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3.0 omc sterndrive. I am getting no spark beyond my points. I installed a new cap, rotor,and plugs. any ideas?

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Is the rotor turning? Check your coil and condenser.
The OMC drive system uses Micro switches in the linkage. They switch when the throttle positions are correct. The Micros operate the ignition Module.

Some of the outdrive systems have a starter cutout and some have an ignition cutout for the UP positon of the outdrive. The angle of the outdrive is too severe for the U-joints to move so they fix your boat not to start when the outdrive is UP.

Move your outdrive down and see if the igniton comes back.

Posted on May 15, 2010

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Posted on Jan 02, 2017

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My omc 190,1977 inboard marine engine cranks over, it spits and Sputs but won't start


Depending on the hours, this 40 year old engine may need new spark plugs, plug wires, ignition points, cap, rotor distributor, or more serious problems like a stretched, or broken timing chain, or timing chair gears. Did this suddenly start happening?

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1985 VW Cabriolet won't start turns over have power to top of cap-coil but no spark from plugs has new cap-rotor and coil any ideas?


It is hoped you have replaced the wires that go from your distributor cap to each of your spark plugs AND that the gap on your plugs are set correctly.. Secondly, if you replaced your rotor head, and it is not sparking, it is very possible your rotor isn't making the connection inside the dist. cap.

the only way to verify this is to get your old rotor and put it back on. If it fires, you know your replacement part isn't configured properly.

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H4 magneto spark from coil to cap no spark from cap to wires


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Feb 02, 2017 | Cars & Trucks

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Installed new engine now wont fire from distributor to spark plugs.


If you've got spark from the coil but not at the spark plugs, it can only be 1 of 3 things.
  • Bad spark plugs or plugs not gapped properly.
  • Bad spark plug wires.
  • Bad distributor cap and rotor. This is pretty easy to check. Open up the cap and look at the points on the underside of the cap and also the point on the rotor. If they look corroded or worn, then you should replace them.

Good Luck!
~Brandon

May 29, 2011 | 1994 Nissan Pickup

1 Answer

Need to get my hands on a manual for a mazda b2600. Just put a new head gasket in it and the timing is all out.


take the spark plug out of the hole on the engine. the very front plug.
have someone bump the engine for you. take the cap off of the distributor, and when your friend bumps the engine watch the way the rotor is turning. i think its counterclock wise. but anyway, hold your finger over the spark plug hole and have the friend bump -bump- bump the key until the air pressure "Pssst" blows your finger out of the hole. thats the compression stroke of your engine. and right now its set to send a spark to that #1 piston.
SO look at the rotor, and pay attention to what direction the rotor is pointed. and when you put your distributor cap back on, your wire for #1 spark plug has to be pointed at the rotors tip, to get spark. so put cap back on, and then put #1 at the rotor tip, and remember what direction the rotor spins ? now put your spark plug wires on the cap to match the "firing order" The firing order is 1-3-4-2 with the cylinder closest to the front of the vehicle being #1 so if the rotor spins backwards . wherever the rotor tip is now ( since you bumped it to the compresson stroke ) on the #1 cylinder, you know where 1 is. now put #3 piston wire on the next plug, on the distributor then 4 , then 2. tighten everything, put the spark plug back in. and start your truck bro.

Jul 31, 2010 | Mazda B2600 Cars & Trucks

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Ignition point gap and spark plug gap inboard outboard omc


.019 for the points and .035 for the plugs

Jul 05, 2009 | Boating

3 Answers

Spark from coil but not from plugs


Hello;
Take the distributor cap off, and turn the engine over. Does the rotor turn? Then pull the #1 spark plug and with your finger over the spark plug hole , tap the engine over to top dead center. See where the rotor is pointing. Also check to ensure your points are opening and closing. With an ohm meter make sure you have continuity through the carbon for the coil in the cap. Hope it helps.
Thanks;
Rich
RPM Northwest

Mar 31, 2009 | Volvo 240 Cars & Trucks

2 Answers

1987 GMC Jimmy Distributor cap and Rotor replacement


A diagram may not be needed as its a reasonably easy fix to do on your own.the distributor ca p will only fit on properly one way because at the base of the cap locaters can only fit the distributor if they line up.When doing the spark plug leads do them one at a time and if nessecary write or mark leads as 1,2 etc .The rotor can only fit on one way but put a mark on the distributor to show where the rotor was pointing when you took it off and if it still points there when the new one is fitted.When changing distributor cap and leads they have to go to the correct place.Pays to mark the outside of distributor cap where the locating bits are On the new and old one.Fit the new cap and rotor then take a spark plug lead and fit to new cap 1 at a time.You can tell by lining up the marks on the outside of the distributor cap when you hold them one on top of the other.Good luck

Oct 20, 2008 | 1987 GMC Jimmy

1 Answer

No spark from plugs. changed plugs, rotor and distributor, cables, and primary coil.


i would start with the basics- did you make sure you followed the correct firing order when you installed your new plug wires? when you changed the cap/rotor did you notice any track marks inside the old cap? was the old rotor burnt/corroded? ive got a 97 ram and the cap is a b*tch to get to being buried in the back, could you have inadvertently moved the rotor off its timing mark? mis-aligned the crank sensor when installing your new cap? i would recheck how the cap was installed, just because you were able to position it proper and tightened down the screws doesnt mean that you didnt accidently pinch the wires on the crank sensor, or turned the rotor off its mark. also when pressing on the plug wires on the cap did you look for the "1" mark on the cap? this is your reference point for firing order. im not sure these are you problems, but rechecking your work to make sure something wasnt knocked off-kilter, or wrong plug wire placement would confirm the problem lies other than what was replaced. i hope this helps

Jul 25, 2008 | 1997 Dodge Ram 1500 Club Cab

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