72 rude motorola amp ohm?

[prolinews]

Installed new power pack the boat ran fine for a few minutes put boat in water throttled it up ran great then died . when tried to restart the timing order was out of wack . checked all connections etc. everthing seemed fine . pulled out the test meter everything seems to check out. I tested to see if the amp was getting power it was . took the yellow wires off terminal to ohm got zilch with and without the key on is this my problem or am I jumping to conclusions?

 

[Laddies]

Re: 72 rude motorola amp ohm?

to test the amp simple turn on the key if you have voltage to the amp, ground the wire that goes to the pts or trigger when you ark it you should have spark

 

[prolinews]

Re: 72 rude motorola amp ohm?

had no ark nothing power coming in goes negative on the meter I guess the the amp is dead it looks to be the original.

 

[R.Johnson]

Re: 72 rude motorola amp ohm?

The yellow leads you were testing,are the leads to either the stator, or the rectifier. They are yelow, yellow-gray. How did you test these leads. The purple lead going to the pulse-pak should have battery voltage with the key on, minimum of 9.5 volts cranking. Joe Reeves has a post telling how to test pak out-put with a 12 volt test bulb.

 

[Laddies]

Re: 72 rude motorola amp ohm?

If you install a new amp make sure of all connections, if your system voltage falls below 10 volts it can kill a brand new amp in a heartbeat, this is a very tempermently system, if your alt. is not working or a bad battery connection, many thing on it can cause expencve problems. take care---Bob

 

[prolinews]

Re: 72 rude motorola amp ohm?

I tested all the leads all the grounds .even found a bad wire on the rectifer replaced it with a spare of another motor . the stator pegged the meter . from the stator I have the two yellow y/g that hook with the rectifer and a small box that is similar to the rectifer but square about 2x3 it has a ground a yellow and yellow grey and a purple that goes to the pulse pack . from the pulse pack I have a blueish green that hooks to the coil this motor only has one coil. the cover calls the 2x3 thing a motorola amplifier. The yellow and yello/grey on this do not ohm like the stator does is this part suspose to? the motor tries to crank getting plenty of spark but not at the right time. what exactly is this 2x3 box and what does it do? what else could cause the firing order to get out of wack I pulled the fly wheel checked for bad wires and faulty parts visually everthing seemed in order.

 

[R.Johnson]

Re: 72 rude motorola amp ohm?

That 2 x 3 box is called a clipper. It's function is to protect the pac from voltage spikes that could damage it. There is a ohm's test for that which is quite involved using a diode to make the proper set-up. You say you have spark, so lets not worry about the clipper right now. So say the spark is way out of time. How are you determining this. You said the stator pegged the meter. If this was a static test, the stator should show about 1/2 ohm. When you get this engine up, and running, I would do a running test by hooking an amp. meter hooked in series between the pak, and coil. It should draw no more than 1-1/2 amps, and hold steady. Even if it does, it would be a good idea to replace the coil just because of it's age. A faulty coil can blow the pac. You can also do away with that clipper at this time. Make sure all connections are clean, and sound, making very sure of any grounds. You also want a good battery with about 750 CCA, and use brass, or stainless nut's, not wing nut's. Component's on this engine can get very exspensive, in some case's, more than the worth of the engine. Keep us posted as you go along.By the way! check that flywheel key.

 

[prolinews]

Re: 72 rude motorola amp ohm?

pulled the clipper ran the test it didn't spec out at all zero readings taking the clipper and stator to the dealer and let him check it too . see about getting a new coil .have a couple of small melt spots on the stator ..getting a new test meter as well don't trust mine..

 

[prolinews]

Re: 72 rude motorola amp ohm?

well back fom the parts store the clipper was bad my new power pack toast my coil and wires the main culprit about 800 bones to replace my compression is weak in a couple cylinders. My experience with this unique motor has come to a end .It was fun while it lasted I bought the boat for the hull not the motor . that motor was purring the first time I ever landed a dolphin which was a major feat . everyone thought I was crazy for taking that old of a motor offshore . but hey that is why we have radios and sea tow memberships. today while at the dealership I bought a 200 merc . should be easier and cheaper to find parts for. I feel that extra 75hp will come in handy going through the cut. thanks everyone for the help anyone need a good selectric foot let me know.

 

[R.Johnson]

Re: 72 rude motorola amp ohm?

The way you started out on this last post would be good opening line's for a country song. It certainly can get this way with some of these older engines. Good thing you caught it now.

 

[prolinews]

Re: 72 rude motorola amp ohm?

Would you believe that after I bought a motor . Someone popped up with a 25 dollar donor motor .The old rude will run again too bad it will be on a pontoon boat . pulled the motor before I got the good news. The major culprit on the engine firing out order was the rotor cap It slipped out of place the plastic key way gone .