Return to the home page...

Go Back   Moyer Marine Atomic 4 Community - Home of the Afourians > Discussion Topics > Fuel System

Reply
 
Thread Tools Display Modes
  #1   IP: 172.58.38.247
Old 10-27-2018, 04:10 PM
geekeasy geekeasy is offline
Senior Member
 
Join Date: Feb 2013
Location: Oakland, CA
Posts: 64
Thanks: 3
Thanked 1 Time in 1 Post
Fuel pump only works using primer...

I'm trying to get my engine running again after half a rebuild.

There seems to be an issue with the fuel pump. I can pump fuel through it with the hand primer, but when I'm turning over the engine just using the starter it doesn't pump any fuel at all.

Any idea what might be wrong?

Thanks!
__________________
Kiki
Ericson 35 - #282
Reply With Quote
  #2   IP: 172.58.38.247
Old 10-27-2018, 04:58 PM
geekeasy geekeasy is offline
Senior Member
 
Join Date: Feb 2013
Location: Oakland, CA
Posts: 64
Thanks: 3
Thanked 1 Time in 1 Post
P.S. This is the mechanical pump. And by primer, I mean the built-in lever on the side.
__________________
Kiki
Ericson 35 - #282
Reply With Quote
  #3   IP: 97.93.70.7
Old 10-27-2018, 05:09 PM
Dave Neptune Dave Neptune is offline
Afourian MVP
 
Join Date: Jan 2007
Location: Lake Arrowhead Ca.
Posts: 3,875
Thanks: 376
Thanked 301 Times in 214 Posts
When you "rebuilt" did you remove and replace the plunger that pushes on the pump arm?

Dave Neptune
Reply With Quote
The Following User Says Thank You to Dave Neptune For This Useful Post:
ndutton (10-27-2018)
  #4   IP: 24.152.132.140
Old 10-27-2018, 05:12 PM
ndutton's Avatar
ndutton ndutton is offline
Afourian MVP
 
Join Date: May 2009
Location: Torrance, CA
Posts: 8,327
Thanks: 131
Thanked 1,118 Times in 747 Posts
My first thought too. Confirm the integrity of the push rod that rides against the camshaft.
__________________
Neil
1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
Reply With Quote
  #5   IP: 172.58.38.247
Old 10-27-2018, 06:44 PM
geekeasy geekeasy is offline
Senior Member
 
Join Date: Feb 2013
Location: Oakland, CA
Posts: 64
Thanks: 3
Thanked 1 Time in 1 Post
You guys are both right.

I found the part, but it's a bit rusty. I've sanded it down but I'd rather replace it.

Does anyone know the actual name or better yet a part number for the pushrod or plunger?
__________________
Kiki
Ericson 35 - #282
Reply With Quote
  #6   IP: 24.152.132.140
Old 10-27-2018, 06:56 PM
ndutton's Avatar
ndutton ndutton is offline
Afourian MVP
 
Join Date: May 2009
Location: Torrance, CA
Posts: 8,327
Thanks: 131
Thanked 1,118 Times in 747 Posts
Available from Moyer Marine:
https://moyermarine.com/product/mech...d-fpmp_13_366/
__________________
Neil
1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
Reply With Quote
  #7   IP: 207.118.20.35
Old 10-29-2018, 11:49 AM
capnward's Avatar
capnward capnward is offline
Afourian MVP
 
Join Date: Aug 2012
Location: Deer Harbor WA
Posts: 190
Thanks: 5
Thanked 49 Times in 39 Posts
If you rebuilt the fuel pump, I found this old jpg file showing how the pump can be reassembled incorrectly. Maybe this happened to you. Note the 'incorrect' orientation of the bar connecting the pushrod to the diaphragm. I'm not sure how this works, never having taken my pump off the engine and looked at this mechanism. It looks as if the diaphragm would not go up if the bar is installed that way, but the bail would still move the diaphragm. Hope this helps. The pushrod looks like a very simple part that not much could go wrong with, but maybe it wore down. I thought crankcase oil would have kept it from going rusty, and not sliding well as it emerges from the engine. Good Luck, and keep us posted.
Attached Images
 
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel Pump Troubleshooting Question sdemore Fuel System 7 08-13-2018 07:39 AM
Fuel pump question ... Robs Hubris Fuel System 49 06-20-2018 02:51 PM
Mechanical fuel pump rebuild services Don Moyer Fuel System 40 01-14-2013 11:17 AM
wiring for fuel pump Mark Jones Catalina 11 08-27-2010 07:35 PM
Facet fuel pump notes rigspelt Fuel System 3 01-03-2009 01:31 PM


All times are GMT -4. The time now is 07:46 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.


Universal® is a registered trademark of Westerbeke Corporation

Copyright © 2004-2019 Moyer Marine Inc.

All Rights Reserved