Gearbox cooling overhaul SL2A-E

Started by blue-max, January 02 2026, 22:40

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blue-max

My gearbox has a simple water cooled manifold connected to  the sea water inlet before the strainer. Its mostly copper pipes with flanges. There has been some corrosion and there is now a leak which  persists after patching. Obviously it needs a proper repair/rebuild. Not had any  success in finding parts. Has anyone had experience of repairing this component?

Happysailor

From your last post I noticed you are not in a convenient place to have them re-made by an engineering company.. usually they would reuse the flanges and renew the piping. If the leak is in a straight piece, you might consider a DIY soldering solution, by cutting the bad piece out and use sleeves and replacement material to solder a new piece in, in situ or properly marked making sure the flanges line up again. "Only" things to source would be pipe material, sleeves and hard soldering..

Yngmar

Can you fit a generic oil cooler from another make?
formerly Songbird - Bavaria 40 Ocean (2001) -- now gone farming

blue-max

I a thinking - if I cant patch  the fitting again I could just re route  sea water cooling pipe straight to  the engine strainer and leave the gearbox without water cooling. I wonder how effective it is when its working properly