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i have a old style points distributor , when i turn the key switch on it burns my points up,melting everything points,rotor,cap what could be the problem ? this is on a 1975 mercedes 230 distributor ,the car was running just fine , and i parked it for about 30 min or so and it started smoking inside the distributor , it was melting my points , could this be a bad coil >?

2007-04-04 05:41:31 · 8 answers · asked by jeremy 1 in Cars & Transportation Maintenance & Repairs

8 answers

The first thing I would do is disconnect the coil and see if it still shorts the points out. Either the coil is shorted out, or something is grounding thru the points. Check your grounds.

2007-04-04 05:50:45 · answer #1 · answered by megofish2day 3 · 0 0

For a points system being melted meaning the is an overload in the system somewhere.
Usually when a induction ignition coil has gone bad in my experience there is no spark.
So I would work my way back from the points.
So points are blown.
Check and make sure correct dc polarity is observed.
Incorrect polarity can cause this.
Don't rule out the condenser coil and the ballast resistor.
After all this if you still don't find the problem.
Check the chassis ground and make sure it isn't shorted
or disconnected.
If you have power through the chassis unless it is a reverse ground vehicle. Then you have a problem.
Also a good indicator of reverse vehicle or problematic polarity issues is meter needle deflection. If all your gauges deflect to maximum or minimum when the key is to the on position ot start then there is a definite polarity issue.

2007-04-04 06:47:34 · answer #2 · answered by Joseph G 2 · 0 0

Sounds like something in the distributor is shorting directly to ground. Disconnect everything and check for obvious signs near the points, including proper gap and condensor ground. Also check the voltage coming into the points and also make sure that you have a ballast resistor wired into the voltage side through the points circuit. All the points do is when they close it collapses the field and causes the coil to expend its 20-40k volts through the main coil wire. Pretty simple circuit, so it shouldn't be hard to find.

2007-04-04 05:52:35 · answer #3 · answered by azhardbody74 2 · 0 0

You've got something shorted out inside the distributor. Should have a condensor (capacitor) inside the distributor, it may have shorted out.

Try and check the wiring to the coil also.

2007-04-04 05:48:29 · answer #4 · answered by Fordman 7 · 0 0

it truly is been some years because of the fact the vehicle marketplace did away with factors and condensor - kind ignition structures. it truly is between the excuses they did it! it form of feels to me that in case you alter the full ignition equipment, it is going to repair the priority. The final time that happened to me it strengthen into led to via a bare twine contained in the distributor... while the twine is damp, it motives a short circuit and this could soften the standards. it is likewise why they began putting an 'acc' place on the biggest swap, because of the fact in the adventure that your ignition is energized for too long, the contacts on the standards strengthen into welded mutually.

2016-10-02 04:14:40 · answer #5 · answered by ? 4 · 0 0

im guessing this has a coil the resister on the side of the coil is bad and the amount of power is too much or go to cartalk.com the folkes there are the ones in the sunday newspaper they are mechanics and write the answers in the papers and have a answer page there good luck ,,

2007-04-04 05:49:06 · answer #6 · answered by Anonymous · 0 0

Is it possible the ballast resistor wiring was tampered with for some reason?It keeps the current flow at a reasonable level that the ignition components can survive.

2007-04-04 05:48:48 · answer #7 · answered by wildmanny2 7 · 0 0

Yes or short on hot side.

2007-04-04 05:44:35 · answer #8 · answered by James B 5 · 0 0

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