Reply
 
Thread Tools Search this Thread
 
Old 14 June 2010, 03:44   #1
Member
 
Country: UK - England
Boat name: Seashell
Make: Redbay
Length: 7m +
Engine: Inboard diesel
Join Date: Jan 2004
Posts: 5,261
Yamaha 100hp trim issue

A friend of mine has just bought an Avon 560 with this on the back. It's got an issue with the trim I'm trying to sort out. The engine tilts fine, until you tilt it all the way up. When it goes all the way up it refuses to come back down again. (Unless you release the emergency tilt screw) It's most odd!

Can anyone gives me any clues what could be going on here. I've made a short video of it: the first noise it trimming down, then up, then down again:

[YOUTUBE]DT1Bm8_J3do[/YOUTUBE]
__________________

__________________
Tim M is offline   Reply With Quote
Old 14 June 2010, 11:06   #2
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 235090687/235055163
Join Date: Jul 2005
Posts: 12,645
RIBase
Quote:
Originally Posted by Tim M View Post
A friend of mine has just bought an Avon 560 with this on the back. It's got an issue with the trim I'm trying to sort out. The engine tilts fine, until you tilt it all the way up. When it goes all the way up it refuses to come back down again. (Unless you release the emergency tilt screw) It's most odd!

Can anyone gives me any clues what could be going on here. I've made a short video of it: the first noise it trimming down, then up, then down again:
Have you checked the fluid level? If it's low the pump will cavitate and spin in foamed fluid at full tilt.
__________________
Need spares,consoles,consumables,hire,training or even a new boat?

Please click HERE and HERE and support our Trade Members.

Join up as a Trade member or Supporter HERE
Nos4r2 is offline   Reply With Quote
Old 14 June 2010, 13:24   #3
RIBnet supporter
 
Jizm's Avatar
 
Country: UK - England
Town: Southampton
Boat name: Hissing Sid
Make: Ross Smith Cobra
Length: 6m +
Engine: 200HP Optimax
MMSI: 235038046
Join Date: Jun 2002
Posts: 3,803
Quote:
Originally Posted by Nos4r2 View Post
Have you checked the fluid level? If it's low the pump will cavitate and spin in foamed fluid at full tilt.
Would be my first port of call aswell.......
Jizm is offline   Reply With Quote
Old 14 June 2010, 13:32   #4
Member
 
Country: UK - England
Boat name: Seashell
Make: Redbay
Length: 7m +
Engine: Inboard diesel
Join Date: Jan 2004
Posts: 5,261
Haven't had a chance to have a proper look at anything yet. I did consider fluid level but assumed that if there wasn't enough in there it wouldn't have gone all the way up in the first place. Will have a tinker in the morning
__________________
Tim M is offline   Reply With Quote
Old 14 June 2010, 14:53   #5
Member
 
Country: UK - England
Town: Gloucestershire
Boat name: Osprey
Make: Osprey Vipermax
Length: 5m +
Engine: E-tec 300 G2
MMSI: TBC
Join Date: Dec 2006
Posts: 4,013
Quote:
Originally Posted by Tim M View Post
Haven't had a chance to have a proper look at anything yet. I did consider fluid level but assumed that if there wasn't enough in there it wouldn't have gone all the way up in the first place. Will have a tinker in the morning
deffo fluid level as you tilt up the cylinders are filling up and when the reservoir empties there is no fluid left for the pump to suck in to start the return trip Down.
__________________
---------------------------------------------------
Chris Stevens

Born fiddler
Chris is offline   Reply With Quote
Old 14 June 2010, 16:08   #6
Member
 
Country: UK - England
Town: Surrey
Length: no boat
Join Date: Feb 2009
Posts: 215
trim

your PISTON SHUTTER valve that allows the fluid to return is your PROBLEM . The valve is not coming off the seat . HAD alot of probs with this issue . I BET your engine is a F100A
__________________
outboardtech is offline   Reply With Quote
Old 14 June 2010, 16:28   #7
Member
 
Country: UK - England
Boat name: Seashell
Make: Redbay
Length: 7m +
Engine: Inboard diesel
Join Date: Jan 2004
Posts: 5,261
Quote:
Originally Posted by outboardtech View Post
I BET your engine is a F100A
Correct

Having looked through the paperwork for the boat this afternoon it would seem this engine has suffered with this problem several times before.

What's the fix for this?
__________________
Tim M is offline   Reply With Quote
Old 14 June 2010, 16:32   #8
Member
 
Country: UK - England
Town: Gloucestershire
Boat name: Osprey
Make: Osprey Vipermax
Length: 5m +
Engine: E-tec 300 G2
MMSI: TBC
Join Date: Dec 2006
Posts: 4,013
Quote:
Originally Posted by Chris View Post
deffo fluid level as you tilt up the cylinders are filling up and when the reservoir empties there is no fluid left for the pump to suck in to start the return trip Down.
Ok perhaps not then
__________________
---------------------------------------------------
Chris Stevens

Born fiddler
Chris is offline   Reply With Quote
Old 25 June 2010, 09:17   #9
Member
 
Country: Ireland
Town: clifden
Boat name: outbound
Make: avon 6m\ osprey 6,25
Length: 6m +
Engine: outboard suzi df140
Join Date: Sep 2009
Posts: 42
yamaha f 100

the fix for this is to replace valves, the big screw at t bottom of t ram facing you and the other one is behind it , prop up t engine end loosen t trim unit and get it from t back, worked for me 4 years ago its a common fault, also keep an eye on your regulator they tend to overcharge and can set t engine on fire i have seen this on 2 engines , mine i had changed but it had melted, my friends went on fire but he saved it. good luck
__________________
nan-ber is offline   Reply With Quote
Old 25 June 2010, 09:56   #10
RIBnet supporter
 
C2 RIBS's Avatar
 
Country: UK - England
Town: Hants
Boat name: Gemineye
Make: Ribeye S850 charter
Length: 8m +
Engine: 300hp
MMSI: 235097445
Join Date: Sep 2007
Posts: 3,029
Quote:
Originally Posted by outboardtech View Post
your PISTON SHUTTER valve that allows the fluid to return is your PROBLEM . The valve is not coming off the seat . HAD alot of probs with this issue . I BET your engine is a F100A
As I run a new version of this do I need to do anything? has there been a product recal?
__________________
Ian
Rib charter and Rib hire with www.c2ribs.co.uk
C2 RIBS 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 02:32.


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