minquiers
New member
does anybody know of a kit or similar for changing from saltwater cooling to freshwater cooling for a volvo md3b,
freshwater cooling for volvo md3b
- Thread starter minquiers
- Start date
vyv_cox
Well-known member
I can't answer your question, but I can ask you another - why do you want to do it? I know for a fact that a well-known and much maligned yacht charter company operating out of Port Solent converted many of their fresh-water cooled Volvos to raw water cooling, due to the unreliability of the fresh water equipment. Admittedly this was partly due to the custom of many of their punters attempting maintenance on the units, for reasons unknown. However, the advice of my son, who did much of the work, was never to own a fresh-water cooled Volvo.
ChrisP
Member
talk to Lancing Marine they supply cooling conversions for all types of engines.
G
Guest
Guest
Vyv
Don't understand the problem - what's to maintain??
Glycol/water cooling medium circulates through a heat exchanger instead of a radiator.
As long as the heat exchanger is tucked out of the way (so that it doesn't get damaged) and protected against external corrosion what's the problem?
No inlet strainer to block - no hot and corrosive seawater to rot away the pump impeller and the engine block - a dry exhaust that can be silenced as effectively as a car.
Best regards
)
Ian D
Don't understand the problem - what's to maintain??
Glycol/water cooling medium circulates through a heat exchanger instead of a radiator.
As long as the heat exchanger is tucked out of the way (so that it doesn't get damaged) and protected against external corrosion what's the problem?
No inlet strainer to block - no hot and corrosive seawater to rot away the pump impeller and the engine block - a dry exhaust that can be silenced as effectively as a car.
Best regards
)Ian D
vyv_cox
Well-known member
This is second-hand info, of course, but as I remember from discussions with my son the main problem was the made-up pipework that slots together using small rubber seals. These seemed very unreliable and became dislodged easily. The standard fresh water pump will only take these fittings, as will the heat exchanger, so it is not possible to throw the fittings away and replace them with hoses. The fittings are definitely of the one-time-only variety, and no amount of sealant will make them seal for a second time.
I can't say whether I am discussing the same engine model, I know very little about Volvos, but this happened within the past 8 years or so.
I can't say whether I am discussing the same engine model, I know very little about Volvos, but this happened within the past 8 years or so.
ArthurWood
New member
If you are doing this to avoid corrosion and the boat has already been run in salt water, there is no point. The corrosion has begun.
