Changed point now will not start

[acuraguy81]

Ok please help i have never played with points but after alot of research I thought I could do this since there is not much I cant do. After a full tune up new plugs, wires, cap, rotor and points. The boat ran ok before just took a little when starting it and to get it to idle smooth especial when cold. So now I have put the new parts on and the boat will not even begin to start and idea's please.

it is a 1990 omc 4.3

 

[Bt Doctur]

Re: Changed point now will not start

Try in here, describes the points ign system and how to set it up.
http://www.gofastforless.com/ignition/points.htm
This link is from the manual for ign system.page 4B-7
http://www.boatfix.com/merc/Servmanl/13/13B4R2.PDF

 

[acuraguy81]

Re: Changed point now will not start HELP HELP HELP

Re: Changed point now will not start HELP HELP HELP

Any one got any more ideas I have this all put together the way the directions say im at a lose, I have fire at the plug too and tried starting it off of starting fluid also. It did back fire a few times when I had the plug wires backwards. HELP

 

[bigskiohio]

Re: Changed point now will not start HELP HELP HELP

Re: Changed point now will not start HELP HELP HELP

when you set with feeler or match book cover the points have to be on the dist. lobe or high spot the set with match book that should get it running then use dwell meter, then you have to retime it.

 

[acuraguy81]

Re: Changed point now will not start

I did that with no luck it will not even try to start

 

[acuraguy81]

Re: Changed point now will not start

Please help this makes no sence i have spark at the plug and it will not start at all also i sprayed starting fluid into the carb to try and see if that helped. The boat ran before i did the tune up.

 

[Don S]

Re: Changed point now will not start

Remove the coil wire from the center of the distributor cap. Hold it about 1/2" from a clean ground and crank the engine. Do you have a snappy, sharp blue spark?

 

[acuraguy81]

Re: Changed point now will not start

i WILL HAVE TO CHECK LATER GOT TO GET TO THE TRACK FOR SOME RACING OUT OF TIME THANKS WHAT DO I LOOK FOR IF I HAVE A SPARK WILL CHECK IT ASAP WHEN I HAVE MORE TIME BEEN WORKING ON IT ALL DAY,

 

[acuraguy81]

Re: Changed point now will not start

ok i have the good blue spark and a nice hot spark at my plugs too i checked 2 plugs to make sure. I feel like the wires are wrong or some thing but every thing has been followed by the book and i have checked it like 5 times. what the hell please help. i got no idea why this thing will not run it ran decent before.

 

[Blk-n-Blu]

Re: Changed point now will not start

Safety lanyard connected? Kill switch on?

 

[Bondo]

Re: Changed point now will not start

I feel like the wires are wrong or some thing but every thing has been followed by the book and i have checked it like 5 times.

Ayuh,... We can only Guess...
My Guess is,...
You Didn't properly follow the Book,...
And,...
You're refusing to tell Us Exactly what you Did do...
Did you set the Points Properly,..??
Is the firing order Right,..??
Did you set the Timing,..?? Dwell,..??

Btw,... DON'T be using starting fluid... You'll blow both yourself,+ the barge to kingdomcome....

 

[acuraguy81]

Re: Changed point now will not start

okif you read i have told you i set th firing order to the books specs and set the points gap and no did not set the timing i can not get the thing to run btw i never took the distributer out so the timing was not changed the boat ran before with the timing set where it is now. ok any more smart guys who cant read the entire post i need some real help here no some one wanting to be an ***.

 

[Bondo]

Re: Changed point now will not start

Ayuh,... Just replacing the points,... Changes the Timing, as well as the Dwell....

You also mentioned you had the wires on Right, but after 5 more attemps, you found they were Wrong...

Is the Carb passing any Gas to the cylinders,..??

If you don't like my single digit typing,... I'll Gladly ignore your posts from now on if you'd like,...
No Problem....

 

[Don S]

Re: Changed point now will not start

You probably have the firing order right, but starting in the wrong place.
YOu need to remove the spark plugs. put your finger over #1 spark plug hole, turn the engine by hand in the normal direction of rotation until you feel compression building on #1 cylinder. Then continue turning till the timing marks are aligned. You are now at #1TDC on the firing stroke.
NOW, look at where the rotor is pointing. That is where number 1 spark plug wire should be. then follow the proper firing order on around in a clockwise direction.

 

[acuraguy81]

Re: Changed point now will not start

that is what im gonna do next i talked with some people and we agree to find number one good call thanks for the idea im gonna give it a try to all thanks for the help.

PS how can i rotate the crank or motor by hand there is no way i can get a wrench on the crank pulley.

 

[acuraguy81]

Re: Changed point now will not start

bondo have a good day im here for good help not bashing. I had the wires on wrong the first go around then got them right from what I know and have read in my BOOK. And also from what I know the only way to change the timing is to loosen the distributer and rotate it and I do have fuel flowing from the carb. PS thanks to all with the great help any more tips will be greatly apresiated.

 

[Bt Doctur]

Re: Changed point now will not start

Another way to greatly change the timing is to put the plug wires on wrong.Follow Don`s advice. Find #1 TDC on compression. Where the rotor is pointing in the cap is #1 plug wire, clockwise from that 3,4,2.

 

[Fishermark]

Re: Changed point now will not start

bondo have a good day im here for good help not bashing.

Probably shouldn't have starting the bashing then huh?

from what I know the only way to change the timing is to loosen the distributer and rotate it

That is one way to affect timing - another way is as mentioned above. Changing the point gap affects when the coil fires - hence the timing.

I realize this is all "old school" ... but if you are going to have a boat with points its a good idea to understand how they work. That way you will be able to discover why it isn't working.

 

[Fishermark]

Re: Changed point now will not start

One more thing - don't worry about any illustrations in "the book" that show where the plug wires go. Any wire can be set up as #1 as long as it points to the corresponding spark plug on the firing stroke of TDC. Someone may have removed the distributor in the past and set up #1 in a different location.

 

[littlebookworm]

Re: Changed point now will not start

Acuraguy81: First, try to relax a bit. The advice you've gotten so far is from experts who know what they're talking about. So: to answer your question about turning the engine without a wrench - you need a remote starter button. You can pick it up at any auto supply store. One alligator clip goes to the starter and the other to the battery. You work the button with two fingers and it cranks the starter. Do that with a finger on the number one cylinder spark plug hole till you feel compression. Then continue unto the timing marks line up. A little white paint on the pointer and the zero of the timing marks makes them easier to see. That's your first spark plug wire position. Then position the others as shown in the manual. That should get you started. You can then set the timing afterwards. Good luck and let us know how it all works out for you. Hy