What have you done to your square lately??

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.

Doppleganger

Full Access Member
Joined
May 24, 2019
Posts
12,654
Reaction score
58,628
Location
OH-MI: Just like it sounds
First Name
Chris
Truck Year
1985
Truck Model
K20
Engine Size
5.7
This must be for a different truck than the one you’re restoring?
Nope. Same one. The guy who rebuilt my axles drives an 87 burb so we tested it on his. No noise and very smooth.
 
Last edited:

82sbshortbed

Fuckemall!!
Joined
Mar 1, 2018
Posts
15,766
Reaction score
52,910
Location
SE Texas
First Name
Doug
Truck Year
1982, 1984
Truck Model
1500 shortbed, 1500 longbed
Engine Size
454, 305
Well I was able to get the 84 started today by spraying ether in the carb. But it would not idle if I let off the gas. So I cranked the idle screw in all the way and let it warm up. As it did I had to turn it back out. While doing that I noticed the alternator belt was lose and that was the cause of the volt Meyer fluctuation. So tightened it but still seems to wiggle a lot but it's tight.

I think the edelbrock carb is crap. I've never liked them because mine have always sucked. Think I might put a quadrajet on it instead. If it sits for a little while it's hard to start and keep idling. Here's a couple of videos of the problems.

xc_hide_links_from_guests_guests_error_hide_media
Before it turned the idle screw in all the way

xc_hide_links_from_guests_guests_error_hide_media
Still warming up rpms up and down

xc_hide_links_from_guests_guests_error_hide_media

After I tightened the belt
 

JamesSam

Full Access Member
Joined
Feb 15, 2023
Posts
1,587
Reaction score
4,343
Location
VA
First Name
Sam
Truck Year
1987
Truck Model
Silverado V10
Engine Size
5.7 L 350 v8
Drove it Tuesday, yesterday after work (Friday), and today( Saturday). Loving the time in the truck. Taking the kids to swim practice, returning things to the sporting goods and hardware stores, getting dinner, trip to the big box hardware store with the other half today for Christmas decor and new front storm door for the house. I even figured out a trick to get the passenger power door lock to unlock when it decides it doesn't want to.
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
30,385
Reaction score
28,156
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
Do the magnaflow straight through mufflers count as glasspacks? If so, I've had them on my truck for a decade and love them. The sound matches the era of these trucks so well.

The larger body of the Magnaflow and the perforated tube (as opposed to the louvered core) give the Magnaflow a much more mild sound.
 

Redfish

Full Access Member
Joined
Nov 6, 2021
Posts
2,623
Reaction score
14,161
Location
Prairieville, LA
First Name
Andrew
Truck Year
1987
Truck Model
V1500
Engine Size
350/5.7
The larger body of the Magnaflow and the perforated tube (as opposed to the louvered core) give the Magnaflow a much more mild sound.
I have dual Magnaflows on The '87 and they sound very similar to the Thrush Turbo Mufflers we had on Dad's '77 GMC back in the very early '80s. I don't love them but I do like them.
 

BRetty

Full Access Member
Joined
Jul 16, 2020
Posts
908
Reaction score
2,534
Location
Los Angeles
First Name
Franklin
Truck Year
1973
Truck Model
c10
Engine Size
350
I'm going to try installing my valve covers and gaskets correctly this time. Then I plan to remove a few spark plugs and inspect them to see if I'm getting detonation or some bad misfire at speed.

Do I need to use anti-seize when I re-install them, or will they seat just fine back in the iron head?

SHould probably check the cap and rotoe as well. Maybe I can get to the distributor hold-down and dial back my timing a little....
 

Grit dog

Full Access Member
Joined
May 18, 2020
Posts
6,926
Reaction score
12,139
Location
Auburn, Washington
First Name
Todd
Truck Year
1986, 1977
Truck Model
K20, C10
Engine Size
454, 350
I'm going to try installing my valve covers and gaskets correctly this time. Then I plan to remove a few spark plugs and inspect them to see if I'm getting detonation or some bad misfire at speed.

Do I need to use anti-seize when I re-install them, or will they seat just fine back in the iron head?

