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

[avalonandl]

Quick question regarding 92 octane ethanol free gas.

I buy it from a local specialty fuel place to run in all my pressure washers chainsaws weedeaters etc etc

I know it is best for all the small carbs and moving parts of fuel supply in small engines.

I am thinking about my upcoming tow of my 20 foot cargo trailer end of this summer headed back east to Ohio.

I live near Seattle so about 2 hour drive east is the Cascade mountain range I will be crossing on I-90.

My question is: Can I help my rig pull more efficiently going over the mountain pass by fueling up with the 92 octane ethanol free gas ?

I use 87 octane always from Costco. Will the higher octane rated gas give me a slight performance boost for the stressful tow up a mountain pass ??

May use the same strategy going over the Rockies.

Did Not Notice! @iamdub !!

I was chuckling the last 3 days....... sumthin I would do..... LOL

 

[gooffeyguy]

Got gas a couple days ago. Thought this was an interesting alcohol percentage.

It was previously 31% then I fueled up with about 25 gallons of 93 octane from ExxonMobil. Read about 15% right afterwards, then 12% and has finally settled on 1% for the last 2 days.

 

[Geotrash]

Got gas a couple days ago. Thought this was an interesting alcohol percentage.

It was previously 31% then I fueled up with about 25 gallons of 93 octane from ExxonMobil. Read about 15% right afterwards, then 12% and has finally settled on 1% for the last 2 days.

View attachment 399617

That's it...Imma buy me one of them BT Dieselworks things.

 

[Charlie207]

That's it...Imma buy me one of them BT Dieselworks things.

So all those stickers that say "Contains no more then 10% corn juice" are lying?

 

[Geotrash]

So all those stickers that say "Contains no more then 10% corn juice" are lying?

It's seasonal in many parts of the country.

 

[gooffeyguy]

So all those stickers that say "Contains no more then 10% corn juice" are lying?

Around here it says "May contain up to 10%"

 

[iamdub]

maybeeeeee lol

 

[iamdub]

Hey Iamdumb, I'm dumber, I did not look as closely as you!

I tend to investigate and document the not-so-common mods. So, I take pics and measurements of a lot of critical points. There will always be newbs searching for info as we all did before and still do now.

Did Not Notice the larger holes. If they were to loosen, I am guessing belt tension would pull it down, and the alternator would tend to sit down by it's own weight anyhow. I loosened the bolts, and put a prybar between case and bracket. about 2mm of movement fwiw. I don't think it will loosen.

The wider holes are to the back, so, I think once the bolts are tightened, there's more than enough clamping force to keep it from sliding. It'd actually have to twist and there's no space for that. I'm just a bit extra with some things and making those sleeves was a quick little side project. It'll be perfectly fine as-is.

Did Not Notice the alt cable was a tower bolted to the rear, but it sits fine on the tower so I think I will leave that as well.
View attachment 399536

I would've used that tower piece if I hadn't destroyed it while attempting to modify it. That D-shaped area directly under the tower is a cover. Pop it off and you'll see a stud and 10mm nut oriented horizontally like the original alt had, just annoyingly recessed.

Good Job on the install Iamdumb!

Likewise!

I think our alternators are the same.

I think so, too. GM is known for seemingly randomly changing part numbers for the exact same part. Could even be where the alt was made/sourced.

I still consider these alternators to be "drop in". Only thing really needed is the larger cable nut.

Agreed. I just get in my own way. A lot. No ragerts.

 

[iamdub]

Did Not Notice! @iamdub !!

It's okay. You're not the first. I believe you're the second.

Sometimes, I should be dumb cuz dis mouf, doe.

 

[Doubeleive]

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