<VV> heater exhaust smell.

Michael Demeter yenko24 at gmail.com
Wed Dec 18 20:29:23 EST 2013


Maybe the fuel pump is leaking.  I have had the a small leak in the gasket
that pumps the fuel and it had a small tear.
Check where the hole is in the outside.  Mine was leaking there!

Mike


On Wed, Dec 18, 2013 at 3:11 PM, Smitty <vairologist at cox.net> wrote:

>
>
> From: jeandelucca at aol.com
>
> i am zeroing in on what i believe to be an exhaust leak based on the smell
> the heater of my 63 is producing. i have a set of manifold exhaust donuts
> to
> install, but am wondering about the likelihood of a cracked manifold or
> rotted exhaust tube. the car otherwise runs fine and strong and is not loud
> at all, all hoses are new and intact. any toughts/ comments? thanks, jim
> ----------------------------------------------------
> Smitty Says;  If the smell is worse when the heater is on, then there are
> few places that can leak and you smell it.  Usually even the manifold to
> crossover pipe donuts won't be smelled when leaking because they are
> outside
> of the engine's cooling system.  In other words, the engine cooling fan is
> pressurizing the lower shrouds and air is being blown out of them,
> overcoming what might leak in.  So that leaves just the exhaust tubes and
> (horrors) a head gasket leak.  Since you will be in there changing the tube
> donuts anyway, get your CSI flashlight and check the joint where the head
> and cylinders come together.  If there is a gummy black deposit or
> accumulation on any of the cylinders at that point then you likely do have
> a
> leak there.  One clue about head gasket leaks is that they can be pretty
> rank when you first fire up the engine, but the smell sort of goes away as
> it warms up.
> If you don't have leaks at the heads or exhaust tubes then other possible
> ways to get smells from exhaust inversion to the top of the engine.  A
> straight out the back tail pipe can cause this.  Turbos are sometimes bad
> about leaking exhaust from leaking plumbing and into the fan.  Bad air
> seals
> around the engine can allow inversion.  I'm betting on the tubes or head
> gaskets.
>
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