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Block Heater

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Old Jan 24, 2011 | 06:34 PM
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Block Heater

Is there any way to test a block heater. I went out this morning to fire her up and it took a bit even after being plugged in for 36 hours. It was 20 degrees which is not that cold. I got a new cord end today and installed that but all the connections looked very clean and strong so i don't think that is the problem. If the block heater is bad are they hard to replace??
 
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Old Jan 24, 2011 | 07:38 PM
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Since they are hard to get at, the easy way is to connect a lead to each of the prongs on the plug, plug one in to a power source then touch the other to the other pole of the source and if it sparks, the heater should be working.
You could also check for resistance with an ohm meter but I don't know what the value would be.
When I plug mine in I can hear it working after a minute or two.
 
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Old Jan 24, 2011 | 09:24 PM
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First make sure the BH red power plug is in the BH, then do a continuity test with a meter on the main plug wires at the grill. If there is no continuity check the wires for breaks just behind the 120V plug. Pull on the wires and you can see the break as the shielding gets smaller, cut off the end. If the 2 power wires now have continuity through the BH just replace the 3 prong plug.
 
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Old Jan 25, 2011 | 07:09 AM
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he already put a new cord on, so if the test shows it doesnt work then the plugs not in the heater right or the heater may be bad.
Continuity may be a false reading because there could still be resistance in the element.
need to know the resistance value.
 
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Old Jan 25, 2011 | 09:02 AM
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i parked in the garage last night so no need to plug in however i will leave outside tonight and see if the new plug helped at all.
 
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Old Jan 25, 2011 | 09:07 AM
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Just feel around the engine to tell if the heater works. The rad. should get warm as well as around the top of the engine. You don't need a tester to tell if the heater works, if the engine doesn't get warm - the heater doesn't work, not rocket science.
 
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Old Jan 25, 2011 | 10:45 AM
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whats a block heater? lol
i still haven't checked mine.
one of these days.
 
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Old Jan 25, 2011 | 10:57 AM
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Is not really that important to use unless you live where its 40 below every day or you have bad GP's. Mine has been starting up great with original plugs and 0* outside.
 
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Old Jan 26, 2011 | 07:20 AM
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Simple test... it sizzles like a kettle when its halfway to boiling.
Stick your head in the passenger wheel well or down by the fuel filter and you should hear it.
 
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Old Jan 26, 2011 | 08:53 AM
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Originally Posted by NorthernDiesel
Simple test... it sizzles like a kettle when its halfway to boiling.
Stick your head in the passenger wheel well or down by the fuel filter and you should hear it.
Ooooooooor just feel around the engine, it should be warm.
 
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Old Jan 30, 2011 | 11:07 AM
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so the block heater is diffenitly not working. Has new cord end and the cord looks perfect. I have located it right behind the starter. How does it come out. Does it turn? do you pry on it?
 
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Old Jan 30, 2011 | 11:28 AM
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The block heater is held in by a screw in the center that threads into a butterfly clamp on the inside of the block. To change the block heater,
1 drain the coolant
2 remove starter
3 loosen the screw in the center of the block heater
4 pop out old heater, use a screwdrever to pry it loose as it is sealed with an oring
5 clean hole where block heater was and install new one
6 reinstall starter
7 refill coolant and your done
 
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Old Jan 30, 2011 | 01:04 PM
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I know that this is usually frowned upon but all the coolant is only 3 weeks old so i would like to reuse it. If i get a brand new five gallon bucket and drain into that do you think it would be safe to reuse
 
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Old Jan 30, 2011 | 01:16 PM
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coolant is good for 30k miles or 2 yrs.whichever comes first.
wasting new coolant would be a shame.id catch and reuse it.good for the wallet and mother earth.
 
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