Case 530 Pertronix module

[KM Thompson]

Hi. Does anyone know which Pertronix electronic ignition module fits the G159 engine. The distributor is a Prestolite IAD-6003-2F. Any information will be appreciated.

 

[Jim.ME]

Hi. Does anyone know which Pertronix electronic ignition module fits the G159 engine. The distributor is a Prestolite IAD-6003-2F. Any information will be appreciated.

A call to Pertronix will get you the answer direct from the source.

 

[Joe (Wa)]

5 years ago Pertronix Igniter 1 was p/n 1541. Igniter II was p/n 91146A. for IAD 6003-2F, 2J, 2k and 1B. There is now an Igniter III in the mix. Best to call as Jim advised.

I might add here all IAD6003 distributors are the same. The suffix 2F, 2J, etc designates the different governor springs that dictate the advance start, curve, and limit. The 2F and 2J are used on many Case tractor engines.

 

[KM Thompson]

Thanks Jim and Joe!

 

[KM Thompson]

So I bought the 1541 igniter and the instructions say to remove the points plate however, the points plate appears to be a cup rather than a plate that is press-fitted into the distributor body. Can anyone tell me ho to get the plate out?

 

[mEl]

So I bought the 1541 igniter and the instructions say to remove the points plate however, the points plate appears to be a cup rather than a plate that is press-fitted into the distributor body. Can anyone tell me ho to get the plate out?

Can you send a pic so we can see what you have there?

 

[Joe (Wa)]

Are you seeing a dust cover like pic 1, if so just pry it off. Once you get the points, condenser, etc off the breaker plate there are only two screws to remove it and view the governor area. When you get into the governor area clean it up real good, check springs, clean and light oil sliding surfaces. When you twist and release the gov flyweights both should snap all the way back in the stop plate.

 

[mEl]

Joe, I assumed that was the issue as well, that cover can be difficult to remove depending on the length of time it's been undisturbed, good advice on servicing the advance weights, I have seen them frozen solid. I use Pertronix exclusively as they are tolerant of some shaft bushing wear which would change the point gap on a points system. A little Lathe work and a Vega HEI distributor can be adapted as well

 

[Tgrasher]

Just a side story, went with a nephew to load up a couple gas 800B's, one parts and one ran when parked. The later had stinking old gas in it and to my amazement it started after a couple tries, ran poorly but was able to drive it upon a trailer. When checking the distributer found an electronic ignition. Made a believer out of me.

 

[Joe (Wa)]

Hi mEl. Dust covers as you know are usually missing as they don't appear to serve any function and are hard to get off. The pry up rim of the cover matches the rim cutout on the distributor. A flat blade screwdriver will pry it up. You, Tg, and I know that but it may not be obvious to a weekend mechanic that hasn't run into one of these covers before. I have 3 of them in my junk box.

 

[mEl]

Being an Ex professional mechanic I always put them back in but yes they are probably not necessary, the Delcos have a plastic one, but I think that one is necessary the way the cap fits on them. Once on a tune up I had a no start, seems the condenser terminal at the connection was just high enough to short against that cover, after that I always folded them over. FWIW, I recommend the Ignitor 2 as it is built to handle modern low primary ohms coils, when doing a conversion on a 4-cylinder engine, a resistor needs to be used on the original Ignitor as the module can overheat and fail and has some other features such as multispark.

 

[Joe (Wa)]

I think the cover would be a plus farming crops especially grain. I had converted my VAC and 310 to 12v alternator and replaced the 311B generator with an alternator. All three tractor running fine on points a few years. Over 20 years ago I bought the 1541 igniters & mating coils for all 3 tractors. The VAC last about a year, back to points. The 310, my most used tractor, lasted less than a year, back to points. The 311B, least used tasctor, still was running ok when I sold it a year or so ago. They probably have made some improvement in the 1541 or it wouldn't be still available. I only have the 310 now, it going stay in points.

