WOT Timing vs Cranking Timing

[tarponator]

Good day again!! I set my "cranking timing" with a fully charged battery (plugs out/grounded)to service manual specs. <br /><br />1998 Mercury 150 v6 - cranking timing 21 degrees BTDC. WOT timing 17 degrees BTDC. <br /><br />The engine runs great, idles very smooth and quite, good throttle response. I'm in the break in routine. <br /><br />Am I supposed to run the engine WOT and recheck the timing? The service manual says 17 degrees WOT timing. Is it safe to do that test during breakin. The first 5 hours I'm instructed to keep the RPM's under 3500 (variable of course). Some good advice on this would be appreciated.

 

[Clams Canino]

Re: WOT Timing vs Cranking Timing

Wait till it's broken in to cheack WOT timing, run the light while a helper drives the boat - just be carefull.<br /><br />Good luck with the break-in.... that 1st time up to WOT will tell the tale.<br /><br />-W (got told a real whopper of a tale yeterday)

 

[tarponator]

Re: WOT Timing vs Cranking Timing

Thanks...I appreciate the response....I will do just that....