Return to the home page...

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

Reply
 
Thread Tools Display Modes
  #1   IP: 107.77.224.215
Old 10-07-2021, 01:47 PM
Kevinstone Kevinstone is offline
Senior Member
 
Join Date: Dec 2014
Posts: 23
Thanks: 0
Thanked 5 Times in 3 Posts
Restarting issue

Iím having restarting issues after engine has been run for a while. Shutting down to go through a lock does not want to start easily. Cranks for a while before starting. Cold start takes 2 seconds of cranking. Runs perfect when running. Assumed it was coil so swapped that with new. Same issue. Also installed new dist cap and rotor. I have electronic ignition so no points. After sitting a bit. Starts like a champ. Plugs are new look fine no fouling

Any thoughts from the group?
Reply With Quote
  #2   IP: 72.10.126.194
Old 10-07-2021, 02:39 PM
CRUX CRUX is offline
Senior Member
 
Join Date: Nov 2019
Posts: 26
Thanks: 31
Thanked 11 Times in 7 Posts
I had similar restarting issues. Started first time every time cold. Once it had ran, it would only restart after multiple cranks with the throttle wide open and no choke.

Ended up being the float valve not seating correctly.
Reply With Quote
  #3   IP: 47.142.138.236
Old 10-07-2021, 03:29 PM
JOHN COOKSON JOHN COOKSON is online now
Afourian MVP, Professor Emeritus
 
Join Date: Nov 2008
Posts: 3,480
Thanks: 51
Thanked 828 Times in 606 Posts
Ae you using any choke when you warm start? A properly tuned A4 needs brief full choke to start even when the engine is warm.

ex TRUE GRIT
Reply With Quote
  #4   IP: 24.61.95.61
Old 10-07-2021, 03:53 PM
ArtJ ArtJ is offline
 
Join Date: Sep 2009
Posts: 2,089
Thanks: 156
Thanked 50 Times in 41 Posts
There was a ignition shutdown a few years ago due tocoil being overheated
by a type of electronic ignition. The group here found the issue and came
up with a recommended series dropping resistor solution.

I believe this issue does not occur with the ignitor ignition.

Best Art
Reply With Quote
  #5   IP: 45.49.35.172
Old 10-07-2021, 08:20 PM
Ando's Avatar
Ando Ando is offline
Senior Member
 
Join Date: Jul 2019
Location: San Pedro, CA
Posts: 244
Thanks: 311
Thanked 58 Times in 38 Posts
Howís your oil pressure (at ignition and after running for a while)?
Reply With Quote
  #6   IP: 32.211.28.40
Old 10-08-2021, 10:07 AM
Al Schober's Avatar
Al Schober Al Schober is offline
Afourian MVP
 
Join Date: Jul 2009
Location: Uncasville, CT
Posts: 1,855
Thanks: 12
Thanked 439 Times in 326 Posts
I too am thinking this could be a mixture issue.
An A4 that's working right needs choke when it's cold, but no choke when it's warm. If you're starting easily when cold, you might be running rich.
Suggest checking that the choke is opening fully and that the flame arrestor screen isn't clogged. The height of the floats in the float bowl could also be off, allowing too high a fuel level in the float bowl.
I also like the adjustable main jet - in spite of it's tendency to clog more readily that a fixed jet.
Reply With Quote
  #7   IP: 107.77.224.215
Old 10-08-2021, 04:35 PM
Kevinstone Kevinstone is offline
Senior Member
 
Join Date: Dec 2014
Posts: 23
Thanks: 0
Thanked 5 Times in 3 Posts
Iíve checked all the suggestions already thank you. The next mystery is that if I shutdown and restart immediately it starts fine. Wait 10 minutes and I have to crank for a while. Iíll change fuel pump tomorrow to rule that out. I have no fuel pressure gauge installed
Reply With Quote
  #8   IP: 155.186.122.195
Old 10-08-2021, 05:26 PM
Dave Neptune Dave Neptune is offline
Afourian MVP, Professor Emeritus
 
Join Date: Jan 2007
Location: Lake Arrowhead Ca.
Posts: 4,498
Thanks: 553
Thanked 750 Times in 509 Posts
First try using the choke after 5 minutes then start throwing parts at it.

A good running A-4 SHOULD BE HARD TO STAR WHEN WARM as it is an "updraft carb" which almost always will need the choke. The choke has breathers designed specifically for this issue.

Dave Neptune
Reply With Quote
The Following User Says Thank You to Dave Neptune For This Useful Post:
W2ET (10-09-2021)
  #9   IP: 107.77.224.215
Old 10-08-2021, 05:31 PM
Kevinstone Kevinstone is offline
Senior Member
 
Join Date: Dec 2014
Posts: 23
Thanks: 0
Thanked 5 Times in 3 Posts
Thanks Dave. Thing is that this is a new issue. Traveling the locks we try to shut down when locking and always restarts with no choke until now that is
Reply With Quote
  #10   IP: 107.77.223.218
Old 10-09-2021, 05:01 PM
Kevinstone Kevinstone is offline
Senior Member
 
Join Date: Dec 2014
Posts: 23
Thanks: 0
Thanked 5 Times in 3 Posts
Choke operation checks out ok. Swapped out electronic ignition and that seems to have solved it. Thanks everyone
Reply With Quote
The Following User Says Thank You to Kevinstone For This Useful Post:
Dave Neptune (10-10-2021)
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
Another intermittent shut down issue Muntasel Troubleshooting 26 08-13-2020 04:07 PM
Seized and broken valves from hot exhaust issue. Mo Troubleshooting 1 06-08-2020 04:28 PM
possible fuel issue? MN John Fuel System 39 10-02-2016 11:45 AM
possible ignition issue? indigo E.I. MN John Ignition System 4 08-13-2016 05:27 PM
Just Another Power Loss Issue Bruce A Troubleshooting 33 06-16-2010 02:21 PM


All times are GMT -4. The time now is 05:49 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2021, vBulletin Solutions, Inc.


Universalģ is a registered trademark of Westerbeke Corporation

Copyright © 2004-2021 Moyer Marine Inc.

All Rights Reserved