Converting Bukh from direct to indirect cooling.

chasroberts

chasroberts

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I am looking into the possibility of converting my Bukh 36 from direct to indirect cooling in order to fit a calorifier. Has anybody any experience of this and can provide leads etc on where to start.

As always, all thoughts and advice are appreciated.

Chas
 
I saw a thread on here a few weeks ago explaining that you don't need to convert. A search may save you money.
Allan
 
If thats the only reason I do'nt think you have to:-

If the 36 is the same as the 20 !,- with a couple of fittings and a small electric pump and some pipe you can easily connect a calorifier into the sea water cooling system (via the manifold and block drain plug). Call Bukh UK (after SIBS) and I am sure they will be happy to sell you the kit.

Howard
 
Yes did this on my Bukh 20 earlier this year. The kit from Bukh UK is the pump & take off (suitably restricted) & return connectors for the engine designed to fit on the upper & lower drain plugs. Cost approx £120. All you really need to add on the engine heating side is suitable heater hose, clips and poss a switch for the pump. Pretty straightforward fitting instructions & in actuality. Al Pearson at Bukh v helpful- my main prob is getting the original drain plug off the exhaust manifold! Rest was quite OK & I am pretty much a DIY duffer. Jerryat of this parish has been there before & was equally helpful /forums/images/graemlins/smile.gif
 
Completely agree with SecondAffaire. Quick the Italian company make an all stainless steel calorifier if you are worried about corrosion. I wired the circulation pump to the ignition circuit (one less thing to forget). The trick is to mount the pump as low as possible. Don't believe those who say the water will not get very hot with a raw water cooling. 15 mins motoring and our 25 litre tank is piping hot.
 
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