Mercruiser Distributor Sensor Failure

Make sure the other end of the tester is attached to a good clean ground.

Mercruiser distributor sensor failure.

Ignition sensor kit 18 5116 1 ignition pick ups replacement for mercruiser thunderbolt distributor on 4 3l 5 0l 5 7l 7 4l 8 2l engine 87 91019a2 87 91019a6 87 892150q02 87 861780q4 47 99 47. If you own a late model mercruiser engine in your boat you re almost guaranteed to run into one of these common problems. If you have no spark there are several things which can be at fault. We are all experiencing similar problems.

Crank the engine and check for spark. My mechanic has been buying his parts from kellogg wholesale marine in ct. Remove the white green lead from the dist. Remove the main coil lead from the center of the distributor cap and install the spark tester.

Find distributor assemblies components including module sensors pick up coils pole pieces for your mercruiser stern drive using the application chart from the mercury quicksilver catalog. If there is spark replace the ignition sensor in the dist. There are 2 other boats at my marina with similar engines that were tuned up at the same time. I have a 3rd cap now with the same problems.

Mercruiser volvo penta omc distributor kit. If 12 volts is present remove the coil spark wire from the distributor and connect it to a spark gap tester to ground.