Mercruiser Ticking Noise

Looking for help to identify and resolve a tapping noise coming from the rear of the engine. Just bought the boat.

Mercruiser 3 0 Noise By Carlos Arrieta

A small leak on the exhaust manifold can often be mistaken for an engine tick.

Mercruiser ticking noise. Engine has 228 hrs. Dont run the engine too long as. Sorry for my ginglish Oliver.

Since beginning of season this ticking noise started coming to the engineI dont know what it is and I havent got a clue how to fix it. 30 GM Mercruiser Outdrive Engine Noise. One in addition a knocking sound on the 30 Merc could also be caused by the alternator.

I would have raised a high roller bed on that this was comming from the valve train but it wasnt. My guess is its now around 4 BTDC. Only happens at idle after warmed up.

I have a 2003 50 MPI Mercruiser that has a steady ticking noise at idle speed and incrases as the engine rpms increase. Could be a lifter loosening or it could be an exhaust leak. The more I talk to people and listen to other videos this dieseling.

If playback doesnt begin. Havent had a chance to check what it is with a timing light. So check the sound change by disconnecting the v belt to the alternator first.

If the noise goes away you can rule out the engine then isolate the noise to the pulleys waterpump alt or the belt its self. I know I need to remove the valve cover but was looking for opinions. DIY Mercruiser 50 mpi ticking sound starboard side leaking exhaust manifold gasket.

Mercruiser Alpha One Gen II Lower Unit Noise. Oil pressure normal at 40. Retarded the timing without a light and it got better but started clicking around 3500rpm.

If the noise remains then you are looking at engine components. Took it out on the water and it started making a clicking noise around 3000rpm. Remove the serp belt and run the engine.

Continued to retard timing until clicking was gone completely. Did valve lash adjustment. Any input is appre.

Mercruiser Alpha One Gen II Lower Unit Noise - YouTube. I had this problem on a motor of one of my buddies.

Mercruiser 3 0 Noise By Carlos Arrieta