Quote:
Originally Posted by Couleestalker
Should we run the motor or is there risk of wrecking the pump.
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A lot of the time the motor is worth as much as the boat especially when buying used. The motor is what usually cost the most to maintain so I would spend more time checking it than the boat. At a minimum here's what I do.
Check the overall condition of the boat first and pay attention to the transom. Look for any rot or larger stress cracks from the motor. Check the operation of the steering, controls, radio, electrical, etc.
If you start the motor out of water there is a very good chance that you will damage the impeller (water pump). Invest in a set of those muffs that you put over the water intake and attach a hose to. They are cheap, easy to use and handy to have.
Buy a compression test kit at Can Tire while you are getting your muffs. Find out what the compression for the motor should be and compare it to what the motor has. If one or both cylinders are below the acceptable level for the motor this would indicate that engine work is required. You can expect the compression to be a little lower on older motors but it's not a good sign if one cylinder is a lot lower than the other.
Check the condition of the oil in the lower leg by unscrewing the lower screw. Milky oil indicates a leak somewhere. Bringing a litre or two of lower leg oil might be an idea so you can fill it if required or change it if it's milky. Recheck after you you've run the motor to see if it has turned milky again. If so, it would indicate that the leak is internal and not at the screws.
Start the motor up with the muffs/water on and see how it runs. Look for a steady stream of water coming out from the water pump. Replacing an impeller is not a big deal but if it's not pumping steady it's gotta be done. Might help in negotiations.