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Unread 10-21-2013, 02:25 PM   #1
gainesee
Registered User
1986 CJ7 
 
Join Date: Sep 2013
Location: Reno, NV
Posts: 17
Freeze plug heater suggestions?

Planning on putting one in my 4 banger. Anyone have some suggestions?

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Unread 10-21-2013, 03:38 PM   #2
gainesee
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1986 CJ7 
 
Join Date: Sep 2013
Location: Reno, NV
Posts: 17
Also wondering what the size of the front plug is.... Looks like 1 3/4 is printed on the cap, but I cant be sure. The reading I have done states 2 inches, but those are all rear plug sizes. Do front and rear plugs have diff diameters?

Thanks for your help!
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Unread 10-21-2013, 04:11 PM   #3
Spieg8
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1984 CJ8 
 
Join Date: Jun 2013
Location: Denver, CO
Posts: 1,130
Get one with removable cord (if it should ever get melted, you can replace the cord without replacing the plug). Use a little silicon sealant on the o-ring to help prevent leaks. Power it from a timer so you don't waste electricity (had mine set to turn on about 2 hours before I went to work).

Should be 1.75" for a 4cyl engine.
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