B7100 leaky injector

[Richsark]

Hi everyone
Yesterday after I changed the oil, I ran it up for a while and were I spilled a little engine oil around the injectors I noticed on two of them it was bubbling between the seat and the injector.
My question is, do they have a copper washer between the injector and seat and if so what is its size.
And I have not yet received the workshop manual yet, can anyone advise me the best way to deal with this problem
Ps dull and cloudy here looks like rain

 

[Alexisferos]

Hi everyone
Yesterday after I changed the oil, I ran it up for a while and were I spilled a little engine oil around the injectors I noticed on two of them it was bubbling between the seat and the injector.
My question is, do they have a copper washer between the injector and seat and if so what is its size.
And I have not yet received the workshop manual yet, can anyone advise me the best way to deal with this problem
Ps dull and cloudy here looks like rain

yes they have a copper o-ring, very easy fix, look at my post what i did in mine..

photo1
photo2

 

[Richsark]

Hi Alex
Thanks for that very helpful, what size are the copper washer and do you know were to get them online?
Thank again

 

[Rob]

you will need part number 17011-53620 if using a genuine kubota part, or just take your old one into a car acc shop ( not sure how many their are on sark to be honest) and they should be able to match it without any problem.
i have a box full of them in various sizes, its an easy fix, just be sure that you make sure the injector exterior body is super clean before refitting.

if you get stuck i could send you some.

rob

 

[Alexisferos]

as Rob said just go to every car acc shop. i wend with my old one and the hade the same from some set of injector repair.
and don't try to clean the head of the injector. you will destroy it,
just clean the hole and put the new ring.

 

[Truckedup]

If the copper ring isn't damaged it can be annealed to make it soft again. Just heat it red hot , let it air cool or plunge in water. Either way it'll be soft again.
Copper sealing rings found in auto parts stores are usually cheap copper that has been work hardened when stamped out...Anneal it.

 

[Richsark]

Thanks everyone, there are no car part shops in Sark, infact there are no cars or motorbikes just tractors, agricultural and construction machinery, but no tractor parts shop every thing for them has to be shipped in. It's a pain but you get used to it.
I will go for truckedup's way for now, it sound good and order some in for spares.
Great advice thanks

 

[Dan_R_42]

Copper sealing rings found in auto parts stores are usually cheap copper that has been work hardened when stamped out...Anneal it.

Great point Truck, about having to anneal the copper before installing. Thanks.

 

[Rob]

Thanks everyone, there are no car part shops in Sark, infact there are no cars or motorbikes just tractors, agricultural and construction machinery, but no tractor parts shop every thing for them has to be shipped in. It's a pain but you get used to it.
I will go for truckedup's way for now, it sound good and order some in for spares.
Great advice thanks

dont forget good old horse power


rob.