and Rob:
B&C you really think it will run better now?

New manifold ordered and should be in tomorrow.
Ohh Yeah, more power and better fuel economy, depending on the size of the manifold leak.

After replacing my manifold gasket, noticeable increase in power/torque, better fuel economy, and less black smoke from exhaust on acceleration.
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