Prop/Lower Unit Click Issue

[Jshv420]

Re: Prop/Lower Unit Click Issue

I'm going to look into the shift cable. Everything I'm pretty sure was put back excatly like it was taken out. Prop will spin one way and clicks the other in both forward and reverse, neutral is smooth. I don't know though how that will apply to the impeller not spinning. I'll take a look at it this weekend and report back. Thanks for all help.

 

[chiefalen]

Re: Prop/Lower Unit Click Issue

May i explain you have a clutch dog, it goes back and forth engaging the gear.

Hence the name dog, when the dog does not engage fully you will hear a click,click,click.

Ok, When you move the throttle, a cable runs to the shift converter, that converter will move another cable, lower cable to the out drive.

That lower cable, moves a lever, that lever moves the shift shaft, a shaft that is connected to the dog, the dog moves,engages the gear forward, reverse.

Your job if you chose to accept it, is to find why the shift shaft does not move the dog fully engaging the gear.

Understand?

 

[Jshv420]

Re: Prop/Lower Unit Click Issue

Ya I'll take a look at the book for that challenge. haha

 

[Jshv420]

Re: Prop/Lower Unit Click Issue

So today I took off the lower unit again to inspect the problem. Found the impeller teeth going opposite directions so I assume it was installed backward. Everything else was fine except this. Cleaned out oil in lower unit and ran air through. Found some nasty grey oil. Also Ran air through impeller water holes to get it cleaned out. Noticed a peppering of metal shavings comming out of the top of the outdrive. Assume the problem must be up there. I will find out tomorrow when I reinstall the lower unit and get the impeller going the right way. Hopefully everything works out but if not looks like im going inspecting up there. Anyone ever had to redo the top half of the outdrive? Is this a hard task?

 

[ziggy]

Re: Prop/Lower Unit Click Issue

interesting. i guess i was under the impression that gen. II impellers would self right themselves if installed incorrectly. looks like that may be incorrect...

the sm, on pp 3B-76, item 5 tells you to spin the drive shaft cw while pushing the houseing on to help ease with install. this will also set the blade of the impeller in the correct direction....

good deal ya found yer issue though.. bummer about the metal frags though. any seal wear at the base of the waterpump and at the top of the drive shaft, on the shaft itself? my 1 drive had grooves like this in it's driveshaft. no metal in the lub that i can remember though. if yer getting metal in your gear lub. them metal fragments are going throughout the drive too via the drive lub that is commone to both upper and lower. chewing up seals and gears as they get circulated.

Anyone ever had to redo the top half of the outdrive? Is this a hard task?

i've only worked on the drive gear. which aint much teardown.. it took seveal specialty mercruiser tools that aint cheap. and it took reading the service manual over and over and asking many questions here on iboats to just do that little... doing the hole thing, well. ya obviously got the service manual. it's a long read about the procedure and it's all there in black and white...it tells you the exact procedure you'll need to take to go inspect it and repair it's defeciancies.

sorry to keep on ya about the service manual. but they really are a wealth of facts and info. so far, when i'm doing a job, i need to read the sm sentence by sentence. they put a lot of info in a few words.... put it in the bathroom with ya for some extra reading time.... just a thought....

 

[Jshv420]

Re: Prop/Lower Unit Click Issue

Ya I thought the same thing. Everywhere I read around the internet said not to worry about direction but, one tooth was going one way while another tooth was going towards it so I think that might have lead to the issue.

I'm going to take a look at the book to install it and not rely on the guy who helped. Maybe this time it'll be done right. haha

The grooves on the top of the lower unit drive shaft look perfect. No wear or anything. Everything feels tight and spun well. I'm going to check out the housing that holds the drive shift and see how it looks tomorrow. I didn't drain all the oil out of the outdrive so what oil was remiaing that was dripping out of the top around the gear shifter was deff peppered with metal which led me to believe the problem was up there since I could never get the lower unit to spin with the engine running. The oil that came out of the lower unit with the vent and drain holes looked to be alright without the shavings.

I'm hoping the seals and gears are ok. All the seals I saw on the lower unit look alright but I'm going to look over the manual today and check on everything since it is out.

I deff understand now about the manual a little better. I relied on an auto mechanic who use to own boats so I assumed he knew what he was doing. I'm not putting full blame on him because the previous owner, it doesn't look like took very good care of the boat, in its later years. Hopefully everything is ok though.

Overall thanks for everyones input and I'll will let you know later today.

 

[chiefalen]

Re: Prop/Lower Unit Click Issue

I knew there was more to it than the op.

Why people think, when they buy a older boat, they can just drop it in the water and just motor along?

Or is it just me?

The ocean is a unforgiving place to have a breakdown, you just can't pull over to the side of the road, get out and have a cup of coffee while the tow truck comes.

Take it from me i did everything right and still 2 times i had to get towed back in.

Take nothing for granted, inspect everything.

Take off the drive drain the oil, smell the oil, touch the oil, metal in the oil is a BAD thing.

Do it before you go on the water the first time.

Look at the gears, what do you see?

Chipped teeth, missing teeth ?

How are the bearing?

Loose as a goose?

Flat spots when you turn the shaft?

Feel it when you turn it?

To tight, rusted?

All signs just got to be able to read them.

 

[Jshv420]

Re: Prop/Lower Unit Click Issue

Well the worst has been confirmed. Took the top cover off to look into the upper drive assembly and the gears have been all chewed up. Housing isn't in terrible shape but gears have deff broken up and will need a rebuild. Thanks for everyone helps so far. Much appreciated.

 

[ziggy]

Re: Prop/Lower Unit Click Issue

and the gears have been all chewed up.

might be time to look at a sei drive.... i read mostly good things about them from comments here.... dollars wise, i'd guess you'll end up ahead with new sei vs. rebuild existing..... just a guess...

http://www.sterndrive.cc/

support iboats too.... i believe these drives are sold here also...

 

[Jshv420]

Re: Prop/Lower Unit Click Issue

Ya, that's the first place I went to, looking for a new outdrive. The prices are great ($1395) and a 3 year warrenty over the mercruiser rebuild is alot better. Plus for the price of the SE116, I could buy two of those with 6 years of warrenty vs. one mercruiser REBUILD for one year warrenty.