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Jul 23, 2011 3:31 pm
Jul 23, 2011 3:31 pm
Subject: M45 Cooling Improvments
Barry asked about M45 cooling improvements and I hope others will post their comments as well.
Here is my contribution. The Meadows engine shares typical 1920's practice by having alloy castings which transfer water between block and head. Circulation is not particularly good, and the LG 45s had an additional water transfer casting at the back of the head. To add this feature to my M45 I made my own rear transfer connector out of 1/2 in pipe. I removed one of the screwed core plugs at the back of the block and used a Tee pipe adaptor so that I could also take another pipe into back of the aluminium water rail. This allows cold water to circulate directly round to the back of the block. I have seen a further improvement where the screwed core plug at the front of the block is similarly used to connect a pipe to the front of the water rail.
Any other comments folks?
Colin
Barry asked about M45 cooling improvements and I hope others will post their comments as well.
Here is my contribution. The Meadows engine shares typical 1920's practice by having alloy castings which transfer water between block and head. Circulation is not particularly good, and the LG 45s had an additional water transfer casting at the back of the head. To add this feature to my M45 I made my own rear transfer connector out of 1/2 in pipe. I removed one of the screwed core plugs at the back of the block and used a Tee pipe adaptor so that I could also take another pipe into back of the aluminium water rail. This allows cold water to circulate directly round to the back of the block. I have seen a further improvement where the screwed core plug at the front of the block is similarly used to connect a pipe to the front of the water rail.
Any other comments folks?
Colin