Fuel adjustments on a 3B?

[Island Moose]

My fuel pump is unlike others that I have seen, but I was hoping someone can tell me how to (and whether to) adjust the fuel delivery. I have no black smoke at all, even under load, so I'm wondering if I should dial it up a bit. Here's a picture, please feel free to copy and arrow the adjuster.

 

[crushers]

until you turbo it, I would leave it alone, as dad always said, if it isn't broken don' "fix" it...
I wish I could live by that philosophy...
;^)

 

[Island Moose]

until you turbo it, I would leave it alone, as dad always said, if it isn't broken don' "fix" it...
I wish I could live by that philosophy...
;^)

Well I agree, but my power seems somewhat lacking (of course, what do I compare it to?), and I'm concerned that the truck was leaned out to pass regs in Vancouver. The complete lack of black smoke while under load concerns me as well.

 

[crushers]

see if you can meet up with someone else that has a BJ42 or a BJ70 and compare. the 3B is gutless, reliable but has the speed of a snail on prozac...
;^)
cheers

 

[lowenbrau]

You've got a rotary pump whereas 3B's that came here with Toyota Canada got inline pumps. The switch was made AFTER 1985 when the 3B was no longer imported.

FTR 3Bs with inline pumps came to Canada through the 1987 model year. In 1988 the only 3Bs that came into the country were in BJ75 mine trucks which had rotary pumps.

FWIW every Jap spec 3B I've seen has had a rotary pump, even as old as 1982.

 

[Diescipel]

see if you can meet up with someone else that has a BJ42 or a BJ70 and compare. the 3B is gutless, reliable but has the speed of a snail on prozac...
;^)
cheers

I gotta second that. I used to think the 2F/FJ60 was slow. 3B==> slow and steady.

B

 

[Island Moose]

Alright already...it's slow...so how do I adjust the fuel mixture?...hijack my thread why don't you?

 

[crushers]

the is a flat head screw on the pump near the top on the block side with a 12 MM lock down nut. loosen the lock down, turn out flat head 1/3 turn, lock down the 12mm and go for a drive, you need a hill and full throttle, as soon as you see black smoke then stop fiddling...
;^)
"hijackers are us"

 

[crustyBJ60]

you're in vic right?

pm or email off line and i can give you a hand, even with my VERY limited, or at least point you in the right direction here on the island for 3b help/parts/tuning.

crusty

 

[brownbear]

my 84 60 blows no black. but it revs right up. isn't that the sign of under fueling? the 3b manual say something about it to be adjusted to 4200 rpm. or so. manual not here right now. why give it more fuel.? these engines have fawk all for power anyhow. you will have the tree huggers on the island chasing you in the vw vans. and with a 3b they just might get ya. save for a turbo. talk to radd cruisers. he's on the island. he sells them. 2700 or so.

 

[brownbear]

I meant if it doesn't rev right up to 4200, isn't that the sign of not fueling enough?? had to clarify.

 

[Island Moose]

the is a flat head screw on the pump near the top on the block side with a 12 MM lock down nut. loosen the lock down, turn out flat head 1/3 turn, lock down the 12mm and go for a drive, you need a hill and full throttle, as soon as you see black smoke then stop fiddling...
;^)
"hijackers are us"

Crushers...damn if I can't find the screw you describe. Is it in the picture?

 

[tlcruiserman]

Just a little more information for you

The rotoray pump on 3B Was Late 87 if that, I think it would be very rare to see one on a Canidian BJ70, even an 87'

I agree with wayne on the adjustment, you want to adust it until you rarely get a little black smoke on a hill, no more than that.

As far as a Turbo, I would recomend AXT I have done several of these and they turn out real nice, ah the ones I seen on 3B's from that other places seem to have a smaller turbo and do not provide as much or the appropriate boost for the 3B. It all comes down to you get what you pay for, it you want to do it right and get all you can out of your 3B spend the extra and go with AXT.

One other alternative I would suggest, and it is something I will be doing myself next time, instead of buying a turbo, go out and get a 13BT, you will not regret it and you can pick them up for a reasonable price these days, and more and more or showing up every day.

Just my 2cents.

Cheers,

Michael

 

[Island Moose]

No, the safety wire was gone, so I do suspect an "adjustment". I've backed it out 1/3 turn, and still nothing in terms of black smoke under load. Nevertheless, that's all I'm going to do for now.

 

[Greg_B]

FTR 3Bs with inline pumps came to Canada through the 1987 model year. In 1988 the only 3Bs that came into the country were in BJ75 mine trucks which had rotary pumps.

FWIW every Jap spec 3B I've seen has had a rotary pump, even as old as 1982.

Now that is interesting Bruce...Thanks.

Any BJ70 imported by Toyota Canada for sale to the public will be an inline pump.

Mine use 3B's were rotory after 1987 AFAIK.

All 13BT's I have seen are inline pumps...

Moose, make sure you run a good conditioner with each tank [Howes or Stanydene (spelling??)] are two that seem to be used the most.

hth's

gb