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  1. ab59

    1984 Merc 115 compression test results-

    I bought this motor to use as parts for another I was in the middle of buying but the guy just flaked so I'm trying to salvage this motor. Motor is complete the PO tore it down and used the crank out of another older 115 but the rest is the original parts with the exception of 3 new pistons .. I...
  2. ab59

    1984 ? Merc 115 with a JET--Running the jet in the driveway to test ?

    Howdy all , I just bought a 115 hp Merc with a jet on it . I bought it for the jet and was going to use the motor for parts as I was looking at another 115 as my runner.I would like to try and run the motor and then run a compression test . I have a flushing tool that screws into the water...
  3. ab59

    Old Mercury tower of power control question

    I'm looking at an old donor boat with a 1980 ish 115 hp motor. Supposed to have good compression but issues with the control box wiring. There is a control box for sale by a different guy in good shape but it's from a 40 hp Merc within a 6 year span of age of the 115 . Will the control from the...
  4. ab59

    New old Fiberglass boat needs painted or gel coated

    I was going to wait until I moved before taking on another project but I could not help myself when this old river runner came up for sale fairly cheap. A 1971 19 ft Kenner FisinSki Barge or Bluffer that looks every bit her age. I wanted another Starcraft Aluminum to make a river boat out of but...
  5. ab59

    Back again with non starting issue--5.7 OMC Cobra---1988

    I have been fighting a non starting Problem with my boat. I had thought that i figured it out but it showed it's ugly head again today. All plugs , plug wires , fuel lines and Holly 4010 Carburetor have been replaced with new or rebuilt. I put the boat in the lake this morning and fished for...
  6. ab59

    Howdy and looking for input on 2nd Battery set ups for my Starcraft with a 5.7 .

    Howdy all , been a while. I'm putting in an anchor winch since I don't fish with anyone who can still pull up an anchor any more . Lol. Right now I'm running a 65 lb thrust trolling motor off of a stand alone ser. #31 battery in the bow and a separate starter/ fishfinder series # 24 battery but...
  7. ab59

    Which Fish Finder to buy next ?

    I'm about ready to buy another fish finder and since poor boys have poor ways I'm looking at a Humminbird 7" or a Hook 2 7" screen that has side imaging . My question would be for those of you who actually have these types of finders and how you like their performance. Would be a great help to...
  8. ab59

    Thanksgiving

    Wishing all my fellow OMC Owners a Happy Thanksgiving Day !!!!
  9. ab59

    Turkey

    Happy Thanksgiving my fellow Starcraft Addicts !!!!!!
  10. ab59

    New day New Problem--1988 GM 5.7/Cobra oil at the plug wells---

    I noticed after my break in oil change that I seemed to be using or leaking oil. When I changed the cap rotor and wires I saw what was to me an alarming amount of fresh oil in the bilge. I cleaned the bilge and started the engine running on muffs in its stall . With a good light and engine...
  11. ab59

    5.7 gm/Cobra won't start after cap and rotor replacement

    I finally got around to installing new plug wires , cap and rotor on my 1988 GM 5.7 / Cobra with a Mallory / Unilite electronic ignition. Now the engine won't start. Does not really even try . I just went out and pulled the cap , checked for proper rotor placement and traced each plug wire from...
  12. ab59

    distributor cap question ---

    Another stupid question I'm sure but I can't seem to find the answer anywhere. I have a Mallory dist. part # 4748201-H on my 5.7 gm engine, 1988 vintage . I want to change out the cap and rotor . Is the cap and rotor the same for an electronic ign as it is for a standard points dist. ? |The cap...
  13. ab59

    1988 Omc Cobra 5.7 --where should my electronic choke be wired to ?

    I currently have my electric choke wired to the side of my coil . I have read somewhere that it is not correctly connected by doing this. I do not have an original alternator on the engine but seems like I was not supposed to go to the alternator either. Sooo where is the correct place to hook...
  14. ab59

    5.7 difficult to start on and off --- Any ideas ?

    Hey guys , was out fishing yesterday and have been working out a few bugs in the engine and have figured out a few but the engine not wanting to start every time has me a little stumped. It will fire right up one time and then sometimes I have to crank on it for quite a while before it will...
  15. ab59

    OMC oil change Problems---- wrong filter ?

    I finally ran the boat long enough to put a few hours on the new 5.7 engine so I wanted to change the oil and get the break in oil out . I bought a Cobra Marine Filter some time back that was advertised as being for a 5.7 engine . Well although it threaded on just fine it leaks like a sieve...
  16. ab59

    1988 5.7 OMC Cobra--ESA Influence

    Took my boat fishing yesterday with a couple of shirttail relations and began to have a few bugs show up in engine performance . After tooling out past the 5 mph buoy I opened up the throttle and had one pop and a miss now and then , when I backed off a little it ran smoothly . That was the only...
  17. ab59

    battery question

    I put a new 31 series battery in the boat a few months ago that I bought at Wally World and fully charged it now reads 11.27 volts. I used two different meters and both read the same. The engine starts fine , it seems to hold a charge and I have not really had any problems yet. Should I return...
  18. ab59

    Omc Cobra shift problems---- 5.7 1988

    Well , I set the idle at 600 rpm and then I reset the throttle . A little better but still does not want to come out of gear when in the water, on the muffs it shifts in and out of gear just fine . The following pictures are the positions of the detent in Neutral then WOT in Forward, then WOT in...
  19. ab59

    Omc Cobra shift problems---- 5.7 1988

    Just when I thought I was done with this project I find that I still have a shifting problem. I replaced the engine and transom shift cable and used the OMC jigs to set the cable up so I know it's right. I adjusted the control cable according to Wolfs directions . I can shift into gear 9 both...
  20. ab59

    my new old 1988 ss20v

    Took the side guides off and replaced what was rotten and rapped em in some new marine carpet. I think the plan will be to finish out the buffing ( I may try some color sanding at the bow to see if i can get rid of the rock chips ) and then roll under the trailer and take the staples out of...
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