Farm Equipment - psb pump

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psb pump

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=18643
Printed Date: 07 Feb 2025 at 4:58am
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Topic: psb pump

Posted By: tom
Subject: psb pump
Date Posted: 23 Sep 2010 at 4:15pm

still havingtrouble with my 45d pump. brought it to a diesel shop charged $150 told me they found a valve stuck and it was ok. it still wont inject on no.2 i could almost swear on my life they never even looked at it. can the head unit be repaired? Gonna try and get time to remove the pump and have alook at it myself. Any help with what to look out for would be a great help. fed up with guys taking the P***

Replies:

Posted By: Butch(OH)
Date Posted: 23 Sep 2010 at 7:44pm

Look up Ferguson diesel service, Austin MN and ask David. Not sure if he is still working on pumps or retired, he can either fix it or reccommend someone that can.

Posted By: Chris/CT
Date Posted: 23 Sep 2010 at 7:44pm

Have 3 pumps here if you need another. 860-306-5946

Posted By: j.w.freck
Date Posted: 23 Sep 2010 at 9:10pm

call jim at the turbo shop in blanchard louisiana.he has worked on injection pumps of all kinds for 40 years.took my psb pump to him and had it and the injectors run.works like a new one

Posted By: TramwayGuy
Date Posted: 23 Sep 2010 at 9:24pm

Have you had the injector tested on #2??? If it is stuck, putting another pump on it would not be good.

Posted By: Michael Crowe
Date Posted: 23 Sep 2010 at 9:34pm

Since the Bosch PSB pump only has one plunger, it can't be the pump that is not pumping on only one cylinder, it has to be your injector. if it were the pump, it would do the same for every cylinder.

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The 14th Annual Exclusive AC Swap Meet will be held in Boonville, MO, March 7-8, 2025. See the club website for details: http://www.moacclub.com/

Posted By: tom
Date Posted: 24 Sep 2010 at 2:38am

it's not the injector i have tested it. took the injector pipe off of no.6 and no.2 cranked the tractor over and would get diesel shot about 6 or 8 inches in the air but no. 2 would just dribble about half the volume. the tractor runs real good just, not on no.2. I have put new rings, got head done, injectors done, new clutch, new bearings, would really like to get her running 100% after putting a good deal of time and a lot of bucks into her.

Posted By: injpumpEd
Date Posted: 24 Sep 2010 at 6:34am

I have seen psb heads be bad, and have weak cylinders. be sure to check your line! I have seen lines plug up with debris, or the ermeto sleeve(ferrule) crush the line down closing up the hole. PSB heads are not readily available new from ambac, but we have had success sending them out to be remanufactured. Best to find a good used one. good luck! Ed.

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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!

Posted By: tom
Date Posted: 24 Sep 2010 at 12:30pm

the lines are good.took the head of the pump this morning hope to have a closer look tonight.