653 Crawler Injection Pump Pressure
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=163904
Printed Date: 12 Nov 2024 at 1:01pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 653 Crawler Injection Pump Pressure
Posted By: jrtruckn
Subject: 653 Crawler Injection Pump Pressure
Date Posted: 26 Aug 2019 at 5:56pm
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I’m new to the forum and have searched but unable to locate an answer to my question. I recently purchase a 653 crawler that hasn’t been run for 6 years. Motor turns over easily but I can’t seem to get it to fire. I’ve replaced the fuel filter, checked and cleaned the sediment bowl and checked the screen on the injector pump. There appears to be plenty of fuel getting to the injector pump but when I disconnect the line at the injectors the fuel seems to barely come out. Injection pump: Roosa Master model DBGFC 433-1jn My question is how much pressure should there be going into the injector from the pump? |
Replies:
Posted By: Tracy Martin TN
Date Posted: 26 Aug 2019 at 5:59pm
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Probably stuck plungers and or cutoff. Injector ED can fix you up. Tracy ------------- No greater gift than healthy grandkids! |
Posted By: jrtruckn
Date Posted: 26 Aug 2019 at 7:35pm
| I’m sorry who or what is “Injector ED”? |
Posted By: Jim.ME
Date Posted: 26 Aug 2019 at 8:44pm
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InjpumpED You can find his info in the memberlist and send him a PM. He operates a diesel injection repair service. |
Posted By: NomoreJohnDeere
Date Posted: 26 Aug 2019 at 10:47pm
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make sure the fuel shut off is not off is it manual or electric solenoid? ------------- HD3 |
Posted By: jrtruckn
Date Posted: 27 Aug 2019 at 4:03pm
I checked the shut off twice after filter replacement because that would be a boneheaded move that I would do! If you’re talking the pump it is manual. |
NomoreJohnDeere wrote:Posted By: SteveM C/IL
Date Posted: 30 Aug 2019 at 9:31pm
| They say the metering valve can get stuck. I think you can fiddle with it with the top cover off the pump. I know nothing about it just heard it talked about. |
Posted By: injpumpEd
Date Posted: 07 Sep 2019 at 11:21am
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Quite often injection pumps get gummed up and stuck from sitting in old fuel. I just tore down a 4010 pump yesterday that had sat a long time but it actually ran, well it ended up seizing the head and breaking the driveshaft. The fuel inside looked like syrup. Now a much more costly repair. Lesson here is, just because it will run, doesn't mean it should be forced to run in the junk fuel. When in that shape, it should be pulled off and sent to a competent fuel injection specialist. ------------- 210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers! |