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Registered
Join Date: Jul 2008
Posts: 2
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Additional Thermostat? Do I need it?
I am trying to determine whether or not the additional thermostat on my 89 325is can be removed and replaced with conventional hoses leading to the heater core.
What does the additional thermostat do or prevent from doing? Any info would be greatly appreciated. Thanks, JohnW8 |
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Moderator
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The thermostat on the heater core is likely to shut of flow to the core if the engine starts to overheat. This is to prevent damage to the core and the interior of the car.
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HPDE Instructor (BMW / PCA / Apex) Here: 1997 M3/4 Byzanz/Magma ~ 2006 Yamaha R6 ~ 1997 R1100RT ~ 1991 Ford F-150 5.8l ~ 2015 Kia Optima Gone: 2001 330i Silver/Grey ~ 98 Camry V6 ~ 97 Camry I4 ~ 97 Mazda 626 I4 ~ 93 Sentra SE-R ~ 88 Toyota Truck I4 |
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Author of "101 Projects"
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Hmm, I think it may be the other way around, to recirculate hot coolant back into the engine when the car is warming up. You don't want it flowing to the heater core, as that would effectively just cool the coolant, and slow the warm up cycle. I think if you live in a warm environment like SoCal, it wouldn't make much of a difference. But in cold climates, it would probably slow the warm up of the engine...
-Wayne
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Wayne R. Dempsey, Founder, Pelican Parts Inc., and Author of: 101 Projects for Your BMW 3-Series • 101 Projects for Your Porsche 911 • How to Rebuild & Modify Porsche 911 Engines • 101 Projects for Your Porsche Boxster & Cayman • 101 Projects for Your Porsche 996 / 997 • SPEED READ: Porsche 911 Check out our new site: Dempsey Motorsports |
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