Fuel pump vent

Hey everyone, I just bought a Sierra marine fuel pump, but it didn’t come with a place to hook up the vent tube to the spark arrestor. There is a Allen key nut on the side. Was wondering if I can remove that and add a brass barb? Has anyone had a similar issue? Please go easy:) brand new boater here and far from a mechanic. But I want to learn. Thanks in advance!

If it looks like the pump on the left in the picture, that has a black barbed fitting sticking out, then the pump is a Sierra version of the original way back when (in the 70's)  AC dual diaphragm marine fuel pump and you can remove the plug and screw a fitting in there for your ruptured diaphragm hose.

Glad to help Joe 

Keno, now that looks pretty old school. I have read on the forums about the glass bowl fuel pumps, but never seen one. So thanks for that! I bought a 1986 ski nautique 2001 last summer, it has been nothing but problems so far. But trying to get all the bugs worked out on her. Just replaced the stingers, floor, flotation foam and carpet. Now on to the engine, last summer it would start great every time at the ramp, sit there and idle in the lake perfect. I would go pick my wife up from the dock and cruse over to this cool cove with no issues. But that’s when the troubles would start, after sitting for a couple hours she would struggle to start, she would die at low rpms in no wake zone a major struggle above 1500 rpms. So I bought a new quick fuel carb, a new fuel pump and new fuel lines. If the problem persists I guess it is electrical? Basically I have no idea what I am doing and trying to figure it out along the way. Hopefully we figure it out this summer! Thanks again for your help!

Joe

JSConstruction wrote: Keno, now that looks pretty old school. I have read on the forums about the glass bowl fuel pumps, but never seen one. So thanks for that! I bought a 1986 ski nautique 2001 last summer, it has been nothing but problems so far. But trying to get all the bugs worked out on her. Just replaced the stingers, floor, flotation foam and carpet. Now on to the engine, last summer it would start great every time at the ramp, sit there and idle in the lake perfect. I would go pick my wife up from the dock and cruse over to this cool cove with no issues. But that’s when the troubles would start, after sitting for a couple hours she would struggle to start, she would die at low rpms in no wake zone a major struggle above 1500 rpms. So I bought a new quick fuel carb, a new fuel pump and new fuel lines. If the problem persists I guess it is electrical? Basically I have no idea what I am doing and trying to figure it out along the way. Hopefully we figure it out this summer! Thanks again for your help! Joe

I installed a fuel filter/water separator last summer. The old fram filter literally had 3in. Of rust in the bottom of it.

By struggles to start I mean it turns over but won’t start, takes about 15-20 tries and she finally gets going. But then runs extremely rough and dies out of no where. Where I am absolutely stumped is why its runs perfect in the beginning of the day and then after she sits for a bit starts to act up? It’s an unsolved mystery at this point.

Thank you for the heads up on the gasket! Much appreciated!

Joe

Gary S

Thank you! I am praying it is the fix!

Joe

Fanofccfan

Thanks for the heads up! I have to find a fuel outlet for the new carb first. Unfortunately it doesn’t come with one.

Keno, I was thinking barb fittings with marine grade fuel line. But I really like that Sierra fuel line. Thanks again! You have been a great help! Have a great weekend!

Joe

67 ski nat

I am not the best at taking pics. I do wish I would have taken more during the stringer and floor process. Didn’t realize what I was in for, once I came to terms with the amount of work it really was going to be, I kinda just put my head down and got after it.

We are at Sonoma all the time, we have a 86 2001 white and blue. Hopefully I see you out there, assuming I can get her dialed in haha.

Have a great one

Joe