SHould probably check the cap and rotoe as well. Maybe I can get to the distributor hold-down and dial back my timing a little....
Anti seize won’t hurt but wholly unnecessary in your scenario.
 

jensmae

Junior Member
Joined
Sep 23, 2024
Posts
2
Reaction score
36
Location
Holland
First Name
Erik
Truck Year
1976
Truck Model
C10 Cheyenne
Engine Size
350
Finished the engine dress-up for 95%.

It all started with a leaky freeze plug replacement and then I got a bit excited.

You must be registered for see images attach
 

JamesSam

Full Access Member
Joined
Feb 15, 2023
Posts
1,587
Reaction score
4,343
Location
VA
First Name
Sam
Truck Year
1987
Truck Model
Silverado V10
Engine Size
5.7 L 350 v8
Was listening to the engine while parking at the store today and habitually stepped down on the parking break...which I avoid in the truck. When the parking break is engaged in my truck after it is released the pedal drops back down and lifts the mechanism that turns on the e break light on the dash even though it is fully released. I have figured out how to get this remedied before but cannot remember what I did. The pedal seems to need tightening at the spot where it pivots from full release to full engaged. Does anyone have a fix for this? I do not believe my e break line is out of wack as it does work. I just think the pedal needs adjustment in the cab and I cannot quite figure out how to tighten the pivot point with two large phillips/flathead on each side.
 

Truck82

Member
Joined
Nov 2, 2024
Posts
54
Reaction score
106
Location
Alderton
First Name
Christopher
Truck Year
1982
Truck Model
c20
Engine Size
350
Finished the engine dress-up for 95%.

It all started with a leaky freeze plug replacement and then I got a bit excited.

You must be registered for see images attach
That looks awesome!
 

Camar068

Supporting Member
Supporting Member
Joined
Feb 5, 2014
Posts
4,291
Reaction score
3,335
Location
Kentucky
First Name
David
Truck Year
1986
Truck Model
K10/LM7 5.3/4L60e/np208/3.73/32"
Engine Size
10 yrs Air Force
I’ve been working in the dark trying to make a new exhaust system. The old one just didn’t settle with me and I’ve wanted glasspacks for awhile. Finally got my spark plug wires in the right location and got the truck running again. Gave my truck its first tattoo…
You must be registered for see images attach
You must be registered for see images attach

You must be registered for see images attach
In the 90's my camaro had cherry bombs. Believe it or not...they weren't that loud until higher rpms

Recently I had 2 thrush glasspacks put on (long ones) and it was just too loud...I knew within 25 ft of taking off. I'm guessing that I got a different brand in the 90's, but they didn't get loud until you got into higher rpm's.

lol in '95 they were red and sold for ~$10 each at parts stores left and right. Wish I knew what brand it was. Then again, could it have been straight out the back exhaust instead of out the side (truck) is why I didn't hear it?
 

Ron Sebastian

Full Access Member
Joined
Nov 8, 2018
Posts
267
Reaction score
287
Location
Vero Beach
First Name
Ron
Truck Year
1987
Truck Model
Custom Deluxe V10
Engine Size
350

Attachments

  • IMG_20241108_135033737.jpg
    IMG_20241108_135033737.jpg
    283.2 KB · Views: 12
  • IMG_20241108_135046548.jpg
    IMG_20241108_135046548.jpg
    294.4 KB · Views: 13

JamesSam

Full Access Member
Joined
Feb 15, 2023
Posts
1,587
Reaction score
4,343
Location
VA
First Name
Sam
Truck Year
1987
Truck Model
Silverado V10
Engine Size
5.7 L 350 v8
So to start, I will say that I believe when a passenger tries to open the passenger door while it is locked, is the main contributor to the lock eventually not wanting to operate and release from locked. Now, pressing the door shut with strong force then pressing the unlock direction on the passenger door switch (with window down) and pulling up on the lock knob at the same time seems to persuade it to open. After the last successful time doing this trick(yesterday), no reverting back to stuck in lock mode.
 

Forum statistics

Threads
44,052
Posts
948,439
Members
36,119
Latest member
noturmom06
Top