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JD 455E crawler injector replacement


 
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Lynny
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Joined: 01 Sep 2011
Posts: 26
Location: Connellsville P.A.

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PostPosted: Sun Jun 16, 2013 7:22 am    Post subject: JD 455E crawler injector replacement Reply to specific post Reply with quote

Working on jd 455e injectors out of engine are marked 24188 it is a 4276T engine what number injector do I need to replace them. Cant find anything listed to replace that number thanks for the help.
 
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MSM
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Joined: 05 Jun 1999
Posts: 1468


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PostPosted: Sun Jun 16, 2013 9:59 am    Post subject: Re: JD 455E crawler injector replacement Reply to specific post Reply with quote

New injector Part# RE37503 need 4......Reman injectors (set of 4)part# SE500824
 
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Lynny
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Joined: 01 Sep 2011
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Location: Connellsville P.A.

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PostPosted: Sun Jun 16, 2013 1:21 pm    Post subject: Re: JD 455E crawler injector replacement Reply to specific post Reply with quote

MSM wrote:
(quoted from post at 10:59:05 06/16/13) New injector Part# RE37503 need 4......Reman injectors (set of 4)part# SE500824
Thanks msm that's what I thought but wasn't sure I put 4 in has new pump cleaned the lines new filter new fuel still wont fire getting fuel to injectors but not thru them
 
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Richard E Gwinn
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PostPosted: Wed Jul 17, 2013 2:31 am    Post subject: Re: JD 455E crawler injector replacement Reply to specific post Reply with quote

Hello, it sounds to me like maybe the fuel pressure isn"t high enough to make the injectors pop off. The pop off point on the injectors is very high. It will take at least 40 or 45 PSI from the injecter pump and then when it goes threw the injecter itself the pressure will go to something like fifteen thousand psi to make the injecter pop off and spray the proper shape pattern into the combustion chamber. When it does the compression stroke should raise the temp high enough for the fuel to hit the flash point and then you should have ignition. If all that takes place the engine should start running. You have to of course have a strong enough battery or a pony motor that can spin the engine fast enough to make heat in the cylinders. Good luck I hope you can figure out the problem. If the injectors are popping off and she still doesn"t start the next thing to check is the valves to make sure they are adjusted properly and make sure the rings aren"t broken or woren completely out. If they are you will not get enough compression to get her to fire off. If you are getting fuel to the injecter and it isn"t spraying out of the nossil that makes me think that the pop off pressure isn"t being met. Take the nossils or injectors out and take them in to a JD shop and have them bench tested to make sure they are popping off at the right pressure. If they don"t pop off at the right pressure it will never run. You may have defective injectors or maybe the wrong ones. Good luck. R G the first standing by.
 
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