North Idaho Wolfman
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Kubota D1105 Injection pump cracked
- Thread starter jayp1017
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North Idaho Wolfman
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Do you still have the old block?
And why did you need to replace the block?
Sorry for all the questions, but nothing pops out as a cause yet.
I have the old block. Reason I replaced the block is because I had a combo of things happen. Started as a cracked head and colant plug coming out on radiator as I was mowing air strip...this cracked the middle cylinder causing melt down...I bought kit to rebuild and resleeve but ended up finding a new block by chance...which was a whole lot more appealing than resleeving/machining the old one. I'm beginning to think your just asking me questions to improve your page status
lol...anyhow, I'll take the questions if it may lead to the answer.
North Idaho Wolfman
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ok one more set of pictures
Fuel cam.
Here is what I'm thinking, that this bearing is not in the right position and the fuel cam is hitting the body of the pump and not the roller.
This wear mark makes me think something is off.
I also really don't like these marks
Fuel cam.
Here is what I'm thinking, that this bearing is not in the right position and the fuel cam is hitting the body of the pump and not the roller.
This wear mark makes me think something is off.
I also really don't like these marks
Now that right there is hilarious! Only a newbie would say that.I have the old block. Reason I replaced the block is because I had a combo of things happen. Started as a cracked head and colant plug coming out on radiator as I was mowing air strip...this cracked the middle cylinder causing melt down...I bought kit to rebuild and resleeve but ended up finding a new block by chance...which was a whole lot more appealing than resleeving/machining the old one. I'm beginning to think your just asking me questions to improve your page status
You are a genius! I now remember I over tightened a bolt on the bearing retainer plate (part #90) and broke off one of the hex bolts...there are two of them and one I sheared off but forgot about it in my haste to get it back togeather. Man I tell ya little things like this really come back to bit ya in the ass! I'll report and take a few pics when I get the engine pulled back out of the machine tomorrow. I'm sure this has to be the problem as it makes the only logical sense!
LOL I was being a smart ass...Glad it brought a smile to your face!Now that right there is hilarious! Only a newbie would say that.
North Idaho Wolfman
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Send @007kubotaguy a Pm and see if he has one.Now that I'm all broke rebuilding this thing...whose got a spare pump
Also you can put a post in the Classifieds section and might get a hit there.
Awesome! You are the man! Thanks so much. Pretty sure this mystery is solved!
well I took a look at the cam from the top and there is very slight movement of the cam from side to side but I don't believe enough to justify that as being the issue. hummm?
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I do see that bolt to the right sticking out a bit but I don't think that is causing the issue either
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DITTO IMHO North Idaho Wolfman is this website's Kubota Guru.Now that right there is hilarious! Only a newbie would say that.
fried1765
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I think MOST of us DID realize that you were intentionally being a smart ass.
We ALL do know that NIW is the Einstein of the Kubota world.
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Can see corresponding marks on that cam that most likely are from the bottom of the pump as wolfman pointed out. I think I would try to get a deck height from the new block and compare that too the old block.
North Idaho Wolfman
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Pull the shims and put a straight edge across the block just above each bearing, and measure from the top of the bearing to the bottom of the straight edge and try and get a good measurement.
The do the same from the old block.
Tolerances are very tight, so any movement at all can be very harmful.
A stuck or blocked injector should not cause this, but anything is possible.
Do you think you have one that is stuck?
We can test for the when you get the new pump.
When you get a new pump we can do some tests before you run it.
The do the same from the old block.
Tolerances are very tight, so any movement at all can be very harmful.
A stuck or blocked injector should not cause this, but anything is possible.
Do you think you have one that is stuck?
We can test for the when you get the new pump.
When you get a new pump we can do some tests before you run it.
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I will do that...problem is the old block isn't in my possession currently so I'll have to take a trip to go get it. Curious tho, would a bad injector cause the pump to crack like this? It seemed to run on all 3 cylinders but above 70% power is when catastrophic failure happened. Idk I'm grasping at straws here.
North Idaho Wolfman
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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more