how to change a block heater
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how to change a block heater
hey guys i have a 93 ford idi 7.3lt and i need to change the block heater on it. i am wondering how i would go about doing this. i know where it is but dont know how to pull it out. i would really like some help in doing so. thank you
Last edited by wildbill; 12-10-2009 at 01:44 AM. Reason: Need 25 Posts To Sale Items
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there should be a screw or bolt i believe with a 5/16 head on it. Unthread it should be about 1 1/2" long with a butterfly type flange that holds it into the block. then just work it out you may have to take the bolt all the way out and then fish the tab out of the block with a pencil magnet. When installing the new one first clean the frost plug hole make sure there is no corrosion and is clean then put alittle grease around the o-ring so that it will slide in easily not alot of grease just alittle around the o-ring and push it in the hole and make sure the lip around the outside is flush with the block and not crooked and then reroute your cord. Have you tested the block heater and sure that it is bad? To test take a volt ohm meter and ohm the prongs the two flat ones should have continuity. If not then yes the heater is bad. Oh yea and drain the antifreeze first off of course or you will take a antifeeze shower once you have it drained from the radiator then you will also have to drain the block as well there should be a 1/4" pipe plug on the side of the block below the frost plug line having the frost plug hole clean and dry helps insure a non leaking frost plug heater
And sorry bill dont care for the tank type heaters have taken many off in my time and have replaced with frost plug type heaters. Yes they can be a b!@&#% to get to seal sometimes but if done right they are alot better IMHO. and for me they seem to do a better job of heating the engine like they are supposed to do
And sorry bill dont care for the tank type heaters have taken many off in my time and have replaced with frost plug type heaters. Yes they can be a b!@&#% to get to seal sometimes but if done right they are alot better IMHO. and for me they seem to do a better job of heating the engine like they are supposed to do
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ArizonaRedneck (12-15-2009)
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