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31-07-2005, 12:52 PM
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#1
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Registered User
Country: Essex
Location: Great Stambridge Essex
Occupation: Director Paving company
Interests: Boating/Squash
Cruising area: Essex Marina/crouch southeast coast
Join Date: Sep 2004
Location: Great Stambridge Essex
Posts: 2,033
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Has anyone ever snapped there-
cavitation plate on the gearbox i have re rigged my boat with great success and achived 74mph but when i was putting the prop bag on i noticed the cavitation plate has snapped off the rest of the box .
What could have caused this i havent hit anything all i can think is it must have had a small crack before.
Looking at it i might beable to be welded.
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31-07-2005, 01:18 PM
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#2
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Registered User
Country: England
Location: Birmingham
Occupation: Scratching
Interests: Big Dinners
Boat name: Never Enough
Boat make: Seaquel 600xs
Engines: 225hp Merc ProMax
Cruising area: Anywhere! I prefer Weymouth
Join Date: May 2005
Location: Birmingham
Posts: 3,232
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I saw an advert on boatsandoutboards.co.uk for a company that does gear case repairs. Have a troll over the site and see if you can find it taz.
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I got jumper cables!
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01-08-2005, 07:28 AM
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#3
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Registered User
Country: Essex
Location: Great Stambridge Essex
Occupation: Director Paving company
Interests: Boating/Squash
Cruising area: Essex Marina/crouch southeast coast
Join Date: Sep 2004
Location: Great Stambridge Essex
Posts: 2,033
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01-08-2005, 07:57 AM
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#4
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Traveling
Country: UK
Location: Alderholt
Occupation: Aerospace
Boat name: T/T D2S
Boat make: Midas 27' Cat, Argo 16 Cat. Avon Rib Thingy
Engines: Merc 280-ROS -JSRE,65Xs, 75 Stinger, Yam 60
Cruising area: Any Seedy Bar
Join Date: Sep 2004
Location: Alderholt
Posts: 4,225
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Yes but the one I had, was a debris break, prop picked up something and wacked into the cav plate took out a bloody great chunk, LH side (port) weld repair was ok. Funnny thing the prop was un marked just a slight scratch on one blade, even had it checked after pitch & balance was good.
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01-08-2005, 08:26 AM
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#5
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numbskull
Country: United Kingdom
Location: South
Occupation: none
Interests: none
Boat name: Leviathan
Boat make: Phantom 28
Cruising area: South Coast
Join Date: Mar 2004
Location: South
Posts: 15,959
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That looks to me like it didn't have all the fasteners in place!
have you been running with ANY of the 6 nuts missing?
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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01-08-2005, 08:57 PM
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#6
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Registered User
Country: Essex
Location: Great Stambridge Essex
Occupation: Director Paving company
Interests: Boating/Squash
Cruising area: Essex Marina/crouch southeast coast
Join Date: Sep 2004
Location: Great Stambridge Essex
Posts: 2,033
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Quote:
Originally posted by Jon Fuller
That looks to me like it didn't have all the fasteners in place!
have you been running with ANY of the 6 nuts missing?
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Jon on removal i found there to be one bolt missing in the centre. Do you think this has caused it were the bolt is missing the stud has cracked the casing in the leg looks like a difficult job to repair
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01-08-2005, 09:09 PM
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#7
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Traveling
Country: UK
Location: Alderholt
Occupation: Aerospace
Boat name: T/T D2S
Boat make: Midas 27' Cat, Argo 16 Cat. Avon Rib Thingy
Engines: Merc 280-ROS -JSRE,65Xs, 75 Stinger, Yam 60
Cruising area: Any Seedy Bar
Join Date: Sep 2004
Location: Alderholt
Posts: 4,225
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Had something about this on scream & fly. There were a few people with cracks in the casing. The feed back was it was alright to leave out the ctr bolt but not the aft. Have a search of there forum
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It is impossible to lick your elbow.
Team25Racing.com
At least 75% of people who read this will try to lick their elbow!
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01-08-2005, 09:24 PM
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#8
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Registered User
Country: Essex
Location: Great Stambridge Essex
Occupation: Director Paving company
Interests: Boating/Squash
Cruising area: Essex Marina/crouch southeast coast
Join Date: Sep 2004
Location: Great Stambridge Essex
Posts: 2,033
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Quote:
Originally posted by BluFin
Had something about this on scream & fly. There were a few people with cracks in the casing. The feed back was it was alright to leave out the ctr bolt but not the aft. Have a search of there forum
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Will do
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01-08-2005, 10:55 PM
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#9
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hello
Join Date: Mar 2004
Posts: 2,739
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I had all the bolts come loose on mine once. When I took the boat out of the water there was a gap of about 5mm between the bottom of the leg and the top of the box and it wobbled about like a good one. It was a properly mirror flat day and I had just been running it jacked right up and trimmed right out Didn't hurt it though!!! Lucky I guess!!!
Thats cus it was all freshly painted, leg and box. In my experience things tend to come loose first time out when you've freshly painted em.
