v1505 over revs

lostintime

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Apr 2, 2019
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Warren
I bought a trition 8 wheeler with a kubota v1505 turbo diesel. It sat for 7 years with out starting. Now I tried to start it and wont fuel up. so I pulled the injection pump and found a froze fuel rail. I pulled it apart and freed it all up. put it back on. Then I pulled the injectors and found the pintels were all froze. So I freed the all up and cleaned everything, put it back together.
Now it starts and revs and only way to shut it down is clamping off fuel line as I don`t have the fuel shut off yet( seized solid). I would say it is reving at about 35-4000 rpms when started. I have pulled the injection pump three times now without finding anything wrong. Oh and it just bellows black smoke( overfueling). What am I missing?
I have the plungers groove lined up with the delivery hole, is that right? I am about to order a new injection pump but I don`t want to throw money at it if that is not what is wrong with it. Oh and there is only 220 hrs on it.
Any help would be greatly appreciated
 

North Idaho Wolfman

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Three things.

Taking it apart, you might have messed up the sync timing in the injection pump, there is timing marks on the gears.

When you reinstall the injection pump you are not getting the rack pin to engage the governor linkage.

Your injectors are sticking open and not firing right (low chance of being your issue).

I would pull the Injection pump ( keep all the shims off the bottom of the original pump, as that set the timing) and the injectors and have them professionally tested and/or rebuilt.
 
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lostintime

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Apr 2, 2019
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Warren
Three things.

Taking it apart, you have messed up the timing in the injection pump.

When you reinstall the injection pump you are not getting the rack pin to engage the governor linkage.

Your injectors are sticking open and not firing right.

I would pull the Injection pump ( keep all the shims off the bottom of the original pump, as that set the timing) and the injectors and have them professionally tested and/or rebuilt.
first how would I mess up the timing in the injection pump if I never turned the flange sleeve?

second the rack pin is installed in the governor linkage properly.

Third if the injectors are not firing right it should not cause over revs as they do not control the fuel going to the cylinders the injection pump does.

for sending everything in they want 800 just to hook up my injection pump to see how it is. That doesn`t include anything else
 

North Idaho Wolfman

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first how would I mess up the timing in the injection pump if I never turned the flange sleeve?

second the rack pin is installed in the governor linkage properly.

Third if the injectors are not firing right it should not cause over revs as they do not control the fuel going to the cylinders the injection pump does.

for sending everything in they want 800 just to hook up my injection pump to see how it is. That doesn`t include anything else
Really, you come on here and ask why it's doing what it's doing, I tell you, and you tell me I'm wrong on every point.... :rolleyes:

And find someone better to do your testing as $800 to test a pump and injectors is a complete rip off.
 

lostintime

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Warren
Really, you come on here and ask why it's doing what it's doing, I tell you, and you tell me I'm wrong on every point.... :rolleyes:

And find someone better to do your testing as $800 to test a pump and injectors is a complete rip off.
Sorry I wasn`t trying to tell you that you were wrong on everything I was just stating the things that I made sure that was right when I was assembling it. And I know its a rip off thats why it isn`t going in to be tested by them. They are the only diesel place around here that does testing on injection pumps.

I would be better buying a new injection pump for the price they want to test this one.

I just don`t know for sure if it is the injection pump that is the problem for sure or the governor. Unless I strip this engine apart
 

lostintime

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Warren
first how would I mess up the timing in the injection pump if I never turned the flange sleeve?

second the rack pin is installed in the governor linkage properly.

Third if the injectors are not firing right it should not cause over revs as they do not control the fuel going to the cylinders the injection pump does.

for sending everything in they want 800 just to hook up my injection pump to see how it is. That doesn`t include anything else
But I wou;ld like to know how I would mess up the injection timing by pulling the pump apart?
 

North Idaho Wolfman

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But I wou;ld like to know how I would mess up the injection timing by pulling the pump apart?
Sorry my last reply was short and rude. :eek:

Are you Warren, michigan or ????

If you anywhere in the US, get ahold of Oregon Fuel Injection, they are excellent and reasonably priced.

https://oregonfuelinjection.com/

All I can say is you could have reassembled the pump wrong in several different ways, hard to say without seeing the pump.
Also the pump tolerances could have been damaged when it go seized up or on disassembly, corrosion of all kinds can do that.

Injectors that are not seating properly will over fuel an engine, as their regulation of fuel can be damaged.

Can you pull the throttle back and slow the engine down, I bet not, it's not the governor.
It's never the governor... well almost never, lets just say it so rare it's not worth mentioning or even considering. ;)
 
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lostintime

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Apr 2, 2019
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Warren
Sorry my last reply was short and rude. :eek:

Are you Warren, michigan or ????

If you anywhere in the US, get ahold of Oregon Fuel Injection, they are excellent and reasonably priced.

https://oregonfuelinjection.com/

All I can say is you could have reassembled the pump wrong in several different ways, hard to say without seeing the pump.
Also the pump tolerances could have been damaged when it go seized up or on disassembly, corrosion of all kinds can do that.

Injectors that are not seating properly will over fuel an engine, as their regulation of fuel can be damaged.

Can you pull the throttle back and slow the engine down, I bet not, it's not the governor.
It's never the governor... well almost never, lets just say it so rare it's not worth mentioning or even considering. ;)
Warren Manitoba. And you are right I can`t pull the throttle back to slow the engine down.
So I guess I pull everything back apart and check it over again. Thanks for the replies
 

MilkyWay

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Dec 5, 2010
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Sorry my last reply was short and rude. :eek:....
Not short or rude if you axe me. Perhaps Mr. lostintime is a master Kubota mechanic like you and has lots of credentials to stand on.
Dude; you may not have intended to come across as strongly as your wording seemed, but it seemed pretty strong to me. Welcome to the forum. That is sincere. These guys with a brazillian posts to their credit know their stiff, err, um I meant stuff. Chill and you will find courteous, unsurpassed help.
 

North Idaho Wolfman

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Warren Manitoba. And you are right I can`t pull the throttle back to slow the engine down.
So I guess I pull everything back apart and check it over again. Thanks for the replies
I'll send you a PM to help you out.
 

Russell King

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Did those fix the problem?


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