|
29-03-2009, 05:25 PM
|
#1
|
Registered User
Country: UK
Location: Thorpe Bay
Occupation: IT Director, www.lighthouseit.co.uk
Interests: Boats, Surfing & Snowboarding
Boat name: Isabella / Cool Runnings II / Bella / Sea Pup / Sea Dog / Speedy II / Bernico F3
Boat make: Colvic 35 Suncruiser / Bernico F3 / Phantom 16 / Zodiac 420 YL / RIB / Apollo 9
Engines: 2 x Perkins Sabre 225ti / Mercury Pro XS /Mercury Pro XS 115/ Tohatsu 2.5 / Mercury 25 / Mercury 50
Cruising area: Thames Estuary / River Crouch / Salcombe
Join Date: Jun 2004
Location: Thorpe Bay
Posts: 932
|
Sticking throttle
Hi all,
Just launched the boat today, engine running great. Went out of the marina got onto the plane the last 20% of throttle on the remote was really stiff had to push it down hard to get full power. When I throttled back the remote was not stiff but the engine remained high revving even though the remote was in neutral. Finally managed to switch the engine off engage reverse and get the revs back to normal. Boat was fine again until wanted to go flat out when the throttle again stuck on high revs even in neutral. Any pointers please?
Yamham 100HP four stroke with remote throttle lever, the engine revs up fine when not in gear.
Many thanks
Stewart
__________________
__________________
Loving the Spitfire with a 25HP Mercury
|
|
|
29-03-2009, 06:48 PM
|
#2
|
Registered User
Occupation: Champion Pie Eater
Boat name: On The Rocks
Boat make: Ring 21 marshan 17 four winns horizon, hydro 3 pointer, f2 cat, backdraft 22
Cruising area: Way up norf and Sarf coast areas
Join Date: Apr 2007
Posts: 1,619
|
Check that the engine end of the throttle cable is not bent or has corrosion on it or that water has not got into the control box over the winter could be corroded at the top end,
You could also check that throttle arm on the engine is well lubed up,
In the winter i disconnet cables and run oil down them with a tiny funnel taped to the top of them,
gaZ
__________________
|
|
|
29-03-2009, 09:16 PM
|
#3
|
Registered User
Country: UK
Location: Thorpe Bay
Occupation: IT Director, www.lighthouseit.co.uk
Interests: Boats, Surfing & Snowboarding
Boat name: Isabella / Cool Runnings II / Bella / Sea Pup / Sea Dog / Speedy II / Bernico F3
Boat make: Colvic 35 Suncruiser / Bernico F3 / Phantom 16 / Zodiac 420 YL / RIB / Apollo 9
Engines: 2 x Perkins Sabre 225ti / Mercury Pro XS /Mercury Pro XS 115/ Tohatsu 2.5 / Mercury 25 / Mercury 50
Cruising area: Thames Estuary / River Crouch / Salcombe
Join Date: Jun 2004
Location: Thorpe Bay
Posts: 932
|
many thanks - will let you know what the problem is
__________________
Loving the Spitfire with a 25HP Mercury
|
|
|
02-04-2009, 10:32 PM
|
#4
|
Registered User
Country: UK
Location: Thorpe Bay
Occupation: IT Director, www.lighthouseit.co.uk
Interests: Boats, Surfing & Snowboarding
Boat name: Isabella / Cool Runnings II / Bella / Sea Pup / Sea Dog / Speedy II / Bernico F3
Boat make: Colvic 35 Suncruiser / Bernico F3 / Phantom 16 / Zodiac 420 YL / RIB / Apollo 9
Engines: 2 x Perkins Sabre 225ti / Mercury Pro XS /Mercury Pro XS 115/ Tohatsu 2.5 / Mercury 25 / Mercury 50
Cruising area: Thames Estuary / River Crouch / Salcombe
Join Date: Jun 2004
Location: Thorpe Bay
Posts: 932
|
Problem now storted after worrying about stretched throttle cables and replacing ultraflex cables. It turns out that a bit of grease and WD40 fixed the problem. I disassembled the control box and regreased it.
I did however notice that upon returning the control to neutral (from flat out) there is a delay in the carbs throttle bodies returning their idle position almost like a soft close action on a kitchen draw for want of a better discription. Is this normal?
Many thanks again
Stewart
__________________
Loving the Spitfire with a 25HP Mercury
|
|
|
03-04-2009, 09:16 AM
|
#5
|
Registered User
Occupation: Champion Pie Eater
Boat name: On The Rocks
Boat make: Ring 21 marshan 17 four winns horizon, hydro 3 pointer, f2 cat, backdraft 22
Cruising area: Way up norf and Sarf coast areas
Join Date: Apr 2007
Posts: 1,619
|
Stronger return spring
gaZ
|
|
|
03-04-2009, 09:26 AM
|
#6
|
Registered User
Country: Scotland
Location: Kirkcudbright
Interests: Boats n Lambrettas
Boat make: Boatless
Join Date: Mar 2004
Location: Kirkcudbright
Posts: 978
|
A bit of carb cleaner around the butterfly should remove any gunk thats slowing the return.
Quote:
Originally Posted by gazza
Stronger return spring
gaZ
|
__________________
|
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Threads |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
All times are GMT +1. The time now is 07:15 PM.