924Board.org

[timstar92404]

I've posted this many times on my problem with getting a really bad headache while driving my car and I've tried everything to fix it with no luck.

first there was a big leak at the centre of the exhaust I went to a mechanic and he welded it up.

but I thought he didn't fully fix it so today I went to a costum exhaust shop and they raised my car and ran the engine and he looked at the exhaust with a light and felt around the pipes to see if they were leaking and he said it was fixed and there is no leak.

he didn't check my exhaust manifold though, he said it was fine.

he just said my exhaust is noisy. so now I'm really confused as to why I'm getting so dizzy and sick while driving. feels like carbon monoxide poisoning I get light headed and blurry vision etc.


this guy suggested that it could be burning oil is getting blown by the radiator fan and getting into the car through the vents but I've tried tapping up my vent (the one int he engine) and it didn't help.




other thing is the rear glass hatch, mine has something wrong with it and when I shut it with the new hatch seal it does not fully meet with the seal at the pin area (where it looks in) so there are gaps. I filled the gaps with rubber glue (can be removed) and it is pretty much closed (but if I hose it a water still gets in from some spots .



but the confusing thing about my this problem is that when I open my windows (either both or just the pasenger window) the headache problem is not reduced at all or even made worse, because I tried driving with the windows almost fully close (few mm left) and I'm pretty sure I had less of a headache.



so the only other thing about the actual exhaust itself I can think of is that my muffler is not exiting the rear bumper completely , before my previous muffler had a tip and was exiting out quite a bit and I don't remember getting a headache with my previous exhaust (but the previous exhuast also had a catalytic convertor).



the exhaust guy said he can isntall the new muffler that I bought and make a tip for it and bend the tip pointing down so less of it gets blown right up the hatch are but i'm not sure if this would help at all but i'll try it.
he said it would cost 150 bucks to do that. I'll go do this on monday.


another thing he mentioned is that he said that he could smell my exhaust alot while standing outside my car and said it smells like my car is running too rich.


anyone have any suggestions. if this doesn't work I'll have to get rid of my car as I don't know what else to try.
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78 924 sold.
85.5 944

[leadfoot]

Do you wear or need glasses?? as having a persciption out of date can give you a headache, also your eyes being strained will do the same...
having tight trapezoids will also cause headaches....
BTW I am being serious....

There are numerous round rubber seals around the car that also prevent fumes from getting into your car... such as in the rear hatch where the fifth wheel sits and in both of the rear side compartments below each of the rear light assemblies. They are used as drainage points for water if needed.
One of them you might look for is in the right hand front wheel well where the aerial mounts, this is right near your exhaust manifold and may be the source of your problem... These rubber grommits as they are known do need replacing every 10/15 years and this one has the wires for the antenna pass though and the seal can be buckled as a result. A little bit of RTV silicone added or equivelent silicone sealer will do the trick to help seal.
As for your hatch sealing, you really should have a proper seal and it would suggest that either you have the wrong seal, your hatch is out of alignment or your hatch locks are susspect.

So I pose this question to you... (1.) does your hatch move around when closed or (2.) does it sit firmly in its locks and you have to insert the key to release it.

If the answer is yes to question 1 then you need to get the right seal that will allow a tight seal for the hatch.
If you chose to do makeshift arrangments by using rubber glue then you might as well be chasing your tail... does this make sense??
The right seal should allow you to close the hatch for a tight seal.
_________________
1981 ROW 924 Turbo -
carbon fiber GT mish mash
LS1 conversion in progress...

[Neil924]

If water can get in your rear hatch then so can exhaust fumes. Get it replaced. As for the open windows making it better, that's because there is more fresh air. Does it rattle when you hit a bump?

Get it replaced.

[Paul]

When the car is cold, start it and cover your tail pipe exit with a towel. There should be pressure and if you hold it there long enough the car should start to stall.

If there is no pressure, YOU HAVE A LEAK!
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

[Neil924]

[timstar92404]

NO I said when I open the windows it gets worse or at least I'm pretty sure it does. but it definately does not get better.


and like I said it has been checked by two professionals and they say there is no leak.


only thing I can think of is that the muffler does not exit eough (from the rear bumber and its getting blown back into the car through the windows or possibly still through the hatch.

on monday I'll put a new muffler on and they'll also put a tip on it that exits the bumper a bit an also bent downwards rather than upwards like it is now.



the guy also said it could be fumes from burning oil getting in through the vents.
_________________
78 924 sold.
85.5 944

[timstar92404]

I got the rear hatch seal from porsche they said it was for the 924/944 etc. I"m positive it is not the seal itself as before with the old seal there were these gaps also.


the hatch itself seems to be the problem but it does fully lock and it does not move around when locked in.

I could not fix it myself I was scared I would break the entire hatch. I might take it to a mechanic and have them look at it.

where the pins on the hatch iself lockingo the locking part the hatch seal touches part of the locking part on the hatch iself and this causes a gap between the seal and the hatch. I played around with it but could not fix it and gave up.




and yes in my hatch where the spare tire is and where the sunroof drain hose comes out there are a like 2 small cut out holes for water to drain out with no rubber covering it.



but the reason I don't think this is the main source is due to the fact that when I open either window or both I'm certain I get a much bigger headache than when I close it.




and yeah I do wear glasses but I don't think that would cause me to feel extremely stoned and drunk , lightheadish when I get out of my car.

I always go to class and work all lightheaded and alot of times with bad headaches.
_________________
78 924 sold.
85.5 944

[timstar92404]

oh yeah my rear hatch glass is definately starting to sepearte from the frame especially at the top where it attaches to the car. when you pull the hatch up you can see the glass move from the frame.
_________________
78 924 sold.
85.5 944

[Paul]

Please stick a towel over the exhaust pipe and verify you don't have a leak in the exhaust system, it will only take 30 seconds.

[timstar92404]

alright I'll do that. only place ther could be a leak is in the exhaust manifold which the guy didn't check he just said it was fine.
_________________
78 924 sold.
85.5 944

[Ozzie]

Take your car to a windscreen place and ask them to refit the glass and adjust the hatch to seal properly.
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

[Neil924]

[Ozzie]

In fact until the rear hatch is fixed there is no other advice.

If you are worried about your exhaust being too short then get an extension chrome tip on it.

Once that is done then is air getting in anywhere via the gear change boot, heater vents, door vents, aerial hole.

Are you wearing too tight underwear? It can press your testicles against your spine and give you a headache. Castration is the cure. LOL.
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

[Gram]

_________________
'82 924 NA Euro (hers)
'98 Audi A4 TDI (ours)

[timstar92404]