B21 block heater install

   / B21 block heater install #1  

joea99

Platinum Member
Joined
Sep 8, 2014
Messages
671
Location
Marbletown NY
Tractor
Kubota B21, JD 240GT
Today was the day I was going to install a block heater on my B21. Thought I had a hex large enough to fit the plug that has to come out. I was wrong, or lost it.

Anyone know a cheap source of large hex wrenches, etc?
 
   / B21 block heater install #2  
Amazon. Also use tape. I tried to used the pipe dope and couldn't get it to seal.
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Last edited:
   / B21 block heater install #3  
Harbor Freight has large Allen wrench sockets. You will need a breaker bar and some heat to get the factory plug out. It was hard to get mine out of my B2400 block. I used a piece of hex rod and a 3 foot pipe wrench and preheated the plug with a torch.
 
   / B21 block heater install
  • Thread Starter
#4  
I got the set from HF. I'm changing the thermostat while I have it drained. Anyone know the proper torque for the 12 mm bolts?
 
   / B21 block heater install
  • Thread Starter
#5  
So, filled the cooling system then went to get a fan belt. Got back and there was a little pool of green liquid in the heater housing. Cleaned it up thinking I may have spilled some. In less than ten minutes the puddle was back. Keeps growing too. Wonderful.
 

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