Spark-Compression check

We see a lot of used motors come in and out of Van's Sport Center, but not all used motors can be re-sold. In order to decide whether or not a motor still has life in it, we do a spark-compression test. Spark-compression measures the pounds per square inch (psi) of pressure that the pistons create when we crank the engine. Each motor has different criteria that helps distinguish whether its psi reading is a good or a bad one. Factored into the decision is the motor's year, horse power, and whether it is a two stroke or four stroke. If a motor seems to still have value, we do the needed repairs. If not, it is gutted out for parts. 

TLC and repairs
We make sure to fix all the problem areas a motor might have before putting it back on our shelves to be sold. Many different areas on a motor could need repairs, but the carburetor and lower unit are common areas that usually need a little TLC. Carburetors often need to be re-built or cleaned out and lower units often have leaks that should not be ignored. Fixing a lower unit can point to other issues that might be stopping the motor from running at its best. Often when we are doing repairs, we are also focusing on maintenance: preventative acts that will put a stop to further damage. For example on a lower unit we fix the leak, but we will also try to be proactive in preventing the leak from coming back by checking internal places like seals, bearings, or gears that could have gotten a lot of wear and tear from previous use. Along with the engine, we analyze the propeller on the motors. We fix them up as needed and props from 40hp or higher motors get re-built if necessary. 

Test-run and clean up
Test-running our refurbished motors is not only vital for checking the already completed repairs, but it also helps make sure there aren't any areas that slipped through the cracks. With other problem areas taken care of, new ones could come into clearer sight. We test-run our used motors until we see the motor running in its best condition. Once the internal parts of the engine are loooking like they should, we work on making the external parts match. We clean, wax, paint--whatever is necessary to clea up the repaired motors. It's most important for the engine to run smoothly, but it can't hurt to have it looking pretty, either.  

After we've done all that we need to, the motor goes on the shelves and often isn't there for long! For any questions on our current stock of used motors visit our website inventory or give our sales manager, Drew, a call at (616)-364-0666.