alpha 1 outdrive noise PLEASE HELP

[jpotter93]

i am having the spring problems already. i just started up my boat and i am having a knocking noise coming from my alpha 1 outdrive when it is out of gear and idling over 2500 rpms. what would be causing this knock or knocking sound when the boat is out of gear. please help. <br />jonathan

 

[DHPMARINE]

Re: alpha 1 outdrive noise PLEASE HELP

jonathan,That seems like a rather high idle speed.What do you hear in the water,in gear at that RPM.<br />DHP

 

[jpotter93]

Re: alpha 1 outdrive noise PLEASE HELP

thanks for the quick reply. that is not my idle speed. sorry for the confusion. i hear this noise when i rev the engine up a little bit (round 2000-3000rpms). i have not had the boat in the water yet because i just brought it out for the spring. i am skeptical to bring it out with this noise. i'm not sure if i would hear it in the water but i would guess that i would. i just heard it when i had it running at my house with the hose hooked up to the outdrive. please help further.<br />jonathan

 

[rattana]

Re: alpha 1 outdrive noise PLEASE HELP

Have you changed the outdrive oil yet? Look at the oil to see if there is any contamination in the oil. The drain plug is magnetic and will show if any filings are there. I have heard that a small amount of filings are sometimes seen, but I am sure others have more experience at this then I have.

 

[rodbolt]

Re: alpha 1 outdrive noise PLEASE HELP

wow<br /> that is way to much rpm with no load. things will bang and knock all over. if it ran ok when you stored it and the outdrive is still full of oil it is probably ok. but 2500 on the flusher is bad mojo with no load.<br /> good luck and keep posting

 

[Bondo]

Re: alpha 1 outdrive noise PLEASE HELP

Did You Trim the Drive Down ????????<br /><br />If by chance you Didn't,<br />You've Probably Trashed your U-joints,<br />By Rodding the $hit out of that Poor Boat........<br /><br />1500rpms is More Than Plenty.......

 

[jpotter93]

Re: alpha 1 outdrive noise PLEASE HELP

thanks for all of the replys. when i posted the first times, i was guessing about what rpm that i heard the sound but since then, i changed the fluid (little low) and i was only reving to about 1700 rpm. anyhow, the noise is gone...at least i think it is gone...and there were a few small shavings. i think most of those where probably from when i rebuilt the outdrive last summer. thanks again guys.<br />jonathan

 

[moose3776]

Re: alpha 1 outdrive noise PLEASE HELP

hi guys, newbie here. the problem described here is much like the one im having. i just recently bought this boat and have been going over it. the boat was started a few times and ran but i always had the outdrive flush connection on it. but after reading some posts here im wondering if i may have screwed my u joints because im pretty sure the outdrive was up most of the time it was ran. things ive done to it include changing plugs engine oil outdrive oil and installed a new carb kit. the noise i was hearing was much like the one here (clanging metal on metal type noise) around the drive shaft, then i had it on the water i heard the noise then a few seconds later it was like the outdrive got bound up in some way and cocked the steering wheel and quit. now when i try to start the engine it tries to turn over but the whole outdrive wants to turn, its bound up in some way but im not sure what could cause this? the boat is a 88 starline with a mercruiser inboard 3.0 alpha one. another note the prop will still turn freely by hand. any advice would be greatly appreciated.

 

[Bondo]

Re: alpha 1 outdrive noise PLEASE HELP

moose3776,<br />You'd better Pull your Drive Off......<br />Sure Sounds like you have some Serious Problems......<br />Six 5/8ths nuts on the drive,+ the 2 9/16ths nuts on the trim rams,+ You'll have your Answer.........<br />Good Luck......

 

[rattana]

Re: alpha 1 outdrive noise PLEASE HELP

Make sure you put the drive into forward when you pull it.