76 vette die
Drifting
Joined: Jun 2025
Posts: 1,715
Likes: 597
Pay close attention to Both condition and positioning of its two fine gage wires.
As the vacuum advance articulates the pick-up coil, that coil rotates-moves a few degrees around the shaft. As it does so, those two wires Flex.
That deflection can (and has) caused problems. It can weaken and break the thin conductors And (if wires are positioned too close to dist housing) can rub through the wires' insulation and ground out and kill the pick-up coil.
*whenever R&R dist gear:
First, BEFORE beginning to R&R dist gear, pay close attention to the small dimple aka divot that's near the roll pin but on Only one side of gear. Note that gear has 13 teeth and is an uneven number (which affects positioning of gear on shaft and it's "phasing" with Rotor. Before you drive the roll pin thru gear-shaft, that dimple should be positioned in line with the Rotor's Tip. If your gear has no dimple, suggest you mark gear so it will be aligned-indexed in same manner as you found it.
Thread Starter
Intermediate
Joined: May 2024
Posts: 41
Likes: 4
From: Canada, New-Brunswick
still no spark. im gona change the rotor and the carbon button tomorrow.
Primary coil 0.06 ohms
secondary 982
ignition coil 817
Everything is in range according to my book.
Primary coil 0.06 ohms
secondary 982
ignition coil 817
Everything is in range according to my book.
Race Director
Joined: May 2006
Posts: 18,734
Likes: 2,582
With the distributor cap removed crank the engine for a couple of seconds, does the rotor move?
Thread Starter
Intermediate
Joined: May 2024
Posts: 41
Likes: 4
From: Canada, New-Brunswick
Drifting
Joined: Jun 2025
Posts: 1,715
Likes: 597
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
75 Guy,
Wouldn't that be something, if after all your parts chasing and parts swapping, and all your OHM testing, and labor,
it was the simple but often forgotten bushing spring in the cap?
By the way. They come in Low Resistance and High Resistance.
I believe you want the Low, to avoid heat buildup under the coil.
Usually comes with new rubber insulator washer too.
Wouldn't that be something, if after all your parts chasing and parts swapping, and all your OHM testing, and labor,
it was the simple but often forgotten bushing spring in the cap?
By the way. They come in Low Resistance and High Resistance.
I believe you want the Low, to avoid heat buildup under the coil.
Usually comes with new rubber insulator washer too.
Thread Starter
Intermediate
Joined: May 2024
Posts: 41
Likes: 4
From: Canada, New-Brunswick
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Drifting
Joined: Jun 2025
Posts: 1,715
Likes: 597
2. Next, you write you do not R&R pickup because ohms ARE within range (500-1500).
Maybe I do Not understand You; I am confused by your above apparently conflicting Two statements.
Maybe the wires on pickup are BAD because they have an Intermittent Open Short.
Previously, I had suggested you replace all three in unison; didn't happen.
I KNOW it's work, but suggest you R&R pickup coil and suggest you test ohms Both BEFORE And AFTER install.
Thread Starter
Intermediate
Joined: May 2024
Posts: 41
Likes: 4
From: Canada, New-Brunswick
1. At first, you write pickup tests Zero ohms and you write it should be between 500-1500 ohms.
2. Next, you write you do not R&R pickup because ohms ARE within range (500-1500).
Maybe I do Not understand You; I am confused by your above apparently conflicting Two statements.
Maybe the wires on pickup are BAD because they have an Intermittent Open Short.
Previously, I had suggested you replace all three in unison; didn't happen.
I KNOW it's work, but suggest you R&R pickup coil and suggest you test ohms Both BEFORE And AFTER install.
2. Next, you write you do not R&R pickup because ohms ARE within range (500-1500).
Maybe I do Not understand You; I am confused by your above apparently conflicting Two statements.
Maybe the wires on pickup are BAD because they have an Intermittent Open Short.
Previously, I had suggested you replace all three in unison; didn't happen.
I KNOW it's work, but suggest you R&R pickup coil and suggest you test ohms Both BEFORE And AFTER install.
Safety Car
Joined: Jan 2009
Posts: 3,873
Likes: 25
Fellas.....
Normally I hang down at p&c.
But I'll give this poor HEI a try.
Nothing more frustrating that intermittent troubles.
Only time I have IRS problems....is on april 15th.
The thing about those module brands,
If you buy an expensive one, peel the sticker off it....and it just became any brand that will sell on another name.
You get the idea. Marketing.
That's good advice to keep one in the glove box.
Back to the dist inlet voltage source.
Make a jump wire from the battery pos term and slip the other end on the HEI plus term.
Absolute power now, just like a gang banger is stealing your car.
If everything works , guess you have to look down at the starter for wires intermittent.
Back to politics and controversy . can't miss any action down there ya know.
Normally I hang down at p&c.
But I'll give this poor HEI a try.
Nothing more frustrating that intermittent troubles.
Only time I have IRS problems....is on april 15th.
The thing about those module brands,
If you buy an expensive one, peel the sticker off it....and it just became any brand that will sell on another name.
You get the idea. Marketing.
That's good advice to keep one in the glove box.
Back to the dist inlet voltage source.
Make a jump wire from the battery pos term and slip the other end on the HEI plus term.
Absolute power now, just like a gang banger is stealing your car.
If everything works , guess you have to look down at the starter for wires intermittent.
Back to politics and controversy . can't miss any action down there ya know.
Drifting
Joined: Jun 2025
Posts: 1,715
Likes: 597
Fellas.....
Normally I hang down at p&c.
But I'll give this poor HEI a try.
Nothing more frustrating that intermittent troubles.
Only time I have IRS problems....is on april 15th.
The thing about those module brands,
If you buy an expensive one, peel the sticker off it....and it just became any brand that will sell on another name.
You get the idea. Marketing.
That's good advice to keep one in the glove box.
Back to the dist inlet voltage source.
Make a jump wire from the battery pos term and slip the other end on the HEI plus term.
Absolute power now, just like a gang banger is stealing your car.
If everything works , guess you have to look down at the starter for wires intermittent.
Back to politics and controversy . can't miss any action down there ya know.
Normally I hang down at p&c.
But I'll give this poor HEI a try.
Nothing more frustrating that intermittent troubles.
Only time I have IRS problems....is on april 15th.
The thing about those module brands,
If you buy an expensive one, peel the sticker off it....and it just became any brand that will sell on another name.
You get the idea. Marketing.
That's good advice to keep one in the glove box.
Back to the dist inlet voltage source.
Make a jump wire from the battery pos term and slip the other end on the HEI plus term.
Absolute power now, just like a gang banger is stealing your car.
If everything works , guess you have to look down at the starter for wires intermittent.
Back to politics and controversy . can't miss any action down there ya know.