When to replace thermostat and water pump

[farmallboy15]

Getting ready to put a new radiator in my Farmall 706D (D282) due to a severely damaged core. While I have everything torn apart I was planning to replace the water pump which raises the question. With the questionable quality of replacement parts today, would you replace parts that don’t currently present any issues?

Water pump was beautiful inside and spins perfect without any leaks. Didn’t pop the thermostat housing apart yet… All hoses are definitely being replaced though.

 

[rustred]

i do my own assessment on stuff as i dont just replace parts. i would spin the water pump and feel if it has any play in the shaft and make sure there is no sign of leakage out the tattle tale hole. so its your call on that one. as for a thermostat it dont hurt to replace them.

 

[caterpillar guy]

Put silicone hose on it and you will never need to change them again. May look a bit funny with blue hoses on there but last forever about. I use them every chance i need to change a hose on a vehicle.

 

[McCormick 40]

Put silicone hose on it and you will never need to change them again. May look a bit funny with blue hoses on there but last forever about. I use them every chance i need to change a hose on a vehicle.

It seems to me the mice and squirrels like the silicone a lot more than the normal rubber ones.

 

[DaveBN]

I don't know what your pump looks like but I was wondering if you or a good shop could replace the bearings or bushings in your original pump.
Dave

 

[Destroked 450]

It’s a tuff call, I don’t normally replace components unless they show signs of eminent failure, that said I had a engine of a parted tractor setting in my shop, engine ran good when I pulled it with no leaks but it set for a few years before I used it on another tractor. I was concerned about the water pump seal having dried out and possibly leaking so I replaced it with a new pump, 2 months later I was replacing the new water pump that a bearing had failed in, all while thinking I should have left the old pump on

 

[Watthour]

Pacific quality components would force me to closely inspect the original pump and consider retaining it over a new replacement.

 

[farmallboy15]

I don't know what your pump looks like but I was wondering if you or a good shop could replace the bearings or bushings in your original pump.
Dave

It has to be a reman pump from 20 years ago. It’s literally still silver on the inside. No rust at all. Bearings seem perfect too. Hate to spend $200-250 for something of possibly less quality. Thinking I’ll roll the dice on it.

 

[farmallboy15]

I don't know what your pump looks like but I was wondering if you or a good shop could replace the bearings or bushings in your original pump.
Dave

It has to be a reman pump from 20 years ago. It’s literally still silver on the inside. No rust at all. Bearings seem perfect too. Hate to spend $200-250 for something of possibly less quality. Thinking I’ll roll the dice on it.

 

[Fritz Maurer]

There is no way to tell. It can be smooth and tight and the ceramic in good shape... all it takes is the little rubber boot over the spring to be rotten to suddenly leak.

Take it to a custom rebuilder for your best luck and to keep your original casting.

 

[rustred]

I don't know what your pump looks like but I was wondering if you or a good shop could replace the bearings or bushings in your original pump.
Dave

There was kits for them years ago. Obsolete now. Your doing good to find a rebuilt pump.

 

[fdt860]

If it does not take 3 hours more to do it later, do it later or never.

 

[Texasmark]

I just bought about a 1994 used tractor and the temp gauge seemed to be acting up. Turned out to be the thermostat was sticking. Put in a new one and problem disappeared.

 

[Janicholson]

I would leave it as is with new hoses. It makes initial sense to replace it, but the effort to do so and the chance of a new part's early failure vote for leaving it alone. Water pumps can go for a long long time without failure. Jim

 

[Texasmark]

I would leave it as is with new hoses. It makes initial sense to replace it, but the effort to do so and the chance of a new part's early failure vote for leaving it alone. Water pumps can go for a long long time without failure. Jim

Couple of supporting comments here: I learned awhile back that if it isn't broken, don't fix it......especially if its a complicated repair. Hasn't let me down yet.

Second one is that for some reason, I decided to put a new thermostat in a Chevy big block. First time out on a fishing trip, pulling my boat, on the way home had to pull over with a high temp problem.....the brand new thermostat bracket broke and wouldn't let the stat open. Don't remember why I chose to replace the old one.....may have been replacing the old hoses (a good idea) and since it was right there, just decided to do it while in the area.