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  1. Rock Hall

    Mercruiser 5.7 Alpha One Overheat about 2600PRM

    About a year ago I developed a problem with my 89 Mercruiser. Almost every time I run over 2500 RPM or so, the heat alarm goes off. My temp gauge does go up a little when this happens. So far in an effort to solve the problem I have replaced the Seawater Pump, Circulator Pump, Thermostat, both...
  2. Rock Hall

    Need Help With Temp Alarm Issue

    I have a 1989 Mercruiser 5.7 driving an Alpha One/Gen one. The past few weeks, when I accelerate and approach 3000 Rpm, SOMETIMES the alarm sounds. as soon as I back off the alarm stops. I am running a 140 deg thermostat. under normal slow running, the temp gauge reads about 145 deg. when i...
  3. Rock Hall

    Mercruiser shift lever-cant keep tight

    I've got an 89 Mercruiser Alpha 1. i have an ongoing problem keeping the shifter level tight. there is a set screw underneath the lever. i dont think i can get that any tight. if i loosen it then tighten...it seems to me ok for a few hours of operation then gets sloppy to the point that you can...
  4. Rock Hall

    Trim Cylinder Replacement

    I just replaced my port side trim cylinder on an Alpha One Gen One. Do I need to bleed the system? How is that done? Thanks!
  5. Rock Hall

    Need Help With Alpha1 Control Box

    I've got an older Alpha 1 Gen 1 drive. I'm having a problem with the shift lever coming completely off the control. it seems this just has a friction fit on a flange in the box. is this correct? if you push on it when you move it, it's fine. or if I remember to keep making sure it's pushed on...
  6. Rock Hall

    Need Help Identifying Alpha I Trim Cylinder

    I have a 1989 Mercruiser Alpha I Gen I Stern Drive. I need to replace the port side trim cylinder. It seems that there are 2 different length tubes. I did a measurement (under water) over the weekend. I came up with 16 1/4 to 16 1/2 inches. The sales guy says that most 89s are the shorter...
  7. Rock Hall

    Question on Mercruiser Trim Cylinders

    I've got a 1989 Alpha One Gen I outdrive. I found out yesterday, when I splashed the boat, I've got a hole in my port side tube. The boat is at the marina 100 miles away. I've contacted a few vendors and they tell me I must measure the cylinder to determine the correct model. At the same time, I...
  8. Rock Hall

    Mercury 3.5hp 4-stroke New, Wont Idle. Help!!

    I may have posted this request for info before, but I still havent got it figured out. I have a new Mercury 3.5HP 4-stroke outboard. The first 15-20 hrs it ran perfectly. This motor only has the internal 1/3 of a gal tank, so I carry a gallon can and fill it when it runs out. I was out crabbing...
  9. Rock Hall

    Sloppy control lever

    I have an 89 Merc 260 with an Alpha One. The control lever is really sloppy. Seems like it's loose as in from side to side. Before I tear this apart, it there a way to tight it up, or do they wear to this point?
  10. Rock Hall

    New Merc 3.5hp 4-stroke Wont Idle

    Before I take this motor back to the dealer (because I probably wont see it again till Winter) I thought I'd run this by you guys. I recently bought a new 08 Mercury 4-stroke 3.5hp outboard for my fishing boat. The first 2 times out with it, it ran flawlessly. I had it out last weekend, ran...
  11. Rock Hall

    Alpha One Vent Screw. Cant break loose!

    I'm having a heck of a time trying to remove the upper vent screw. I had a little elecrolysis issue last year and I guess it got to this screw. I've tried all the normal stuff. PB Blaster, Freeze Off, Bigger screw driver, Anything else I can try? I'm afraid to take a drill to it for fear of...
  12. Rock Hall

    Flo Torq Hub kit questions

    I bought my first new prop.Mercury Black Max came with Flo Torq II hub kit. I'm a little confused on the nylon sleeve. I cant tell from the drawing which end goes in first. The second thing is it will not go in easy either way. Is it normal to have to use a rubber mallet to drive into the prop...
  13. Rock Hall

    '96 Johnson 9.9 Coil question

    A friend of mine just bought 9.9 Johnson. We think it's a '96. No Spark either cylinder. He's not sure if he wants to start throwing non-returnable expensive ignition parts at it to fix it. Are there any common issues with this motor? I was reading some of the older posts and I saw mention of...
  14. Rock Hall

    Voltage Reg / 260 Mercruiser

    I have a 1989 350ci 260hp mercruiser. My alternator has been getting a little funky on me the past month or so. Every now and then it would start cranking out about 15.5v. Then it would return to normal. Always just right or too high. Well, was heading out this weekend and it started dropping...
  15. Rock Hall

    How to charge 2 batteries

    My guest shore charger died this year. It was designed to charge 2 different banks of batteries. I also have a Perko 2 battery switch. 2 new Deep Cycle batteries. I have a new charger, the automotive type, that is automatic 12/8/2 amps. I would like to mount this in place of the Guest charger...
  16. Rock Hall

    Baffled by Mariner 25hp

    I have a mid 80s Mariner 25 hp motor. I've been trying to get this motor right for almost 2 years. When cold, starts fairly easy. 2nd or 3rd pull. After warm up, runs great. Has always been a little rough at low RPMs, but really runs good otherwise. After about 15 min of running, will just shut...
  17. Rock Hall

    Need Info on Annapolis Area Marinas

    We are think about attending an event at Sandy Point State Park. We are docked in Rock Hall on the Eastern Shore and would love to travel by boat. there is a 600' restriction at the beach, so I dont think I want to drop anchor there. Can anyone tell me a few marinas that are within walking...
  18. Rock Hall

    Trim goes down but not up

    I'm having a problem that started last season and has been intermittent. I can trim the drive down, but not up, sometimes. 1989 Alpha One Gen 1. The last time I had this problem, the tech at the shop said he was able to clean the sensors up and they worked fine till the end of the year. My boat...
  19. Rock Hall

    Reinstalling Outdrive

    I removed my Mercruiser Alpha One Gen One Outdrive last fall to paint it. It is now painted and ready to go back on. I've never done this before. Are there any precautions, things to check, tricks..... I remember the shift cable has to be a certain way, but thats all I remember. The older I get...
  20. Rock Hall

    Home-made Outdrive Stand?

    Has anyone built a simple outdrive stand for an Alpha 1. I dont not have a welder. I would like to make something out of 2X4s. I need to refinish the outside of the housing over the Winter. If someone has something, a pic would be great just to give a visual to base it on. Thanks
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