Merc 7.4L (454) MPI Fuel Pressure - iboats Boating Forums
Feb 6, 2008 · Anyone know what the factory fuel pressure setting is on a 2001 Mercruiser 7.4L MPI at the fuel rail Schrader valve? I'm trying to diagnose a possible faulty (or clogged) injector vs. a …
what is a mercruiser 188 - iboats Boating Forums
Sep 26, 2013 · Re: what is a mercruiser 188 ^^^ Sir, you are confused. You're thinking of the mercruiser 470, 170, 180 series engines, the big 3.7 liter 4-cylinder. It does have all the problems you list. …
Replacing Exhaust Manifold and Riser on 3.0L - Tips Needed
Aug 19, 2016 · The time has come to do some preventative maintenance and i'm planning on changing out the Exhaust Manifold and Riser on my 3.0L Mercruiser. The engine is a...
Mercruiser trim/tilt wiring - iboats Boating Forums
Aug 22, 2010 · Re: Mercruiser trim/tilt wiring For the trim limit switch, look for connectors with a purple/white wire and two blue/white wires. Polarity is not important. Adjust the TL switch to give a …
How to winterize closed cooling system engine - iboats Boating Forums
Oct 2, 2012 · Hello, I would like to winterize 7.4 L Mercruiser engine (1997 Mercruiser 7.4 L 8 cylinder) with closed cooling system. By reading various threads on the forum, I would like to verify the …
Mercury MerCruiser Sterndrives & Engines - iboats Boating Forums
Aug 7, 2009 · Mercury MerCruiser Sterndrives & Engines Sponsored by Quicksilver Propellers 1 2 3 … 4747 Next
3.0L 4 cyl. mercruiser, cranks but won't start - no spark?
May 27, 2013 · Re: 3.0L 4 cyl. mercruiser, cranks but won't start - no spark? Puts some points and condenser in it. They tend to glaze over while setting for long periods of time after use. Then they …
Installing A 90 Amp Fuse - iboats Boating Forums
Aug 14, 2008 · The 90 amp fuse on the starter of my Mercruiser 5.0 needs to be replaced (my screw up :redface: ). Due to the configuration of my boat (Nautic Star 232 DC), this fuse is EXTREMELY hard …
Steering play | Boating Forum - iboats Boating Forums
Sep 28, 2010 · Re: Steering play To fix it will require figuring out where the slop is first. Get 2 people 1 holds the steering wheel still 1 moves the outdrive back and forth You check everything in between …
555 ECM faults | Boating Forum - iboats Boating Forums
Jun 6, 2009 · Re: 555 ECM faults Do you have Mercruiser Manual #36, ECM 555 Diagnostics? I didn't see it under the Adults Only sticky, but I downloaded it from somewhere. If you have it, follow the …