Now I am concearned about my pump

Anonymous-0 · Apr 17, 2011

From my last post about my JD rooser master injuction making small pieces and plugging the glass check valve. I read about, if I keep running it I have a chance of a run away motor if the pump fails. I sure don't want that to happen. I would like to get a little more into my mowing season, before I remove the pump for a rebuild. I would like to run the tractor about 50 more hrs.Any thoughts? Stan

Mike (WA) · Apr 17, 2011

Yeah- if its broke, fix it. Before it goes south completely.

Or, to paraphrase Dirty Harry, "Do you feel lucky, punk? Well, do ya?"

Motorcraftman · Apr 17, 2011

I can understand ur situation But Personally,... I would pull the Plug on it, and repair Now! Larry

David G · Apr 17, 2011

It will only get worse.

CCer · Apr 17, 2011

Check with your local pump shops. Some have rebuilds on hand, you pick one up, trade yours in, you install the rebuild, then you pay for what yours cost to repair.

Fullthrottle · Apr 17, 2011

I didn't tell you to do this,but,take a small punch and poke out the glass ball in the fitting,that will stop the trash from plugging it. It's kinda like throwing the dice in Vegas. I'd bet a dollar to a hole in a rolln donut it never makes 50 hours though.

msb · Apr 17, 2011

You run the risk of some serious damage to the pump if you keep running the tractor.Knocking out the glass ball should nevr be done. Its in there for a purpose. I would rather you simply remove the fitting and replace it with a straight elbow until you get the pump rebuilt.Either way the return line will probably get plugged.

DeltaRed · Apr 17, 2011

Fix it NOW!If you wait,you could get to buy a whole new pump,instead of haveing a minor repair.Plus it will fail just when you need it the worst.

Anonymous-0 · Apr 17, 2011

I am relieved, when I first read your post I thought you were having heart problems.

onefarmer · Apr 17, 2011

I kept an eye on ebay and picked up a deal. A rebuilt pump for $495. Same JD number and everything. This was for a 4020

NCWayne · Apr 18, 2011

Being a mechanic by trade I'll probably get bashed for saying this but knock the ball out and run the thing the 50 hours you need until you can get it rebuilt. I've been in this business all my life and although your right about the chance of it possibly 'running away' the chance is very, very, very slim that it's gonna happen within the next 50 hours. I wouldn't say this if I thought it was gonna 'blow up on you' that quick, but I've seen engines run for years with the ball knocked out without 'blowing up'. If your that worried about things, keep something handy to block the intake if it should happen run away just to be safe. Good luck.

Tx Jim · Apr 18, 2011

I agree with msb on leaving the glass check-ball intact. It's there to give the pump lubrication and cooling. Low sulfur diesel needs all the help it can get for lubrication especially in rotary inj. pumps.

As to blocking air intake I think a rod would be through block before one could get off a JD utility tractor and access an air intake opening.

Anonymous-0 · Apr 18, 2011

This is not what most are sating but I punched out the glass valve and spring on my white backhoe and used it over 20 yrs after that before rebuilding the pump a few years ago. It still was just a regular rebuild.

CCer · Apr 18, 2011

I've just learned that horizontal drive shaft pumps like yours just get more erratic. The vertical drive shaft pumps are more likely to stick full speed.

Now I am concearned about my pump

Anonymous-0

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Mike (WA)

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Motorcraftman

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David G

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CCer

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Fullthrottle

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msb

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Anonymous-0

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