DIY Fixing Leaky Kubota Diesel Injector

This video shows the diagnosis and repair of an injector in a Kubota B7200 Diesel tractor. In this case, a crush washer had failed and started leaking requiring its replacement. This procedure is a 3 out of 10 for difficulty. It would have only been 2 out of 10 if keeping the fuel system clean wasn't a priority ;)

[@toadabc]

I use the same terminology for the parts you do and I have the same torque wrench.

[@ravenshield7823]

Do you remember what size the jumper lines were, or bleed lines? Kabota calls them low pressure lines but I don't want to confuse the question, the ones you said you replaced.

[@mtraven23]

wow, pretty sure thats the same engine as my Ford 1320!

[@lumberjackbjh]

Thanks

[@scottheller1379]

I cannot find my leak. Will run till it warms up the gets worse. Had a yellow fuel line on return and could see air in line. But cannot see diesel. It would run during the cold for a bit, now hardly at all.

[@rubenmartinez4552]

What's the part number for crush washer

[@BondservantofYah926]

Question. I am. Getting extra fluiD in my oil. I checked iT 3 times for water by draining some oil into a glass . I don’t see any water. So I’m thinking it’s diesel but I don’t smell any. I replaced the fuel pump but it’s still getting fluid in the oil. What should I try next

[@mrdiyguy123]

It sounds like a leaky or stuck open injector. Perhaps other people more experienced than I am can comment.

[@mikesluyter5288]

I have a Universal diesel which is a Kubota for sailboats. I have a fuel Yoke by the injector that seems to be leaking does this use a crush washer also?

[@mrdiyguy123]

Try to get a number off of the injector or motor and look up on the internet or call a heavy equipment shop or kubota dealer and ask them. I don't know.

[@sarahfox9180]

Why does the crush washer have holes in it?

[@mrdiyguy123]

I don't know the answer but would love to learn. Can anyone help us answer the question as to why there were holes in the Crush Washer?

[@MrGrunter]

@@mrdiyguy123 bit late to the party, but the spill from that particular injector comes up through those holes to enter the main return line.

[@dmc31405]

What size hose is the return line from the injectors to the fuel tank? Looks like 1/4" should be about right.

[@mrdiyguy123]

I no longer have the tractor but 1/4" sounds too large going from memory. 3/16" might be more appropriate. The dealer had the specific hoses for less than 6 or 7 bucks each. I replaced the long hose going up to the tank only.