Reply
 
Thread Tools Search this Thread
 
Old 06 September 2010, 10:00   #1
Member
 
Country: Other
Town: Lisbon
Boat name: Meu Menino
Make: Valiant
Length: 4m +
Engine: Mariner 30EFI
Join Date: Mar 2009
Posts: 15
Send a message via MSN to AncientMariner
Problem with Mariner 30EFI - prop sliping?

Hello,

Last sunday went for a fishing ride almost 4 months after the last ride. The rib is kept in my garage safe from the elements.

On the way I started to notice a kind of ressonance coming from the engine but could not tell from where it came. At first I thought it was from the cowl.

After a couple starts and stops looking for fish, we headed home but stopped one last time to try our luck. That was when I noticed something strange. I put the gear in neutral and stopped the motor and after the motor stopped I heard a clacking sound coming from undewater.

On the way back it revved fine at 5000 rpm and planed without problems.

After returning to the slipway I checked the prop and after turning it by hand, I found the clacking sound came from somewhere in the gearbox or the hub.

The strangest thing is that after putting the engine into gear, I was still able to turn the prop by hand... I thought to myself "This isnt right, it should be like pushing a car in gear... it shouldn't move".

I think I have a problem somewhere but found no clues on this forum or the Net.

Can someone please help me? What could be wrong?

The engine is 2 years old, has about 150 hours and had its anual maintenance in April.

Thanks

Hugo Oliveira
__________________

__________________
-----------
Hugo
AncientMariner is offline   Reply With Quote
Old 06 September 2010, 10:06   #2
Member
 
Country: UK - England
Town: bicester
Length: no boat
Engine: outboard only
Join Date: Feb 2009
Posts: 894
if you put your obm into forward gear it will ratchet if you turn it in one direction ,and only turn a little bit and then stop if you turn it in the other direction if you are still in doubt give me a ring 01869 326411
__________________

__________________
uncle al is offline   Reply With Quote
Old 07 September 2010, 04:24   #3
Member
 
Country: Other
Town: Lisbon
Boat name: Meu Menino
Make: Valiant
Length: 4m +
Engine: Mariner 30EFI
Join Date: Mar 2009
Posts: 15
Send a message via MSN to AncientMariner
Hi!

Last night I found out what's going on with the shifting. It seems that when I shift the remote to forward and then back to neutral again, the gears dont detach.

When I shift the remote to reverse and then to neutral, the gears decouple and the prop turns freely as it should.

So, the problem is a fine tuning of the shifting mechanism.

On shifting the rod that goes to the lower unit, there is a screw that I supose is meant to do that. Is there another way to fix this like on the 'arm' that is inside the engine and comes from the cable form the remote?
__________________
-----------
Hugo
AncientMariner is offline   Reply With Quote
Old 08 September 2010, 04:41   #4
Member
 
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,610
I don't know this engine partcularly well, but as it's a 30 there is a chance you may have gubbins inside for tiller operation.

So, the threee places I would look are:

1) where the cable joins the engine. the end fitting wil llikely be on a long thread, or the adjuster will be there (for external "tiller" gears).
2) somewhere on the way down leg, although I haven't seen that on an engine designed after about 1975!)
3) at the remotes.

Probably worth checking for slack in the cable run as well (I had a set of remotes where the plastic bushes had worn out, so ther was a good 5 degrees of lever movement in either direction before anything happened at the engine.
__________________
9D280 is offline   Reply With Quote
Old 08 September 2010, 05:46   #5
Member
 
Country: Other
Town: Lisbon
Boat name: Meu Menino
Make: Valiant
Length: 4m +
Engine: Mariner 30EFI
Join Date: Mar 2009
Posts: 15
Send a message via MSN to AncientMariner
Thanks 9D280!

My setup is a Valiant V400 with a console, steering wheel and remote lever.

My first step will be to check on the union between the cable and the engine, then, on to the remote to see if there is salt deposits or gunk around the mechanism.
__________________
-----------
Hugo
AncientMariner is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 20:02.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.