hi i am new and having trouble with carb on 82 720

[datzenmike]

22 minutes ago, i need help & guidance said:

i found this

rebuild kit with accelerator pump

 

it has the part i need .. total is $ 39

 

That's a good price if re-building it, a bit steep just for one part.

 

 

19 minutes ago, i need help & guidance said:

i also found this carb .

but it is for the z24 engine it says

 

carb

 

3 hours ago, datzenmike said:

The 720 gas engines were all Hitachi.

The L20B was 340 or 30/34

The Z22 was a 342... or 32/34mm

The Z24 was a 384 or 34/38mm bore. Unfortunately one of the stud holes on this carb does not match all the others so it won't swap. 

 

 

I just measured and confirmed this. The accelerator pumps are likely all the same but just to be safe order for a Z22 truck..

 

 

Also too cheap to be good. It says from Australia but I bet it's trans-shipped from China. A factory carb, if you could find one today, would be well over $860

[i need help & guidance]

i passed the smog test !!! 

[weldingrod]

Re; fuel check valve. Two lines to carburetor- one from fuel pump, other returns to check valve and into tank.

[i need help & guidance]

egr needed new gasket

[i need help & guidance]

accelerator pump was bad

[i need help & guidance]

the replacing

[i need help & guidance]

tried to clean old parts

[i need help & guidance]

had to file (smooth) the old nylon sleeve thing which surrounds the pump,

since the rebuild kit does not include 1 of these

[i need help & guidance]

putting new pump in

[i need help & guidance]

 new pump installed .

[i need help & guidance]

page 1 of sheet that came with new pump

[i need help & guidance]

page 2

[i need help & guidance]

page 3

[datzenmike]

 

 

 

I think that plastic is bakelite. It's also used on the piston on the front oil bath struts...