OMC 230 (GM305) point gap ?

[DBinSarsfield]

Hi,<br />Trying to find out what the point gap is in my 1979 OMC 230 with a Mallory distributor.<br /><br />Thanks

 

[Bt Doctur]

Re: OMC 230 (GM305) point gap ?

Denis, .018 on the feeler gauge

 

[neilmack]

Re: OMC 230 (GM305) point gap ?

Denis, <br />agree with .018 on the feeler gauge, but consider buying a cheap dwell meter, it's a more accurate way to gap points, some meters cost as low as $20.00, dwell spec is 30 degrees, plus or minus 2 degrees.<br /><br />I have a 79 SeaRay with a OMC Stern Drive 305 GM, 200 HP, and Mallory Distibutor YL624JV.<br /><br />Can you tell me the color of the wires that are going to the + and - terminals of your ignition coil? I want to see if it's the same as mine.<br /><br />I have 2 wires on the + terminal and 3 wires on the - terminal. Boat isn't here so I can't give you the colors today. I don't have a manual yet.<br /><br />Thanks

 

[DBinSarsfield]

Re: OMC 230 (GM305) point gap ?

Thanks for the points info.<br /><br />I have 2 wires on the +: purple with black line and purple with red line<br /><br />I have 2 wires on the -: solid grey into the wiring harness and solid black that goes to the distributor.<br /><br />Hope this helps

 

[neilmack]

Re: OMC 230 (GM305) point gap ?

Thanks Denis for the wiring info. <br /><br />I have the same 2 wires on + terminal, same as you.<br /><br />On my - terminal I have the solid gray wire, and the solid black wire (same as you). Difference is a 3rd wire that comes from my shift interupter module (small black box) which is mounted on a brass plate attached to the top of the engine just forward of the distributor.<br /><br />Do you have a shift interupter module on your boat? It's also known as a ESA module, for Electonic Shift Assist<br /><br />I'll check the colour of this 3rd wire tomorrow

 

[DBinSarsfield]

Re: OMC 230 (GM305) point gap ?

No interrupter on mine - no 3rd wire.