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  1. M

    Water in cylinders merc 7.5 1972

    After soaking and whacking it with a hammer and using the air wrench I tried to free the bolts. This ended up in decapitating all bolts and leaving small studs behind in the casing. Most of the studs only had a few mm left. With a few mm I could not use a vicegrip so I decided to drill all...
  2. M

    Water in cylinders merc 7.5 1972

    I followed the advice on 60sboater. Though I have not done it with a merc, I pulled a powerhead many times on other motors so I thought i gave it a try. These bolts came off very easily. Since the baffle plate was the main suspect, I inspected that first. Through the exhaust I could see a crack...
  3. M

    Water in cylinders merc 7.5 1972

    I was not talking about the head gasket. I am a Dutchman so english isn't my best language. By powerhead gasket I mean the gasket between the powerhead and the midsection. I know that this cylinder head is cast in. The reason that I will not yet pull my exhaust manifold plate is that I will...
  4. M

    Water in cylinders merc 7.5 1972

    Hi everybody, ​I have a problem with my 1972? Mercury 7.5 hp thunderbolt. (stole a picture from the internet) I got this one for a few euro's. Previous owner told me that the motor ran well some years back and then graduately began to run worse and worse. I'd figured that a good clean up...
  5. M

    Archimedes penta 90 9hp ignition timing

    Can anyone help me with the ignition timing on my 9 hp Archimedes / volvo penta? Stole a pic from the internet: It has a fixed timing plate which can be altered a little bit in timing. I know that there is a small chance anyone knows the exact timing but wat is a normal value for the points...
  6. M

    mercury 7.5 hp lower unit broken shift rod

    I got a 80's 7.5 hp sail power mercury. I bought it for a couple of euro's ( I live in the Netherlands). Previous owner bought it with the boat and never used it but has been told that the gears where not working properly. I started the engine and it worked great, not pumping water but i didn't...
  7. M

    strange coil repair 3 hp lightwin

    I have an evinrude 3 hp lightwin in to repair for a friend of mine, He said that it had a problem with the ignition. Only one cilinder had spark. Since he had no clue of the history of the outboard i have pulled the flywheel to inspect the coils and point since these are likely to fail. As I...
  8. M

    flywheel swap between 18hp 1982 and 25hp 1992

    I have an old, ugly looking 18 hp. he is pretty old, I believe from 1982. He however works like a champ and is fitted with an electric starter. The other engine is an 25 hp mercury, about ten years younger. I want to pull the electric starter from the 18 hp and mount it on the 25 hp. The...
  9. M

    Johnson 1992 40 hp lower unit seals

    Since i stored my motor last fall it has been leaking through the propshaft seals. Both where shot so i already pulled them out and bought new ones. The two seals that came out where both facing inwards, the rubber part facing towards the gears. Is that the correct way to position them ore...
  10. M

    Fuel cap johnson td20

    Hi guys, My name is Micha, i'm from the netherlands. A country full of water so a lot of boating around here. I live in the haque near amsterdam and i have recently purchased an old johnson td20. Here they are rare, you do not see them very often. I got it to run after cleaning up the ignition...
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