trattles03
New member
I received a free boat and have been trying to get the engine to turn over. I jumped the safety switches and I am using a heavy gauge wire to jump the starter solenoid. I have jumper cables from a new battery connected to the leads on the boat where the battery would go.
1998 Johnson 150 Ocean Runner V6 cranks very slowly despite new starter, new OEM Bendix, new 810 CCA battery, and good solenoid. Lower unit removed with no change. Compression is 80–85 psi on all six cylinders. Engine turns over by hand with spark plugs removed and no hard spots, but the flywheel has noticeable drag and does not coast. Starter receives approximately 12.5V while cranking. Spark is consistent with all plugs removed but becomes intermittent with plugs installed due to low cranking speed. Bendix engages the flywheel normally.
What could cause excessive flywheel drag or abnormally slow cranking after the starter system has been ruled out? I thought just maybe it could be something in the lower unit catching, but that has been ruled out now.
Is this engine worth trying to revive?
Side note, negative side of the jumper cable (connected to the boat negative cable) got so hot it welded itself. I attributed to jumping the solenoid, but could be wrong.
Any help would be much appreciated
1998 Johnson 150 Ocean Runner V6 cranks very slowly despite new starter, new OEM Bendix, new 810 CCA battery, and good solenoid. Lower unit removed with no change. Compression is 80–85 psi on all six cylinders. Engine turns over by hand with spark plugs removed and no hard spots, but the flywheel has noticeable drag and does not coast. Starter receives approximately 12.5V while cranking. Spark is consistent with all plugs removed but becomes intermittent with plugs installed due to low cranking speed. Bendix engages the flywheel normally.
What could cause excessive flywheel drag or abnormally slow cranking after the starter system has been ruled out? I thought just maybe it could be something in the lower unit catching, but that has been ruled out now.
Is this engine worth trying to revive?
Side note, negative side of the jumper cable (connected to the boat negative cable) got so hot it welded itself. I attributed to jumping the solenoid, but could be wrong.
Any help would be much appreciated