Fuel bleeding procedure
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=129415
Printed Date: 02 May 2025 at 4:16pm
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Topic: Fuel bleeding procedure
Posted By: Tbone95
Subject: Fuel bleeding procedure
Date Posted: 30 Sep 2016 at 8:45am
| Changed fuel filter on 7045. Can someone advise on the basic bleeding process? I've tried what I thought was sensible so far...Stanadyne pump if there is an option or differences |
Replies:
Posted By: bigredisb
Date Posted: 30 Sep 2016 at 11:00am
|
I cant give you any specifics but here is what I do on all makes of diesels that I have had to bleed. Open or remove the bleed screw or plug on the filter housing(s) and prime with the manual lever if equipped or open the housing and left them fill with gravity. I then crack the injector line at the nozzle. I usually just pick the easiest ones to get to. Leave it open a bit and crank until you see fuel leaking then tighten. Normally I have to do 2 or three injectors to get them to pop off and run a bit. BE CAREFUL, the fuel is under a lot of pressure and can injure you and shoot all kinds of places if opened up too much. ------------- 1961 Allis-Chalmers D15 1949 Farmall Super A |
Posted By: MACK
Date Posted: 30 Sep 2016 at 8:50pm
| On a 7045, remove the small plug on bottom of pump (takes a 3/8 wrench). Pump hand primer until all air is out, replace plug and pump primer up tight. Should start unless you have already pumped air in lines, if so pump primer, spin engine over a few times and pump primer again. May have to do it a few times before it starts. MACK |
Posted By: Tbone95
Date Posted: 03 Oct 2016 at 6:55am
|
Thanks for the replies guys. And a big thanks to Ivan. |
Posted By: thendrix
Date Posted: 03 Oct 2016 at 7:27am
|
My only experience is with a Long but it should work with most any CAV pump. Crack the bleeder screw(s) on the pump and pump/crank until you get fuel out of them. This is where an electric pump is nice. Next I crack all 4 injectors and let the electric pump run until I start to get fuel in all 4. Then tighten the injectors and turn it over until it cranks. Might need a little help (ether) but it usually starts and runs good. I start mine at about 1/2 throttle. This way works for me. ------------- "Farming is a business that makes a Las Vegas craps table look like a regular paycheck" Ronald Reagan |
Posted By: Tbone95
Date Posted: 03 Oct 2016 at 7:46am
Well, thanks. But this was on Friday, I've long since got it going. And actually, this procedure wouldn't quite cut it as it turns out. |
thendrix wrote:Posted By: flem1951
Date Posted: 08 Apr 2022 at 9:56am
| I am having the same problem. I cant get fuel out of the upper vent on the pump nor the top of the fuel filter. |
Posted By: DrAllis
Date Posted: 08 Apr 2022 at 10:27am
| You've got to be specific....what MODEL tractor ?? |