Installing Injectors

rusty6 · Nov 2, 2022

Got the new fuel injectors for the JD 2140 yesterday and attempted the first one today. It came out without too much difficulty but the new one seems to be pretty
tight. In fact I can't get it more than an inch or so down before it stops. I'm guessing the new seal is a little fatter than the original and it might need a
little tap to push the injector all the way in. I don't want to break anything though. Its my first time working on injectors. Accessibility is not great working
underneath the muffler and turbo but I'm hoping to avoid removing that.

2140 Injector Replacement

rustred · Nov 2, 2022

If it was my tractor I would remove the hood and be able to look into them injector bores to make sure they are clean. I am thinking it could be a bit of carbon holding u up. They need to be spotless for the sealing ring to seal. Its not as easy as pulling one out and popping another one in.

Bob Bancroft · Nov 2, 2022

I agree on the carbon.

showcrop · Nov 2, 2022

You need to put some time into cleaning the bores with brake clean, cloth on a round stick, Q tips etc. Sometimes they need to be reamed. 35 years ago I had a truck in the shop getting new injectors under warrantee. It sat for three days while they waited for the special reamer to come in. You may want to consult a shop manual.

Dieseltech · Nov 2, 2022

Use a new sharp 3/8 inch drill bit to clean the head bore. The carbon dam is tight on new injectors. I use a large screwdriver at injector top banjo area to push them down in place. Make SURE the upper seal area on the head is clean, as the compression seal won't hold if dirty or the injector clamp is damaged/broken. If the upper gasket DOES leak, then the LOWER carbon dam WILL fail too as it does not hold compression and pack the complete injector length with carbon making future injector removal impossible without removing the head and driving them out from below.

rusty6 · Nov 2, 2022

(quoted from post at 00:50:23 11/02/22) If it was my tractor I would remove the hood and be able to look into them injector bores to make sure they are clean. I am thinking it could be a bit of carbon holding u up. They need to be spotless for the sealing ring to seal. Its not as easy as pulling one out and popping another one in.

Hood is off. Shows in the video just how little visibility there is with the muffler and turbo in the way. I have the shop manual (also in the video) and they mention a special tool for cleaning the bores. I don't have that.

r.w.b. · Nov 3, 2022

ive used rifle bore brushes with cleaning rod in electric drill. buy a can of throttle body cleaner or 2 and spray lots while brush is spinning in injecter bore. make sure seat at bottom is perfectly clean too or your in for trouble. GET THAT HOOD OFF GET A BRIGHT PENLITE AND LOKK CLEAN LOOK AND CLEAN MORE IF NEEDED. those injecters should slide in smooth with 5 to 10 pounds resistance

showcrop · Nov 3, 2022

(quoted from post at 03:33:55 11/03/22) ive used rifle bore brushes with cleaning rod in electric drill. buy a can of throttle body cleaner or 2 and spray lots while brush is spinning in injecter bore. make sure seat at bottom is perfectly clean too or your in for trouble. GET THAT HOOD OFF GET A BRIGHT PENLITE AND LOKK CLEAN LOOK AND CLEAN MORE IF NEEDED. those injecters should slide in smooth with 5 to 10 pounds resistance

If you click on the link you can see the video with the hood off.

rusty6 · Nov 3, 2022

(quoted from post at 04:50:49 11/03/22)

If you click on the link you can see the video with the hood off.

Yes, seems people are commenting without looking at the video. Sometimes I am amazed at the things people notice in the videos. Other times not.
Got the first injector in but the second one is a little more difficult to remove.

showcrop · Nov 3, 2022

(quoted from post at 06:59:03 11/03/22)

(quoted from post at 04:50:49 11/03/22)

If you click on the link you can see the video with the hood off.

Click to expand...

Yes, seems people are commenting without looking at the video. Sometimes I am amazed at the things people notice in the videos. Other times not.
Got the first injector in but the second one is a little more difficult to remove.

Well, at least now you are making headway.

Installing Injectors

rusty6

Well-known Member

rustred

Well-known Member

Bob Bancroft

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showcrop

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Dieseltech

Well-known Member

rusty6

Well-known Member

r.w.b.

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showcrop

Well-known Member

rusty6

Well-known Member

showcrop

Well-known Member

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