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21 March 2014, 14:45
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#1
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Member
Country: UK - Wales
Town: Holyhead
Boat name: W30
Length: 5m +
Engine: RIBTEC
Join Date: Mar 2014
Posts: 18
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Ribtec
Hello Guys,
Im new here and I am looking for some advice, I have a RIBTEC 5.8m with a Yamaha 2 stroke 90hp,the 90hp engine has been giving me trouble, I have been offered a great bargain on a Yamaha 115 v4 2stroke engine, will this engine be too heavy/ powerful for the RIB?
Thanks Andy.
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21 March 2014, 14:50
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#2
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Member
Country: UK - England
Town: Chorley / Holyhead
Boat name: Northwind Challenger
Make: Tornado
Length: 6m +
Engine: Mariner 115 efi CT
MMSI: 235080598
Join Date: Jun 2011
Posts: 1,411
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at a guess i would say power should be fine, but the yam v4 is a thirsty engine. looked at one but decided against it
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"Life may often suck, but the alternative is unacceptable"
MMSI Sticker
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21 March 2014, 15:02
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#3
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Member
Country: UK - Wales
Town: Holyhead
Boat name: W30
Length: 5m +
Engine: RIBTEC
Join Date: Mar 2014
Posts: 18
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haha dont care about the fuel as long as the back of the boat doesnt get ripped off and sink!
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21 March 2014, 15:06
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#4
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Member
Country: UK - England
Town: Cornwall
Length: no boat
Join Date: Oct 2004
Posts: 1,518
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115 will be fine, I've got a 150 Opti on mine!
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21 March 2014, 15:08
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#5
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Member
Country: UK - Wales
Town: Holyhead
Boat name: W30
Length: 5m +
Engine: RIBTEC
Join Date: Mar 2014
Posts: 18
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Happy days, ... however it does have a plate on the back saying recommend hp 90! Thanks for the quick replies by the way guy
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21 March 2014, 15:36
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#6
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Member
Country: UK - England
Town: Cornwall
Length: no boat
Join Date: Oct 2004
Posts: 1,518
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Quote:
Originally Posted by Woosy
Happy days, ... however it does have a plate on the back saying recommend hp 90! Thanks for the quick replies by the way guy
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Hang on that doesn't sound right, my 5.35 Ribtec was rated to 90hp
Ribtec 5.85's were rated to either 120 or 150 depending on year of manufacture.Sure your's is a 585?
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21 March 2014, 16:12
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#7
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Member
Country: UK - Wales
Town: Holyhead
Boat name: W30
Length: 5m +
Engine: RIBTEC
Join Date: Mar 2014
Posts: 18
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Maybe mine is a 5.3 then? yikes!!
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21 March 2014, 16:24
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#8
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Member
Country: UK - England
Town: Cornwall
Length: no boat
Join Date: Oct 2004
Posts: 1,518
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Quote:
Originally Posted by Woosy
Maybe mine is a 5.3 then? yikes!!
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could be! got any pic's?
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21 March 2014, 16:28
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#9
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Member
Country: UK - Wales
Town: Holyhead
Boat name: W30
Length: 5m +
Engine: RIBTEC
Join Date: Mar 2014
Posts: 18
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Trying to upload a couple now but im overseas and the net is rubbish! i will keep trying, thanks mate
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21 March 2014, 17:07
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#10
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Member
Country: UK - England
Town: River Hamble
Length: 6m +
Join Date: Oct 2005
Posts: 726
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The early 585s were rated to 90hp later it was changed to 130. When I worked for Ribtec we rigged loads with the Yamaha 130V4 and they went very well.
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RIB REPAIRS | RE-TUBES | RE-FIT - OUTBOARD SERVICING - ONLINE SHOP FOR RIB & TOHATSU PARTS .
Phone: 01489 556800 www.rib-shop.com
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21 March 2014, 17:34
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#11
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Member
Country: UK - Wales
Town: Holyhead
Boat name: W30
Length: 5m +
Engine: RIBTEC
Join Date: Mar 2014
Posts: 18
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Thanks Ribshop, So they must have strengthened the transom on the later models?
