problems on the high seas!

[jcgizmo69]

I have a 75 hp Mercury Mariner serial # A117373. I still haven?t gotten a manual because when I looked, there are various names associated with this 75 Mariner. How do I know what model this is?

Also, I got the motor running, finally! But when I engage it to move forward or backwards, it sounds like metal is grinding and then a big ?thunk?! This takes place for about 10-15 minutes of constant turning on and it dying when it tries to engage. I have messed with the idle to keep it reved up in order for it to stay on, but as soon as it starts to engage, it shuts off. It will stay on and idle very low after about 15 minutes and then the boat will move. Does anyone know what I can do to fix this problem.

 

[Laddies]

Re: problems on the high seas!

http://www.iboats.com/Mariner_1977_...5200715--**********.029864253--view_id.215023

There how hard was that

 

[jcgizmo69]

Re: problems on the high seas!

Thanks! Sorry about the delayed response? How about the second part of the problem, can someone give me some advice? Hey, fellow boaters, funny story, you know how I am a newbie to boating? Well, this weekend, I was on the water and I did not know about the holes in the back that need to be plugged. Needless to say, I almost sunk the darn thing! I had'nt noticed the cab area half full of water because I was messing with the motor trying to keep it on. Since I never untied myself from the dock and only drifted about 30 feet from shore, when i noticed the water I quickly pulled myself in and the boad ended up resting on the floor next to the dock. I don't understand why someone would purposely put a hole in the back, but that shows you how much I know.

 

[bowman316]

Re: problems on the high seas!

are you serious?
the hole is to drain the water when you are out of the water
and it needs to be plugged when in the water

 

[jcgizmo69]

Re: problems on the high seas!

Well, now I know! I found out the hard and scary way! Anyways, any thoughts on the problem I am having? I keep getting a grinding noise with a sudden noise when I engage both forward and reverse.

 

[j_martin]

Re: problems on the high seas!

The shift mechanism is a dog clutch, which is just metal to metal, either it's engaged or it's not. Idle should be around 700 rpm, and you shift it smartly so it just klunks once. The rubber hub in the propellor takes up the shock.

If you shift too slow, or if your idle is too high, you do damage to it.

Sounds like you need to hang around the dock with your ears and eyes open for awhile to see how things go.

We'll answer yer questions, though.

It's a good idea to get a hint of the actual problem in the title, like "shifting problem" instead of a mystical tells nothing title like this one.

hope it helps
John

 

[jcgizmo69]

Re: problems on the high seas!

Thanks John! I'll do that! Oh, and about the title, I'll try to be more specific next time! Thanks again!