Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1
  • 2

TOPIC:

1964 Evinrude 40 HP Big Twin cutting out 08 Sep 2020 02:23 #107356

rushwal wrote: Ok, I see 2 fuel pumps for Evinrudes. The small square one (18-7350), and the larger 'house' shaped one (18-7352). I have the small square one on my motor, but every one of those say it's for up to 18 HP motors. Should I have the larger one on my 40 HP motor?


Interesting discovery!

I think I'd stick with the small one so as not to have to worry about going to fast.
.

Just getting used to the lay of this land.
The following user(s) said Thank You: rushwal

Please Log in or Create an account to join the conversation.

1964 Evinrude 40 HP Big Twin cutting out 08 Sep 2020 01:22 #107355

  • rushwal
  • rushwal's Avatar Topic Author
  • Offline
  • Helmsman/Woman
  • Helmsman/Woman
  • Posts: 2147
  • Thank you received: 724
Ok, I see 2 fuel pumps for Evinrudes. The small square one (18-7350), and the larger 'house' shaped one (18-7352). I have the small square one on my motor, but every one of those say it's for up to 18 HP motors. Should I have the larger one on my 40 HP motor?

Please Log in or Create an account to join the conversation.

Last edit: by rushwal.

1964 Evinrude 40 HP Big Twin cutting out 08 Sep 2020 00:59 #107353

  • rushwal
  • rushwal's Avatar Topic Author
  • Offline
  • Helmsman/Woman
  • Helmsman/Woman
  • Posts: 2147
  • Thank you received: 724
The question is... who hasn't done it.

unclbuz wrote: I'm sure y'all aren't as dumb as I, but a similar thing happened to me and after paddling back to the dock I discovered that I forgot to open the vent on the gas tank...duh.

Please Log in or Create an account to join the conversation.

1964 Evinrude 40 HP Big Twin cutting out 08 Sep 2020 00:57 #107352

I never close my vents, is that a bad thing?
Click here for information on Vintage Mercury Restorations
Lake life is the best life
jump in a boat and go
1957 Clipper / 1969 Merc 1000

Please Log in or Create an account to join the conversation.

1964 Evinrude 40 HP Big Twin cutting out 08 Sep 2020 00:53 #107351

It's is possible that you have something bouncing around in front of the high speed jet. There is a plug on the front center of the carb that gets removed and with a jet screwdriver you can remove the main jet. I have heard of plastic like particles found in this area. Evidently the particle would fall away from blocking the jet when the engine died and the get pulled up to block the jet when running at speed.



It does sound like the fuel pump though. If you could have someone pump steady on the primer bulb when you are running at high speed on the lake and if it keeps running fine then it is the fuel pump.

IMO, this is the step in the diagnosis that you haven't tried.
.

Just getting used to the lay of this land.
The following user(s) said Thank You: rushwal

Please Log in or Create an account to join the conversation.

1964 Evinrude 40 HP Big Twin cutting out 08 Sep 2020 00:43 #107350

Locomotion wrote: I would rebuild or replace the fuel pump from the symptoms.

My thoughts exactly ;)
"friends to the end."- Russ Cleaton
The following user(s) said Thank You: rushwal

Please Log in or Create an account to join the conversation.

1964 Evinrude 40 HP Big Twin cutting out 08 Sep 2020 00:42 #107349

  • JR
  • JR's Avatar
  • Offline
  • Powder Monkey
  • Powder Monkey
  • Posts: 1712
  • Thank you received: 565

unclbuz wrote: I'm sure y'all aren't as dumb as I, but a similar thing happened to me and after paddling back to the dock I discovered that I forgot to open the vent on the gas tank...duh.

Ha! Don, I had atag on the dash of the Flyer “open the vent dummy”
1956 Golden Rocket, 1955 Vagabond, 1957 Crestliner Voyager Hardtop, 1958 Crestliner Jetstreak 15, past boats: 54 Vagabond, 55 Vagabond, 57 Vagabond, 50 FC Flyer, 46 FC Runabout, 57 FC Rocket, 57 Jetstreak

Please Log in or Create an account to join the conversation.

1964 Evinrude 40 HP Big Twin cutting out 08 Sep 2020 00:26 #107347

I would rebuild or replace the fuel pump from the symptoms.
Proud Owner of 1956 Vagabond, 1950 Flyer, 1956 Rocket, Co-owner 1952 Flash, 10-1/2 less than VinTin
The following user(s) said Thank You: rushwal

Please Log in or Create an account to join the conversation.

1964 Evinrude 40 HP Big Twin cutting out 08 Sep 2020 00:17 #107346

The tuner gets sprayed into the carb as the motor is running.
It might not be the answer you are looking for but it will give a really good cleaning if perhaps there is some blockage.
Click here for information on Vintage Mercury Restorations
Lake life is the best life
jump in a boat and go
1957 Clipper / 1969 Merc 1000

This message has an attachment image.
Please log in or register to see it.

The following user(s) said Thank You: rushwal

Please Log in or Create an account to join the conversation.

1964 Evinrude 40 HP Big Twin cutting out 07 Sep 2020 23:28 #107344

I'm sure y'all aren't as dumb as I, but a similar thing happened to me and after paddling back to the dock I discovered that I forgot to open the vent on the gas tank...duh.
“I would rather have a mind opened by wonder than one closed by belief.” Gary Spence

Please Log in or Create an account to join the conversation.

  • Page:
  • 1
  • 2
Time to create page: 0.121 seconds

Forum Statistics

  • Total Users:2359
  • Latest Member:Foster
  • Total Posts:101k
  • Total Topics:7349
  • Total Sections:9
  • Total Categories:24
  • Today Open:0
  • Yesterday Open:0
  • Today Answer:2
  • Yesterday Answer:27

Top Posters

Top Posters Posts
jabe 5833
VinTin 5270
Locomotion 5013
sgower 4789
Eagle127 4736
Boatboy 4167
BigBadJon 3922
unclbuz 3165
Carol 2989
DrChip 2769

Contact

How to get ahold of Us

www.feathercraft.net Command Central
52457 Robins Drive
New Baltimore, Michigan 48047

Support

Events

Event Coordinator
info@feathercraft.net

 

Log in

Register



property of:

Feather Craft Technologies - Copyright © 2016 www.feathercraft.net