Little bit OT - exhaust stacks

Submitted: Tuesday, Nov 11, 2008 at 20:26

ThreadID: 63442 Views:2707 Replies:5 FollowUps:1

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Mudripper

This is probably the most stupid question on the site, but as some of you are truckies or ex-truckies, I've noticed a countless number of trucks have mitre cut or straight cut exhaust stacks. What happens when it rains? Is there some type of drain plug or does the water just get evaporated? How about if the truck has been standing in the rain all night?

Please excuse me, but I need to satisfy my curiosity!

Cheers.

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Reply By: Member - RobnJane(VIC) - Tuesday, Nov 11, 2008 at 20:33

Tuesday, Nov 11, 2008 at 20:33

Mudripper,
Some truckies drop a can or bucket over those exhaust stacks of a night, or park under cover, and the rest cop a belch of sooty horrible water all over the place when they start up.
Smartest set-up is an oblique outlet or rain hat, although they rattle a bit after some use.
Rob.

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Reply By: dieselman - Tuesday, Nov 11, 2008 at 20:37

Tuesday, Nov 11, 2008 at 20:37

Mudripper,

Most of the ones I work on have a small hole at the bottom of the muffler/pipe to drain out any water that makes its way inside. Its only a stupid question if you think it is!!

Cheers

Ben

AnswerID: 334726

Reply By: Wherehegon - Tuesday, Nov 11, 2008 at 21:50

Tuesday, Nov 11, 2008 at 21:50

Bit off topic, but I believe some of them also cut them down or on some of the pantek they fold/bend them so they lay over the pantek so as when they go through the tolls its cheaper. Apparantly as you approach the tolls they have sensors on the sides to detect height. Not sure how true this is or it doesnt work anymore I have no idea just what I have heard. Could be all pubtalk for all I know ???? WHG

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Reply By: Member - Doug T (NT) - Tuesday, Nov 11, 2008 at 21:53

Tuesday, Nov 11, 2008 at 21:53

Rain Caps
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Follow Up By: On Patrol & TONI - Wednesday, Nov 12, 2008 at 19:21

Wednesday, Nov 12, 2008 at 19:21

My bus is fitted with the one on the right of pic and is as useful as udders on a bull. Each time a new one was fitted it failed inside one year. Now I have a bent pipe cut off in the vertical position, while this lets in "some rain" a drain in the bottom of the stack lets that out, and any residual moisture is propelled backwards and away from the paintwork.

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