help with Johnson fuel pump

[Campylobacter]

Hi, I have a new-to-me 1991 40 HP Johnson, the PO took off to the VRO and never bothered to put back on a fuel pump

(read http://forums.iboats.com/johnson-evinrude-outboards/how-much-would-you-invest-johnson-edit-pictures-added-640165.html to get the whole story.

I got a new fuel pump today, but of course I don't have the mounting screws. Anybody know what size screws/bolts I need to get to fix this thing on? I tried a couple of bolts from my collection, but the holes had mud in from daubers and I didn't want to force anything in case I got the wrong size and stripped them.

Here is a pick where the "normal" pump should go, I think? Holes are marked with red arrows:



Any other advice for a noob doing this conversion?

 

[racerone]

Re: help with Johnson fuel pump

They are 10-24 NC ----Remove the plug ( pulse hole ) between the screw holes.--Need the gasket too.------Pulse hole for VRO should be plugged

 

[Campylobacter]

Re: help with Johnson fuel pump

They are 10-24 NC ----Remove the plug ( pulse hole ) between the screw holes.--Need the gasket too.------Pulse hole for VRO should be plugged

Thanks for the reply, I'll get the screws. The new pump came with a gasket.

The guy plugged the pulse hole for the VRO by cutting the hose and inserting a bolt. The fitting is a brass nipple that the manual says is a check valve? Any advice on if the bolt is OK or if I should get a replacement for the brass fitting?

 

[boobie]

Re: help with Johnson fuel pump

Remove the brass fitting and get a brass pipe plug for it. Looks neater. By the way, that is the pulse limiter.

 

[Quickdraw2112]

Sorry about the typos

 

[Duds]

Hey guys quick question I have 90 Johnson and taking vro off as it’s not used and put normal pump on boat boat running super rich and barely runs any idea whu

 

[racerone]

There are different 90 HP models.----Post picture or model #.

 

[Daviet]

Since this post is so old, you should start a new one.