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Aug 19, 2016 8:03 am
Aug 19, 2016 8:03 am
Subject: Re: M45 Cooling Improvments
Just to resurrect this thread about cooling on the 4.5 engine. I had an interesting conversation at VSCC Prescott 2 weeks ago about the cooling on a Pre War 6 cylinder BMW/Bristol engine. The owner was an engineer who worked at the time for an Formula 1 team. He was not satisfied with the cooling on this engine and as he worked in F1 he had access to all the proper equipment to test flow, cooling etc properly. He told me that he ascertained that the cooling was inadequate and (just like the 6 cylinder Meadows 4.5) there was insufficient cooling to number 6 cylinder - even though this was not apparent on the normal dash mounted temperature gauge. His solution was to put all the cooling water from the water pump to the back of the head . Thus all the cooling flow went from the back of the head to the front and then into the radiator.
This does not of course mean that this is the ideal solution for all 4.5 litre cooling issues (although it worked for me - see earlier post) but it would be interesting if someone who has the knowledge, time and equipment checked whether this alternative type of cooling system is in fact a proper long term solution.
Those of you with spare socks can however rest assured as a sock (or filter) would, however, (for other reasons) still be required in the top of the radiator !
Food for thought !
Just to resurrect this thread about cooling on the 4.5 engine. I had an interesting conversation at VSCC Prescott 2 weeks ago about the cooling on a Pre War 6 cylinder BMW/Bristol engine. The owner was an engineer who worked at the time for an Formula 1 team. He was not satisfied with the cooling on this engine and as he worked in F1 he had access to all the proper equipment to test flow, cooling etc properly. He told me that he ascertained that the cooling was inadequate and (just like the 6 cylinder Meadows 4.5) there was insufficient cooling to number 6 cylinder - even though this was not apparent on the normal dash mounted temperature gauge. His solution was to put all the cooling water from the water pump to the back of the head . Thus all the cooling flow went from the back of the head to the front and then into the radiator.
This does not of course mean that this is the ideal solution for all 4.5 litre cooling issues (although it worked for me - see earlier post) but it would be interesting if someone who has the knowledge, time and equipment checked whether this alternative type of cooling system is in fact a proper long term solution.
Those of you with spare socks can however rest assured as a sock (or filter) would, however, (for other reasons) still be required in the top of the radiator !
Food for thought !