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351 merc will not fire???

 
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Shameless



Joined: 21 Jul 2010
Posts: 3
Location: London ontario

PostPosted: Wed Jul 21, 2010 6:56 am    Post subject: 351 merc will not fire??? Reply with quote

Hey I recently purchased a 1977 22ft sea ray with a 351 Merc. It has been running great. I had it out about twenty/thirty times and for hours on end. I fired it up and turned on my blower fan and ten minutes later it just died. Now it turns over but will not start. we pulled plugs and the left side had a little moisture but not major. There is spark at coil and cap. It also is getting fuel. Any ideas????????? Question
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MikeW
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Joined: 01 May 2006
Posts: 680

PostPosted: Mon Jul 26, 2010 2:15 pm    Post subject: Reply with quote

Hello, pull a spark plug, connect the plug wire and hold the electrode against the block. Turn the engine over and see if the plug is getting spark. Cool
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Shameless



Joined: 21 Jul 2010
Posts: 3
Location: London ontario

PostPosted: Tue Jul 27, 2010 3:53 pm    Post subject: Reply with quote

MikeW wrote:
Hello, pull a spark plug, connect the plug wire and hold the electrode against the block. Turn the engine over and see if the plug is getting spark. Cool
Thank you very much Mike will do.......
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Shameless



Joined: 21 Jul 2010
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Location: London ontario

PostPosted: Thu Jul 29, 2010 3:12 pm    Post subject: No luck, will not fire Reply with quote

Mike I do have spark at plugs but did find some condensation, so changed them anyway. I am headed to put on new coil, cap, and rotor. do you have any other ideas???? thanks,
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MikeW
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PostPosted: Thu Jul 29, 2010 3:40 pm    Post subject: Reply with quote

If you are getting spark and fuel for sure, it should run unless the engine jumped time. I would pull the spark plugs and do a compression test. You should have 120psi or more. Cool
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