Reply
 
Thread Tools Search this Thread
 
Old 18 November 2008, 14:15   #1
Member
 
Country: UK - England
Town: Sheffield
Boat name: Touch Bottom
Make: Avon
Length: 4m +
Engine: 50 hp Merc Power t&t
Join Date: Jul 2008
Posts: 239
Trim Gauge

Hi. I have recently finished installing power t&t on my 50hp. Brown band Mercury O/B. I have just added a trim gauge but the reading seems to be reversed. ie. when the engine is in the up position the needle points to the Down symbol, and vice versa. I have tried adjusting the sender unit, and putting it on the other way round but it makes no difference. Is there anything else I can do, or do I have to live with it.
__________________

__________________
Mercury is offline   Reply With Quote
Old 18 November 2008, 14:17   #2
Member
 
Nasher's Avatar
 
Country: Other
Town: Principalite d'Chaos
Boat name: The Nashers Revenge!
Make: Ocean & Bombard
Length: 6m +
Engine: Suzi DT200EFI, DT9.9
MMSI: "Mmmmm SI" she said!
Join Date: Jan 2004
Posts: 4,147
Try swapping the wires over on the back of the gauge.

Nasher
__________________

__________________
RIBBED For extra pleasure.
Member of the ebay Blue RIB cover club.
Member of the Bombard 380 Aerotec club
Nasher is offline   Reply With Quote
Old 18 November 2008, 14:49   #3
Member
 
Country: UK - England
Town: Sheffield
Boat name: Touch Bottom
Make: Avon
Length: 4m +
Engine: 50 hp Merc Power t&t
Join Date: Jul 2008
Posts: 239
Quote:
Originally Posted by Nasher View Post
Try swapping the wires over on the back of the gauge.

Nasher
I thought of that, but am a bit reluctant. in case it does any damage. There are Three connections on the gauge, live, earth, and send. I have the Brown wire with White trace connected to send, Purple to live, Black to earth. I am sure this is the right way round, so will it do any damage connecting any other way?
__________________
Mercury is offline   Reply With Quote
Old 18 November 2008, 14:54   #4
Member
 
Nasher's Avatar
 
Country: Other
Town: Principalite d'Chaos
Boat name: The Nashers Revenge!
Make: Ocean & Bombard
Length: 6m +
Engine: Suzi DT200EFI, DT9.9
MMSI: "Mmmmm SI" she said!
Join Date: Jan 2004
Posts: 4,147
If it was me, I'd try swapping the +ve and -ve over, but its not me, and I wouldn't want to be held responsible for any damage

Nasher.
__________________
RIBBED For extra pleasure.
Member of the ebay Blue RIB cover club.
Member of the Bombard 380 Aerotec club
Nasher is offline   Reply With Quote
Old 18 November 2008, 15:46   #5
Member
 
Country: UK - England
Town: Warwickshire
Boat name: True Blue
Make: Humber ocean pro 6.3
Length: 6m +
Engine: Mercury 150 opti
Join Date: Oct 2005
Posts: 456
Sounds like you have the wrong sender unit fitted to the engine, I would check that one first
__________________
Ian Sharlot is offline   Reply With Quote
Old 18 November 2008, 16:03   #6
Member
 
Country: UK - England
Town: Portsmouth, UK
Boat name: Jelly Fish
Make: Quicksilver 3.8XSHD
Length: 3m +
Engine: Mariner 25MEFI
MMSI: 235905473
Join Date: May 2008
Posts: 130
Most senders are only a pot, + on one end, - on the other and sig out the middle. Swap the + and - and the signal will be reversed.

Have a look and maybe try that.

Swapping the + and - on the gauge is likely to cause the can of smoke that lives in all electronics to be let off!!!
__________________
Geoff
geoffs is offline   Reply With Quote
Old 18 November 2008, 17:06   #7
Member
 
Country: UK - England
Town: Hamble
Length: 9m +
Join Date: Dec 2002
Posts: 2,317
Sounds like you've got the wrong gauge. What make is it?
__________________
It is better to remain silent and be thought a fool, than to speak and remove all doubt!
Dirk Diggler is offline   Reply With Quote
Old 19 November 2008, 11:38   #8
Member
 
Country: UK - England
Town: Sheffield
Boat name: Touch Bottom
Make: Avon
Length: 4m +
Engine: 50 hp Merc Power t&t
Join Date: Jul 2008
Posts: 239
Quote:
Originally Posted by Dirk Diggler View Post
Sounds like you've got the wrong gauge. What make is it?
The Gauge is Mercury Part No. 79-859693-A1. The sender unit is Quicksilver Part No. 821180A3. All Brand new stuff, well it was still in it's box.
__________________
Mercury is offline   Reply With Quote
Old 19 November 2008, 11:52   #9
Member
 
Country: UK - England
Town: Hamble
Length: 9m +
Join Date: Dec 2002
Posts: 2,317
Yeh, I reckon you've got the wrong gauge. The part # you have for the sender is for a 100 & 115hp, but specifically for a Sea Ray. These were a range of motors that were painted white, and I reckon they didn't have Merc instruments, probably Faria or similar. Of course, I could be talking utter Sh*te, but the sender info is correct!
__________________
It is better to remain silent and be thought a fool, than to speak and remove all doubt!
Dirk Diggler is offline   Reply With Quote
Old 19 November 2008, 12:17   #10
Member
 
Country: UK - England
Town: Hamble
Length: 9m +
Join Date: Dec 2002
Posts: 2,317
What side of the motor are you mounting it, coz the parts finder shows it on the port side.
__________________

__________________
It is better to remain silent and be thought a fool, than to speak and remove all doubt!
Dirk Diggler 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 01:14.


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