Need Advice On Aftermarket Distributor Cap And Rotor

Farmall Super A, AV, 100, 130, & 140 1939 - 1973
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F.POLLIO
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Need Advice On Aftermarket Distributor Cap And Rotor

Postby F.POLLIO » Tue Feb 09, 2021 8:44 pm

I have an IHC distributor and coil set up on a 140. Last Spring I changed the cap and rotor along with the points and condenser. It all worked fine for a while and then started having trouble with the engine hesitating and puffing some black smoke. Well, assuming that it was not any of the new parts, I replaced the coil, sediment bowl, spark plugs, copper wires, along with rebuilding the carburetor. I even went as far to remove the distributor to replace the bushing(which had some wear),also the shaft with a small gear on it. Because the previous set of points had made grooves in the distributor lobes I replaced that part with a good used one. All of that and it would still act up. The replacement cap would get a type of corrosion on the metal contacts that the rotor passes by. If I would clean them off with a small brass brush the engine would run ok for a while but would start to hesitate and puff black smoke and the corrosion would be back. OK, now being frustrated and discouraged I put the old cap and rotor back on and have not had any trouble since then. After reading through some older threads there were some comments about the quality of some aftermarket caps and rotors. I think I was a victim of that. Does anyone have advice or recommendations as to the best quality cap and rotor? I could but would rather not look for NOS parts unless that is the best and only way to go. I trashed the replacement cap and rotor but maybe should have kept them to try and figure out what was defective.

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Re: Need Advice On Aftermarket Distributor Cap And Rotor

Postby tst » Tue Feb 09, 2021 9:15 pm

use a cap with brass inserts, the aluminum corrodes quickly

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Re: Need Advice On Aftermarket Distributor Cap And Rotor

Postby inairam » Wed Feb 10, 2021 7:59 am

I have also had trouble with IH points and condensers for the past year or so.

I started using parts from NAPA. The points especially look different and appear to hold up better.
When you only have 9 horsepower you need to know the names of all of the ponies!

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Re: Need Advice On Aftermarket Distributor Cap And Rotor

Postby Gary Dotson » Wed Feb 10, 2021 8:16 am

I agree on the NAPA suggestion but be aware that NAPA, like everyone else, has high quality and lower quality components. Specify their Echlin parts line, for ignition and electrical parts. There are a few other quality brands but you always know where to find Echlin. I also agree on the brass conductors, especially in damp environments.

inairam
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Zip Code: 19342
Tractors Owned: 1948 6v - Dozer
1949 with kub klipper belly mower. mag 6v - Mom
1950 with plow, 54 blade, mott mag 6v - Roxanne
1953 54 blade, c22, wood 42 6v
1957 6v - barn Queen
1965 lo-boy with c-3 mower 12 v - Loboy
1974 Horse II 12 v c-2
1975 with woods 42-6 12 v - Horse
1979 long strip 12 v stuck engine
130 with international 1000 loader 6 v
1969 140 with bush hog tow behind mower 12 v
Terramite T-6 4WD Backhoe Perkins diesel
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide
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Re: Need Advice On Aftermarket Distributor Cap And Rotor

Postby inairam » Wed Feb 10, 2021 9:59 am

Gary Dotson wrote:I agree on the NAPA suggestion but be aware that NAPA, like everyone else, has high quality and lower quality components. Specify their Echlin parts line, for ignition and electrical parts.


I have been using IH200 cap and CS1600 points both say NAPA ECHLIN on the box.
When you only have 9 horsepower you need to know the names of all of the ponies!

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Re: Need Advice On Aftermarket Distributor Cap And Rotor

Postby F.POLLIO » Wed Feb 10, 2021 10:31 pm

Thank You for the NAPA information. That is where I should have gone to start with. Also the cap I purchased had brass inserts not aluminum. The rotor could have been the problem. I can remember when they used to sell those aluminum insert caps with automotive tune up kits in some department stores around here. They were not very expensive kits but were not the quality of O.E.M. or Echlin.

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Re: Need Advice On Aftermarket Distributor Cap And Rotor

Postby Gary Dotson » Thu Feb 11, 2021 8:36 am

Years back, if we went to our local Chevy / Cadillac dealer and asked for dist. cap for a Chevy V-8, you got one with aluminum contacts but if you asked for one for a Cadillac, it had a different part # and brass contacts. They sold a lot of Cadillac caps!

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Re: Need Advice On Aftermarket Distributor Cap And Rotor

Postby SamsFarm » Thu Feb 11, 2021 9:36 am

tst wrote:use a cap with brass inserts, the aluminum corrodes quickly


I have had the same problem in the past.

Why some manufactures want to make inferior products is beyond me!

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Re: Need Advice On Aftermarket Distributor Cap And Rotor

Postby tst » Thu Feb 11, 2021 10:38 am

its cheaper, all about the $$$$

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Tractors Owned: 1968 Cub Fast Hitch
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CS Bell No. 60 Grain Mill on a unmodified Fast Hitch Disk hitch prong
Home Made Fast Hitch Potato Plow
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Couple 1948 Cubs
172 Runner Planter
53 Fertilizer
Cub-3 Field Cultivator
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Cub-22 Sickle Bar Mower
Mechanical Transplanter with side mount barrel (needs a fast hitch adapter) :)

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Re: Need Advice On Aftermarket Distributor Cap And Rotor

Postby SamsFarm » Thu Feb 11, 2021 10:54 am

Tst, your right!

But a bad reputation is costly!

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Re: Need Advice On Aftermarket Distributor Cap And Rotor

Postby PoconoCub » Mon Apr 26, 2021 11:25 am

Not knowing when my Super A was tuned up last and I have owned it for 2 years now, I have found the ECHLIN Distributor Cap Part #: ECH IH350, Contact Set (Points) Part #: ECH CS1600, Distributor Condenser Part #: ECH IH200, but I do not see an ECHLIN Rotor part number, does ECHLIN not make a rotor or does anyone have a part number for one?

I am also considering the NAPA Belden Suppression Spark Plug Wire Kit - Part #: BEL 700168 to hopefully stop the radio interference when running my Cubs or Super A near the house, does anyone have thoughts on those, and will it cut down on the radio interference?.
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Re: Need Advice On Aftermarket Distributor Cap And Rotor

Postby Glen » Tue Apr 27, 2021 7:12 pm

Hi,
Try IH 300 for the rotor, someone put that number at the Cub forum before.

I put suppression spark plug wires on a Cub in the past.

I noticed later that the points had problems with burning, and metal moving from one point to the other.
I asked the man that I buy things from at the Case IH dealer in this area about it, he has been there for over 40 years.
He asked me if the Cub has resistor, or suppression spark plug wires, or resistor spark plugs. I said yes, it has the suppression wires. He said change them to regular solid core wires, the Cub ignition system was not designed to use suppression wires, or spark plugs. It upsets the balance in the system, and metal will move from one point to the other.
I put on new solid core wires.

They have said before on the Cub forum to use only solid core wires. :)


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