I replaced the mechanical fuel pump on my Atomic 4 a couple of years ago. Very easy rebuild although getting the mounting bolts back in was a bit of a challenge. The old one was working fine but I just did it as a PM project given that the engine was almost fifty years old and thought it was about due. I took the easy way out on the carb-just purchased the Moyer replacement which has worked several years now just fine.
Greg Alimenti Cara Mia 1977 C&C 29 St. Joseph, MI From: Della Barba, Joe via CnC-List <cnc-list@cnc-list.com> Sent: Tuesday, June 3, 2025 1:21 PM To: Don Kern <don-k...@cox.net>; Stus-List <cnc-list@cnc-list.com> Cc: Della Barba, Joe <joe.della.ba...@ssa.gov> Subject: [EXTERNAL] Stus-List Re: [EXTERNAL] Re: A4 Fuel Pump (was Atomic 4 Carburetor Cleaning) Both gas and diesel engines can benefit hugely from a fuel pressure gauge. I have had odd issues I never would have discovered otherwise. Joe Della Barba Coquina C&C 35 MK I From: Don Kern <don-k...@cox.net<mailto:don-k...@cox.net>> Sent: Monday, June 2, 2025 5:56 PM To: Stus-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> Cc: Della Barba, Joe <joe.della.ba...@ssa.gov<mailto:joe.della.ba...@ssa.gov>>; Randy Stafford <randal.staff...@icloud.com<mailto:randal.staff...@icloud.com>> Subject: [EXTERNAL] Re: Stus-List A4 Fuel Pump (was Atomic 4 Carburetor Cleaning) Quite a few years I replaced the mechanical fuel pump with a Moyer electric fuel pump kit. No problem with the installation and it worked well until the block cracked. The Moyer replacement engine came with all the upgrades and some that I didn't expect. Don Kern Fireball, C&C35-2 Bristol, RI On 6/2/2025 11:52 AM, Randy Stafford via CnC-List wrote: Have any of you Atomic 4 owners ever rebuilt your fuel pump using the Moyer kit? Or installed one of their electric fuel pumps? I’ve overhauled the electrical/ignition and cooling systems on my A4, and plan to overhaul the fuel system next. I suspect my fuel pump may not be operating well. Cheers, Randy SV Grenadine C&C 30 MK I #79 Ken Caryl, CO On Jun 2, 2025, at 8:02 AM, Della Barba, Joe via CnC-List <cnc-list@cnc-list.com><mailto:cnc-list@cnc-list.com> wrote: Remember Moyer Marine has a series of photos of the engine from every angle so you can see what you are trying to do. I have found out that past a certain point, you need a new carb. They seem to have a zinc coating of some kind that can start to dissolve and clog them back up after cleaning. If cleaning becomes a routine chore, it is probably time for another one assuming you have good filters. Joe Della Barba Coquina C&C 35 MK I Your contributions help pay the fees associated with this list and help to keep it active. Please help by making a small contribution using PayPal at: https://www.paypal.com/paypalme/stumurray All contributions are greatly appreciated.
Your contributions help pay the fees associated with this list and help to keep it active. Please help by making a small contribution using PayPal at: https://www.paypal.com/paypalme/stumurray All contributions are greatly appreciated.
