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Exhaust Leak

Lewis
Lewis
in Exhaust

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Posted
comment_313658

I just got my Z out for a drive through the mountains. With the driver's window down there is a strong odor from the exhaust. Any idea about where that might be coming from? I have inspected the ehaust system and it seems to be in good shape, not holes or breaks. Any ideas are welcomed.

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comment_313664
I just got my Z out for a drive through the mountains. With the driver's window down there is a strong odor from the exhaust. Any idea about where that might be coming from? I have inspected the ehaust system and it seems to be in good shape, not holes or breaks. Any ideas are welcomed.

I have read here on the forum that if the driver's window is down, but not the passenger's window it creates quite a vacuum that pulls fumes into the cabin. From my experience this is true. With both windows down I have many less exhaust smells. I am chasing down my exhaust fume sources as well.

Edited by Davey G

comment_313675

You might do a search on this issue as it has been covered many times. Having said this, take a dollar bill and close it between the hatch and the rubber seal and see if it seals tight all the way around. If not, this is likely a source. Tail light gaskets is another good possibility, also look at the bottom area below the evap tank on the passenger side and below the antenna. Both places have openings either for drains or hoses. This is a start. Another thing, if the vent hose from the valve cover has been removed and a after market filter used instead , this is another source.

Gary:beer:

comment_313718

Lewis-

I agree with Beandip - I just changed out my air filters to the original air breather and reconnected all the hoses along with the air flow valve ......... I removed all the K&N Filters from the breather and the crankcase and made the correct connections - I have not fired my car up but will next week (I live in the 3500' snow belt in NC) - I'm sure my car is going to be more powerful (due to the air horns) and less smell in the interior as well. I did also replace some grommets in the firewall.

Have you adjusted your carbs - are they burning rich generating that heavy fuel smell and smoke?

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