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  1. K

    Antifreeze low after sitting 2 week

    I 'm thinking the riser gasket failed.... and is leaking into the exhaust . What is the proper way to replace it without letting antifreeze leak into the pistons.
  2. K

    Antifreeze low after sitting 2 week

    So I went to winterize my boat and I noticed as in the past the antifreeze was a little low and this has been a summertime issue after replacing the head gasket exhaust gasket the intake gasket and exhaust riser gasket . Every time I start up the boat you can clearly see the antifreeze shooting...
  3. K

    Possible oil leak near fuel pump bolt

    I have an 89 MerCruiser 3.7 that sat for a long time I’ve put quite a few posts up here to bring them back to life. So I decided to change the fuel pump thinking that diaphragm is got to be worn out why not. Well when I was installing the new one obviously. I had tighten the bolts and when I...
  4. K

    Cleaning products recommendation

    Can anyone recommend a good cleaner ( grease stains) I was looking into the vinyl spray paint for the ones I cannot remove.
  5. K

    Steering issue left turns only

    1989 regal medallion bow rider 3.7 merc cruser alpha 1 So yesterday while tubing all of a sudden I was not able to take sharp right turns..... I can take what I call a slow right turn.. I have looked for obstruction like a clamp or hose. I have looked for any obstruction inside and im not seeing...
  6. K

    Fuel sending unit help

    I have a 89 regal Medallion 3.7 2 bbl Can someone tell me what kind of fuel sending unit this is ... Looking to buy a replacement.
  7. K

    Alpha 1 exhaust bellows help

    Can someone tell me what kind of bellow I have? I noticed my exhaust is not exiting the prop area. Look at my bellows why is it so different ?
  8. K

    Loud knock in full throttle

    So today I noticed on two separate occasions when I go full throttle after about 20 seconds there’s this knocking sound now I’m not talking about an engine knock it sounds very metallic he somethings loose somethings slipping maybe how do I find the source of the problem. What do I start looking...
  9. K

    Electric fuel pump and oil pressure switch

    89 3.7 4cyl Merc 2bbl So because of vapor lock issues I've been having I'm planning on switching over to a small electric fuel pump and an oil pressure switch that turns the pump on and off from what I've been told this is necessary. My plan is to purchase one of those small electric...
  10. K

    Puffing sound from rear of engine

    In my previous post I had mentioned that I replaced the head gasket on my boat and I will guarantee that this has something to do with it and it may have had something to do with my boat not starting after running it for about 2 hours vapor lock. Now I really haven't had them desktop too needed...
  11. K

    Stuck Rochester two barrel linkage

    I’m hoping I can get some guidance from someone else there that’s been through this. I recently got a carburetor and I installed it and I noticed that when I tighten up all four nuts the return action sticks if I loosen just one of the nutd in the corner closest to the Linkage it snaps forward...
  12. K

    Crack and cavity on lower unit

    So when I purchased this boat I guess there was some water in the lower unit it froze and created a crack. I put some of that putty steal stuff hoping it would keep everything intact but last week it all came out. Now as a temp fix I’m going to try to put in some JB Weld and fill this hole so...
  13. K

    Flapper valve replacement wisdom needed /89 3,7 merc

    Looking for some guidance on a exhaust flapper valve replacement . I'm having a very very difficult time sliding this boot off the elbow that will give me access to the flapper. Now part of me wanted to cut it with a razor blade and just replace it with a new boot that I have but I'm thinking...
  14. K

    Dies when throttling up from idle after warm up/ 89 merc 3.7 2bbl

    So I'm trying to figure out why my boat run so well for the first 45 minutes of operation and then if I turn off the boat to anchor somewhere restarting it is almost impossible unless if I don't let it sit for more than 30 minutes. if I want to start up before that I have to use starter fluid...
  15. K

    Lifters got loose pushrods came off while boating

    Well my next question on my engine i have to 1st torque the bolts then go back and check the clearance aka valve lash?? There is no adjustment to do that? this is so confusing torque 1st than check the clearance and purchase push rods shorter or longer to correct the gap? WTF that is...
  16. K

    Lifters got loose pushrods came off while boating

    89 Merc 3.7 So after redoing my top end place in the head gasket I finally got the boat running nicely. After about an hour and a half I noticed a ticking noise a little sputtering and then the engine died. On a hunch when I got home after seeing it run really rough I said let me take the...
  17. K

    Engine wont turn over or budge. Stator debris

    Last year when I was winterizing the engine, I was hearing a clicking noise and I also saw fragments or pieces of plastic flying from the main pulley aka stator. I knew something was up but I kept on going with the winterizing saying I would deal with that later I shut the engine off and stored...
  18. K

    470 problems

    New problem right before winter rising go figure. cell last week I took it out for a first time run of a newly purchased boat 1989 regal 3.7 MerCruiser engine alpha one. When I got to the ramp we put in the water now previously I ran it in the driveway and it ran nice and clean started up...
  19. K

    Spare parts Merc cruiser 3.7 - Now Dying On The Lake

    I’m doing some troubleshooting and rather than buy new parts I’d rather replace it with something known good I have a temperature issue and it could be the switch heat to buy one if it’s not the real problem my old switch is definitely gone I’ve put an aftermarket one in but my gut feeling says...
  20. K

    I just bought a boat and saw this later.....

    Should I be concerend ? was this from poor winter storage? will it happen again if I replace the lower unit?
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