Perkins 4107 – water pumps

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August 15, 2012 at 08:17 #6131
Ronar M
Ronar M
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Hi All

After having had no problems with the cooling system, Ronar M suddenly started to lose water a few weeks ago. I was able to keep going for the rest of my trip by sailing as much as possible and topping up the header tank regularly so avoiding overheating. My crew, who, I’m sure, had thought me fussy now saw the point of my insistence on regular engine checks and of keeping a frequent eye on the temperature gauge. Anyway it turned out that both the fresh water and salt water pumps had decided enough was enough and were leaking (seals and bearings having given up the ghost). There was no problem in finding a replacement salt water pump – Jabsco could oblige – though as it is all bronze it was not cheap. However the fresh water pump, which bolts directly onto the front of the engine, was more problematic. The genuine Perkins spare was £40 more than an alternative but the casting of this cheaper pump was just a few fractions of an inch too big and fouled the timing cover. An angle grinder soon removed the excess without weakening the pump body. All good as new now. Trevor

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