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Evolved
Join Date: Jan 2007
Posts: 3,338
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Starter / Heat sink, a potential problem?
Although I drive my car all year (dry weather permitting) I decided to leave the heater tubes off/disconnected from the heater boxes and just wear more clothing on those really cold days out.
From the close proximity of the discharge outlet and the starter  I am thinking ...this is probably not good? I have not yet experienced any starter problems (but it was 95 degrees today) and laying under the car today and contemplating all that hot air currently being blown almost DIRECTLY at the starter/solenoid ...should I attach the hose and bend it to direct it away from the starter and to the atmosphere? Cap the outlet? I think I have seen 'block-off panels' that are at the front of the engine that do away with the air being directed to the heat exchangers entirely? I don't need any heat in the car, ever. What have others done? Suggestions?
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06-21-2009, 04:09 PM
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Join Date: Oct 2003
Location: Michigan
Posts: 14,093
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As I understand it you should have the system capped at some point so that air travels over the cylinders for proper cooling.
To answer your question--I don't think that the hot air coming from that tube would have much effect on the starter.
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1981 911SC ROW SOLD - JULY 2015 Pacific Blue Wayne |
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06-21-2009, 04:47 PM
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Join Date: Jul 2000
Location: So. Calif.
Posts: 19,910
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I would duct it away from the vehicle.
Sherwood |
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06-21-2009, 05:10 PM
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Location: Michigan
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Sherwood-what is your opinion of having the the system closed?
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1981 911SC ROW SOLD - JULY 2015 Pacific Blue Wayne |
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06-21-2009, 05:16 PM
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Location: So. Calif.
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I'd vent the hot air out of the heat exchanger, like the factory designed it via the heater valves, but direct the exit air to a more remote location.
Why keep the superheated cooling air inside? Doesn't make sense. I think the partial restriction created by the heater valves causes air to flow over the engine cylinders, not under. A completely open air dump as shown may make it easier for air to flow away from the planned cooling route. Sherwood |
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06-21-2009, 06:02 PM
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Evolved
Join Date: Jan 2007
Posts: 3,338
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Well, when I look at the two openings at the front of the engine near the fan and compare their openings (2 - 2 1/2"? placed at a 90 degree angle), and then look at the large fan pushing (most) of the air back into the fiberglass shroud and directly DOWN over the cylinders ...I have to wonder how much actual air volume and pressure really is entering the two round exits for the (eventual) heater boxes?
 ..and I have been running this way (no hoses/wide open) for two HOT and HUMID midweast summers, with no cooling or starter problems to date.
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Don't fear the reaper. Last edited by Mo_Gearhead; 06-21-2009 at 06:30 PM.. |
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06-21-2009, 06:26 PM
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