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Cold Weather Issues - One Potentially Lethal


PaulEBirmingham

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I'm having two issues with my 1976 Weber-equipped 4spd:

1) When the weather is cold, like in the 50's and below (which actually happens in AZ) my belt squeals for the first few minutes after start-up.

2) (and far more concerning) Upon start-up in the cold weather, I actually can detect (using a borrowed Kidde alarm with digital meter) a measurable CO level in the cabin - like around 40-70 ppm. Again, this only happens when it's cold outside. I've replaced the trunk seal, under-shift foam donut, and "elephant trunks." I've also covered the two holes under the dash on the passenger side.

Needless to say, I won't be driving the car until #2 can be resolved. I love life too much.

As always, any advice would be greatly appreciated. Thanks!

'76 BMW 2002

'75 BMW 2002 Resto Project

'64 Piaggio Allstate 125 "Allison"

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Guest Anonymous

correct adjustment, pulley alignment, or maybe try some belt conditioner. Check the condition of the seal at the top of the hood that runs the width of the hood. Also check the two seals that go around the hood lock down bar to make sure they are in good shape and are attached correctly. If you are running the heater fan on startup you might wait until the coolant temp reads normal or until you at least get moving to prevent the fan from pulling in the tailpipe emissions. This happened to a couple of airmen from the local airbase: they were sitting in a parking lot talking inside the car with the engine idling and the heater fan going to keep them warm. They were found dead from CO poisoning by a passerby around 1am. Be careful!

shermanmartinez@hotmail.com

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CO is a byproduct of combustion. If your exhaust system is tight, then the stuff is coming from your tailpipe back in the car, most often though the trunk lid seal. A new seal does not mean the trunk is sealed. The trunk has to be correctly adjusted to ensure that it's actually sealed.

Pierre

O==00==O

69 2002 (M20), 74 tii, 76 533i, 79 323i, 80 732i, 84 323i (S50) 91 318is, 96 318ti (S52), 97 Z3, 02 330i, 03 525iT, 02 R1150 RTP.
Auxiliary Lamp Brackets  Kamei Reproduction Front Air Dam

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someone posted this recently and it's a good one.

Place some intense scent--air freshener, perfume etc. in your trunk and drive around for a few minutes. If you smell it in the cabin, there's an air leak.

Also something to check: if you have a sunroof, the air extractor pipes have been plugged by the factory--usually with stray chunks of foam. If they've fallen out, that's your source. Also, if a PO has flush mounted speakers in the package shelf, there's another source.

BTW, it's always a good idea to drive around in the winter with a window slightly cracked open.

mike

'69 Nevada sunroof-Wolfgang-bought new
'73 Sahara sunroof-Ludwig-since '78
'91 Brillantrot 318is sunroof-Georg Friederich 
Fiat Topolini (Benito & Luigi), Renault 4CVs (Anatole, Lucky Pierre, Brigette) & Kermit, the Bugeye Sprite

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