Real Time: 3b fuel priming issues

[samwise]

Ive recently replaced some of my fuel lines as I was suddenly getting air in the fuel, not really sure why? Might have nicked one when moving them around underneath.
I have everything back together, but I cant get the primer to bring a solid stream, it still has air in it, lots of air, not just bubbles. I have now gone through a gallon of fuel and it still has tons of air(using the clear hose). I have gone back over the fuel line, but cant find anything amiss.

I have read all the threads I can find, but cant seem to get the air out. I plan to replace the priming pump with a bosch, but my current one still works.

Any help would be great as this is my daily driver. Thank you!!

Jon

 

[keving]

I wouldn't search to hard elsewhere until that primer pump has been replaced.

 

[samwise]

Alright, I replaced the primer pump, no change though. I pump and pump and I get a mixture of diesel and air, I have a hose from the nipple to a container with diesel(per FSM), and keep getting air bubbles, lots of them. I read that you should be able to prime the whole system in 30 pumps, I did a lot more than that.
I bypassed the sedimenter in case it was faulty and still the same.
There is fuel in the tank.
Thanks to Lost marbles I bled the IP as described as well, but still cant get a constant stream of fuel, lots of air.
Possibly something with the pick up in the tank?
Any help would be great. Thanks.

 

[samwise]

Fuel tank?

Ok, I looked further back.
Question?:
Is the hard line that comes off the fuel tank and is the main fuel line supposed to move at the tank? Could someone reach under there and see?
I can flex it around with little effort, this is where the hard line starts at the tank. It doesnt go in and out, just moves around some. I would like to know if this is normal or not, if not I guess I will drop the tank
Thanks!

 

[lostmarbles]

Ok, I looked further back.
Question?:
Is the hard line that comes off the fuel tank and is the main fuel line supposed to move at the tank? Could someone reach under there and see?
I can flex it around with little effort, this is where the hard line starts at the tank. It doesnt go in and out, just moves around some. I would like to know if this is normal or not, if not I guess I will drop the tank
Thanks!

I think you may have found your problem.

I suspect your fuel line was rusted where it enters your tank (fuel pick-up) and probably fractured when you moved it around while replacing your rubber hoses.

(It shouldn't wobble around easily.)

 

[snowboardonsnow]

I had one almost rusted out there, replaced it I believe with a gasser one.

 

[samwise]

Thanks for the help!
The hard line was broken at the fuel tank. After pouring diesel all over my garage, then wrestling the tank for hours, and taking a wheel off, I was able to get it low enough to get at the fuel suction tube. What a bear! I dont know how I would actually get the thing off. With the larger shackles, OMe etc I dont know how it would be able to be dropped completely without taking the rear shackles off. Mine has had the frame repaired so maybe that changes things?
I ordered a new fuel suction tube thingy, only problem is it has a return line (fj60), mine doesnt. Snowboard thanks for the gasser idea.

Any good idea that is long lasting to block the return hard line?

Thanks again, and Lostmarbles, your previous posts on similar issues have been great, thank you.

 

[lostmarbles]

...Any good idea that is long lasting to block the return hard line?....

Well this is what I did to seal the fuel line on my spare engine (once I had the line, fuel pump, IP and filter all full of fresh diesel):



A stainless bolt, short length of hose and some hose clamps.

 

[snowboardonsnow]

Crimp it bend it and solder the end. Or a little section of hose with a plug. Just make sure you do the right one

 

[snowboardonsnow]

That's right, I am running the gasser one, but the frame and body was a gasser as well so I just hooked up the old fuel return line and capped it in the engine. It all just came back to me. But yah crimp and solder will last forever. You you can't solder then crimp bend and jb weld.

 

[kim]

I've dropped the tank in 3 different 60 series to replace the pickup. you will probably have to partially remove your shackles to get the tank on the ground. I doubt your frame will be in the way, other than the rear tire carrier which has to be removed.

For the return on the fj60 pickup, just put a hose on it and plug it like others have said. If your pickup screen ever plugs, you can swap the lines and use the return for a feed.

Thanks for the help!
The hard line was broken at the fuel tank. After pouring diesel all over my garage, then wrestling the tank for hours, and taking a wheel off, I was able to get it low enough to get at the fuel suction tube. What a bear! I dont know how I would actually get the thing off. With the larger shackles, OMe etc I dont know how it would be able to be dropped completely without taking the rear shackles off. Mine has had the frame repaired so maybe that changes things?
I ordered a new fuel suction tube thingy, only problem is it has a return line (fj60), mine doesnt. Snowboard thanks for the gasser idea.

Any good idea that is long lasting to block the return hard line?

Thanks again, and Lostmarbles, your previous posts on similar issues have been great, thank you.

 

[snowboardonsnow]

For the return on the fj60 pickup, just put a hose on it and plug it like others have said. If your pickup screen ever plugs, you can swap the lines and use the return for a feed.

It doesn't go as low if my memory recalls. Actually neither of mine had a pickup screen either now that I think of it, both pre 83s

 

[samwise]

Thanks for the help! Forgot about the simple hose and bolt plan. I think the one I ordered has the pickup screen. Now just waiting till it gets here, and having my wife drive me around with 3 kids.
I am thankful for my garage with the all the rain that has been coming down. (nothing compared to you in the East).

Jon

 

[kim]

It doesn't go as low if my memory recalls. Actually neither of mine had a pickup screen either now that I think of it, both pre 83s

No, it doesn't go as low but when your screen plugs, you won't care much. it goes to about an inch from the bottom of the tank. I pondered the idea of adding a hose to the end of the 'return' so that it reached the bottom but I can't remember if I did it or not.

 

[snowboardonsnow]

I wonder when they started coming with screens?
Another thing I did was change the little phillups bolts to allen heads, a few of them almost had the rusted head strip out figure if I needed in there again I would appreciate it.

 

[Schnurrman]

Fuel sender

Hey guys I've worked on a ton of old Toyotas (actually build new Ravs) and all of my 4Runners had an access panel right over top of the sending unit. This changed a $450 repair to about $50 (didn't have to drop the tank) I'm currently looking into buying a FJ60 to go along with my FJ40 and I expect a panel on it as well. I've even seen them on Corollas and Camrys in the 80's. Give this a check, it may be worth your while!

 

[kim]

Hey guys I've worked on a ton of old Toyotas (actually build new Ravs) and all of my 4Runners had an access panel right over top of the sending unit. This changed a $450 repair to about $50 (didn't have to drop the tank) I'm currently looking into buying a FJ60 to go along with my FJ40 and I expect a panel on it as well. I've even seen them on Corollas and Camrys in the 80's. Give this a check, it may be worth your while!

Yes, the 60's have an access panel for the sending units but not for the fuel pickups. To change this you need to drop the tank.