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12 October 2013, 16:20
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#1
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Member
Country: UK - England
Town: Exmouth - Devon
Make: Avon
Length: 5m +
Engine: Outboard Mariner 60
Join Date: Sep 2013
Posts: 50
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Removing Throttle / transmission cable (Mercury throttle control)
Hi all,
I'd like to remove the top of my console so I have a bit of a winter electrical project, got a few items to install in the console and would like to have a general tidy up.
Not ever fiddling with boats before I find myself stuck trying to remove what I assume to be the throttle and transmission cables from the control unit.
Without wanting to disassemble the whole thing and get faced with a load of comedy springs flying out at me I'm presuming this is a straight foward thing to do?
First off the two screws I've tried to undo are well seized in there, even with a good quality screw driver and a good deal of pressure they don't want to budge. One appears to already be stripping the head
See photos! Can anyone offer me any advice? (before I hack the console and remove the thing complete! I'm also presuming the wiring loom will have a plug coupler in there?
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12 October 2013, 16:44
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#2
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Member
Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 70hp + aux
MMSI: 235087213
Join Date: Jun 2007
Posts: 4,650
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If you remove the bottom section of the throttle control box you'll be able to access the gear and throttle cable. Use a decent philips screwdriver or you'll strip the head of the screws. I prefer to use an interchangeable bit on a power driver. Lean in to it and it will unscrew. Those stainless steel screws rarely seize.
There may be circlips holding the cable ends in position. Once they're off the 33c cable can be removed.
Use a little marine grease to lubricate the cable ends and box internals when refitting.
Regards the wiring loom, I suspect it's bullet connectors with rubber sleeves. Although colour coded, mark the red wires as there are usually a few, feeding power trim, etc.
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12 October 2013, 16:47
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#3
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Member
Country: UK - England
Town: Exmouth - Devon
Make: Avon
Length: 5m +
Engine: Outboard Mariner 60
Join Date: Sep 2013
Posts: 50
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Great thanks, I presume its the two smaller screws on the bottom and the larger cross head (fixing the unit to the console) ?
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12 October 2013, 19:02
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#4
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Member
Country: UK - Scotland
Town: Argyll
Boat name: Helena
Make: Birchwood
Length: 5m +
Engine: Inboard Diesel 250hp
Join Date: Jun 2011
Posts: 116
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Yes that's right take the two smaller screws out and the single bigger one fixing it to the console. I've had to drill the heads off the crews before to get the cover off and use vice grips to get the screws out and replacing them. They are bad for seizing in.
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12 October 2013, 21:50
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#5
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Member
Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 70hp + aux
MMSI: 235087213
Join Date: Jun 2007
Posts: 4,650
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No need to drill em out... (they're stainless steel 316). If the bit doesn't fit the head, stop. Get the right attachment. Trust me, with the right phillips head the screw will come out just dandy!
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13 October 2013, 07:40
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#6
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Member
Country: UK - England
Town: Gillingham Dorset
Boat name: Green Marlin
Make: Quickilver
Length: 5m +
Engine: 90hp Mariner
Join Date: Jul 2012
Posts: 293
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Sometimes a good tap on the heads will loosen off the corroded threads
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13 October 2013, 08:03
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#7
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Member
Country: UK - England
Town: Chesterfield
Boat name: Sea Quell
Make: Picton Cobra
Length: 5m +
Engine: Mercury 150 4 Stroke
MMSI: 235038298
Join Date: Sep 2003
Posts: 1,095
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Yes, the bolts and setscrews won't rust but in combination with sea water the alloy does react and can seize the threads as well as binding the mounting bolts to the casting. Dont tap too hard ,,,, you can break the casting. How do I know :O
Since then I always remove each bolt and screw from new, smear with grease and refit. It's then a breeze to disassemble. Good luck
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13 October 2013, 15:39
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#8
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Member
Country: UK - England
Town: bicester
Length: no boat
Engine: outboard only
Join Date: Feb 2009
Posts: 913
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the hard part is getting the screws out of the cover, once that is of I would sugest before dis- assembly that you mark one cable(paint tape etc) and photogragh it so that you have a reference for when you put it together.You will need to remove the control box handle a 13mm socket is required, and the control cables a 8 mm socket or spanner, a socket is easier.
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13 October 2013, 17:00
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#9
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Member
Country: UK - England
Town: Bournemouth
Boat name: Seadrive
Make: Capelli Tempest 470
Length: 4m +
Engine: Suzuki DF70
MMSI: 235079113
Join Date: Jul 2008
Posts: 550
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Quote:
Originally Posted by spartacus
No need to drill em out... (they're stainless steel 316). If the bit doesn't fit the head, stop. Get the right attachment. Trust me, with the right phillips head the screw will come out just dandy!
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Not true - had to drill two out recently (one of which I'd only unscrewed a couple of weeks before!) - the trouble is they are screwing into aluminium. Give the screws a liberal coating of grease before replacing!
Yes, you only need to take the smaller plate off to release the throttle & gear cables. If you take the bigger plate off you need to be very careful you don't damage the small microswitch for the neutral detent (Suzuki control box anyway) & some semi spring-loaded bits - but this should not be necessary or advised.
