450 injection pump

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SEAL
40C crawler
40C crawler
Posts: 22
Joined: Sun Aug 09, 2009 10:38 am
Location: Bent Mountain, Va.

450 injection pump

Post by SEAL » Mon Jul 23, 2018 12:34 pm

I have a JD450 ser# 251. The injection pump has developed a significant leak so I have decided to rebuild it. I have ordered the SM-2045 service manual that corresponds to the JDB431 pump on the machine. I am a pretty fair mechanic but have never done an injection pump and would appreciate any input that anyone might want to share.

Any updates or mandatory parts that should be replaced beyond the obvious soft parts?

Are there any part #s for basic rebuild kits out there to save from having to order individual parts? Might there be a list of parts that I will definately need?

Are there any parts dealers that are better, cheaper, more reliable, or more honest than others (for these parts) in your experiences?

Any recommended web sites I should know about before I start this project?

All input will be appreciated. Thank you.
Any day you wake up breathing is a good day and the only easy day is yesterday.

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77 Ford
1010 crawler
1010 crawler
Posts: 477
Joined: Tue Nov 22, 2011 7:52 pm
Location: Missouri

Re: 450 injection pump

Post by 77 Ford » Tue Jul 24, 2018 7:12 am

If you read this post you'll find some very good information from DrLoch:

viewtopic.php?f=8&t=11706&p=64441&hilit=drloch#p64441

However, when I ran down all the parts and tools I found the cost was going to be about $200 for me to do it myself. I found a place that would do it for $414 bucks including freight both directions http://www.dcpcart.com/OScart/product_i ... pump-p-274

I've had my pump back for several months without issue.

Good luck.
JD- 450C track loader
Serial #208336T

hogbare
MC crawler
MC crawler
Posts: 5
Joined: Tue Jun 12, 2018 12:49 pm
Location: West Alabama Greene county

Re: 450 injection pump

Post by hogbare » Thu Jul 26, 2018 12:30 pm

Ford 77
Thanks for that info. I'm going to check those guys out. Had a problem with my 450c pump last fall, after 4 trip to the rebuilder and $3000.00 of my money I guess they got it right. On the first rebuild it did not run 3 hour before it came apart. The next one lasted about 5 hours. Live and learn, bet you I don't use that bunch again.

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