ve injector pump needed
01-30-2017, 10:28 PM
#16
Banned
The main point here is it doesn't matter what style or brand injection pump it is, it's not ok to apply water to it when running or even luke warm. I don't care if it's a common diagnostic process for some.
How would you ever know the difference if the pump had failed or failed simply beacause you poured water on top of it. Chances are you had a perfectly good pump until the point in which you just placed water on top of it while it was warm. Now you have a pump that is not any good, not beacause it was worn out but simply beacause you decided to troubshoot it with a bucket of water.
But that's ok troublshooting things in that manner are what keep things in my shop so keep on keepin on, water and all.
As a side note redneck is spot on with the 4430 having an A pump not a pee pump, just an fyi.
How would you ever know the difference if the pump had failed or failed simply beacause you poured water on top of it. Chances are you had a perfectly good pump until the point in which you just placed water on top of it while it was warm. Now you have a pump that is not any good, not beacause it was worn out but simply beacause you decided to troubshoot it with a bucket of water.
But that's ok troublshooting things in that manner are what keep things in my shop so keep on keepin on, water and all.
As a side note redneck is spot on with the 4430 having an A pump not a pee pump, just an fyi.
The OP did a very common and not contraindicated troubleshooting test on his pump by pouring water on it while warm and running. This may not be advised on an inline JD pump, but is very common for an old worn out rotary pump.(note that no opinions were expressed in this statement)
01-30-2017, 10:40 PM
#17
Banned
Well coming from the guy whom didn't know an A model pump was an inline piston pump I don't know what to tell you. It seems to me your statement about a 4430 having a p-pump tells me all I need to know.
01-30-2017, 10:50 PM
#18
Banned
Did you go back and read that conversation or are you just picking and choosing what to take from this?
01-30-2017, 10:50 PM
#19
Banned
back in the summer it was idling low when it got hot,,pour water over it and it would idle up......but now it will fire straight up but it started acting like the fuel filter was out changed it and the lift pump but its getting worse now after it gets to about 1200 rpm it starts bogging out and hazing.....
Do I have this about right MR Fonder? Of course this is just your opinion right?
01-30-2017, 10:51 PM
#20
Banned
So when an injection pump idles low it could be that the idle setting slipped or several other possibilities like worn out throttle linkages on the pump itself. Now that we are in the winter not the summer it is acting up again. It's not possible for the lift pump or a fuel supply to be the problem it must be the injection pump itself. It couldn't be the fuel tank sending unit sump mechanism either because they never fail. It's got to be the pump so let's put some water on it while it's running and see what happens.
Do I have this about right MR Fonder? Of course this is just your opinion right?
Do I have this about right MR Fonder? Of course this is just your opinion right?
01-30-2017, 10:56 PM
#21
Banned
Pouring water on a VE pump when it's running poorly is a very common diagnostic test. If the truck runs ok cold, then runs like crap hot, you pour water on the IP to cool it down. If it goes back to running smooth with the water, the pump is done worn out.
A 4430 has a pee pump.
A 4430 has a pee pump.
01-30-2017, 11:05 PM
#22
Administrator
Ok, don't make me turn this car around 
...Mark
...Mark
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mknittle (01-31-2017)
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mknittle (01-31-2017)
01-31-2017, 11:33 AM
#24
Registered User
Thread Starter
So when an injection pump idles low it could be that the idle setting slipped or several other possibilities like worn out throttle linkages on the pump itself. Now that we are in the winter not the summer it is acting up again. It's not possible for the lift pump or a fuel supply to be the problem it must be the injection pump itself. It couldn't be the fuel tank sending unit sump mechanism either because they never fail. It's got to be the pump so let's put some water on it while it's running and see what happens.
Do I have this about right MR Fonder? Of course this is just your opinion right?
Do I have this about right MR Fonder? Of course this is just your opinion right?
01-31-2017, 01:21 PM
#26
Registered User
No. When they start in cold weather, it is all cold and all warms up together. When it is all hot and you rapidly cool part of it off, tolerances change. Maybe nothing bad will come of it, but if the wrong tolerance changes in the wrong direction, you now have a badly scored/seized injection pump.
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mknittle (01-31-2017)
01-31-2017, 10:05 PM
#28
Banned
Well I see that some still don't beleive or understand how applying water over a running or warm injection pump can cause harm to it, I offer this advise. Call an injection pump repair facility and ask them if it's ok, then call 3 more shops and ask the same question. Let me know what they have to say. Best to ask questions first than to assume it's ok just because you don't have the understanding of why it's not ok.
In the end it doesn't matter to me if you want to use water for a troubleshooting tool, I could care less. Some of us just tried to warn you of the dangers of doing such a thing, one from previous experience while working at a fuel injection shop, others from a basic understanding of how an injection pump operates. It's your engine and your pump do as you like, just don't ask us why it's acting up next time you use water as a troubleshooting tool.
In the end it doesn't matter to me if you want to use water for a troubleshooting tool, I could care less. Some of us just tried to warn you of the dangers of doing such a thing, one from previous experience while working at a fuel injection shop, others from a basic understanding of how an injection pump operates. It's your engine and your pump do as you like, just don't ask us why it's acting up next time you use water as a troubleshooting tool.
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02-01-2017, 10:05 AM
#30
Registered User
Well I see that some still don't beleive or understand how applying water over a running or warm injection pump can cause harm to it, I offer this advise. Call an injection pump repair facility and ask them if it's ok, then call 3 more shops and ask the same question. Let me know what they have to say. Best to ask questions first than to assume it's ok just because you don't have the understanding of why it's not ok.
In the end it doesn't matter to me if you want to use water for a troubleshooting tool, I could care less. Some of us just tried to warn you of the dangers of doing such a thing, one from previous experience while working at a fuel injection shop, others from a basic understanding of how an injection pump operates. It's your engine and your pump do as you like, just don't ask us why it's acting up next time you use water as a troubleshooting tool.
In the end it doesn't matter to me if you want to use water for a troubleshooting tool, I could care less. Some of us just tried to warn you of the dangers of doing such a thing, one from previous experience while working at a fuel injection shop, others from a basic understanding of how an injection pump operates. It's your engine and your pump do as you like, just don't ask us why it's acting up next time you use water as a troubleshooting tool.
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bigragu (02-01-2017)