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09-03-2005, 01:32 PM
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#1
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The Doc
Join Date: Mar 2004
Posts: 8,291
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how hard
is it to rebuild a bullet box................how costly?
if water has made it into the box on an engine, what else should one look out for on the rest of it that may be buggered?
ta in advance
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09-03-2005, 01:41 PM
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#2
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Registered User
Join Date: Mar 2004
Posts: 6,891
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You looking at yank scrap again?
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09-03-2005, 01:44 PM
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#3
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The Doc
Join Date: Mar 2004
Posts: 8,291
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nope......but i really would appreciate some help if you could assist in anyway
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09-03-2005, 01:51 PM
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#4
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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You need tools and the skill to be able to shim it correctly - There might be more those are the issues I know about!
Can get it done down this way if needs be - issues are mainly to do with how much damage has been done - the shafts rust allowing the impellor to pump out all of the oil on some shafts, bearings and gears can all fail due to water ingress - no way of knowing how much damage is done without opening it up!
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Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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09-03-2005, 01:56 PM
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#5
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The Doc
Join Date: Mar 2004
Posts: 8,291
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I know the damage, its completely fecked!!
I was wondering whether looking for another is easier/ cheaper than repairing that one AND what other stuff in the midsection may hae been effected when the box ground to a halt?
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09-03-2005, 02:04 PM
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#6
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Registered User
Join Date: Mar 2004
Posts: 6,891
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So best case, case & bearing carrier are re-usuable, worst case entire gearcase is junk?
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09-03-2005, 02:11 PM
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#7
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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If it ground to a halt it will be somewhere between very fecked and written off! contsct OCRDA who is a member here with the shaft length and what you're looking for - he may have something or some parts?
__________________
Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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09-03-2005, 02:13 PM
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#8
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The Doc
Join Date: Mar 2004
Posts: 8,291
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and other damage to engine could be?
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09-03-2005, 02:16 PM
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#9
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The Doc
Join Date: Mar 2004
Posts: 8,291
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thanks cookee
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09-03-2005, 02:28 PM
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#10
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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It depends what stopped it and how fast - but the very worst case scenario could in theory damage the crank, but I would of thought the drive shaft would go long before then, so unless there are other problems I would have thought just the box - a second and third opinion is very advisable though - there are others with a lot more experience than me around here!
__________________
Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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09-03-2005, 02:31 PM
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#11
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Registered User
Join Date: Mar 2004
Posts: 6,891
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IMHO, there's very little rotational mass in them so it's unlikely to have buggered the motah.
Quote:
Originally posted by Captain Chaos
and other damage to engine could be?
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09-03-2005, 02:36 PM
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#12
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The Doc
Join Date: Mar 2004
Posts: 8,291
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Thanks the both of ya............looks like i've got 2 motors to look at on sat........any other offers?
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09-03-2005, 02:37 PM
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#13
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Registered User
Join Date: Mar 2004
Posts: 6,891
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The man to truly ask is Mr Holmes.
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09-03-2005, 02:41 PM
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#14
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Senior Member
Country: ENGLAND
Occupation: Prime Minister
Interests: Being Rude.
Cruising area: Kings Road
Join Date: Jun 2004
Posts: 793
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What, me?
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09-03-2005, 02:44 PM
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#15
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Registered User
Join Date: Mar 2004
Posts: 6,891
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How many world championships have you won?
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10-03-2005, 11:33 AM
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#16
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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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The condition of the spline at the top of the downshaft will give a good indication of the state of the internal spline in the bottom of the crank.
There's a seal in the lower end of the crank that should keep a pocket of grease in and around the mating splines, if that's failed/fecked orf, there could be trouble in store in the form of a stripped crank spline.
Also look for the upper spline of the downshaft being 'twisted'.
I'd leave the fkkr alone, and let some one else have the aggro.
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.
"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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10-03-2005, 12:11 PM
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#17
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The Doc
Join Date: Mar 2004
Posts: 8,291
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good advice Jonny.............your other half has given the same advice.
thanks very much all, I felt i sorta had to ask anyway.
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10-03-2005, 12:34 PM
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#18
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Senior Member
Country: ENGLAND
Occupation: Prime Minister
Interests: Being Rude.
Cruising area: Kings Road
Join Date: Jun 2004
Posts: 793
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Quote:
Originally posted by Matt
How many world championships have you won?
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I didnt say id won any championships!
However, My name is Mr. Holmes.
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10-03-2005, 12:57 PM
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#19
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Registered User
Country: UK
Location: Somerset
Occupation: old bloke
Interests: Water Ski Racing, Basic Racing
Boat name: Bad Boy 717, Hotshot 777
Boat make: Phantom 21, Phantom 21
Engines: JSRE Merc 2.5 EFIss 280hp, Merc 2.5 x 2
Cruising area: Weymouth, Weston and rest of UK
Join Date: Mar 2004
Location: Somerset
Posts: 529
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John or neil?????
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10-03-2005, 01:07 PM
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#20
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Registered User
Country: Job Centre
Location: In a box
Occupation: Chaos's gofer
Interests: Skiving
Boat make: Spectre 30
Engines: 2 x Promax 225
Cruising area: In the bath
Join Date: Mar 2004
Location: In a box
Posts: 5,201
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or Sherlock!
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