110 TLB Water Pump

V1BuzzBomb · Jun 15, 2015

I own a 2004 John Deere 110 TLB, Yanmar motor, obviously. I notice that I have some fan/pulley play indicating to me bad water pump bearings. I have no coolant drip that I know of, regardless, I want to service prior to failure or inoportune time.

I looked up the p/n for the pump assembly on the JD web site. Investigated pricing and found over $400 for new pump!

I could buy components and service myself as I have a shop press and plenty of press adapters. That's an option, but may still lean towards a new aftermarket or remanufactured to limit down-time.

Any members with advice or leads?

jenkinsph · Jun 16, 2015

If you can replace the bearings yourself as mentioned that would be the cheapest route to take. As long as the pump housing looks good I would go for it.

As a caveat, with your attention to maintenance and detail, once you get the bugs out of your 110 I think you will really like it. It is a shame the tractor did not get the attention and maintenance needed in its prior life.

Katahdin · Jun 16, 2015

Check ebay, waterpumps for the Yanmar 4tnv88/4tne88 engine start at $140. A new yanmar tractor dealer may also carry it without the JD markup, the same engine is used in the LX410x and LX450x tractors.

V1BuzzBomb · Jun 16, 2015

Katahdin said:
Check ebay, waterpumps for the Yanmar 4tnv88/4tne88 engine start at $140. A new yanmar tractor dealer may also carry it without the JD markup, the same engine is used in the LX410x and LX450x tractors.

Thanks, I think I've found likewise. The best info I've found for substitutes is from this source:

https://atrebuilders.com/john-deere-yanmar-001932-water-pump.html

Assuming that is correct, I'm searching for water pump for 4TNE84 Yanmar Engine.

Sound correct?

V1BuzzBomb · Jun 16, 2015

jenkinsph said:
As a caveat, with your attention to maintenance and detail, once you get the bugs out of your 110 I think you will really like it. It is a shame the tractor did not get the attention and maintenance needed in its prior life.

Thanks Buddy. I enjoy the machine much. There are, and were, nicer cleaner machines for sale. This one has a cab and all the auxiliary hydraulics and thumb and that is worth sooooo much to me. I spent a lot of money for this thing. I just want to get on top of things before it's too late or too expensive.

jenkinsph · Jun 17, 2015

Mine is about the same with the cab and extra hydraulics a 2005 with 1300 hours on it. I have the 72hd bucket, 66" Frontier rock bucket, 48" rail pallet forks, PA30 hydraulic auger on the hoe and three quick attach digging buckets. Been very satisfied with it these last 10 years.

V1BuzzBomb · Jul 20, 2015

Katahdin said:
Check ebay, waterpumps for the Yanmar 4tnv88/4tne88 engine start at $140. A new yanmar tractor dealer may also carry it without the JD markup, the same engine is used in the LX410x and LX450x tractors.

I found this to be true. A few sellers were selling what appeared to be the same pump and with careful visual scrutiny, looked the same as the 110. I figured I'd take a chance and got one at best offer of $125 and free ship. I did notice one boss on the Deere pump not on the replacement but it is not used anyway. It may be an alternator adjust pry point. Installed yesterday, finished, refilled and tested today. All looks dry! I noticed a lot of plastic smearing on the fan shroud and likewise fan tips. Some is probably the result of the worn pump but I think some of it predated me. Spinning fan on new pump resulted in rub on lower shroud. Upon loosening the six side screws for the shroud, I found that they were slotted and I adjusted the shroud assembly downward, clears now.

With the cab and heater core way up top, I clamped off the heater hoses as close to the pump nipples as I could before draining system. I didn't want to aerate the heater core and have to burp it. In fact, I didn't remove the clamps until the system was refilled and up to temperature to open thermostat. It was then I undid clamps.

As I revisit the listings, I find these to be the common applications with the 110 pump:

Yanmar models F18 FX18 F20 FX20 F22 FX22 F24 FX24 F26 FX26 F28 FX28 F32 FX32 F37 FX37 F42 FX42 F46 FX46 F195 FX195 F235 FX235 F255 FX255 F265 FX265 F285 FX285 F305 FX305 (and all (D) s) F335D FX335D FX435D

engines 4tna78-u 4tna78-rn 4TNE84 3TNE84

John Deere models 770 790 870 970 990 1070 4700 4710 4300 4310 4400 4410 4500 4510 4600 4610 Replaces MIA880461, MIA880462

jenkinsph · Jul 21, 2015

Thanks for posting about the water pump cross reference, I am sure that will come in handy for us at some point.

I did not find it was difficult to get or keep circulation to the heater core. No problems with that so far.

V1BuzzBomb · Jul 25, 2015

Remember that there is a brass/copper washer under the temperature sender!!!

I had brought the old pump into work to pull rear plate, inspect, and see if housing was still good. I showed it to my co-worker as to the the play. At that time, I notice a brass/copper washer staring at me from the bottom of the temperature sender threads. OOPS! I had reinstalled all the fittings with pipe sealer. Fortunately, I had not added coolant to the system yet. I had allowed a day for sealers to setup. I pulled the sender out, cleaned all the sealer off the sender and pump threads. It is a one wire sender so the operation relies on resistance to ground with the switch being case grounded, hence the seat washer. I reinstalled with anti-seize. Guage reads properly.