Re: timing problem with 84 115HP
How did you pull the flywheel off the original crankshaft? By first removing all the center-hub bolts, then pulling the center hub off the crankshaft?<br /><br />If so, I would say that the flywheel got reassembled to the hub, 180 deg out from what it's supposed to be.<br /><br />All 99 CI Inline Merc crankshafts (standard production models, that is - not racing versions) are the same, so it's virtually impossible to have a crankshaft that's 'clocked' differently from the other.<br /><br />I'd expect that it would hardly run at all with the flywheel magnets 180 deg from where they should be! <br /><br />I'd align #1 cyl to your best guess of TDC, then unbolt the flywheel from the center hub and rotate it until the TDC mark is aligned with the timing pointer. There is only way to orient the flywheel on the bolt holes such that this will happen. One hole off in either direction will be very obvious as nothing will line up.<br /><br />I expect you'll find that it runs a lot better with the flywheel in that position too!<br /><br />BTW, just so we're on the same page, TDC on #1 is when the piston is closest to the spark plug. Silly I know but that is a very important assumption!!<br /><br />HTH and let us know what you find.........ed