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21 March 2014, 19:08
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#12
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Member
Country: UK - England
Town: Cornwall
Length: no boat
Join Date: Oct 2004
Posts: 1,518
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Looking on your profile pic's you have hull number 94184 which is the 184th boat of 1994. I had a 1995 5. 35 rated to 90hp and my current 1995 5. 85 is rated to 120 hp, looking at your other pic I'm pretty sure that's a 5.35. The hull is the dead giveaway -
white hull one is a 535, and the neapolitan is a 585!
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21 March 2014, 19:15
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#13
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Member
Country: UK - England
Town: Bransgore, Christchurch
Boat name: Clementine
Make: Ribtec 535
Length: 5m +
Engine: 2x Mariner 40 (6E9)
MMSI: Handheld no DSC
Join Date: Jun 2013
Posts: 84
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Yes looking at the profile pic it looks the same size as my 535
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Dave Swain.
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21 March 2014, 19:24
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#14
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Member
Country: UK - Wales
Town: Holyhead
Boat name: W30
Length: 5m +
Engine: RIBTEC
Join Date: Mar 2014
Posts: 18
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ok guys, so, i have figured out that my boat is actually a 535 not a 585.. duh, my bad! so i guess the good deal offered on the Yamaha 115 is not going to work? or does anyone know if it possible to strengthen the transom?
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21 March 2014, 20:00
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#15
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Member
Country: UK - England
Town: Cornwall
Length: no boat
Join Date: Oct 2004
Posts: 1,518
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Yes it's possible, transom knees can be added reasonably easily but your question really is should you, a well sorted 90 will push your 5.35 to 40kts and IMVHO that's pretty much it for the hull (mine would start to chine walk quite strongly at 40kts) there was no way I would have wanted to go quicker. The extra weight may well upset the balance of your boat rendering more of the 115 horses unusable, there's also the insurance implication of having an engine exceeding the manufacturer's spec. Finally if you'd asked which engine to fit I'm guessing the most popular reply would be a Yamaha 90 they are very highly regarded and seem to be Ribnet's engine of choice for a 5.4 rib! Might be worth investigating your troublesome one a bit more?
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21 March 2014, 21:21
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#16
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Member
Country: UK - England
Town: swanwick/hamble
Boat name: stormchaser
Make: custom rib
Length: 8m +
Engine: inboard/diesel
Join Date: Aug 2007
Posts: 3,848
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Stay with the yam 90. It's a nice little setup
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22 March 2014, 08:07
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#17
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Member
Country: UK - England
Town: River Hamble
Length: 6m +
Join Date: Oct 2005
Posts: 726
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That is a 535 and dont go any bigger than the 90 with the 115 it will handle like a dog. And you are boat 184 not 184 of 1994.
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RIB REPAIRS | RE-TUBES | RE-FIT - OUTBOARD SERVICING - ONLINE SHOP FOR RIB & TOHATSU PARTS .
Phone: 01489 556800 www.rib-shop.com
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22 March 2014, 17:33
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#18
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Member
Country: UK - Wales
Town: Holyhead
Boat name: W30
Length: 5m +
Engine: RIBTEC
Join Date: Mar 2014
Posts: 18
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Great advice and thanks very much, the marine mech who is meant to be fixing my engine cant find the problem why its not running on full power, so he sugested that I find a newer engine, I might take else where, thanks again Andy
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22 March 2014, 17:52
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#19
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Member
Country: UK - Wales
Town: Holyhead
Boat name: W30
Length: 5m +
Engine: RIBTEC
Join Date: Mar 2014
Posts: 18
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Thanks to you all for the advice,
Here is what im going to do, wait till I get back to the UK and take my boat somewhere else for a second opinion, there is another boat yard on Anglesey I can try. just want it sorted its not worked since last summer, frustrating!
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07 April 2014, 19:14
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#20
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Member
Country: UK - England
Town: Bognor Regis
Boat name: Great Bear
Make: Ribtec
Length: 6m +
Engine: 150HP HPDI
MMSI: 235104612
Join Date: Jul 2013
Posts: 110
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I have a Ribtec 655 with a 150 HPDI
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