Search results

  1. C

    Need lower unit 2004 mercury 115 OB

    So the gearcase was stuck to the midsection? That makes some sense. You are lucky you were able to get it off at all. Don't forget to grease the driveshaft and shift shaft splines, when you install the new gearcase.
  2. C

    Need lower unit 2004 mercury 115 OB

    Gee, that is a new one. Shattered when replacing water pump! Not going to look into the new SEI gearcases?
  3. C

    Confusion

    I am not sure how cedar will work with poly resin. It may be oily. If you seal the fir up well (which is paramount), any regular wood will do. You do not need the properties of cedar. This is an '85 boat, so I would use any fir I can find. for the stringers and frames. The decking will be...
  4. C

    Did I Spin My Prop Hub?

    It would be an incredible coincidence, if the marks matched, and the hub was spun. If they do match, then something else is wrong. Do you have a spare, good prop?
  5. C

    Removing oil paint from fibreglass

    There are paint strippers for fiberglass. They tend to be weak enough not to harm the Fg, but just strong enough to soften the paint. I have never had a lot of luck with them. If the paint is sound, simply sand it smooth and repaint with a good polyurethane marine paint. A 1 part paint...
  6. C

    Best fuel stabilizer for older 2 strokes

    That is a good question. However, most of the country has been using E10 for a couple of decades, some in real old engines. I have not heard of a big scandal on engine failure/damage so far, using the E10, only old wives tales. The oldest motor I ran E10 in was my '77 Merc 1500. They are...
  7. C

    Exhaust manifolds, time to replace?

    Heater hose is pretty cheap. I would replace them.
  8. C

    Exhaust manifolds, time to replace?

    Tank, Cast iron blocks are pretty good at resisting salt water. Most people do not flush 'em, and they last 20+ years. Actually, I have never heard of a block rotting out, but I am sure they do after a real long time. I would think the cast iron thermostat housings would rot out, and the...
  9. C

    Mercury 20 hp 1977?

    If you get on a parts site, you may be able to tell the original length of the pull cord. 20" seems short. Maybe it broke and the PO retied the pull handle?
  10. C

    Best fuel stabilizer for older 2 strokes

    Gee, It is true that the alcohol in E10 absorbs water and allows that fuel to be burned. That is a good thing, as regular non alcohol gasoline does not absorb water and it separates immediately. Remember your father or grandfather dumping DryGas into the car so it would run. DryGas is simply...
  11. C

    Need lower unit 2004 mercury 115 OB

    You might check the SEI gearcases. They may be cheap enough to just replace it entirely.
  12. C

    Need lower unit 2004 mercury 115 OB

    Swapping the gears over to a new housing is non-trivial. What is wrong with your gearcase housing? Weld it perhaps?
  13. C

    Exhaust manifolds, time to replace?

    The terminal end of the riser usually corrodes first. Yours looks pretty good. It looks like some leakage from the riser to manifold joints. That can be fixable, see post 4.
  14. C

    Exhaust manifolds, time to replace?

    Gee, 4.5 years is not usually a replacement point for manifolds and risers. It is usually about double that for those of us who do not flush 'em. Get some of those silver OEM gaskets, and true up the manifold and riser sealing surfaces with sandpaper on a piece of plate glass, to give a very...
  15. C

    Mercury 20 hp 1977?

    Remove the spark plugs, and turn the flywheel by hand. You should feel some compression in the crankcase, as she rotates. She should feel smooth, and except for the compression in the crankcase, she should turn over easily. If not, drop the gearcase and repeat the test. Gearcases can bind up.
  16. C

    2000 Sea Ray 190 CC Hull Soft Spot

    I do not agree with tank. His definition of cored is different than mine. A cored hull has a core, like balsa, between two layers of fiberglass skin. I would be surprised if the area in question is built that way. Coring is usually reserved for decks, although the entire hull of my old...
  17. C

    2000 Sea Ray 190 CC Hull Soft Spot

    I think you need to fix it from the inside. That means cutting out the deck and digging out any foam, until you find out why the spot is soft. If it has carpet, the deck fix will easily be hidden.
  18. C

    Ignition Compatibility on 150hp Blackmax

    The way I understand it, Merc made 2.0L blocks for the 135HP, 150HP, 200HP in the 80's. The 150HP and 200HP blocks became 2.4/2.5L blocks, and the 135HPV6 stayed with the 2.0L block. Just a bit of history. The 135HPV6 is a very good motor, IMO. I had a '77 1500 IL6, which was a beast at...
  19. C

    Four Winns hull strength

    Gee, you guys live on calm lakes. Legally boats are responsible for their wakes, but the acts of God are not. So, if a boat trashes your boat with their wake at the dock, you might be able to sue. Rough weather is not insured. I will expect that you will sometime have a freak wind/water...
  20. C

    Best fuel stabilizer for older 2 strokes

    The first time you use the E10, it may well loosen and old dirt in the fuel system. You may need to change filters, or the carb may clog. After that, when the fuel system is cleaned by the e10, you shouldn't have any trouble with the E10 fuel. On a small motor like that, that you are not...
Top