imacrazy

[imacrazy]

Has anyone run there manifold heater tube up through the floor board, and if so how did you do it?

thanks so much

Bill

[MikeK]

There are several styles of manifold heater that were designed for this. The outlets face downward, not at the firewall. Here's one I found on eBay:

[captndan]

It seems that if you got a manifold leak you could end up with carbon monoxide poisoning.

[MikeK]

Originally Posted by captndan

It seems that if you got a manifold leak you could end up with carbon monoxide poisoning.

Manifold heaters use the radiator fan to provide a positive air pressure at the start of the pathway. As long as the fan flow from the front is clean no exhaust can enter through seams or joints even if all four head ports leak.

Now, if the setup used a fan inside the cabin, creating a negative pressure in the heat exchanger passway you could suck up leaking exhaust. Of course, leaking exhaust will still get through the floorboard and other unsealed joints into the cabin even with a stock manifold.

Fortunately all the other junk in old car exhaust makes it pretty stinky so even if the monoxide is odorless you generally know you've got a leak. I'm more afraid of an exhaust leak from a modern computer controlled lean burn engine. You smell nothing.

[Mike V. Florida]

Please don't take this the wrong way but how about putting in information in the title instead of your user name? It makes it easier to search and to see if the reader has information that can help so the post won't be skipped over.

[imacrazy]

Sponsored Links (Register now to hide all advertisements)

Thanks, Mike didn't think of it that way.
Bill

[Mitch//pa]

you can also go back and edit the title so it can help others later