New to me B7100 HST Block Heater

[vshockey10]

Hi All -

We just purchased a mid 90s Kubota B7100 HST 4x4 yesterday. Seems like a great machine but w it being -16 today here in WI I'm thinking a block heater is in order. The temp climbed to 14 in the afternoon today and it still wouldn't start.

I have read several threads, but would like to see a clear and concise answer if possible with photos of a successful install. Does anyone have any input?

thank you,

 

[redmaher]

I have a block heater on my b21 will send pictures tomorrow. Well worth the investment.

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[redmaher]

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[redmaher]

Just realized I had a picture of the block heater.

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[Icebota]

Looks like Redmaher has the answer, I have a 76 B7100 in Fairbanks AK and use an inline water heater, couldn't find a block heater to fit, has worked well for six years now.

 

[North Idaho Wolfman]

The B21 engine looks to have a block with a threaded port for the block heater, on the D750 in the B7100 you do not, you will need to pop out a freeze plug and install the adapter and heater.

What you want is a P/N 70000-00297

http://www.colemanequip.com/Parts_Detail.asp?partID=16392

 

[vshockey10]

The B21 engine looks to have a block with a threaded port for the block heater, on the D750 in the B7100 you do not, you will need to pop out a freeze plug and install the adapter and heater.

What you want is a P/N 70000-00297

http://www.colemanequip.com/Parts_Detail.asp?partID=16392

thank you. do you happen to have any install pictures to reference?

 

[vshockey10]

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thank you. So it looks like the freeze plug that needs to be removed is just behind the starter?

what steps need to be taken prior to removing the freeze plug?


Also since I am going to assume that the coolant will need to be drained somehow, should I consider installing a coolant temperature gauge at this time?

 

[redmaher]

The heater is installed just behind the alternator. If there is not a plug in your block for installing the temp gauge I would suggest an inline guage.

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[torch]

I suggest you make sure your diesel isn't gelling at those temperatures. The previous owner may not have a winter grade of diesel in the tank.

My B7100 came with an inline heater in the lower rad hose. Seems to work well, draws 4.5 amps. Hard to get good pictures through the side covers, and it's tucked under the injection pump and intake, but here goes:

 

[85Hokie]

"The heater is installed just behind the alternator"

when did B7100 HST have an alternator??

Lower radiator hose would be the easiest route and most cost effective too.

Not sure of the ID of the lower hose - would think it is the same as the top?

http://www.tractorsupply.com/tsc/pr...xydUyN2DfmRdIdkKzCG8FVOlVsu2A5QYIoaAviS8P8HAQ

https://www.amazon.com/s/ref=a9_asi...engine+radiator+heater&ie=UTF8&qid=1482249883

 

[fatjay]

I've seen block heaters that go in the oil dip stick hole, if you're looking for simplicity you might want to go that route. Take out dipstick, insert heater. About as easy as it gets, and people report great results.

 

[D2Cat]

The heaters that go in the oil dip stick hole, heat the oil with 80 watts. Be better off putting a light bulb under it!

 

[torch]

The heaters that go in the oil dip stick hole, heat the oil with 80 watts. Be better off putting a light bulb under it!

There's room for a 200 watt magnetic oil pan heater on the right side of the oil pan.

 

[North Idaho Wolfman]

There's room for a 200 watt magnetic oil pan heater on the right side of the oil pan.

I wanna see you try it!

Ummm can you say aluminum pan!

 

[vshockey10]

Awesome thank you for the photos guys. I started it tonight in 30F weather. Cycled the glow plugs for three clicks and she fired up with a ton of smoke.

I do believe the previous owner had summer blend diesel in the tank so I will have to siphon it out and replace.


Going to need to do a lot more research to fully understand my machine. This site seems full of information.

 

[D2Cat]

jJst get you some winter additive to help with gelling and top of the tank and go play with it for a while. All will be fine. No need to waste the fuel in there.

 

[North Idaho Wolfman]

So it looks like the freeze plug that needs to be removed is just behind the starter?
What steps need to be taken prior to removing the freeze plug?
Also since I am going to assume that the coolant will need to be drained somehow, should I consider installing a coolant temperature gauge at this time?

Just in front of the starter.
Just clean off the block of any dirt where your going to pull the freeze plug from.
And yes drain coolant before you start.
Use a small punch or chisel on the right or left edge to spin the freeze plug then grab it with pliers.

If it doesn't have a temp gauge you could add one if you think you need it, but it's going to require a hose adapter on the upper hose to put one in, there is no place on the block or the head to put one.

 

[redmaher]

Just add fuel treatment and get a can of 911 and keep it in your tool box incase you do ever gel up.

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[torch]

I wanna see you try it!

Your wish is my command:

But you do raise a good point. For those models with aluminium pans, there is a roughly equivalent option called the "Polar Pad". It's a thin heating pad that you glue to the oil pan. They come in versions from 70 to 1000 watts. Here's the 250 watt model:

http://www.canadiantire.ca/en/pdp/polar-pad-engine-heater-250w-0300001p.html

(NB: it's a Canadian product, so I don't know how readily available it is south of the border.)