68 GMC 4x4 Suburban build up

[68SWB4x4]

My door handle broke and I fixed it...

Door Handle Fix

Fixed my turn signals and hazards turns out it was a few things.

Bad flashers, the brown wire for the turn signals has been poorly patched at one point and was loose and the hazard button was sticking and wouldn't pop back out causing the turn signals to not work...

Fixed all that and been driving it to the store and around town. Really enjoying it and ironing out all the little things that keep coming up as expected for a truck that hasn't drove on public roads in a few decades.

I also finally found the right PCV valve grommet on I believe the 5th try.

Doorman part # 42052 for those interested

[68SWB4x4]

first "highway" shakedown

Still popping at low rpm but I have a list of things to check today that hopefully fix this. It also has some exhaust soot on the front of the engine and I think the bolts are loose...

So I will be tightening everything, exhaust, intake, carb bolts, etc

using smoke test to check for vacuum leaks

rechecking timing

I also badly need to get an alignment

but hey at least it looks good.

[68SWB4x4]

figured out the stumble at low rpm

it wasn't getting enough fuel as the PO installed a inline fuel filter and it still had the filter in the Qjet which looked... Old

took that out and it seems like the Horsepower doubled.

Still some pop and hesitation as I need to tune it some more now.

Took it get aligned and now I can drive down the road straight but there is still a lot of play in the steering wheel so I have to chase down whats worn out.

I am going to start with adjusting the steering box as it seems to have some play there.

Also saw a K20 suburban down the street from the tire shop when taking it there had to get a picture

[LockDoc]

Originally Posted by 68SWB4x4

figured out the stumble at low rpm

it wasn't getting enough fuel as the PO installed a inline fuel filter and it still had the filter in the Qjet which looked... Old

took that out and it seems like the Horsepower doubled.

Still some pop and hesitation as I need to tune it some more now.

Took it get aligned and now I can drive down the road straight but there is still a lot of play in the steering wheel so I have to chase down whats worn out.

I am going to start with adjusting the steering box as it seems to have some play there.

Also saw a K20 suburban down the street from the tire shop when taking it there had to get a picture

I would put a new filter back in the carb inlet. They catch a lot of fine gritty contaminants that the inline filters don't. I'm sure it was just plugged up.

I don't know how familiar you are with adjusting steering boxes but if you do try to adjust it do not adjust the set screw more than a quarter turn at a time and try it. If you tighten it up too much the steering may lock up when you turn a corner and you will not be able to straighten it back out. Years ago I went through a fence and almost hit a tree because I adjusted the set screw too tight. Just a heads up.....

LockDoc

[68SWB4x4]

Appreciate the heads up

I’ve been searching this forum like I have any topic on these trucks before I do it for the last 18 years. I read similar so I’ll be careful with it.

Good chance the box and other parts are just worn out...

Going to it’s first show on Saturday so I’m not going to do anything too drastic in the next two days as it’s good enough to drive there as is.