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Aug 09, 2012 10:38 am
Aug 09, 2012 10:38 am
Subject: Re: 1937 LG45 dhc for sale
Hi Peter, a bit off topic, but the V12 impeller is bronze, so won't corrode. A far more likely culprit is the water pump body, made from pretty poor quality aluminium, so prone to heavy corrosion given the slightest opportunity...an obvious example is the water jacket plates.
A high speed run, especially on a hot day, will generate a lot of heat, which the cooling system will cope with (perhaps only just!). Coming to a halt fairly abruptly leaves a lot of latent heat in the engine, with suddenly only a trickle of water from the pump, now only idling...and of course, only the fan to provide airflow through the radiator...again only idling.
Cheers
Laurence
Hi Peter, a bit off topic, but the V12 impeller is bronze, so won't corrode. A far more likely culprit is the water pump body, made from pretty poor quality aluminium, so prone to heavy corrosion given the slightest opportunity...an obvious example is the water jacket plates.
A high speed run, especially on a hot day, will generate a lot of heat, which the cooling system will cope with (perhaps only just!). Coming to a halt fairly abruptly leaves a lot of latent heat in the engine, with suddenly only a trickle of water from the pump, now only idling...and of course, only the fan to provide airflow through the radiator...again only idling.
Cheers
Laurence