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01-08-2005, 10:58 PM
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#10
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numbskull
Country: United Kingdom
Location: South
Occupation: none
Interests: none
Boat name: Leviathan
Boat make: Phantom 28
Cruising area: South Coast
Join Date: Mar 2004
Location: South
Posts: 15,959
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Quote:
Originally posted by Johnny Boat Dude
IThats cus it was all freshly painted, leg and box. In my experience things tend to come loose first time out when you've freshly painted em.
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yeah right, nowt to do wiv da 16th hand nylocs!!!
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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01-08-2005, 11:00 PM
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#11
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hello
Join Date: Mar 2004
Posts: 2,739
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Nope cus there still on there and it hasn't come loose in 2 years. So feck off
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02-08-2005, 08:44 AM
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#12
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numbskull
Country: United Kingdom
Location: South
Occupation: none
Interests: none
Boat name: Leviathan
Boat make: Phantom 28
Cruising area: South Coast
Join Date: Mar 2004
Location: South
Posts: 15,959
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so the paint musta been 5mm thick then!
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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02-08-2005, 08:52 AM
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#13
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Traveling
Country: UK
Location: Alderholt
Occupation: Aerospace
Boat name: T/T D2S
Boat make: Midas 27' Cat, Argo 16 Cat. Avon Rib Thingy
Engines: Merc 280-ROS -JSRE,65Xs, 75 Stinger, Yam 60
Cruising area: Any Seedy Bar
Join Date: Sep 2004
Location: Alderholt
Posts: 4,225
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__________________
It is impossible to lick your elbow.
Team25Racing.com
At least 75% of people who read this will try to lick their elbow!
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02-08-2005, 12:36 PM
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#14
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Registered User
Country: England
Location: Surrey
Occupation: Subsea Design Engineer
Boat name: The Mutz Nuts/Beyond Obsession/HoneyRider
Boat make: Phantom 20, Phantom 25, Cigarette 39 TopGun Unlimited
Engines: Mercury Promax 300 Madefi, Twin Mercury 200XS, Twin Merc Racing 525 EFI's
Cruising area: Eastney/Portsmouth
Join Date: Feb 2005
Location: Surrey
Posts: 757
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Taz what prop was u using to achive 74?
why dont you just get a new second hand gearbox casing insted of the whole thing much cheaper also that 1 blufin posted a link of is only a 15"shaft so you will need to replace the shaft either way
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02-08-2005, 01:28 PM
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#15
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hello
Join Date: Mar 2004
Posts: 2,739
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Quote:
Originally posted by Jon Fuller
so the paint musta been 5mm thick then!
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Not 5mm but it probably was quite thick on the bottom edges of the leg.
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02-08-2005, 01:54 PM
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#16
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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
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Quote:
Originally posted by BluFin
Yes but the one I had, was a debris break, prop picked up something and wacked into the cav plate took out a bloody great chunk, LH side (port) weld repair was ok. Funnny thing the prop was un marked just a slight scratch on one blade, even had it checked after pitch & balance was good.
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That was my initial theory too! - Nightmare there is so much junk floating around I hit a half a fishing rod whilst on the donut the other day!
My friend whilst chartering his father’s brand new sunseeker across the channel hit a shipping container at 38 knots! Its was floating about 1 foot under the surface ripped most of the bottom off the sunseeker and had to be rescued by the navy. Now that is scary his dad broke down into tears when he phoned him to tell him what had happened!
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Loving the Spitfire with a 25HP Mercury
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02-08-2005, 04:39 PM
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#17
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Registered User
Country: Essex
Location: Great Stambridge Essex
Occupation: Director Paving company
Interests: Boating/Squash
Cruising area: Essex Marina/crouch southeast coast
Join Date: Sep 2004
Location: Great Stambridge Essex
Posts: 2,033
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Quote:
Originally posted by TheMutzNuts
Taz what prop was u using to achive 74?
why dont you just get a new second hand gearbox casing insted of the whole thing much cheaper also that 1 blufin posted a link of is only a 15"shaft so you will need to replace the shaft either way
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Dude i think it was the prop i got off you the chopper 22 pitch
I could have gone more but i bttled out!!
Im going to get it welded and see how it goes. Maybe get the box welded to the leg!!
Cheers all
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02-08-2005, 06:40 PM
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#18
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Registered User
Country: England
Location: Surrey
Occupation: Subsea Design Engineer
Boat name: The Mutz Nuts/Beyond Obsession/HoneyRider
Boat make: Phantom 20, Phantom 25, Cigarette 39 TopGun Unlimited
Engines: Mercury Promax 300 Madefi, Twin Mercury 200XS, Twin Merc Racing 525 EFI's
Cruising area: Eastney/Portsmouth
Join Date: Feb 2005
Location: Surrey
Posts: 757
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Quote:
Originally posted by Taz
Im going to get it welded and see how it goes. Maybe get the box welded to the leg!!
Cheers all
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then you will break the saddle!
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