a bit OT - car engines in boats.
in [Aussie Drivers]
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From: Jason James on 23 Feb 2007 05:25 "D Walford" <walford(a)iprimus.com.au> wrote in message news:45de7304$0$500$61c65585(a)uq-127creek-reader-03.brisbane.pipenetworks.com.au... > wonder about it being cost effective. > The cost of purchasing and marinising two late model 4cyl TD's may not > be a hell of a lot cheaper than buying engines made for the job. > Have you shopped around for engine prices? > It may be possible to reuse your existing heat exchangers etc and if you > can do that then it may be cheaper to use car/truck engines. Remember the stern-drive Valiant Hemi combo photos, used in advertising by I think, the stern-drive company involved (Volvo?), back in the '70s? If it has been done before, it can be done again. Jason
From: D Walford on 23 Feb 2007 05:41 bugalugs wrote: > I'd be very wary of gas. Any leaking into an enclosed space could build > up concentration levels to produce a mighty BOOM Thats the exact same reason I wouldn't have an inboard petrol engine in a boat, petrol is no safer than gas. Diesel is the only thing to use in that application. Daryl
From: Kev on 23 Feb 2007 09:26 jackbadger56 wrote: > At some stage in the next few years we're going to have to re-power > our boat as the twin SD33's are pretty tired. I was thinking (just > thinking!) that fitting modern twin 4cyl turbo-diesels would be worth > exploring. We've yet to get quotes on the Nissans but I'm sure it will > cost a fortune simply because it's for a marine application (diesel > fuel at all the marinas in Pittwater charge about $1.70 per litre, to > give you an idea of what they can get away with). If we were to use a > heat-exchanger set-up rather than pumping seawater through them, would > you really need to do a great deal of modification for marine use? The > 'engine room' (wow, that sounds grand!) is pretty well sealed and > there is heaps of room, so maybe any computers etc can be located well > out of harms way. Two of the marine mechanics I've put this to seem to > think it should be OK in theory, but had never put any thought into > it, as they had never been asked. They weren't keen on the idea > basically, but couldn't really give me a reason why. Has anyone here > had experience in fitting stock car engines into boats? If so, do you > think this is feasible? > > BTW I've looked for an 'Aus.Boats' to ask this, but am also interested > in what 'car-heads' think of this idea. Traditional boaties are just > too blinded by......well........tradition, and would be horrified at the > thought of doing this to a 60yo Halvorsen (despite the fact that it > currently has Nissan truck motors, which in turn replaced a pair of > Holden sixes!) > this would be no harder than what has been done previously to your boat and you can make a water intercooler as well biggest expense would probably be the custom made stainless water cooled exhaust Kev
From: eeviil inc. on 24 Feb 2007 09:35 Jason James wrote: > "D Walford" <walford(a)iprimus.com.au> wrote in message > news:45de7304$0$500$61c65585(a)uq-127creek-reader-03.brisbane.pipenetworks.com.au... > >>wonder about it being cost effective. >>The cost of purchasing and marinising two late model 4cyl TD's may not >>be a hell of a lot cheaper than buying engines made for the job. >>Have you shopped around for engine prices? >>It may be possible to reuse your existing heat exchangers etc and if you >>can do that then it may be cheaper to use car/truck engines. > > > Remember the stern-drive Valiant Hemi combo photos, used in advertising by I > think, the stern-drive company involved (Volvo?), back in the '70s? If it > has been done before, it can be done again. > > Jason > > Volvo Penta and Mercury Marine both use both small and big block chevy engines as a base, obviously modified for marine use. And they have for many years. So it wouldn't surprise me a bit if it was in fact a Volvo ad. Nice way to repower a 2 series Volvo, with genuine Volvo V8 motivation :D Getting OT I remember when I was quite young, a relative gave an old yacht a new lease on life. Had a very old Perkins 4cyl diesel, and a single speed slushbox. Turned out the bolt pattern on the Perkins was identical to a Holden 6. I still wished I remembered more about the box, as I still find it unusual. It appears it was a marine box, and the gear selector had forward, neutral and reverse. Adam
From: JD on 24 Feb 2007 14:29
eeviil inc. wrote: > Jason James wrote: >> "D Walford" <walford(a)iprimus.com.au> wrote in message >> news:45de7304$0$500$61c65585(a)uq-127creek-reader-03.brisbane.pipenetworks.com.au... >> >>>wonder about it being cost effective. >>>The cost of purchasing and marinising two late model 4cyl TD's may not >>>be a hell of a lot cheaper than buying engines made for the job. >>>Have you shopped around for engine prices? >>>It may be possible to reuse your existing heat exchangers etc and if you >>>can do that then it may be cheaper to use car/truck engines. >> >> >> Remember the stern-drive Valiant Hemi combo photos, used in advertising >> by I >> think, the stern-drive company involved (Volvo?), back in the '70s? If >> it has been done before, it can be done again. >> >> Jason >> >> > Volvo Penta and Mercury Marine both use both small and big block chevy > engines as a base, obviously modified for marine use. And they have for > many years. So it wouldn't surprise me a bit if it was in fact a Volvo ad. > > Nice way to repower a 2 series Volvo, with genuine Volvo V8 motivation :D > > Getting OT I remember when I was quite young, a relative gave an old > yacht a new lease on life. Had a very old Perkins 4cyl diesel, and a > single speed slushbox. Turned out the bolt pattern on the Perkins was > identical to a Holden 6. I still wished I remembered more about the box, > as I still find it unusual. It appears it was a marine box, and the gear > selector had forward, neutral and reverse. > > Adam had one of those myself forty years ago, except it was a three cylinder Perkins. Box was a standard marine one, as you say, forward, neutral, reverse by a small lever that actuated the hydraulic application of epicyclic gears, giving a 2:1 reduction both forward and reverse. Probably not very accurate to call it a slushbox as there was no torque converter. Can't remember the brand of gearbox. Most marine applications need a reduction gear for the propeller. JD |