• If this is your first visit to the iboats.com Boating Forums, be sure to check out the FAQ. To post a question or comment, begin by signing up. To start viewing messages, select the forum that you want to visit from the selection below.
  • ALL iboats Forum Members and Guests:
    To show our appreciation for your participation in the Forums, we're offering an exclusive Forums-only discount good for an additional 5% off your iboats.com order for a limited time.
    To redeem, simply call our Customer Service Team at 800-914-1123 (Open M-F, 9am - 8pm Eastern Time) and mention the Forums 5% off discount. Offer excludes engines, trolling motors, and electronics.

Announcement

Announcement Module
Collapse

Help Tip: If you have a question that has not been answered to your satisfaction in the archives, it is always best to start a new thread of your own. By starting your own thread, you will receive the maximum number of views by forum members.

Below are some additional forum policies in hopes of all iboats members will follow, Thank you.

1. Please do not reply to old threads or hijack existing threads. Old threads of a technical nature are like a library book, Please do not write in them.

2. Old threads should be considered archives and used for reference only. Please do not reply to them.

3. Do not take over someone elseís thread (aka hijack) with your own question, even if it is similar. If you have a question that has not been covered to your satisfaction in the archives, it is always best to start a new thread of your own.

4. If you have a question for the original poster (OP) and the thread is over 30 days old, send the OP a PM, he may not even visit the forums any longer, or may not notice your question in the old thread.

5. By starting your own thread, you will receive the maximum number of views by forum helpers that may not even notice your question when itís posted at the end of someone elseís thread. And those answers will be specific to your particular issue.

6. Please do not post to threads that have been inactive for more than 3 months unless you are the original poster. We have very active forums and any thread that remains inactive for that long should be considered "dead". It is especially confusing when there is an entirely new question posted to an old thread.

7. Posting at the end of any thread is considered to be hijacking the original posters thread which in turn subjects the thread to be closed if it continues to happen thus not making it fair to the original poster in the future had for some reason he/she needed to return for additional information or provide an update of the problem solved which is always welcomed within a reasonable amount of time frame.

8. Please note that you should see a red banner pop up near the bottom of each inactive thread asking you not to reply to old threads. The Red banner will read: Please note this thread has been inactive for 90 days. For the best results, please start a new thread.

Thank you all in advance for doing your part in helping iboats run a smooth ship.

Additional forum rules linked below.
http://forums.iboats.com/forum-rules-guidelines-405/
See more
See less

Electric fuel pump??

Page Title Module
Move Remove Collapse
X
Conversation Detail Module
Collapse
  • Filter
  • Time
  • Show
Clear All
new posts


  • Electric fuel pump??

    Well no I need a new fuel pump for my Merc.100 bucks. I was gonna put a electric fuel pump on it,(much cheaper). Any ideas about it? The manual says 5-6.5psi so thats not a problem. The only thing I'd have to do is make a block off plate. Off hand I can't think of a reason not to do it...am I over looking something?Thanks again


  • #2
    Re: Electric fuel pump??

    Firewood,Take your f/pump off and replace the dighram in it. Might cost a whole 10.00 Not a hard job either.Best of luck.

    Comment



    • #3
      Re: Electric fuel pump??

      It will work -- we do it all the time on race boats but there are a few things to understand. Wherever you put the pump the lines will be under pressure from that point on. Most fuel delivery systems are designed to have the fuel pulled thru them not pressured thru them. Any small fuel leak or weeping you may get becomes a stream.Keep in mind that in an emergency if the cutoff switch is pulled the pump will contine to run. The Coast Guard and your insurance company frown on that.The electric fuel pumps on fuel injected motors are tied to some sort of back up shut off device like a float switch or tied into the oil pressure (4 cycle).If for some reason the pump blows fuel past the needle and seat you can pump a gallon of fuel out in a very short time. And in a very confined space. Ever seen a hood blow off in an explosion?I would try the 10.00 diaphram first. But that's just me.Good luck!

      Comment



      • #4
        Re: Electric fuel pump??

        Mercruiser has been running electric fuel pumps on and off for years. From my experience in the parts business I would stick to the mechanical pump. I have seen to many electric pump failures.****

        Comment



        • #5
          Re: Electric fuel pump??

          I did some shopping around at the local marine store and my automotive store. I had descided to go with a new mechanical for 70 bucks. I didn't know I could replace the diaphram in it. Merc doesn't sell the diaphram, you have to buy the whole unit. Where or who do I get it from? or is it just not available for my model?.In the mean time I dissassebled my old one, nothing looked wrong, (the diaphrams had no holes but they did look less then new) I put it back together and what do you know it works! I ran the engine for a few minutes. Now I havn't had a chance to put a pressure gauge to see if its maintaining pressure while I rev the motor, but its a start. I'd really like to replace the internal parts of the pump if possible. Just a matter of getting them.Thanks for the feed-backKen

          Comment



          • #6
            Re: Electric fuel pump??

            What year is your Merc? I have never had trouble finding a rebuild kit. Could it be a greedy dealer?????

            Comment



            • #7
              Re: Electric fuel pump??

              Congrats Firewood!

              Comment



              • #8
                Re: Electric fuel pump??

                Its a 1986 MCM190, 4cyl, 224 cui. If you could locate a rebuild kit for me that'd be great. Like I said the old seems to be working but I'd feel better if I rebuilt it.Thanks again

                Comment



                • #9
                  Re: Electric fuel pump??

                  You might try a local auto parts store. NAPA is usually pretty good about outboard parts. Auto stores often carry Sierra (aftermarket) or some other company of the same business.If you dont find a diaghram or kit. Let me know I can get ya one.Boat

                  Comment



                  • #10
                    Re: Electric fuel pump??

                    Thanks for the offer. I copied the number off the box before I returned the new pump. My auto parts guy should be able to set me up then. But if not, I'll take you up on your offer. I really appreciate it.ThanksKen

                    Comment



                    • #11
                      Re: Electric fuel pump??

                      Boatman30, Looks like I'm gonna have to take you up on your offer. I went down to my auto parts store and He said he's not showing a rebuild kit for my pump.The pump I had bought and returned was a Fedral-Mougal Carter. Model# M60337.Mercuiser 1986 4cyl. 224 cui. Thanks again.Let me know how you'd like me to pay for it.

                      Comment



                      • #12
                        Re: Electric fuel pump??

                        Boatman might be assuming you had an outboard, not an I/O. I doubt you'll find a rebuild kit for your pump. A new mechanical marine fuel pump is your best bet.

                        Comment



                        • #13
                          Re: Electric fuel pump??

                          Ahhh, Now it all makes sense.That sounds more like it, I've rebuilt O/B fuel pumps numerous times, but never an I/O or and automobile pump for that matter. I think I can manage to save up 80 bucks by next spring.LOL I'd like to say thanks to everyone and Boatman30, It was an honest effort.

                          Comment

                          Working...
                          X