What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[Rocket Man]

I want a shed to work on my own things. And be left alone For my suburban.


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I’m gonna be building a small shop in my backyard this spring. I need a place to build a bagged C10 in.

 

[Just Fishing]

More power to you. I did all my work and that abs module and brake line junction setup behind the drivers seat is a cluster ****. I’ll never do it again.

yes the L83. The tpi version. Not prone to the Optispark mess on the lt1/4.

It was too tight and annoying to work on. Needed so much. I inherited it and tried so hard to make it work. Couldn’t do it. Needed everything. Got what I put into back when I sold it tho. So it was a good experience and broke even. Never again tho. My fave is the c2 followed by the c5/6.

My C4 does not have ABS.
Something i remind my self of every time i get in the car.
I usually repeat it several times as i warm up the engine.

Massive brakes = need to think about the brake pedal.

Opti Spark, yeah i heard about some of the PITA around that.
And that you need to be VERY selective when buying parts.

 

[08z71bgm]

Im

I’m gonna be building a small shop in my backyard this spring. I need a place to build a bagged C10 in.

Wish I had more land to do that. I don’t even have a garage.

 

[08z71bgm]

My C4 does not have ABS.
Something i remind my self of every time i get in the car.
I usually repeat it several times as i warm up the engine.

Massive brakes = need to think about the brake pedal.

Opti Spark, yeah i heard about some of the PITA around that.
And that you need to be VERY selective when buying parts.

That’s why you enjoy it! If you had to run all the brake lines to the inside cabin cubby hole behind the driver seat with a rubber flat gasket to mount to the abs pump/module you would set the car on fire yourself. Worst design ever!

 

[Just Fishing]

That’s why you enjoy it! If you had to run all the brake lines to the inside cabin cubby hole behind the driver seat with a rubber flat gasket to mount to the abs pump/module you would set the car on fire yourself. Worst design ever!

I would probably delete it and run new lines.

 

[08z71bgm]

I would probably delete it and run new lines.

It’s integrated into the dash and computer and would have lights on all over the place. I was going to repair it to keep it until I started running the lines there. It’s a nightmare. I did enjoy the test ride when I finished it but not enough to keep it. I needed another 5-7k to get it near perfect and enjoy it without any headaches. Not worth it for what those cars go for when they are already near perfect.

 

[Just Fishing]

It’s integrated into the dash and computer and would have lights on all over the place. I was going to repair it to keep it until I started running the lines there. It’s a nightmare. I did enjoy the test ride when I finished it but not enough to keep it. I needed another 5-7k to get it near perfect and enjoy it without any headaches. Not worth it for what those cars go for when they are already near perfect.

Yeah i like how my C4 is so basic.
the EBL unit gives me control over most of the systems...

The real selling feature was the age, had just turned 31 years old when i bought it.
And in my state that = Antique/Collector car status!

 

[08z71bgm]

Yeah i like how my C4 is so basic.
the EBL unit gives me control over most of the systems...

The real selling feature was the age, had just turned 31 years old when i bought it.
And in my state that = Antique/Collector car status!

Jeez 31 is the year for classic in your state? 25 here.

 

[Just Fishing]

Jeez 31 is the year for classic in your state? 25 here.

30, but yup...
@ 40 it they wave a fee or two...

 

[Just Fishing]

got the rockers installed, primed the engine with oil
Was dumb luck that i had the clear tube, but that made it very handy...

got a nice even flow from each rocker, did most of the priming @ 50 psi air, but needed to raise to 110psi to get all of the lifters flowing oil.

getting closer!

 

[Just Fishing]

also doing the trunnion upgrade kit on the rockers, got a nice flow going in the end.
I have a press so it made it extra handy.

clips on the ends almost seem redundant due to the design change of the captured bearings.
Meh, hopefully i did i right...

 

[iamdub]

got the rockers installed, primed the engine with oil
Was dumb luck that i had the clear tube, but that made it very handy...

got a nice even flow from each rocker, did most of the priming @ 50 psi air, but needed to raise to 110psi to get all of the lifters flowing oil.

getting closer!

It's always taken me a good while to get oil flowing from all rockers. I don't know if turning the crank while pushing the oil in helps or hinders how quickly it gets there, but I'd rather turn it a lot in both directions to ensure EVERYTHING is oiled. With my setup, 90psi inlet pressure was good for about 45psi in the engine.

 

[Just Fishing]

I did some rotating while priming.
Seemed to help some.
when cranking down the rockers at tdc, it felt like my lifters were a little locked as well.

First time i have ever presoaked lifters, last time I dunked them in oil real quick, and then dropped them in...
when empty it's nice to feel the lifters compress, this time around i just saw the valves compress...

I'll check them with a compression gauge later to be 100% sure...

 

[iamdub]

I did some rotating while priming.
Seemed to help some.
when cranking down the rockers at tdc, it felt like my lifters were a little locked as well.

First time i have ever presoaked lifters, last time I dunked them in oil real quick, and then dropped them in...
when empty it's nice to feel the lifters compress, this time around i just saw the valves compress...

I'll check them with a compression gauge later to be 100% sure...

After priming the oil and fuel systems and you turn the key for that first start and it fires up immediately and quietly like it was never torn apart:

 

[kbuskill]

New radiator arrived today... wasn't scheduled to deliver until Monday... Fed Ex finally got it right for a change... lol

More pics here...
https://www.tahoeyukonforum.com/thr...rb-ltz-mod-thread.100141/page-83#post-1524318

 

[gooffeyguy]

New radiator arrived today... wasn't scheduled to deliver until Monday... Fed Ex finally got it right for a change... lol

View attachment 266491

More pics here...
https://www.tahoeyukonforum.com/thr...rb-ltz-mod-thread.100141/page-83#post-1524318

Cool!

lol

Actually never heard of them, but looks like a nice radiator.

Are you having cooling problems, or just needing to replace the radiator and decided to go bigger/aftermarket while at it?

 

[Rocket Man]

New radiator arrived today... wasn't scheduled to deliver until Monday... Fed Ex finally got it right for a change... lol

View attachment 266491

More pics here...
https://www.tahoeyukonforum.com/thr...rb-ltz-mod-thread.100141/page-83#post-1524318

Just curious- what did that run you? Close to the Mishimoto price?

 

[Just Fishing]

got the intake on!

it was full of oil...
lots of oil.

made a mess when i picked it up.
Let it drain for a bit, then took it outside to the back corner of the yard with a can of gas.
Rinsed that baby out the best i could...
stunk up the garage, i think i went cross-eyed for a bit...


once oil finally stopped leaking out i cleaned it up pretty good, removed the map sensor (Doh!) and cleaned it...

Nearly ready to run this pig!

 

[wjburken]

got the intake on!

it was full of oil...
lots of oil.

made a mess when i picked it up.
Let it drain for a bit, then took it outside to the back corner of the yard with a can of gas.
Rinsed that baby out the best i could...
stunk up the garage, i think i went cross-eyed for a bit...


once oil finally stopped leaking out i cleaned it up pretty good, removed the map sensor (Doh!) and cleaned it...

Nearly ready to run this pig!

I was surprised at how much oil was in the intake on my ‘07 when I took it off the first time. Made a mess on my garage floor.

If you think you might have gotten straight gas on the MAP sensor, might want to think about getting a new one as they can be sensitive to some solvents. Might be overly cautious, but would hate to have it send you down a rabbit trail later if it’s compromised.

 

[gooffeyguy]

got the intake on!

it was full of oil...
lots of oil.

Good thing you're installing a catch can! Keep all that oil out of there!



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