Anyone familiar with a zexel fuel pump?

[sh40]

Anyone know about these zexel fuel pumps? Where

is the increase fuel screw?

 

[Wisconsonian]

They're mostly bosch licensed pumps, so if you can't find the info for the zexel model, look for the similar bosch pump. I'd guess the cover on the right is a max rack travel limiter, but that might not be what you want, might want it to give more fuel early vs more top fuel.

 

[sh40]

They're mostly bosch licensed pumps, so if you can't find the info for the zexel model, look for the similar bosch pump. I'd guess the cover on the right is a max rack travel limiter, but that might not be what you want, might want it to give more fuel early vs more top fuel.

Yes I want to give it more fuel early on.

 

[Wisconsonian]

As best I can tell, the adjustment is under the big hex plug on top of the governor section. I'd adjust it half a turn out and see how it acts, the screw under the plug not the plug itself. Just keep track of where you started so you can put it back the same if it's not right.

 

[sh40]

As best I can tell, the adjustment is under the big hex plug on top of the governor section. I'd adjust it half a turn out and see how it acts, the screw under the plug not the plug itself. Just keep track of where you started so you can put it back the same if it's not right.

You can't draw a circle around the one you mean just so that I have the right one to try to begin with

 

[Wisconsonian]

It's the only hex plug on top that's not an injector line fitting. I'm not entirely sure that's what's under there, but that's where I'd look.