450E Dozer fuel

[jimjo2]

I have a 450E dozer that I changed the fuel filter on and now it won't start and the new filter is full of fuel. It appears I have to bleed it somehow but I'm not sure how to do it. Is there any help out there?

 

[TnAndy]

Usually there is a bleed screw/bolt on the injector pump. Not familiar with the 450E, but my guess is it would have one.

Otherwise, you have to crack the fuel lines loose at the injectors to get the air out.

 

[thepumpguysc]

No bleed on the pump.. just loosen the lines AT the injectors.. no need to take them off, just loosened a few turns.. as many as you can get to..

 

[Sawyer Rob]

I just loosen one line, (at the injector) all the air will go to that line and get out. AND have the throttle wide open...

When the engine starts, it will run rough, close the line and it will soon smooth out...

SR

 

[EddieWalker]

I completely remove the line off of my injectors and and manually pump the fuel until I get clear diesel coming out of them without any air bubble. They I attach them loosely and pump them again to make sure there are no air bubbles. Sometimes it wills start with the lines on loose, but usually I'll tighten them up and that's when it fires up. There is a lever on the fuel pump on all my tractors. I ran a 450G for a few months, but never an E model. I would be surprised if there wasn't a manual lever on the fuel pump for your tractor.

Did you fill up the fuel filter with new fuel before installing it? If not, it's going to take forever for it to fill up.

Be sure that the entire fuel line is clean. From the pickup in the tank, through every filter and pump on the way. My Case dozer has a two fuel filters, a screen in the fuel pump and another through away inline filter that I added to it. Sometimes the rust from inside the tank will get inside the line and plug it up. Use an air compressor to blow out the lines. All of them, before and after every part along the way to the injectors.

Is there a glass bowl on the bottom of your fuel pump? Is it clear? There is a small screen in all of my tractors inside that clear bowl that needs cleaning out too.

 

[Tx Jim]

Eddie Walker
Are you implying that with inj lines loose that you can move lever on transfer pump & force air out of inj lines? If so I have to see that to believe it. That would require much more pumping than I'd care to endure. On contrary to bleed diesel engine I use short bursts of compressed air blown into fuel tank neck opening blocked off by shop towel to force fuel to IP.

 

[EddieWalker]

I'm not sure what a transfer pump is. On the fuel pump, on all four of my tractors, there is a lever that you move up and down by hand. This will pump the fuel manually. With the lines removed from the injectors, it's just a simple matter of time until you get clear, bubble free, diesel fuel to come out the end of the lines.

I've never heard of, or thought of your way of doing it. I fail to see how compressed air is going to force fuel in the tank past the fuel pump, the filters and the injector pump. If it works for you, that's great. I doubt that it would work for me.

 

[EddieWalker]

Eddie Walker
Are you implying that with inj lines loose that you can move lever on transfer pump & force air out of inj lines? If so I have to see that to believe it. That would require much more pumping than I'd care to endure. On contrary to bleed diesel engine I use short bursts of compressed air blown into fuel tank neck opening blocked off by shop towel to force fuel to IP.

I just glanced at the video quickly, but saw what I was describing

Diesel, bleeding fuel injector - YouTube

 

[Sawyer Rob]

On contrary to bleed diesel engine I use short bursts of compressed air blown into fuel tank neck opening blocked off by shop towel to force fuel to IP.

I do the same thing IF it's been run out of fuel...well kinda..

I get help, and have them keep the air pressure in the fuel tank, while I open lines to get all the air out, to the pump, then I open one line at the injector and crank the engine, (as I said in the earlier post) they start pretty fast doing that...

SR

 

[Tx Jim]

I watched the video and that's a different method to bleed air to injectors than I was thought back 50 yrs ago. Granted I've never bleed the fuel system on a Volvo engine. Lift pump aka transfer pump aka hand pump aka primer pump. The youtube video that followed the video you posted a link to is exactly how I was taught to bleed air out of inj lines by turning over engine therefore using inj pump to force air out of inj lines. Fuel System Bleeding - YouTube

 

[thepumpguysc]

NOW NOW Fellas.. the tutorial is of a COMPLETELY different animal than what the post has..
There IS NO WAY to pump a hand primer & get fuel to or thru the injectors.. PERIOD..
Unless you have a 450E or KNOW fuel injection pumps.. I suggest you bow out. Gracefully..

 

[CCWKen]

Man, I've got that routine down pat for my Ford 3910. :ashamed: I've had a couple of long walks back to the barn to get 9/16" and 5/8" wenches. Then have to ask for a ride to carry a can of diesel out to the tractor. Swing the battery out of the way and loosen the injector lines. Crank until no bubbles appear. Tighten lines and it usually fires right up. Without a working fuel gauge you'd think I'd carry diesel and wrenches. I check the level before I start but time gets away from you when you're having fun. That's my story and I'm sticking to it.

 

[EddieWalker]

NOW NOW Fellas.. the tutorial is of a COMPLETELY different animal than what the post has..
There IS NO WAY to pump a hand primer & get fuel to or thru the injectors.. PERIOD..
Unless you have a 450E or KNOW fuel injection pumps.. I suggest you bow out. Gracefully..

Are you saying the 450E does not have a mechanical handle on the fuel pump?

If you can't do it manually, then you will be spinning your starter until it gets the air out of the lines. You might want to have a battery charger or jumper cables on hand. Is the 450E 12 volt or 24 volt?

 

[EddieWalker]

Just a quick google search to see what the fuel pump looks like on a 450E shows this one for sale. It clearly has a mechanic handle on it for pumping the fuel by hand. Which is what it was designed to do. It also looks like it has the clear glass bowl on the top. On my tractors, which are not Deere, there is a screen inside there that needs cleaning out regularly.

RE27667 AR52159 DD13483 DD14195 RE37482 RE42211 RE2211B RE42211 - Discounted all Tractor Parts Catalog

 

[larboc]

I just loosen one line, (at the injector) all the air will go to that line and get out. AND have the throttle wide open...

When the engine starts, it will run rough, close the line and it will soon smooth out...

SR

No need or reason to hold the throttle wide open. At cranking speed the fuel/stroke delivery amount is fixed.

 

[Sawyer Rob]

BUT, once it starts, it cleans out faster... (the air out)

SR

 

[jimjo2]

I took the easy route. I put some fuel is a spray bottle, removed the air intake hose to the throttle body, cranked it over and it started instantly by spraying fuel into the throttle body.