I don't know if it matters if we're talking about a big-block or small block with the following stuff, but this pertains to my 318.

We're talking here about points/condensor, not electronic ignition.

Question 1:

Is there a rule-of-thumb when it comes to plug wire resistance if we're talking about points vs electronic or hei? It it prefered or recommended to keep plug wire resistance to something like 500 ohms per ft for points, but higher for electronic?

My current wires (Canadian Tire brand "MotoMaster Premium Silicone Constant Voltage" 20+ years old) are measuring 900 to 1400 ohms, which is working out to 500 ohms per ft.

A couple of brand-name wire sets that come up when plugging in the appropriate make/model/year are:

NGK 53420

Denso 671-8123

I can't find resistance specs for them.

Question 2:

Coil resistance.

I have 5 spare coils (pulled from junkyard years ago). One difference between them is the location of the screw terminals. 9 and 3 o'clock vs 10 and 2 o'clock. What is on the 318 now is 10-2.

The 9/3 might be for slant-6? I can't see any numbers on those.

The 10/2 spares have PN 2444242 and 2495531.

In total I have 3 that are 10/2, one on the car (can't see a number on it) and 2 spares. All 3 measure primary resistance 1.6 ohms. BUT - the spares measure 11k ohms secondary, but the one on the car measures 24k. (The 10/3 coils have secondary resistance 8.5k - 10k).

So I'm asking if these coil resistances are well documented and well known, to the point of being able to say the 24k secondary reading I'm seeing is not right.

(oops - I should have filed this under electrical / ignition...)

We're talking here about points/condensor, not electronic ignition.

Question 1:

Is there a rule-of-thumb when it comes to plug wire resistance if we're talking about points vs electronic or hei? It it prefered or recommended to keep plug wire resistance to something like 500 ohms per ft for points, but higher for electronic?

My current wires (Canadian Tire brand "MotoMaster Premium Silicone Constant Voltage" 20+ years old) are measuring 900 to 1400 ohms, which is working out to 500 ohms per ft.

A couple of brand-name wire sets that come up when plugging in the appropriate make/model/year are:

NGK 53420

Denso 671-8123

I can't find resistance specs for them.

Question 2:

Coil resistance.

I have 5 spare coils (pulled from junkyard years ago). One difference between them is the location of the screw terminals. 9 and 3 o'clock vs 10 and 2 o'clock. What is on the 318 now is 10-2.

The 9/3 might be for slant-6? I can't see any numbers on those.

The 10/2 spares have PN 2444242 and 2495531.

In total I have 3 that are 10/2, one on the car (can't see a number on it) and 2 spares. All 3 measure primary resistance 1.6 ohms. BUT - the spares measure 11k ohms secondary, but the one on the car measures 24k. (The 10/3 coils have secondary resistance 8.5k - 10k).

So I'm asking if these coil resistances are well documented and well known, to the point of being able to say the 24k secondary reading I'm seeing is not right.

(oops - I should have filed this under electrical / ignition...)

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