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Old 09-12-2010, 10:50 PM   #1
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insulating hood?

I was talking to a trucker(brother inlaw) and he said that his kenworth has about 3inchs of insulation inside the hood and some on the firewall , this helps a to keep the noise down. I have a t444e, dognose, Im thinking of doing something like that to our bus, anything to help the noise.. any one tryed this? what are your thoughts on this? or is this a waisof time?

tks
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Old 09-13-2010, 09:39 AM   #2
Hex
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Re: insulating hood?

I've been planning on it, but haven't moved in that direction yet, so I'm interested too ...

I really wonder, given that the underside is all open, if insulating anything other than the firewall is really needed ...
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Old 09-13-2010, 09:41 AM   #3
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Re: insulating hood?

Not at all a waste of time. The more precise you can insulate the firewall, the better. The doghouse and trans. cover too. It really does help with the noise and the heat in the Summer, too.
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Old 09-15-2010, 08:11 AM   #4
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Re: insulating hood?

I was wondering also about the heat? I dont really know , I would think that the air flow would still be there, it really shouldnt have to much effect on it, but im not sure, will have to wait and see what the other skoolies say.
also, what would be the best to use for insulating the hood?

on a other note, Im just getting back to doing some work on our bus, took a bit a brake, used it for camping!! what a blast, was good to do it figured out a lot of things , like where to but lights, furnace, where you need outlets etc.

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Old 09-15-2010, 01:56 PM   #5
Hex
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Re: insulating hood?

Now that I'm thinking about it ... It looks like the hood that I've got has 'air channels' that divert the air, then channels it back into the air filter before it hits the engine. Does the heated air make a difference to the performance of the engine, and then will the insulation make a difference to making those 'channels' cooler?
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Old 09-22-2010, 11:40 AM   #6
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Re: insulating hood?

hey Hex, on a diesel engine manufacturers try for an intake temp of 100 F for optimine performance. Insulating the hood should not affect the intake air temp negatively. Remember operator comfort helps decrease fatigue when driving long distances so any noise/heat reduction you can do will help out on those long drives, this also gives us a reason to get a really comofy seat for the driver I mean how can she argue with "but honey its for your safety" . Good luck

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Old 09-24-2010, 11:07 AM   #7
Hex
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Re: insulating hood?

Cool! Thanks, Chuck. Good to know ...
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