View Single Post
  #8  
Unread 07-31-2017, 10:35 PM
THEFERMANATOR's Avatar
THEFERMANATOR THEFERMANATOR is offline
God
 
Join Date: Dec 2006
Location: Zephyrhills Fl
Posts: 7,206
Send a message via AIM to THEFERMANATOR
Default

Any engine needs 4 elements to run all in the correct order. Fuel, air, spark, and compression. In most diesel engines the spark happens from the shear heat of compression, in a gas engine they normally use a spark plug. Air and fuel mix is sucked into the cylinder(except for dfi applications in which case the fuel is injected dorectly into the cylinder), the piston moves up compressing the mix, a spark occurs, the piston gets sent back down, and then it exhausts the burnt gases. If you don't have compression, it will never run as the fuel air mixture won't properly atomize to ignite. If you have no fuel, then theres nothing to ignite. No spark and you can't ignite the mix. And if it can't exhaust the gases, it cannot pull in air/fuel mix to repeat the process.

That engine uses a direct drive starter and needs good CLEAN cables to kick over. It actually takes more juice to start that engine than a v-6 does because of the direct drive starter vs gear reduction. Also, anytime an oil injected engine has sat, you're supposed to start it and run it on a 50:1 mix until oil can get back into the system. Several have burned up outboards with functioning oil injection by not running pre mix until the system is purged, let alone the pos vro system that omc used. Pull the plugs put of the engine and see if it spins over with no load, then so a compression test(should be around 130-150 on that engine). Also check it for spark while the plugs are out. Start checking the basics and work your way down the list to see if you have the needed requirements for it to run.

And I hope it wasn't run at anything over idle with the airbox cover off. If it was, I would be willing to lay odds she's been leaned out BIG TIME!
__________________
2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR

2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD

AND THE PINK JEEP!!!! R.I.P.
http://www.wellcraftv20.com/communit...ad.php?t=11664
Reply With Quote