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#1
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Less heat after block heater install?
I recently installed a tank style block heater, with hose from the engine drain plug to where the coolant goes to the block from the heater next to the oil filter. I'm feeling less heat than before at the vent. Would the coolant prefer this path rather than going to the heater core? Or could it be the Y fitting is too restrictive?
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Ich liebe meine Autos! 1991 Mercedes-Benz 560SEL | Megasquirt MS3-Pro | 722.6 transmission w/ AMG paddles | Feind Motorsports Sway Bar | Stinger VIP Radar | AntiLaser Priority | PLX Wideband O2 | 150A Alternator | Cat Delete 1981 Mercedes-Benz 300SD | Blown engine, rebuilding someday... 1981 Mercedes-Benz 300SD | Rear ended, retired in garage. 2009 Yamaha AR230HO | Das Boot Excessive speeding? It ain't excessive till I redline! |
#2
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Did you burp the engine?
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42 |
#3
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You have
An air bubble in the system - I'm guessing somewhere in the heater core.
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1987 300D (230,000 mi on a #14 head-watching the temp gauge and keeping the ghost in the machine) Raleigh NC - Home of deep fried sushi! |
#4
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The coolant is bypassing the heater through the block heater. You should install a valve in the line with the block heater.
If you look through the parts yards you can find vacuum operated valves. You would be able to T it into one of the ACC vacuum lines to close the valve anytime you turn on the heater. |
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