Fuel leak on top part of fuel pump

[snookhooked]

I am back again with a fuel leak that squirt under pressure. I know its the square O ring style on my 1992 150 Hp Evinrude Elence. It has four screws but one in the back corner isn't accessible other than I remove PUMP AY,VAPOR out of the way but then I am thinking I would have to get another seal/ O ring. Does this make any sense to anyone? I have to remove the top to replace the leaking seal but they didn't make it an easy task without having to remove parts. My question is more getting ideas on how to do this without removing anything unnecessary. Thanks for any help.

 

[Silvertip]

Re: Fuel leak on top part of fuel pump

Sometimes there is no option but to remove other things to get at the item needing repair. It's just part of the process. Pay attention or take pictures BEFORE you start the process and continue as you move further along so you know how things go back together. Sometimes there just aren't any shortcuts. Trying to create one when there aren't any means you risk breaking something.

 

[bob johnson]

Re: Fuel leak on top part of fuel pump

seals-gaskets are one thing, true O-rings that seal OD's and ID's, should be ok to reuse , unless the leak if known to come from that area.

on that fuel component bracket there are a few o-rings used on OD's that engage another part of the bracket assy , that would ok to removed and replaced with out buying a new o-ring.

the" seals" that seal two flat surfaces , might need to be replaced , if removed..


good luck

there are so many places on that fuel bracket assenbly that can give you grief.....lots of places for air to get in.... or fuel or vapor to get out, how ever you want to put it.

good luck

bob

 

[snookhooked]

Re: Fuel leak on top part of fuel pump

Thanks for the information. I know I will have to buy a Philips that has the 90 degree to get to that one screw. They are O rings and the one is bad since its leaking and I bought that one. I will be doing pics as normal since they are very important. I look on the Crowley website and it didn't show any seal or O ring. thought that was odd but I'm sure there is a reason for that. I just thought its best to get some views before I did the job. I am currently looking for my manual as well since my wife claims she didn't move it.lol.

You are correct Bob, they can give one grief. think they designed it that way.

 

[snookhooked]

Re: Fuel leak on top part of fuel pump

Thanks for the information. I know I will have to buy a Philips that has the 90 degree to get to that one screw. They are O rings and the one is bad since its leaking and I bought that one. I will be doing pics as normal since they are very important. I look on the Crowley website and it didn't show any seal or O ring. thought that was odd but I'm sure there is a reason for that. I just thought its best to get some views before I did the job. I am currently looking for my manual as well since my wife claims she didn't move it.lol.

You are correct Bob, they can give one grief. think they designed it that way.

Update: I found out after looking everything over, it was a very simply change and is completed. Thanks Guys

 

[kenmyfam]

Re: Fuel leak on top part of fuel pump

Update: I found out after looking everything over, it was a very simply change and is completed. Thanks Guys

And the problem is now solved ???

 

[seahorse5]

Re: Fuel leak on top part of fuel pump

You may not have known but those are not Phillips head screws, they are Pozi-Drive which have extra notches in them. They were used often in the automotive industry some years back. Using a Phillips wallows out the cross-slot and may cause the screw heads to strip out sometime.

On the plastic parts, I doubt that there is enough torque to severly damage the screws, but the ones threaded into aluminum components are likely to give problems.

 

[snookhooked]

Re: Fuel leak on top part of fuel pump

Didn't know that but Thanks for the information. I will look up some tools for that. I believe the leak will be fixed but wont know 100% till I put some fuel in the boat and give it a try. I have heard of the Pozi Drive but never had to get them but maybe its time to look for a set.

Next is cleaning the carburetors since it has sat for a few months now. They are very simply but never could solve the sneezing problems in two of the Carburetors. I was told this was common on these motors.

 

[bob johnson]

Re: Fuel leak on top part of fuel pump

are you trying to take the vapor seperator cover off?? you should just take the whole fuel component bracket off and deal with it on a bench

if you are taking the carbs apart, then now is the time to address the leaking bb shot in the bowls...either buy new bowls or get a larger shot..and glue

bob

 

[snookhooked]

Re: Fuel leak on top part of fuel pump

are you trying to take the vapor seperator cover off?? you should just take the whole fuel component bracket off and deal with it on a bench

if you are taking the carbs apart, then now is the time to address the leaking bb shot in the bowls...either buy new bowls or get a larger shot..and glue

bob

The leak in the bowl above the fuel pump is working great now so that's cured.

I got her back up and running but I just cant get that darn sneeze to stop. Its in the bottom right side carburetor. ( looking at it from the carb side) but my left bottom car is now leaking very little ( not severe enough to do a rebuild) I am going to take it apart and clean it and check the seals. I know I can order new seals through Crowley Marine if needed. I have taken and cleaned every carburetor more than once but never seem to cure the sneeze that happens in mostly two on opposite sides but this time, its only one. It has done this since the day the motor was bought. you can be idling around and it will shut off but start right back up with a bump of the key and run right out of the hole or even a slow starting. its like it doesn't like pushing the boat in idling mode. great motor though.

Bob Im not sure of the BB you speak of since I have never saw one. its a 1992 150 Elence, that's the motor.

This is a link to the carburetor. OMC, Johnson & Evinrude - CARBURETOR AND INTAKE MANIFOLD - 1992 Johnson/Evinrude 150

 

[bob johnson]

Re: Fuel leak on top part of fuel pump

the BB's are plugging a casting hole in the plastic bowl.... you said your carbs were leaking...I guess i assumed they were leaking from that BB hole....which is VERY common. you can see the BB on the starboard carbs, but you cant see them on the port carbs

as for your sneeze...it could be a lean sneeze...which could mean you have a leak in your carb or manifold ....have you replaced the gasket from the manifold to the motor??


have you turned your idle adjustement needle in and the turned out 3 turns?? thats the start for setting the idle mixture.. but id make sure you are not getting air in behind any of the gaskets under the carb and manifold ect

bob

 

[snookhooked]

Re: Fuel leak on top part of fuel pump

the BB's are plugging a casting hole in the plastic bowl.... you said your carbs were leaking...I guess i assumed they were leaking from that BB hole....which is VERY common. you can see the BB on the starboard carbs, but you cant see them on the port carbs

as for your sneeze...it could be a lean sneeze...which could mean you have a leak in your carb or manifold ....have you replaced the gasket from the manifold to the motor??


have you turned your idle adjustement needle in and the turned out 3 turns?? thats the start for setting the idle mixture.. but id make sure you are not getting air in behind any of the gaskets under the carb and manifold ect

bob

There is no screws to adjust on these carbs. If you look at the link above. they are what seems to be more air controlled from what I can see on them. They are a very simple lay out that only requires more replacement of the gaskets and blown clean. This is the first carbs I have ever dealt with that didn't have idle screws. Just a plain jane carb.

 

[bob johnson]

Re: Fuel leak on top part of fuel pump

There is no screws to adjust on these carbs. If you look at the link above. they are what seems to be more air controlled from what I can see on them. They are a very simple lay out that only requires more replacement of the gaskets and blown clean. This is the first carbs I have ever dealt with that didn't have idle screws. Just a plain jane carb.

oops sorry, it seems they didnt add the idle adjustemnt needle till 1994......


bob

 

[snookhooked]

Re: Fuel leak on top part of fuel pump

oops sorry, it seems they didnt add the idle adjustemnt needle till 1994......


bob

NP, Bob.
I believe it controlled by air and vacuum. Its the first carb with no needle adjustments.lol Thanks for the help.