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13 October 2013, 19:26
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#10
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Member
Country: UK - England
Town: Exmouth - Devon
Make: Avon
Length: 5m +
Engine: Outboard Mariner 60
Join Date: Sep 2013
Posts: 50
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Well a bit of progress! Thanks for all the advice. I did indeed have to drill one of the screws out, it had indeed seized solid from the corrosion of the alloy. Even struggled to get the remainder out with some mole grips. I can't get to the wiring to expose the connectors on the multi core cable to the engine as someone has mentioned above the lever needs to come off. I'm tempted to cut it in the console and fit a decent quality sure seal connector or similar.
Am I correct in presuming that if I take the assembly off the console the handle is bolted in from the back side?
I've also found one if not the reason why the hull is filling with water when it rains! Found this unsealed hole under the seat. Unbelievable.
Beaching the boat a couple of times every summer to drain the water out is not an option any more. didn't take much investigation to find out why this may have been happening. Why the previous owner didn't look into this is beyond me.
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13 October 2013, 19:40
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#11
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Member
Country: UK - England
Town: Dorset & Hants
Boat name: Streaker/Orange
Make: Avon/Ribcraft
Length: 4m +
Engine: 50Yam/25 Mariner
Join Date: Apr 2007
Posts: 5,551
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Inside will look something like this. ..
As advised be super careful not to loose bits!
This is my yam one...but you get the idea.
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13 October 2013, 19:46
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#12
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Member
Country: UK - England
Town: Sticks, N.Yorks
Boat name: Tamanco
Make: Honwave 3.5AE
Length: 3m +
Engine: Tohatsu Outboard
Join Date: May 2012
Posts: 1,176
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Correct on the handle unbolting from the back, usually 13mm socket. Plus one for don't lose any bits (don't ask) but things tend to move about a bit when you take the covers of. Had an intermittent short on my electrics this year down to a wire rubbing in there.
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13 October 2013, 19:46
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#13
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Member
Country: UK - England
Town: Exmouth - Devon
Make: Avon
Length: 5m +
Engine: Outboard Mariner 60
Join Date: Sep 2013
Posts: 50
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Thanks Very much Peter that's a great help. Wish I could do it on a bench rather than on the side of the boat in a horrid wet boat yard!! I'm shocked to see such crap quality connections inside! Though there would be a decent quality loom coupler.
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13 October 2013, 19:48
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#14
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Member
Country: UK - England
Town: Exmouth - Devon
Make: Avon
Length: 5m +
Engine: Outboard Mariner 60
Join Date: Sep 2013
Posts: 50
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Haha thanks Paddlers.
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13 October 2013, 22:10
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#15
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Redbay supporter
Country: UK - England
Town: onn de moov
Boat name: bote
Make: kevvin
Length: 4m +
Engine: jett dryve
Join Date: Jan 2010
Posts: 455
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Quote:
Originally Posted by spartacus
Those stainless steel screws rarely seize.
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Wiv advises lyke dat orl iyve gott too saiy iz...........
Iym nott spartacuss
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fuk mee crismus leeve wiv noe ankul tagg
Wher doo I beegin?😃
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13 October 2013, 22:35
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#16
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Member
Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 70hp + aux
MMSI: 235087213
Join Date: Jun 2007
Posts: 4,650
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Quote:
Originally Posted by wiLlfish
Wiv advises lyke dat orl iyve gott too saiy is...
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Sports socks... 3 for a pound!
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14 October 2013, 00:20
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#17
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Member
Country: UK - England
Town: Bournemouth
Boat name: Seadrive
Make: Capelli Tempest 470
Length: 4m +
Engine: Suzuki DF70
MMSI: 235079113
Join Date: Jul 2008
Posts: 550
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mine has two fairly short wiring 'tails' from the box - that then plug into two multi-connectors inside the console.
You can make out the micro-switch in Peter's pic - the small actuator button fits into a detent on the main 'gear' wheel - its kinda spring loaded there and is very easy to sheer off when closing the control box - if this happens your engine will not start as the engine will think its still in gear - so be careful
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14 October 2013, 00:21
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#18
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Member
Country: UK - England
Town: Bournemouth
Boat name: Seadrive
Make: Capelli Tempest 470
Length: 4m +
Engine: Suzuki DF70
MMSI: 235079113
Join Date: Jul 2008
Posts: 550
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Its the black bit in Peter's pic
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14 October 2013, 09:39
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#19
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Member
Country: UK - England
Town: bicester
Length: no boat
Engine: outboard only
Join Date: Feb 2009
Posts: 913
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the micro switch in the merc/mar control box is a in-gear start protection, ie wont start if the lever is in any gear possition.Ah control boxs there is nothing like sitting on the tube of a rib in the pouring rain, a cup of coffee by your side , soaking wet , water dripping of the end of your fag, (thats a cigarrette to you Americans)the customer gone and all that is left is playing dodge the seagull crap, happy days!
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14 October 2013, 10:45
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#20
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Member
Country: UK - England
Town: Exmouth - Devon
Make: Avon
Length: 5m +
Engine: Outboard Mariner 60
Join Date: Sep 2013
Posts: 50
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Summed up perfectly from what it seems Al, I'm learning quickly! Not a fag in sight here though, american or british version. I don't partake in either.
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