Author	[Modern View]
Dan in North Houston 07-29-2012 16:07:40 76.31.249.38 Report to Moderator	How bad a job is it to replace the water pump in a 4020 (diesel, power shift) with a loader on it? I have the manual, but I'd like some tips from someone who has done it. Is it a one man job, or will I need help? Does the hood have to come all the way off, or just block it up? which side is better to work from? The manual says that some oil cooler lines may need to be removed? it has a JD 148 loader on it. I assume I need to block it up and remove the lift cylinder from one side? How high should the loader be blocked up to get it out of the way? Just high enough to get the arms above everything, or ??? Any special tools required? I'd like to get everything lined out so I have everything I need to get it done next weekend. Any tips appreciated, thanks [Reply]   [No Email]
Jim Knapp 07-29-2012 20:31:17 70.41.0.39 Report to Moderator	Re: 4020 water pump replacement - how bad? in reply to Dan in North Houston, 07-29-2012 16:07:40   I would take the loader off. A 148 ain"t exactly quick-tach, but get it out of the way. Drain the coolant, remove the hood, remove the radiator and you can easily get to the water pump to remove it and clean off the old gasket. Starting with a tractor without a loader, I can have the radiator off in 30-45 minutes. Check to see if the radiator needs cleaning or repair. Check to see if any oil lines are bright from rubbing on something.As someone said you will save skinned knuckles and possibly damaging the radiator. Jim [Reply]  [No Email]
mattroh 07-29-2012 20:14:49 12.43.160.92 Report to Moderator	Re: 4020 water pump replacement - how bad? in reply to Dan in North Houston, 07-29-2012 16:07:40   We have worked on our 4020 Diesel loader tractor's water pump a few times over the years, and all we do is take off the shroud, fan, and pulley to get at the pump. It is a little tight, but my grandfather, dad, and myself can all do it by ourselves, and have had to before. Just my 2 cents, Matt [Reply]  [No Email]
41 Frank 07-29-2012 17:12:37 50.44.81.230 Report to Moderator	Re: 4020 water pump replacement - how bad? in reply to Dan in North Houston, 07-29-2012 16:07:40   I have pulled the water pump several times on my brother's 4010D in the old days with the radiator on. Like Tim says put something between the them like beans pallet have under the bags. It is hard to get the shroud on and fan bolts back in but can be done. [Reply]  [No Email]
jddave 07-29-2012 17:06:04 67.84.197.236 Report to Moderator	Re: 4020 water pump replacement - how bad? in reply to Dan in North Houston, 07-29-2012 16:07:40   Dan, Touche Tim. Get the hood off and pull the radiator. You will appreciate the convenience and access and you can also service the belts, clean the radiator and maybe replace the front hydraulic pump link and bushings if required so much easier at this time. I am convinced that the time spent pulling things apart, inspecting and servicing is so worth it on any machine 40+ years old. [Reply]  [No Email]
Tim S 07-29-2012 18:07:07 75.60.201.141 Report to Moderator	Re: 4020 water pump replacement - how bad? in reply to jddave, 07-29-2012 17:06:04   Yes and it would be a good time to have the radiator flushed and checked... [Reply]  [No Email]
Tim S 07-29-2012 16:15:22 75.60.201.141 Report to Moderator	Re: 4020 water pump replacement - how bad? in reply to Dan in North Houston, 07-29-2012 16:07:40   I pull the hood and radiator when I do them, raise the loader clear up and block the cyl. with an angle iron cut to the right length. You can change them with the radiator in place but you stand a strong chance of marring up the radiator and your knuckles,,if you do decide to leave the radiator in cut a piece of thin cardboard to protect the radiator.... work it in front of the fan...I think it"s worth the time to pull the radiator... [Reply]  [No Email]