Discussion
Recently when driving the cerb i have had the smell of exhaust gas coming into the car especially when cruising at around 50mph. Last weekend i took it to a local garage and they spent 2 days and 500 quid of my hard cash on taking the exhaust and manifolds off and re-sealing everything. On the drive home the smell was still there giving me a headache, so back to the garage it went for more investigation. The analysis so far is that the gas may be circulating at the back of the car and getting drawn in through either the boot seal, or more likely the gap (filled with foam) between the bottom of the rear window and the bodywork?
Does this sound likely and has anyone else had a similar problem / solutions?
Does this sound likely and has anyone else had a similar problem / solutions?
When the manifolds were removed were they checked for cracks. Mine are cracked and I get exhaust fumes in the cab. Like Fubes says I tend to open the windows and boot it. New manifolds are planned. I find it hard to believe fumes are entering via the boot or rear windscreen vent. The air pressure caused by the forward motion of the car is sufficient to pop my windows out of their seals. I can see how exhaust fumes in front of the cab could be join the airflow via the man leaks points but I can see how fumes exciting the pipes would be drawn back into an already pressurised cab. Then again I know stuff all about fluid dynamics.
can vouch for an element of this more so in the Summer. Don't have many problems now I've owned the car for 12 months. Keep the engine bay and pipework clean and oil free. Check oil breather pipe as that weeps. Mine verges on the spotless. You may have some drips of oil getting on hot components and it does get very hot under there. So a hot oiley vapour can have the same effect - dry mouth. Slight dizziness. £500 quid ! Oh dear.
Edited by Mr M on Wednesday 16th April 17:17
My griff used to do this and I fixed it by adding a length of boot / door seal to the return lip on the bootlid itself.
The std Griff set-up does not seal at all along the back edge of the boot adding the extra seal so rubber pushed onto rubber fixed this.
I have to say my 98 cerb did not have this problem
Matt
The std Griff set-up does not seal at all along the back edge of the boot adding the extra seal so rubber pushed onto rubber fixed this.
I have to say my 98 cerb did not have this problem
Matt
My old Griff suffered from these fumes. At the time Fernies said it was because the tailpipes where too short and the fumes where zooming up the back and then sucked into the boot. They did a temporary fix (which solved the problem so didnt take it any further) of filling the void between boot and cabin with expanding foam. Cheaper than a new exhaust 
Thing is the boot is vented by some holes facing the diff, and you need to vent the cabin at speed to help prevent internal pressure bowing the windows out.
So I would say blocking the path from the cabin to the boot is a bad idea.
Later cars had extended tailpipes which may help a bit
Matt
So I would say blocking the path from the cabin to the boot is a bad idea.
Later cars had extended tailpipes which may help a bit
Matt
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