Search results

  1. Gomer50

    1972 Merc. 80 HP fuel starvation??

    Okay folks I am at the end of the line again,Carbs cleaned,new fuel pump.new fuel hoses,new fuel filter,new fuel tank.Starts fine,Idles okay,good hole shot,but running at WOT for about a minute or 2 it starts to starve for fuel.2 or 3 pumps at the bulb and she will pick back for awhile and then...
  2. Gomer50

    1972 mercury 800 water pump question

    I am a little concerned about a new water pump.I ordered a new complete water pump from iboats and installed it.But before i put the lower unit back on I would like to know is it hard to turn the drive shaft after the new pump is installed.Mine sure is.I didnt wrench it down real hard,it just...
  3. Gomer50

    1972 mercury 800 with early 80's lower unit

    I need a little advise concerning a new water pump I have a 72 80 hp merc with a early 80's 115hp lower unit and I need to purchase a new water pump/complete kit I found 2 but not for sure if these are right.The lower unit is with the tapered bearing style and has the speedometer hose on it.I...
  4. Gomer50

    1972 Mercury 800 Compression??

    Okay,I spent all morning doing the seafoam thing.First compression test (cold) without seafoam soak cylinder 1 125 Psi 2 135 3 135 4 135 after seafoam soak the same.After letting her warm up on Muffs cylinder 1 dropped to 115 Psi rest stayed the same.I am thinking about tearing her apart and...
  5. Gomer50

    1977 mercury 115HP Max Rpm

    I have a friend call me today and ask me about his boat,so I would like to pass this on to you guy's for your opinion..He has a 1977 Merc.115 HP on a 14 1/2 foot Hydro boat weighing about 420 LBS.Also he is running a 13 1/4 by 21 Pitch Prop and he say's his Motor is screaming at 6000 RPM WOT and...
  6. Gomer50

    1971 mercury 800 Distributor needed

    Hello all, I am looking for a used distributor for a 1971 mercury 800 in line 4 that will work for the 332-2986 switchbox? Mine has took a **##..
  7. Gomer50

    1972 mercury 800 timing ??/

    My Motor seems to run pretty good but I am a little concerned with the timing,I have read the link and synch procedure and have read the manual several times and still not sure. Number 1 the only thing on my flywheel as far as markings are 3 dots and if I am doing this right, I used a dial...
  8. Gomer50

    mercury 1971 8oo coil????

    What is the stock ignition coil Number for a 1971 mercury outboard 800 serial number 3198228 with the 332-2986 switchbox/distributor? I cant seem to find it anywhere are these special or does it make a difference from after market coil like this one...
  9. Gomer50

    Whats the difference between 332-2986 switchbox 4 and 6 cylinder

    I am curious what the difference is between a 4 cylinder and a 6 cylinder switchbox 332-2986?
  10. Gomer50

    1971 Mercury 800 Switchbox

    I am searching high and low for a good used switch box for my motor any Idea's.Been shopping around on e-bay etc. not having much luck.Any good Idea's???:confused:
  11. Gomer50

    Question on Distributor swap merc outboard

    Can some of you fine people here tell me if a distributor off of a Merc. Model 650, sr# 3000662 is interchangeable with my 1971 Merc. Model sr# 3192883,both are 4 cylinders and it looks Identical. Thanks Guy's...
  12. Gomer50

    Fuel line/filter Bulb question??

    I have rebuilt the carbs,rebuilt the fuel pump all looks good and runs,but it still seems to be not getting enough fuel.I have replace the bulb and fuel filter.So here's the question when I pump up the bulb I can see the fuel come through the filter but it never fills up only maybe a quater,when...
  13. Gomer50

    1972 Mercury Thunderbolt 800 whats next??

    Okay need just alittle more advice,after rebuilding carbs,fuel pump.replaced bulb,fuel lines.Starts pretty good, Idles pretty good.Hole shot is great but now comes the kicker.At 4200 rpm it runs decent,at WOT throttle it spits and sputters, gerking and wants to go just cant do it.I had put new...
  14. Gomer50

    Service/Repair Manual 1972 Mercury 800

    I would like to ask you fellows which repair/tune up service manual you would recommend.I see a couple different ones,I would like to purchase one that gives me good detail,description,and I hate to say this I like pictures as well.I am Mech. inclined but I have seen some manuals that are...
  15. Gomer50

    1972 Mercury 800 No Reverse

    Thanks to this site I have gotten alot of advise.And I am having another issue that could use some suggestions.I took the boat out to the lake to test it out (other Issues) and noticed when I put the engine in reverse the boat does not move,also no grinding when I put it in reverse.Got it back...
  16. Gomer50

    1972 Mercury 800 beginning to be a pain

    I have a 1972 Mecury 800 thunderbolt serial Nr.3192883.Well where do I start,It ran half way decent when I bought it seems that at one time its been rebuilt no info from previous owner.So I put new plugs in it,new plug wires new carb floats old ones were shot,new rectifier,new rebuilt fuel...
  17. Gomer50

    1972 Mercury 800 Thunderbolt Fuel Prob.

    I am having alittle problem.My motor quit running today,checked spark(good),new spark plugs.Checked gas (good) but here's where I am not sure,I took off gas line from fuel pump to carbs and pumped the bulb and gas comes out of fuel pump.If I crank the motor over no fuel comes from the fuel pump...
  18. Gomer50

    1972 Mercury 800 thunderbolt fuel prob.

    I am having alittle problem.My motor quit running today,checked spark(good),new spark plugs.Checked gas (good) but here's where I am not sure,I took off gas line from fuel pump to carbs and pumped the bulb and gas comes out of fuel pump.If I crank the motor over no fuel comes from the fuel pump...
View older results
Top