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1.
First try to establish just how much power you need in order to obtain the performance you require from the boat that you wish to power, either by asking the original boatbuilder or contacting a propeller manufacturer.
2. Look for engines of suitable power that also appear in this website, and avoid non-listed engines, as you may find marinisation parts for them practically unobtainable.
3. Try to obtain
engines that are still in good running order, either from crashed vehicles, or from M.O.T. failures. Don't buy an engine that is not in running order, as it is often more expensive to repair a worn-out motor than to buy a brand new one.
4. Always ask to see the engine run before buying it. Watch for white or blue smoke from the exhaust, fumes blowing out of the oil filler, and
listen for knocks, especially on the over-run as you blip it, and at idle. These are all portents of potential disaster. Look at the oil on the dip-stick and if it is very black and sludgy, the piston rings may be badly worn.
5.
Before stripping any parts, give the engine a good scrub with Jizer and hose it off. This makes the job much more pleasant. Then remove external automotive parts that will not be re-used, and drain the engine oil.
6. Lay the engine on its side, or stand it on end on its flywheel, taking care that it will not fall over, and remove the sump.
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Examine the residue in the sump for metal particles, and odd parts that
may have fallen off. If you find anything like this, start worrying ...
7. Remove bearing caps and examine bearings and journals, push feeler gauges up between the piston skirt and the bore to measure
the wear, and examine
all the lobes of the camshaft. If you find any serious damage or wear at this stage, reject the engine and ask your supplier for a better one, as it is a lot cheaper to start on another one than to try to repair serious faults.
8. Reassemble the engine, do normal service checks, and fit the marinisation parts, gearbox, mountings, etc. If you have any problems in this respect, then phone Lancing Marine for advice.
9.
Prior to installation in the boat, fill up with water and lubricants, connect up a fuel supply, battery cables, and fit on
your exhaust hose, and silencer if you have one, so that it dumps into a clean tank. Fill the tank with water and connect a hose from the tank to the water pump pick-up.
10.Make sure the engine
cannot fall over, and fire it up. Check oil pressure as soon as it starts and run it for long enough to get well
warmed up, checking for leaks and unusual noises, and re- checking the oil pressure. Take time over testing, as it is much easier to correct faults whilst the engine is out of the boat, than it is once it has been installed.
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