Outdrive & tach problems

scook

scook

God
Finally got the boat ('85 V-20 cuddy) in the water and it started right up, but:

1) The outdrive wouldn't go down. The pump howled, but no movement - even with a guy standing on the drive for encouragement.

2) The tach pegs as soon as the motor is started and stays there at any RPM.

My mechanic buddy took the manuals home to study, but we would welcome any comments you guys might have.

Thanks - Scott
 
When they are peged they are shorted some where??

Not saying you are stupid or anything!! But I had a friend call me and make me go to his house, his out drive would not move eaither?? Said he checked the fluid and all??

I found the problem in 3 seconds, He forgot to lift the tilt locks!! LMFAO

Take the fill screw off and see if you can get it to come down then?? That should release the perssure.

Just by your post I am thinking that you have I/O?? The pump may work, but try looking at the wires, or the selnoid, they are great for corrsion!!
Make sure the fluid is full. No broken hoses, ect ect....
 
Yeah, the boat was "professionally" rewired when I got it, and it took me a couple of hours to trace out and get power to a replacement anchor light - I'll definitely check the tach wiring.

About the outdrive - it's a Mercruiser 3.7L(?) - it's a 170 engine. MJ, you may need to hold on to your A with both hands, but I can't find anything that looks like tilt locks on it anywhere - what am I missing? Are they manual/electric/? I'll check the fluid/wiring to the pump/etc. as soon as I can get back to it. Good news is that I got it into the shop (thought it might be too tall) so I won't freeze MAO working on it.
 
Got a little time to work on the outdrive. Most of the wires are corroded off, where they come out of the rubber boot going to the sensors, and the sensors have a fair amount of rust in em.

Anybody know if I can just pull new wires in using the old ones, or does the drive need to come off? It looks like the wires come out under water, so I'm a little concerned about getting a good seal. Any advice?

Thanks - Scott
 
it sounds like you should replace the senders,,,,,,you cant just replace the wires,,,,,,when its time to do that you need change the bellows an excaust bellows at the same time ,this way you do it once ,an forgetaboutit,for a few years
 
Thanks guys, I think we're going to dive into it. I got the same advice from a repair guy at the boat show - it's time for a service: bellows, sensors, grease the u-jount, etc.
 
Shicks,

Is that what you used to stretch the mouth on that poor kid in your picture?

I can see something like that being pretty handy. How long does it take to get, if I need one, and what's your shipping charge?

Thanks - Scott
 
Ahhh, actually that's what I was thinking about doing - it looks pretty simple. Do you don't have a picture/measurements of yours? Thanks
 
I wish I had that when I did mine!!!
We did it with out it, and I will tell you there were alot of F this and F that and F you's going on!! and it took 2 days of F ing this and F ing that!!
I still have no idea how we got it to go!! Another reason I hate I/O's!!!!!!!!!!!!!!!!!!!!!
 
I definitely don't have the dough to change to an outboard at this point. What do you guys think about just putting on a new aftermarket outdrive instead of messing around with the old one? I think I can get one for around a grand.
 
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