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  1. J

    Symtom of Gimbal bearing failure on 5.7 Merc Bravo II

    I think this forum is great and have learned alot of information from it. I also learned not to ask too many questions in one post as only one or two get answered(understandable). In a previous post I mentioned my drive resevoir requires topping off after about 5 hrs of operation. Now I hear...
  2. J

    Bravo II on 5.7 using some drive oil and now making noise in nuetral and forward

    Hi My drive oil resevoir requires about a half pint of gear oil for every hour or two of operation. I don't see any leaks in the water nor in the bilge. Someone told me that Bravo's use oil so i don't know if it's normal, however, I think it shouldn't require topping off every other time I take...
  3. J

    barnacles-Should I remove boat for winter?

    I have a 31 ft dual prop inboard. It wasnt used since June, but when I took it for a ride yesterday, top speed was 8 knots(instead of usual 25). The props and drive are loaded with barnacles. It has to be pulled out and cleaned of course. The problem is the marina where its at doesnt have a...
  4. J

    Probable cause of water in cylinders on mercruseser 260 V8

    Hi Guys, I have 94 searay 260 Mercruiser GM engine and I/O drive. I'm trying to find out the most probable cause for at least 3 cylinders getting water inside. Heres the history- The engine has about 300 hrs. It ran fine on a 45 minute trip. I then stopped and anchored. When I tried to start it...
  5. J

    Mercruiser 5.7 with Bravo 2 jammed

    I asked this question on the end of a long post and didn't get a complete response, so I'll try again here. The boat ran fine for an hour to a destination, temp, etc okay. Then when I went to start it, the engine turns slightly then jams to a stop and will not budge. The motor oil looks clean...
  6. J

    Bravo II drive locking up engine!

    I have a 1994 25' Searay Express witha 5.7L Mercruiser with Bravo II drive. Everything worked fine until this weekend when I took it out drove about 10 miles shut the engine off. When I tried to start it, it would crank about 1/4 turn or less and jam up with a loud clang. It's not a weak battery...
  7. J

    raw water pump merc 5.7L belt size information

    I bought a 94 Searay Express with a 5.7L last August. It started overheating this week because the impeller was bad. While replacing the impeller, I noticed the bracket that supports the pump from the opposite side of the engine was not connected to the engine frame, but just hanging there. The...
  8. J

    98 searay underwater for 8 hrs

    Hello- My friend sold his 98 Searay with a 4 cyl mercruiser I/O with low hours to his neighbor. They put it in the water and the next morning the entire rear end of the boat was under water(fresh water). He was considerate enough to give the guy his money back. Now he's trying to get it...
  9. J

    Blocking plate on a raw water system?

    I have big problems with my 1980 SeaRay with 260 GM Mercruiser. It has the log style manifolds with the rear risers. Here's the story. I replaced the manifolds about 4-5 years ago but not the risers. My guess is the risers are 7-8 yrs old. The operating temperature started creaping up over the...
  10. J

    replacing risers in water

    I have a V8 mercruiser old log style. It's been slowly rising in temperature to a point where it now runs at close to the red line level. I replaced the manifolds about 4 years ago but not the risers. It looks like the risers are above the water line. Can I change the risers and gaskets without...
  11. J

    Fuel problem causing stalling after 30 min

    I have a 1980 sea ray I/O with a GM V8 model 260 I believe. The boat runs fine for about a half hour, then it dies. It restarts and acts like it's starving for fuel. If i can get it to idle, it dies as soon as I try to put it in gear. I had a similar problem once before and it was a clogged...
  12. J

    trim not going all the way down

    I have a 1980 Mercruiser 260 "one " style I guess you call it. The cylinders go up and down fine and hold position as they should. The problem I have is that they don't go all the way in, so I can't trim the boat correctly at high speed. I can see about 1/2 to 1" of shaft left when it's...
  13. J

    what to do with Teak wood

    I have a 1980 Sea Ray Cuddy with a Teak platform and a Teak rail around the stern. It's currently varnished, but needs to be removed and redone. I know purists say to just oil it, but I know I did that on my bow grab rails and it looked great for a few months, but if you don't do it reguraly it...
  14. J

    fiberglass/restoration paint?

    I have a 1980 Searay . The white fiberglass above the rub rail and the fiberglass in the floor etc in the rear of the boat has turned yellowish from age. i tried all sorts of cleaners to restore the white with no success. Can it be painted with an epovy paint or other that would look good. Thanks
  15. J

    trim not going all the way down in water

    I have a 1980 Mercruiser 260 alpha I drive. The last time I had it in the water last year the trim would not go all the way down. It was fine at low speed, but when I tried to bring it on plane, the bow would raise up too high. In my driveway, it goes up and down past vertical to what looks to...
  16. J

    Tach jumps around

    My friend has a 1985 Tiara with twin 5.7L V8's with thunderbolt ignition. One tach bounces around +- 500-1000 RPM's. I thought we would try switching the Tachs but cant get at the wiring easily to do it. Is this usually the guage or the signal from the ignition? Thanks
  17. J

    1980 V8 Merc 260 runs but stalls at idle

    I just replaced my lower unit last year and put the boat in the water this week. It ran fine and the shifting seemed to be okay- fwd and rev.and idling okay I took it for a 20 minute ride in the open water and it ran great. When I came into my dock to park it, it stalled when I brought it...
  18. J

    Merc 260 V8 Surging

    My engine runs fine until hot, then I can't run above about 2000 RPM's under load. When I do it, it surges(cycles) from 2000 to 2800 or so. Is it most likely a fuel delivery problem or electrical?<br />1984 GM 350- Tuned up about two years ago.<br />Thanks
  19. J

    Surging over 2200 RPM's 1984 Mercruiser 260

    I have a GM 350 V8 that surges under load when hot above 2200 RPM's. I have to then run at about 2000 RPM's. In nuetral it is okay. It occasionally backfires also while surging. I expect this is a fuel problem or an ignition problem. I guess I can change the fuel filter, points, condenser, coil...
  20. J

    The Sterndrive I/O- A repair shops dream!

    I'm relatively new to boating, about 4 yrs. I did quite a bit of repair on car engines and other machinery. Now I'm in the process of rebuilding or replacing my frozen Mercruiser Alpha drive. I'm amazed at the design! <br />Anyhow my question is why isnt the shifting(forward,nuetral reverse) in...
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