Most Common Problems with Kubota B7100 You Should Know About


The thing about engines is eventually, they’ll start to show some signs of wear and tear. There will be some minor (or major) problems you’ll have to deal with.

It shouldn’t come off as a surprise when we talk about tractors and their engines – in this case, the Kubota B7100. From the surface, it looks like just any engine.

But there are some of the most common problems with Kubota B7100 you should know about. If you own one for yourself or are eyeing a used one, this will come in handy for you. The best way to make a good purchase is to know what you’re buying into. 

Common Problems of Kubota B7100 and Their Fixes

Alright then, let’s dive into some of the problems with the Kubota B7100. If you’re buying one that’s second-hand, knowing these will help you.

Glow Plugs Not Working

This one is common and a major one. Whenever checking for any problems, your first instinct should be to check out the glow plugs. Sometimes the glow plug indicator might not glow at all. 

Now, a glow plug not working doesn’t mean they aren’t working. If the tractor doesn’t cold-start, it means they are still working. 

What you can do is take the plug out and or try unhooking the lead from the back. Then, connect it to an ohm meter. These can cost around $40 to replace. 

Copper washers may cost you around $20, depending on the set you get. These aren’t definite numbers. So, it may vary a bit.

Diesel Seepage

Little amounts of diesel fuel can seep from or around the injector lines. It’s usually on the IP.

In most cases, a little hands-on work will fix it. You can get some new copper washers or tighten the lines to fix it. 

Charging Issue

Some older models can face charging issues where the battery refuses to charge. The dynamo can get dirty. So, you can try cleaning it. That can help in some cases.

Other fixes can be to check whether the regulator is mounted properly or not. 

Any other serious problems should be looked at by a professional service shop. They will know what to do. And you can also visit Kubota’s site for their Owner’s Manual Index

Can You Fix the Problem By Yourself or See a Professional? 

You wouldn’t want to take your engine to a service repair shop every time something goes wrong – if it does go wrong in the first place. But most of the problems we mentioned can actually be fixed by yourself. 

Well, there’re times when things will get complicated, and you can’t do anything. That the moment you should go to a professional without a delay.

How Much Will It Cost to Fix the Problem?

As we mentioned before, if your glow plug isn’t working, you can replace them for around $40, and the other follows. All in all, you should get the parts for most fixing jobs relatively easily and cheaply unless there is any major issue.

Is The Kubota B7100 Worth It?

After all, is said done, it does just come down to one question. Whether it’s worth it or not. We would say it depends on the price you get for it. 

Since these were built a while back, you probably won’t be able to buy them brand new. Or even if you could, it would be very rare! Going for a second-hand option is probably what you can do here.

The price will depend on how well it has been maintained and also on the hours put on it. If you’re buying one, we would highly recommend you do a thorough inspection of it. 

That way you ensure that you won’t get ripped off or end up buying one that’s in bad condition. 

Is The Kubota B7100 Reliable?

Okay, before we dive into the problems, it’s worth talking about the engine itself first. Is it known to have problems? Are Kubota B7100 engines unreliable?

Tractors are an essential tool for agriculture. They go through and are designed to handle stress. But with proper maintenance, a good tractor (and its engine) should last you for quite a while.

When it’s just sitting there being inoperable, it’s not only costing you money, but priceless time is wasted. So, the last thing you want is a bad one with an unreliable engine.

Fortunately, that isn’t the case with these engines. Kubota engines and tractors are reliable and well-built. So is the B7100. The Kubota B7100 engine is a reliable machine no matter which way you look at it. 

As we mentioned earlier, proper maintenance is a crucial factor in deciding how long the engine will last and whether it will have problems or not. Kubota tractors are reported to run for 4,000 hours. 

That’s quite an impressive runtime. Not only that, other ranchers reported that they ran for 10,000 hours! Yes, 10,000 hours. How impressive is that? 

So, this engine should last you for quite some time with proper maintenance. There is no doubt about that.

Kubota B7100 Specifications 

Here are the detailed specifications about the Kubota B7100 Engine:

ParametersSpecs
Type3-cylinder Diesel
CoolingLiquid cooled
Coolant Capacity4.6L
Bore/Stroke2.625” x 2.75”
Displacement46.5 ci
Air CleanerDry
Power16HP
RPM (Rated)2800
Starter Power1.1HP
Starter Volts12
Pre HeatingGlow Plugs

Frequently Asked Questions (FAQs):

What’s the average runtime of a Kubota engine?

The average runtime of a well-maintained Kubota engine is anywhere from 4000 to 5500 gauged hours. This isn’t by any means a definite range. It can even last longer or shorter.

When Should I Take My Kubota B7100 To A Service Shop? 

In case you are facing some major problems without any DIY fixes, it’s best to get professional help. It’s not worth tinkering around if you aren’t sure what the problem is. 

Wrapping Up 

There you have it. Now you know what the most common problems with Kubota B710 are. Most of these are normal wear and tear issues, while others can be fixed with minor tweaks. 

And for serious issues, it’s best to check out the user manual or visit a servicing center.

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