[Spridgets] Mercruiser 4.3

Mark mark at nashvilletn.org
Sat Sep 6 15:52:41 MDT 2008

Thanks for all of the tips, we got the engine running like a champ and the 
vacation was saved.  It turned out to be a corroded plug on the ignition 
amplifier board that mounts on the side of the distributor.  Sometimes it 
would work and other times not.  We cleaned the "green" out and it fired 
right up.  We filled it with silicone grease so hopefully it won't do it 
again.  I won't be complaining about expensive parts again for a while, the 
plug with 5 feet of wire is $70 and the ignition module is about $300.  Glad 
we didn't need either.


----- Original Message ----- 
From: "Mark" <mark at nashvilletn.org>
To: <shop-talk at autox.team.net>; "Spridgets" <spridgets at autox.team.net>
Sent: Wednesday, September 03, 2008 8:02 PM
Subject: [Spridgets] Mercruiser 4.3

My next-door neighbor just bought a 93 Sea Ray with a Mercruiser 4.3 V6
engine.  He has had a heck of a time starting it but once he does get it
running it runs good.  He called me tonight thinking that I might help with
the problem.  We centered on the electric choke and I think the problem is
in the driver seat.  He doesn't have a manual so we don't know what the
procedure should be.  It looks like the throttle should be disengaged from
the shit mechanism with the unlock button below the engine control.  At the
first detent the choke seems to be free to move mechanically and if cold the
electric choke servo should move the choke butterfly.  Can anyone confirm
what the starting sequence should be, are we getting warm?  It is a Alpha
One Chevy based V6, 2 barrel carb with a Thunderbolt ignition.  I can't seem
to find anything on line about operating the engine.

Help,  he is taking his family to the lake tomorrow evening for a long


More information about the Spridgets mailing list