Quadrajet Primary Shaft Bushings

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.

JD Miller

JD Miller

Full Access Member
Joined
Sep 30, 2024
Posts
358
Reaction score
656
Location
Goober Idaho
First Name
JD
Truck Year
1981
Truck Model
K20 silverado
Engine Size
350
hey mister said:
Heh..just fyi..
I called Cliff this morning and left a message.
He called back in about 15 minutes and we yacked almost an hour.
You can send him a plate to bush if you wish and he still sells a nice bushing kit.

So he is still kick'in it and doing well.

Here's Cliff's number I used.
740-397-2921
Click to expand...
OK thanks. I had just posted messages on his web forum hadnt called him on phone

Cliff's Quadrajet Parts and Rebuild Kits - Index

Cliff's Quadrajet Parts and Rebuild Kits - Index
cliffshighperformance.com

.
 
JD Miller

JD Miller

Full Access Member
Joined
Sep 30, 2024
Posts
358
Reaction score
656
Location
Goober Idaho
First Name
JD
Truck Year
1981
Truck Model
K20 silverado
Engine Size
350
What are you using to clean or soak you carbs for cleaning now days.

I cant justify a ultra sonic cleaner price for a couple carbs
 
hey mister

hey mister

Full Access Member
Joined
Jun 15, 2024
Posts
270
Reaction score
640
Location
North Coast
First Name
Marty
Truck Year
1978
Truck Model
C10
Engine Size
350
Years ago when I was playing with motorcycle carbs, I found a small parts washer. I have a couple gallons of Berryman carb cleaner in it.
Cleaning the 3 main body parts took most of the day.
I would let the part soak a couple hours and then hit it with a small brush, then repeat until clean.
I like Berryman because you can use paper towel to dry it off, mostly and then Dawn dish detergent and hot water cleans it right up.
 
JD Miller

JD Miller

Full Access Member
Joined
Sep 30, 2024
Posts
358
Reaction score
656
Location
Goober Idaho
First Name
JD
Truck Year
1981
Truck Model
K20 silverado
Engine Size
350
Ive always used just many cans of Crab cleaner and brushes and air compressor blow nozzle

I soaked this one in a bucket of diesel fuel for many days (got a propane heater in my shop, fire safety)and brush scrubbed for exterior gunk.

Got the base plate real clean, but still need a bunch of work time on the bowl and top. Its just real time consuming, the dreaded hardest part :thumbsdown: of rebuilding a carb, getting it real clean.
 
hey mister

hey mister

Full Access Member
Joined
Jun 15, 2024
Posts
270
Reaction score
640
Location
North Coast
First Name
Marty
Truck Year
1978
Truck Model
C10
Engine Size
350
JD Miller said:
Ive always used just many cans of Crab cleaner and brushes and air compressor blow nozzle

I soaked this one in a bucket of diesel fuel for many days (got a propane heater in my shop, fire safety)and brush scrubbed for exterior gunk.

Got the base plate real clean, but still need a bunch of work time on the bowl and top. Its just real time consuming, the dreaded hardest part :thumbsdown: of rebuilding a carb, getting it real clean.
Click to expand...
There is a method to the madness.
But I find it sorta relaxing.
 
hey mister

hey mister

Full Access Member
Joined
Jun 15, 2024
Posts
270
Reaction score
640
Location
North Coast
First Name
Marty
Truck Year
1978
Truck Model
C10
Engine Size
350
Clean and ready for bushings.
 

Attachments

  • IMG_20241209_171208_474.jpg
    IMG_20241209_171208_474.jpg
    107 KB · Views: 14
  • IMG_20241209_171241_342.jpg
    IMG_20241209_171241_342.jpg
    169.8 KB · Views: 14
  • IMG_20241209_171330_229.jpg
    IMG_20241209_171330_229.jpg
    118.6 KB · Views: 13
  • IMG_20241209_171405_026.jpg
    IMG_20241209_171405_026.jpg
    191.8 KB · Views: 12
DoubleDingo

DoubleDingo

Full Access Member
Joined
Jul 3, 2012
Posts
11,325
Reaction score
17,372
Location
Right where I am
First Name
Bagoomba
Truck Year
1981
Truck Model
81-C20 Silverado Camper Special-TH400-4.10s
Engine Size
Carb'ed Vortec 350
Following this thread. I have the original carb for my '81, and it needs a refresh along with new bushings. Thanks for posting this detailed write-up.
 
JD Miller

JD Miller

Full Access Member
Joined
Sep 30, 2024
Posts
358
Reaction score
656
Location
Goober Idaho
First Name
JD
Truck Year
1981
Truck Model
K20 silverado
Engine Size
350
hey mister said:
Clean and ready for bushings.
Click to expand...
Is that a late 60s carb? Its older style

Looks pretty clean . Mine pretty clean but, I still have black inside my venturi area of the bowl section, and some black on the inside areas of my top plate. Neither of my two have any corrosion at all.

Need to do some cans of carb cleaner spray sessions and tooth brush type plastic brush work.

