Block Heater on a JD990?

   / Block Heater on a JD990? #11  
OK - I think I've found the answer. I had my local JD dealer show me on a 790 where the block heater goes. Look on the LEFT SIDE of the engine block in about the middle. You should find a large (1") pipe plug with a square opening for a breaker bar. It is a threaded opening where the heater module is screwed in. He did say you do need a good quality breaker bar/extension as the plug is VERY tight. You do NOT need to remove any freeze plugs.

On the 790 the spacer, 2 bolts and gasket are not used, just the threaded heater module.

Now get out there and get it done and send us a photo!
 

Attachments

  • 321010-Block Heater port.JPG
    321010-Block Heater port.JPG
    58.6 KB · Views: 313
   / Block Heater on a JD990? #12  
BWa ,

I do not have a 990 but a 4110. I installed a block heater last winter and it has work great. Machine starts just
like it does during the summer /forums/images/graemlins/smile.gif I have it on a timer and plug it in the night before I know I am going to use the
machine. I created a webpage for the install with all the part #'s and cost. I know this does not help you with
your 990 install , however the install steps should be some what the same and should give you a good idea of what
the outcome should look like.

http://24.34.89.194:90/

Good Luck

Mark
 
   / Block Heater on a JD990?
  • Thread Starter
#13  
I did see the Pipe pug on the opporsite side of the engine , I guess we take another shot at it this week end , ....Nothing burns me more /forums/images/graemlins/mad.gif than to have the service / parts manual differant from what you have in front of you .... Again thanks all will try to get pictures , if I can get the wife to let me near the digital camera... /forums/images/graemlins/crazy.gif
Bill g.
/forums/images/graemlins/smile.gif
 
   / Block Heater on a JD990?
  • Thread Starter
#14  
Well the heater is in , Boy ,,,,,,that was some fun , .... /forums/images/graemlins/shocked.gif
Who ever said that the plug was going to be in there tight was not kidding !!! /forums/images/graemlins/shocked.gif
I found the plug all right , of course it was on the opporsit side that the manual showed , got the 1/2' breaker bar and extention put it in the plug and ,grrrrrrrrrrrrrr, it no move ... /forums/images/graemlins/confused.gif,, got a 6' pipe slide on to bar and now it is easily loosened and unthread , ....earlier I had drained the fluid or so I thought, got a nice little flood of green fluid that I had to clean up /forums/images/graemlins/mad.gif, ... started the heater plug by hand threading in to the block ... Oops , no room for a wrench /forums/images/graemlins/blush.gif, need a socket, ,hmmm 35mm / or 1 3/8 ",, /forums/images/graemlins/shocked.gif I no got , so it is off to find one , a friend the tool man no go ,, so off to the local stores , Nappa , no ,,, Auto store , no ,,, local hardware , and they have everything ,,,no .... Lowes ,,no ,, Sears ,,,, Yup , but have you got money ,,,,,,,,,,, don't have it in 1/2" drive , 3/4" drive only and no adaptors , ..........$14.00 socket , extention bar $30.00 ,,,,breaker bar , cheap one $28.00 ........... time loss hunting and driving around for it 4.5 hours.....Wife would not let me have the camera ,,, so no pictures of the fun ,,, /forums/images/graemlins/frown.gif,
Well at least my friend went along for the ride and giggled at all this fun I was having ...gee I wonder if it works ? at least it is not leaking ...yet ...
Again thanks all for the help ...
Bill
the duck mechanic
 
   / Block Heater on a JD990? #15  
Bill,
Thanks for the follow-up! 35mm or 1-3/8" socket needed is great info. I guess JD estimates 1/2 hour assuming you have all the required tools. Please see if you can convince your wife to take a picture of the completed install for future TBN'rs.
I take it your friend who giggles is not your wife? /forums/images/graemlins/confused.gif

Think how happy your engine will be when it's all warm and cozy... /forums/images/graemlins/smirk.gif
 
   / Block Heater on a JD990?
  • Thread Starter
#16  
No giggles is not my wife ..lol ... He just has a strange sense of humor at times .. like myself ,....kind of like having the 3 stoogers as grange mechanics and it is not your tractor they a working on ... /forums/images/graemlins/shocked.gif /forums/images/graemlins/grin.gif
Bill G.
 
   / Block Heater on a JD990? #17  
HI

Finally got around to installing my block heater. The previous info posted is correct. The plug is VERY tight, and a 1-3/8" socket will install the new heater plug very nicely.

I used my 3/4" drive ratchet with a 3 foot helper bar to remove the block plug. Incredibly tight !! Why on earth would they torque that plug so hard at the factory. I would be afraid of stripping or cracking the block.

I first put a bucket under the radiator drain and emtpied it. I still had to pull the block plug slowly as the remainder drained into the bucket below.

I have posted some pictures of the operation.

I also installed a transmission heater plug. It is a larger unit than the block heater. I just unscrewed the plug and immediately ( if not sooner) installed the heater. I only lost a small amount of trans fluid which I topped off at the filler. It is easier to access by removing the left rear wheel.

Good Luck
John
 

Attachments

  • 329559-JD990-HTR5.jpg
    329559-JD990-HTR5.jpg
    43 KB · Views: 298
   / Block Heater on a JD990? #18  
Photo of Starter and removal of !@@*!!@ Plug.
 

Attachments

  • 329560-JD990-HTR3.jpg
    329560-JD990-HTR3.jpg
    62.9 KB · Views: 304

Tractor & Equipment Auctions

2018 Bobcat T590 Two Speed Compact Track Loader Skid Steer (A50322)
2018 Bobcat T590...
John Deere 7130 Loader Tractor (A50514)
John Deere 7130...
2009 JACK COUNTY 130 BBL VACUUM  TRAILER (A50854)
2009 JACK COUNTY...
2015 Ford Explorer AWD SUV (A50324)
2015 Ford Explorer...
2018 VOLVO VNL TANDEM AXLE SLEEPER (A51222)
2018 VOLVO VNL...
2015 MACK GU 713 (A50854)
2015 MACK GU 713...
 
Top