WD45 Diesel won’t start
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=177426
Printed Date: 16 May 2025 at 9:07pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WD45 Diesel won’t start
Posted By: Mike R. in Maine
Subject: WD45 Diesel won’t start
Date Posted: 10 Jan 2021 at 1:30pm
| I bought this tractor after it’s sat for 6-8 years. The fuel tank was empty and the fuel filters didn’t look ancient..but I replaced them all, removing the bleeder on the primary gives me good flow, after cranking I have fuel from the intermediate filter and as it is cranking there is fuel going back into the tank thru the return. I’ve given it a few whiffs of crack fluid and it will ignition knock but nothing more... I’ve had the starter rebuilt, it’s in a warm shop with a torpedo heater, and I removed the valve cover to make sure all valves are moving freely. I did loosen the center four injector lines at the injectors and nothing comes from there.... I hate to jump to removing the pump till I’ve tried everything.. so I’m hoping someone can tell me what I’m not going right....happy for any help & wisdom |
Replies:
Posted By: injpumpEd
Date Posted: 10 Jan 2021 at 1:34pm
|
If it's been sitting that long, and you just started trying to start it, you've likely already ruined the head in the pump. Those are very difficult to find parts for. Last one I had in here took me over a year to find parts for. My recommendation for any PSB pump equipped engine is to make sure it turns easy first, and everything is clean inside. It's not like you can just get a new pump lol! ------------- 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: Mike R. in Maine
Date Posted: 10 Jan 2021 at 1:42pm
| what would you recommend at this point? Any other tests or steps? I’m only guessing when it last ran, and the motor certainly cranks over fine? |
Posted By: injpumpEd
Date Posted: 10 Jan 2021 at 1:53pm
|
If it's not pumping fuel to the injectors out the loosened lines, it's a good bet the head is seized in the pump. Now you have to find a good one, that someone is not trying to gouge you on. Good luck! Those pumps are definitely a thorn in the side to us in the fuel injection world. Nobody makes the hard parts anymore. Pump time. ------------- 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: ac45dave
Date Posted: 10 Jan 2021 at 2:39pm
|
copied from Tom Foss' sight http://allis01.com/" rel="nofollow - http://allis01.com/ Here are the parts that go into the head with a pointer at the part that usually breaks if you force a stuck pump to turn.  If one is unfortunate enough to have the plunger twist off, that's the long shaft beside the head, then it is scrap. ------------- 54 wd-45gas ; 56 wd-45d N/F w/fact p/s ; 63 d-17 sIII N/F gas ; 60 D14 N/F ; 67 d-17 sIV N/F gas ; 63D15 sII W/F; 39rc#667 ; 2021 massey 4710 fwa ; gravely 2 wheel tractors |
Posted By: injpumpEd
Date Posted: 10 Jan 2021 at 3:05pm
|
I did have 1 come in that the key the pencil is pointing to had broke and saved the plunger. I was able to get it apart and saved it. Unfortunately when someone keeps cranking and pulling them trying to start them, it ends up snapping the plunger, long skinny piece in pic.
------------- 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: Larry in NC
Date Posted: 10 Jan 2021 at 3:13pm
|
https://www.ebay.com/itm/Allis-Chalmers-WD45-Diesel-Fuel-Injection-Pump/203239806645?hash=item2f520956b5:g:1T8AAOSwQHVf3-1B%20" rel="nofollow - https://www.ebay.com/itm/Allis-Chalmers-WD45-Diesel-Fuel-Injection-Pump/203239806645?hash=item2f520956b5:g:1T8AAOSwQHVf3-1B
Just for information.
|