 

[mEl]

There is nothing wrong with points, the system is tried and true, the modules definitely give a hotter spark and pulling we run some hotter fuels and a bit more compression and sometimes rpms. The old original Pertronics systems were specific about having a resistor in circuit, but wired a bit different than a normal resistor system. I think I related this before but the dwell time on a 4- cylinder module was long enough to allow the module to overheat. 6-cylinder tractors did not have this issue as the module was breaking 6 times per revolution allowing more time to cool. If adding a Pertronics, look at the way the resistor is in circuit.

 

[Dingo3]

I think the cover would be a plus farming crops especially grain. I had converted my VAC and 310 to 12v alternator and replaced the 311B generator with an alternator. All three tractor running fine on points a few years. Over 20 years ago I bought the 1541 igniters & mating coils for all 3 tractors. The VAC last about a year, back to points. The 310, my most used tractor, lasted less than a year, back to points. The 311B, least used tasctor, still was running ok when I sold it a year or so ago. They probably have made some improvement in the 1541 or it wouldn't be still available. I only have the 310 now, it going stay in points.

The igniter can not handle the ignition switch being left on for any length of time with the engine not running. The igniter II does not have that problem.

 

[John Saeli]

There is nothing wrong with points, the system is tried and true, the modules definitely give a hotter spark and pulling we run some hotter fuels and a bit more compression and sometimes rpms. The old original Pertronics systems were specific about having a resistor in circuit, but wired a bit different than a normal resistor system. I think I related this before but the dwell time on a 4- cylinder module was long enough to allow the module to overheat. 6-cylinder tractors did not have this issue as the module was breaking 6 times per revolution allowing more time to cool. If adding a Pertronics, look at the way the resistor is in circuit.

Mel: I have heard that the Electronic system will create a hotter spark, but how is that possible if the coil is not changed?

 

[mEl]

John that is a good question, my take on it is that with a points and condenser system when the points break the collapsing voltage in the coil primary induces a voltage in the primary windings which flows back into the condenser while also creating the high voltage in the secondary or high tension lead, the condenser slows the collapse so the primary induced voltage does not go as high. With a Pertronix, the current is shut off electronically and makes a primary voltage of 300 to 400 V, higher because the current flow is instantaneous inducing a much higher voltage in both the primary and secondary. I searched Pertronix and they claim 4-5 times higher hi voltage. It is definitely stronger, A good Pertronix will throw a good 3/4 inch or more. The other side of the story is that if only 15000 V is needed to fire the plugs that is all the higher the voltage will rise. I put points and condenser back in Jerry's 350 and it works just fine. I use the electronic system but if others choose not, that is fine with me.

 

[Joe (Wa)]

The igniter can not handle the ignition switch being left on for any length of time with the engine not running. The igniter II does not have that problem.

Dingo3 I agree with you. I use 4 terminal ignition switches only with a ACC terminal for lights and accessories, coil is not in that circuit. Also with an alternator like the Delco 10si, wiring the sensing lead to the ACC terminal prevents shutdown run-on, you don't need to add a diode or resistance in that circuit like you do if the sensor lead is wired in the start/run circuit on a 3 terminal ignition switch.

 

[Jim.ME]

Dingo3 I agree with you. I use 4 terminal ignition switches only with a ACC terminal for lights and accessories, coil is not in that circuit. Also with an alternator like the Delco 10si, wiring the sensing lead to the ACC terminal prevents shutdown run-on, you don't need to add a diode or resistance in that circuit like you do if the sensor lead is wired in the start/run circuit on a 3 terminal ignition switch.

I think you meant you wire the excitation terminal to the ACC terminal of the switch. The excitation terminal (#1 spade) gives the back feed that causes run on after the key is turned off..

 

[Joe (Wa)]

Yes Jim you are correct, the #1 terminal is excitation. #2 terminal is the voltage sensor for the VR, usually connected to the Batt terminal.

Tgrasher described some of my post comments are like I have dyslexia of the brain, an absolute perfect description.

 

[Tgrasher]

Joe if I had your knowledge my knuckles wouldn't be so scared up. My problem is I don't retain information, if I don't write it down, I have to go back and double check.