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Old 06 February 2014, 02:04   #1
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converting to diesel

Volvo Penta 5.7 litreV8 inboard petrol engine with duo prop drive


possible boat purchase with this set up

what can I bolt pretty much straight in there diesel wise?


or do I need to change leg also?
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Old 06 February 2014, 02:40   #2
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Volvo Penta 5.7 litreV8 inboard petrol engine with duo prop drive possible boat purchase with this set up what can I bolt pretty much straight in there diesel wise? or do I need to change leg also?
Diesel & petrol engines have different rpm's @ WOT and therefore different ratios in the gearbox .
With an Diesel engine on the existing leg you will not achieve speed due to missing rpm's and the diesel motor would not work in the economical range .
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Old 06 February 2014, 02:41   #3
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be a tight squeeze but how about a BMC diesel, sure there'll be one knocking about in a old landrover somewhere
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Old 06 February 2014, 03:29   #4
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You might get away with it, depended on horse power, torque, prop size.
Dervs have more torque and can swing bigger props, you could jiggle the props with horsepower, might do it
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Old 06 February 2014, 04:23   #5
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Used Volvo AD41 200hp would go in if engine bay has enough length.

Look at the V8 diesels sold by MDS at Hamble Point - although expensive and usually go on Mercruiser drives.

Or GM 6.2 V8 diesel:
help with a petrol to diesel engine convertion

No easy or cheap options.
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Old 06 February 2014, 04:37   #6
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Volvo and Mercruiser both use the same block units in a lot of there car/ truck marine conversions, a lot of the bits are interchangeable
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Old 06 February 2014, 04:38   #7
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Vw perhaps ?
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Old 06 February 2014, 05:08   #8
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Oh well just put an offer on it , could not resist



Will ponder over changing it if I find it mega thirsty,
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Old 06 February 2014, 09:22   #9
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What boat is it?
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Old 06 February 2014, 10:31   #10
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Quote:
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What boat is it?
Proline walk around
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