Noob here with my 1973 Suburban

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Grit dog

Full Access Member
Joined
May 18, 2020
Posts
5,935
Reaction score
9,793
Location
Washington
First Name
Todd
Truck Year
1986
Truck Model
K20
Engine Size
454
Welcome !
Stunning Burb!
 

Frankenchevy

Proverbs 16:18
Joined
Jan 3, 2018
Posts
5,951
Reaction score
7,384
Location
USA
First Name
Jeremy
Truck Year
Square
Truck Model
CUCV
Engine Size
Small
Great truck!
 

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,203
Reaction score
6,172
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
If it hasn't been done already, one quick upgrade is to swap in an HEI distributor from a '75 or newer vehicle. Get the large cap version with an internal coil and only two external wires (BAT power and tach). Its an easy direct swap, and you no longer have to worry about adjusting and replacing points.
I just helped my old coworker figure out his periodic misfire on his 289 68 mustang after a 4 barrel swap and I asked if he checked his points gap after he said he set timing

he asked me what are points

I gave him a quick run down and then explained my Buick Electra HEI distributor as comparison and he said “well that’s a lot more convenient”

I asked if he owned feeler gauges and he said no and I said how to adjust /check and he asked “is there a way around that.”

he just bought an Ford performance or something HEI unit and is gonna drop it in lol

after my skidsteer killed a set of points when the coil melted I have a sour taste on them because I just figured it out and bam had to do it all again
 

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,203
Reaction score
6,172
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
Hey everybody - glad to have found this forum. I am new to the square body world though i did learn to drive on a 75 scottsdale back on the farm. But I am an adult in the suburbs now. I purchased a 73 super cheyenne suburban a couple years ago. I performed a few repairs on it that were in my wheelhouse and hired out some work too. My mechanic loves working on this old beast. She's good to go anywhere. Biggest puzzle piece is to locate the elusive rear quarter window seals. Anyhow, looking forward to sharing and discussing. see ya on the boards.

You must be registered for see images attach


You must be registered for see images attach


You must be registered for see images attach


You must be registered for see images attach
For a second I thought I saw a pic of my trailer with wheels In it lol

I have an old f100 bed in same color as a trailer
 

Dave M

Banned
Joined
Jul 30, 2019
Posts
602
Reaction score
1,305
Location
Australia
First Name
Dave
Truck Year
1976
Truck Model
C10
Engine Size
454
I just helped my old coworker figure out his periodic misfire on his 289 68 mustang after a 4 barrel swap and I asked if he checked his points gap after he said he set timing

he asked me what are points

I gave him a quick run down and then explained my Buick Electra HEI distributor as comparison and he said “well that’s a lot more convenient”

I asked if he owned feeler gauges and he said no and I said how to adjust /check and he asked “is there a way around that.”

he just bought an Ford performance or something HEI unit and is gonna drop it in lol

after my skidsteer killed a set of points when the coil melted I have a sour taste on them because I just figured it out and bam had to do it all again

Points are fine, and have served the motor industry well throughout the years. At least you can look at points and service them. Just keep the moisture out of them.
 

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,203
Reaction score
6,172
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
Points are fine, and have served the motor industry well throughout the years. At least you can look at points and service them. Just keep the moisture out of them.
I domt personally want to service them that often tho. My skidsteer that’s fine, I’m gonna install a point saver that reduces the arc across the gap to miliamps so I just gotta keep em clean

his Mustang, he didn’t seem to want to mess with anything

if I recall correctly, a new set of automotive points usually has a card that has the correct thickness
 

Turbo4whl

Supporting Member
Supporting Member
Joined
Oct 30, 2019
Posts
2,868
Reaction score
6,442
Location
Downingtown, PA
First Name
Wayne
Truck Year
1974
Truck Model
Jimmy
Engine Size
350
I just helped my old coworker figure out his periodic misfire on his 289 68 mustang after a 4 barrel swap and I asked if he checked his points gap after he said he set timing

Taylor, you have this backwards. You need to set the point gap to achieve the correct dwell first. Then you set the timing.

Every degree change in the dwell changes the engine timing by two degrees.
 

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,203
Reaction score
6,172
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
Taylor, you have this backwards. You need to set the point gap to achieve the correct dwell first. Then you set the timing.

Every degree change in the dwell changes the engine timing by two degrees.
no i didnt speak clearly. i asked him, after he had said he set his timing but also has a misfire underload even after that, if he checked his points. Because I knew that part about points :) he didnt know about the points which is my theory. with how little miles it may damn well be the original set and if it has a nylon block it may be degrading etc. personally i would have inspected and likely installed new points and gapped them and set timing and i bet the issue would be gone.

He also has a holley 4 barrel but he has no return line and i was wondering if its overpumping or not keeping up with(maybe a restriction), because he has no regulator. but i figured the timing and ignition was easiest check esp since it didnt do this with his 2 barrel and he touched the timing
 

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,203
Reaction score
6,172
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
i have a tendancy to research something as it becomes important to understand and come out having researched wayy too much. like i know a fair bit about points and condensors despite only having touched it on a 20hp kohler. i did it twice because the coil melted and killed both those after i just put new ones on lol
i also purchased a feeler gauge set with far too many dimensions and the damn thing is a foot long. I did not realize that on the amazon page until i whipped it open. quite excessive for an engine 2.5 feet wide lol
 

R Carnella

Supporting Member
Supporting Member
Joined
Sep 21, 2017
Posts
359
Reaction score
753
Location
Long island
First Name
Rich
Truck Year
1990
Truck Model
Suburban V2500
Engine Size
5.3
really sweet suburban, never let that go. welcome aboard!
 

WFO

Full Access Member
Joined
Jan 6, 2017
Posts
3,393
Reaction score
4,444
Location
Texas Panhandle
First Name
Dan
Truck Year
1986
Truck Model
K20
Engine Size
350
Welcome from the Texas Panhandle.
 

Latest posts

Forum statistics

Threads
42,035
Posts
907,817
Members
33,529
Latest member
Mickey1977
Top