Ive never used water or dawn soap , Fear of corrosion, if left to sit. Definitely have to use air compressor and heat right away to evaporate moister out of tiny passages ways
 
V

vr1967

Full Access Member
Joined
Apr 16, 2023
Posts
248
Reaction score
869
Location
Mississippi
First Name
Virgil
Truck Year
1984
Truck Model
k1500
Engine Size
6.2L turbo
You thread and use pipe plugs on the casting plugs? Or put epoxy over them?

Have bushinged many Q-jets over the years, but only one or two in the last 15 or so years.

Glad to see others still doing it.
 
JD Miller

JD Miller

Full Access Member
Joined
Sep 30, 2024
Posts
358
Reaction score
656
Location
Goober Idaho
First Name
JD
Truck Year
1981
Truck Model
K20 silverado
Engine Size
350
I wonder if a little spray oven cleaner would easily dissolve the black crude in the venturi inside areas without doing any damage?
 
hey mister

hey mister

Full Access Member
Joined
Jun 15, 2024
Posts
270
Reaction score
640
Location
North Coast
First Name
Marty
Truck Year
1978
Truck Model
C10
Engine Size
350
vr1967 said:
You thread and use pipe plugs on the casting plugs? Or put epoxy over them?

Have bushinged many Q-jets over the years, but only one or two in the last 15 or so years.

Glad to see others still doing it.
Click to expand...
If the factory plugs look intact, I don't monkey with them. If they leak, I can machine new plugs and use a polyester epoxy to seal.

My biggest challenge was to repair a snapped off vacuum port on the pass side of the carb. That's the one located behind the choke linkage.
That was fun, for sure.
 
hey mister

hey mister

Full Access Member
Joined
Jun 15, 2024
Posts
270
Reaction score
640
Location
North Coast
First Name
Marty
Truck Year
1978
Truck Model
C10
Engine Size
350
JD Miller said:
Is that a late 60s carb? Its older style

Looks pretty clean . Mine pretty clean but, I still have black inside my venturi area of the bowl section, and some black on the inside areas of my top plate. Neither of my two have any corrosion at all.

Need to do some cans of carb cleaner spray sessions and tooth brush type plastic brush work.

Ive never used water or dawn soap , Fear of corrosion, if left to sit. Definitely have to use air compressor and heat right away to evaporate moister out of tiny passages ways
Click to expand...
I use a heat gun to dry out all the moisture hiding.
But never ever spray any lube anywhere. Not even WD40. Nada!
 
JD Miller

JD Miller

Full Access Member
Joined
Sep 30, 2024
Posts
358
Reaction score
656
Location
Goober Idaho
First Name
JD
Truck Year
1981
Truck Model
K20 silverado
Engine Size
350
hey mister said:
But never ever spray any lube anywhere. Not even WD40. Nada!
Click to expand...
Why never?
Is that because of sticky goo and hard varnish residue?
Ive seen a WD40 dried varnish when wd40 dries on guns
 
hey mister

hey mister

Full Access Member
Joined
Jun 15, 2024
Posts
270
Reaction score
640
Location
North Coast
First Name
Marty
Truck Year
1978
Truck Model
C10
Engine Size
350
JD Miller said:
I wonder if a little spray oven cleaner would easily dissolve the black crude in the venturi inside areas without doing any damage?
Click to expand...
Why not just get a gal can of the carb cleaner? And while at the parts house, pick up a pack of brushes and hit the head shop and get bristled pipe cleaners.
Let it soak over night.

I think this brush kit was like $20.
 

Attachments

  • IMG_20241209_210333_909.jpg
    IMG_20241209_210333_909.jpg
    205.2 KB · Views: 7
JD Miller

JD Miller

Full Access Member
Joined
Sep 30, 2024
Posts
358
Reaction score
656
Location
Goober Idaho
First Name
JD
Truck Year
1981
Truck Model
K20 silverado
Engine Size
350
hey mister said:
Why not just get a gal can of the carb cleaner?
Click to expand...
I didnt think you can even get that stuff anymore. I live in the boonies and cant get stuff like that anyway
I heard years ago it is all environmentally safe and weak and useless. And the price is outrages

I have plenty of gun/shotgun brass/bronze brushes. But its not a good idea to use metal brushes or stainless steel brushes, rough on the carb casting and bits of wire can break off and get lodged in passages and bleed holes
 
Last edited:
You must log in or register to reply here.

Similar threads

hey mister
Quadrajet Throttle Plate Bush Service
Replies
2
Views
201
hey mister
hey mister
hey mister
Quadrajet
Replies
1
Views
228
hey mister
hey mister
G
Quadrajet Mystery and questions
Replies
13
Views
400
grummy
G
JD Miller
Jet Performance Quadrajet JET Performance anyone gotz?
2
Replies
19
Views
1K
arborvitian
arborvitian
Geoduck
Computer Control Quadrajet rebuild
2
Replies
16
Views
2K
Ricko1966
R

Latest posts

Forum statistics

Threads
44,418
Posts
957,172
Members
36,755
Latest member
square-up
Top