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cubby911T's Avatar
 
Join Date: Nov 2004
Location: South Bend, IN
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Question Will using my heater cause rust?!?

A fellow 911 owner here at work just told me that frequent use of the heater in early 911's will cause rust in the rocker panels even without the presence of catalysts such as salt or external moisture. He says that mere condensation that occurs during heater use is enough to bring the rust.

How much truth is there to this claim?

I enjoy driving my 70T in cold temperatures, right up until the snow begins to fly.....I'd hate to think that just using my heater is inviting the dreaded rust!!!

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Matt M. -- Go Irish! 1990 964 C2 Targa
"Cheap tools and no experience has taken its toll" - J.W.

Ghosts of the Past: '77 911S Targa 3.2 Conversion, '89 Carrera Coupe, '99 Boxster, '70 911T Coupe ,'80 911SC Targa, '77.5 924
Old 12-23-2004, 09:40 AM
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Isn't it just the opposite?

If you use your heater, then hot, dry air is coursing through all the "tubes" that make up your heating system. That should have the effect of drying out any air that's in those tubes, thus avoiding rust.

However, when all that warm air cools down, then condensation "might" occur.

We've had out 911SC for 23 years now, and no rust has formed. We've lived in Washington DC, Orlando, Glendale CA, Columbus OH, and Palm Beach Gardens, and have used the heater in all of those locations. Still no rust.

Just drive the car!!!!!!
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Andras
1983 911SC The Chocolate Kiss
1998 Audi A6 Quattro (Family Car)
2002 Audi TT Roadster (Wifey's Car)
1992 Mazda Miata (Daughter's Car)
1991 Honda VFR750F Interceptor
1982 Honda VF750S Sabre

Last edited by Andras Nagy; 12-23-2004 at 11:01 AM..
Old 12-23-2004, 09:46 AM
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Thanks, Andras.....but remember, your SC has one thing going for it that my T does not: GALVANIZATION
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Matt M. -- Go Irish! 1990 964 C2 Targa
"Cheap tools and no experience has taken its toll" - J.W.

Ghosts of the Past: '77 911S Targa 3.2 Conversion, '89 Carrera Coupe, '99 Boxster, '70 911T Coupe ,'80 911SC Targa, '77.5 924
Old 12-23-2004, 10:28 AM
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Didn't someone post something about using the heater may cause Parkinson's Disease. Sad part is I don't know what would be worse, rust in the heater channels or getting Parkinson's. Guess I should get rid off my heat exchangers!!!
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1976 911S Targa
Old 12-23-2004, 10:43 AM
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Yeah, I read that post about the Parkinson's.....I'm more worried about the rust LOL!!
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Matt M. -- Go Irish! 1990 964 C2 Targa
"Cheap tools and no experience has taken its toll" - J.W.

Ghosts of the Past: '77 911S Targa 3.2 Conversion, '89 Carrera Coupe, '99 Boxster, '70 911T Coupe ,'80 911SC Targa, '77.5 924
Old 12-23-2004, 04:20 PM
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Its like startiig a car (any car) and repeatedly not warming it up. You get condensation which doesn't get driven out and dried up. That's a main reason that mild steel mufflers rot.
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Old 12-23-2004, 04:27 PM
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Parkinsons? Whaaaa?
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Old 12-23-2004, 05:36 PM
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Guys, I'm not a doctor, but isn't Parkinson's the "trembling" disease, such a what the Pope and Janet Reno have? Parkinson's has nothing to do with memory loss. It has to do with trembling hands and perhaps limbs.

But your joke is amusing nevertheless. We worry far too much about the little things.
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Andras
1983 911SC The Chocolate Kiss
1998 Audi A6 Quattro (Family Car)
2002 Audi TT Roadster (Wifey's Car)
1992 Mazda Miata (Daughter's Car)
1991 Honda VFR750F Interceptor
1982 Honda VF750S Sabre
Old 12-24-2004, 03:20 AM
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cstreit....here's the thread everyone is referring to:

Will driving an older Porsche cause Parkinsons?

But we digress!!

Seriously, what about the rust???????? I KNOW there must be some more opinions on this matter......
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Matt M. -- Go Irish! 1990 964 C2 Targa
"Cheap tools and no experience has taken its toll" - J.W.

Ghosts of the Past: '77 911S Targa 3.2 Conversion, '89 Carrera Coupe, '99 Boxster, '70 911T Coupe ,'80 911SC Targa, '77.5 924
Old 12-24-2004, 08:57 AM
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Cubby, that's it thanks!!! Fight on SC!!!! (sorry had to) have a great holiday and New Year.

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Last edited by dmarv; 12-24-2004 at 09:48 AM..
Old 12-24-2004, 08:59 AM
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