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  1. Grant Brown

    How long can I safely trickle charge?

    1989 Merc 70hp on 16ft Glastron. I have some sort of slow drain on my battery that I wasn't able to get time to fix last season. If I leave the boat wi the battery hooked up for a week or so the battery goes flat and won't start the boat. If I'm using it daily it stays charges and no problem...
  2. Grant Brown

    Reseal L/U - How hard is it?

    1989 Merc 70 3 cyl. My L/U is leaking oil and getting water in the case. I had it pressure tested on the bench and the shift shaft seal started leaking oil right away and I could hear air leaking out near the prop shaft. I bought the full seal kit from the dealer for $130 CDN and I was planning...
  3. Grant Brown

    4.5 Pull start rope won't recoil

    I tried to start my 4.5 kicker today and the pull start rope broke. I tired it back together but now it won't recoil - just hangs out the front. When I take the cover off it winds back in by hand. Any ideas? Grant
  4. Grant Brown

    Battery Draining

    Thanks for reading this post. I have a good running 1987 Merc 70 on a 1972 Glastron 16ft. When I leave the boat for a week or two, the battery drains down so low that it won't even run the tilt. The alternator seems to be charging the battery as it has lots of power all day when using the boat...
  5. Grant Brown

    Tach acting up

    87 70hp 3cyl Mercury - My tachometer jumps around all over the place and rarely shows a reading that's even near to what the engine is doing. When the engine/ignition is off, it stays at about 1100 rpm. It's done this ever since I've owned the boat (3 years) and now I'm finally getting a chance...
  6. Grant Brown

    89 70hp No power

    I had my boat our for the second time this season yesterday. Started right up and idled out fine but when I opened her up she was very sluggish, only reaching 23 mph top speed (I can usually get 33-34). After dropping the crab traps and relaxing for an hour or so I started it up and it ran...
  7. Grant Brown

    Gearcase leak

    I just winterized my 87 70hp 3cyl, the gearcase oil was cloudy showing signs of water (no actual water droplets). The boat is run in mostly salt water. I refilled it with fresh oil. <br />Money is tight right now due to house reno's, kids etc. so I was wondering if it's ok to leave it for the...
  8. Grant Brown

    4.5 hp slows and then dies

    1984 4.5 hp Merc.<br />I picked up some sea weed in the cooling system of my 70 hp a couple of weeks ago and decided to run home on the kicker. <br />It was a little hard to start and wouldn't run at all on the troll setting. When I got it to run without the troll lever on, it would run fine at...
  9. Grant Brown

    Clogged water pump? 2 questions

    1987 70 Merc 3 Cyl.<br />I had my boat out today doing some crabbing and I ran through some eel grass (sea weed). I picked up a bunch on the prop and leg, cleaned it off and then continued the run back home. A couple of minutes later I noticed hardly any water was coming out of the tell tale. I...
  10. Grant Brown

    Stuck in Fwd

    1987-70hp 3 cyl.<br />I pulled the lower unit last week to replace the waterpump etc.<br />I put it all together and when I fired it up on the muffs today it was stuck in forward with the prop turning clockwise with no change at all in any shifter position.<br />The info I have says to put it...
  11. Grant Brown

    Water in gearcase, 1987 - 70 hp

    When I drained the case on my '87 70 Hp, the synthetic was all cloudy and about a teaspoon of water came out at the end. I winterized everything else but it was cold so I got lazy and didn't change the oil. <br />While reading some other posts I noticed some references to fibre washers/gaskets...
  12. Grant Brown

    L.U. parts/Impeller Pictures

    1987 3 cyl 70 hp.<br />I Fired it up first time this year yesterday, and it ran pretty good - just lots of smoke and sludge at the prop (from reading other posts this seems normal).<br />I replaced the w/p impeller last year but wanted to put new gaskets in it this year cause I had to make my...
  13. Grant Brown

    WOT RPM? Top speed? tach broke?

    I have a 1987 70hp 3 cyl. Mounted on a 1972 Glastron 16 ft. I'm pretty sure it's got the stock factory prop. <br />What should the WOT be? <br />How fast should this combo go? I've clocked it at up to 36mph on a flat calm lake with my GPS. <br />The other question is why would the tach always...
  14. Grant Brown

    Stator/Rectifier - HELP!

    70hp Merc 3 Cyl serial # 0A739874 - 1987<br /><br />How hard is it to replace/upgrade the stator and rectifier on this motor? It died last week (no spark) and the tech guy says he has about 1.5 hours into testing it and pulling the flywheel. He says it needs to be upgraded to a newer part...
  15. Grant Brown

    Intermittent alarm

    70 Merc 3 Cyl serial # 0A739874<br /><br />The alarm seems to be malfunctioning on my boat. It beeps on and off a couple of times, or maybe stays on for a minute or so. The oil in the resevoir is being used and the water coming out of the block is cool. The engine and leg are also cool even...
  16. Grant Brown

    Bogs down for 1/2 hour

    70 Merc 3 Cyl serial # 0A739874<br />The last couple of times I've used my boat, it starts up fine and runs a bit rough at first. After I idle out and try to open it up, it won't rev out. This boat usually just takes right off and is up on plane in seconds. Now it takes minutes. Max speed is...
  17. Grant Brown

    4.5 hp Merc - what year?

    Mercury 4.5 hp long shaft, serial number 7216798. I have a dealer purchase invoice from the last owner dated 1988 but it doesn't say if it was new or used.<br /><br />
  18. Grant Brown

    leg oil smelled burnt

    I have a mid 80's long shaft 4.5 hp kicker. I just got it and replaced the leg oil. When I drained it the oil had a burnt smell and had a big swirl of wellowish color. The motor has been sitting for 5 or 6 years and I also noticed that the plugs don't seal properly because the leg is dripping...
  19. Grant Brown

    No Power/Just idles

    70 Merc 3 Cyl serial # 0A739874<br /><br />I finally got my boat in the water today for the first time ever and had some troubles. <br /><br />I did a totally dumbass move and ran it onto some sand. The area is known as mud bay and at low tide there's lots of almost exposed mud.<br />Anyway I...
  20. Grant Brown

    70 Merc - Alarm/Corosion

    I re-did the waterpump in my 70 Merc 3 Cyl serial # 0A739874, the other night and had a look under the 2 plastic covers on either side of the leg just above the lower unit. The bolts under there are very rusted and I noticed a broken bare wire with 2 lugs on it that looks like it was supposed to...
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