1969 merc1000ss coil specs

[Craigbbbbb]

I have a 1969 merc1000ss 2485051 with no spark. Did the spark test on the coil by using a jumper wire to the switch box and no spark, did the ohms test on the secondary winding and it reads 327 ohms. Does anyone know the correct amount of ohms I am looking for? I have a clymer manual but dear lord that thing is awful!!! Also, if my switch box was bad would the spark test with the jumper wire not work?!! Switch box is under suspicion too but that's another post! Thanks!!

 

[Faztbullet]

Wgich test are you doing?

 

[Craigbbbbb]

Ohms test on the secondary winding on the coil I believe!!!! Multi meter reads 327 ohms when I test where the high voltage lead coming out of the coil, which is the secondary winding I believe? Is an ohms test a valid test for this coil?!!

 

[Craigbbbbb]

I would like to know what amount of ohms is within specification for the secondary winding on the coil for my 1969 merc1000ss

 

[Craigbbbbb]

Hello is there anybody out there?!!! How do I check the oil on my engine?!!! Where is the dip stick?!! This thing is confusing!!!! IS THERE ANYBODY OUT THERE WHO HAS ANY CLUE ABOUT 1969 MERCURY ENGINES?!!!!!!! OR AM I WASTING MY TIME ON THIS FORUM?!!!!!!

 

[Faztbullet]

What test did you use in switchbox??Is the mercury kill switch still hooked up? Coils rarely fail totally and on BCD ignitions most no spark problems are trigger failures..Check that you have +12V at the red terminal (even with the ign off); Turn on ignition and verify +12V at the white terminal (same side as the red terminal).. Jumper the brown and white terminals on the dist. side of the switchbox to each other. Ground the black terminal on the distributor side of the switchbox - this should cause a spark each time you touch ground..If you get spark with the distributor bypassed, and it won't fire with the distributor connected, the trigger is bad and the entire distributor housing assy must be replaced.

If you get no spark using the test, the switchbox is probably bad. In that case, be sure to check for correct power on the switchbox, check all connections,

 

[Craigbbbbb]

Thank you for replying! I did the spark test with the jumper wire and I do not have spark, if the switch box is bad would the spark test on the coil still work? Switch box has over 12V to red with key off, and 12V to white with the key on, and 9V on the white while cranking! I do not suspect the trigger as of yet because I have no spark at all!

 

[flyingscott]

Hello is there anybody out there?!!! How do I check the oil on my engine?!!! Where is the dip stick?!! This thing is confusing!!!! IS THERE ANYBODY OUT THERE WHO HAS ANY CLUE ABOUT 1969 MERCURY ENGINES?!!!!!!! OR AM I WASTING MY TIME ON THIS FORUM?!!!!!!

Don't be that way. First thing you do is buy the FACTORY SERVICE MANUAL for your motor it will answer all your questions.. Your motor does not have a dipstick it is a 2 strk mix the gas and oil 50-1 and use 80w90 marine lube in the lower unit.

 

[Craigbbbbb]

The part number on my coil is 332-2983, my beautiful clymer manual is saying Rx1000(resistance x 1000?) for this part number is 28-34, does this mean 280-340 ohms resistance is with specification? My coil reads 327 on the 2000 ohm setting on my multi meter! Is this within specification?!!!

 

[Craigbbbbb]

What is the heavy metallic square thing that is in between the coil? Can anyone explain what this thing is and does?!!

 

[flyingscott]

Spend the money and get the FACTORY MANUAL for your motor. The square thing is called a laminate leave it alone it never goes bad. You have gotten good advice here and it seems like you don't want to take it. Good luck with your motor

 

[Craigbbbbb]

Well sorry for not getting a factory manual shipped in the last 6 hours!!!! Thanks for spending the time to reply and not giving me one bit of real advice! is the factory manual going to tell me what 28-36 ohms is when it's Rx1000?!!! I don't the factory manual has a lesson on that! Thanks for the useless reply!

 

[Craigbbbbb]

It's also called an engine, by the way! Not a motor!

 

[Craigbbbbb]

Of course you already know that, surely it's in your factory manual just like all the principles of electricity that you claim to be in this holy grail of a manual!

 

[flyingscott]

Here is a piece of advice get a manual on how to read a VOM meter along with the factory manual. But I will start you out
R = Ohms
ohms x 1000
R= 28-36
1K ohm = 1000
28-36 x 1000 = total resistance


By the way I gave you the best advice the mercury manual will answer all your questions.
Good luck with your MOTOR

 

[oldboat1]

For wide ranging info on outboards (mostly OMC, but much of the info will be relevant): http://www.leeroysramblings.com/index.html

In testing coils, this might help: http://www.penn.itgo.com/video-pages/coil-testing.html

Much of the troubleshooting and maintenance isn't very sexy -- cleaning all connections, making sure battery is sound and fully charged, spark testing with an adjustable tester....

 

[flyingscott]

deleted

 

[Craigbbbbb]

Thank you mr flying Scott I appreciate the reply!! Could you please help me understand, if the manual specifications are 28-36 Rx1000 how does this relate to my reading of 327 ohms while at 2000ohms at the meter reader?

 

[flyingscott]

What kind of VOM are you using is it digital or analog and sure you sure it's not r x100
anyways the R x 1000 is a scale not a math problem. The scale on my meter runs 100-1000 that is the R x 1000 scale so your reading of 327 is in the range. By the way the factory service manual is the holy Grail for your MOTOR it was written by the people who built and designed your motor.

 

[Craigbbbbb]

Thanks again mr flyingscott for answering! I am using a digital multimeter with the option of 2000ohms!! I believe my problem is in the switch box as of now but I am not 100 percent sure so I have not ordered a new one yet! My coil does not pass the spark test! If the switch box is bad would the spark test not work? Because the jumper wire is attached to the switch box and I have to ground it out using the switch box too!! My switch box has correct voltage of 12 on the red while key is off and 12v on the white while the key is on, with a cranking volts of 9 while on the white wire!!! I have read that a cranking volt of 9.5 on the white is within specification but that did not come from Mercury that was from someone on this forum! If my cranking volts are 9, would this be enough of a loss in voltage that I would get no spark at all?