• 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

4 cyl merc firing order

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


  • 4 cyl merc firing order

    ok can any one tell me which cyl in an 84 four cyl 50hp is the #1 and do the wheel marks line up with tdc on it
    i've not been able to start the thing and ive tried every thing but i may have the wheel on wrong as i made the mistake of removing it to clean it, eight bolts and all.


  • #2
    Re: 4 cyl merc firing order

    Kelp, The top cylinder is number 0ne. It sounds like you could use a service manual.

    Comment



    • #3
      Re: 4 cyl merc firing order

      ya i could use a manual.... the marks are lined up with the tdc on the first cylinder. it ran last year but only on the two bottom holes and after replacing the black box, yes i made sure the wires where in the same spots, it gets lots of spark on all cylinders and fuel but will not fire. i'm at a loss.

      Comment



      • #4
        Re: 4 cyl merc firing order

        1-3-2-4
        "Many of the greatest sailors were pukers."--Thorfinn Skullsplitter

        Comment



        • #5
          Re: 4 cyl merc firing order

          Hey kelp I'm confused. When you say that you removed the wheel do you mean the flywheel? If so, it should only go back on one way due to a key on the shaft. If you have plenty of spark and your plugs are wet with fuel then you really need to start checking your timing. It sounds like you are 180 degrees out somehow. If the timing was off but still close you would get some kind of pop or backfire from the motor.
          Goin' fishin'?
          Yep.
          Got worms?
          Yeah, but I'm goin' anyway.

          Comment



          • #6
            Re: 4 cyl merc firing order

            thanks guys. sig-mech, the flywheel on these engines come away from the (keyed hub) with eight bolts but as far as I can tell, the timing is not critical for this piece as the magnets are evenly spaced all around the thing. I've lined up the timing marks and all was well. again thanks!

            Comment

            Working...
            X