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Registered
Join Date: Mar 2006
Location: New York
Posts: 168
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Warming up your 911
Stupid question:
I've often times heard that it's not good if you keep your car sitting there after starting it and "warm it up"...any truth to this and why? If it is true, how does one deal with a rough idling car that eventually alleviates itself after sitting running for 10 minutes or so? Just curious... |
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04-26-2006, 07:07 PM
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Zombie
Join Date: Apr 2006
Location: Greenwood, IN
Posts: 1,408
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10 is a little long. But 5 wont hurt the reason why they say not to let a car idle for a long period of time is that at idle when hot you car has little oil pressure.
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04-26-2006, 07:12 PM
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When my car idles it shows 4 bar on the oil guage so how can there be not enough oil pressure?
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04-26-2006, 08:20 PM
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Registered
Join Date: May 2004
Location: Lake Cle Elum - Eastern WA.
Posts: 8,417
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I think the theory is that with the fan blowing all that air and no load, it doesn't really warm up until it's driven.......I read that in either Wayne's book or Bruce Andersons book....
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Bob S. 73.5 911T 1969 911T Coo' pay (one owner) 1960 Mercedes 190SL 1962 XKE Roadster (sold) - 13 motorcycles |
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04-26-2006, 08:35 PM
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Immature Member
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Re: Warming up your 911
Quote:
(My teacher said there are no stupid answers... only stupid people. She told me this a lot. 
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1984 Carrera Coupe = love affair 1997 Eagle Talon Tsi = old girlfriend (RIP) 2014 Chrysler 300 AWD Hemi = family car "Lowering the bar with every post!" |
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04-26-2006, 09:11 PM
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Registered
Join Date: Dec 2004
Location: Novato, CA
Posts: 3,064
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There was a big thread on this not too long ago. Search.
How do you deal with the rough idle? As Dent said, fix it. We could offer you help, except you forgot to tell us what year car you have. You want to drive the car off as quickly as possible. When cold, the injection system\choke is richening the mixture to compensate for the cold engine. This washes oil off the cylinder walls and accelerates wear considerably. Your objective is to get the car warmed up as quickly as possible, and you do this by driving off right after starting up as the factory manuals recommend. Treat it gently until the temp gauge is off the peg, ianc
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BMW 135i. Nice. Fast. But no 911... "I will tell you there is a big difference between driving money and driving blood, sweat and tears." - PorscheGuy79 |
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04-26-2006, 09:23 PM
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Immature Member
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Seriously, I think the reason it is often said to drive one's car to warm it up is more environmental. Most contemporary fuel injected cars manage to run very well when cold (not full out, of course) and only waste gas warming up.
Growing up in a northern climate we often warmed our cars up for 10mins (or more) in the winter because it was frickin' cold outside and we wanted heat when sat on those cold vinyl seats. Those older carburetor engines weren't as good at an immediate take off as the choke would be full-on and they weren't capable of any kind of speed under load until the motor had warmed a bit and you could open the choke a bit. Even a cabureted engine should idle smoothly, though. I don't think you are going to do any harm letting it purr for a few minutes before heading out, though. LOL with the cold idle thing.
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1984 Carrera Coupe = love affair 1997 Eagle Talon Tsi = old girlfriend (RIP) 2014 Chrysler 300 AWD Hemi = family car "Lowering the bar with every post!" |
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04-26-2006, 09:25 PM
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1985 Porsche 911 Carrera 3.2
1984 Porsche Carrera
Eagle Talon TSi AWD
Chrysler 300 AWD Hemi
