1989 4Runner R150F Rebuild (2 Viewers)

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Survived another road trip, this time to Yellowstone and the Grand Tetons!

I hit 275,000 miles on the way back in the town of Smoot Wyoming, just as it was starting to snow. Snow?! In October?! Sorcery! (yes, I am from California...)
Highway 89 from Jackson to Brigham City is a gorgeous drive.
I then hit 276,000 just before I rolled into the driveway.

After getting back, I replaced the transmission oil one last time. No issues, I am just being paranoid and want to make sure it's thoroughly flushed out.

It was also time for the timing belt, so new water pump, idlers, cap'n'rotor, plugs, wires, etc. I also decided to get some fresh injectors. I opted for an upgrade from Precision Auto Injectors. The fit was perfect and they sent me a hand written thank you note along with the injectors. I'll try to get it back on the dyno soon for the results!

It had been a bit since the last tuneup...

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It idles super smooth now and is noticeably quieter. It feels smoother revving up and letting off. I even had to turn the idle screw almost all of the way in. I'm guessing it needs less fuel at idle due to the better atomization from the fancy injectors.

Buuuuuuut...

None of this translates to more power. With 276k on the clock there probably is a bit of blow-by preventing any gains...
...maybe I'll build a new 3vz when I'm done building my Land Cruiser...

Time will tell if there is any fuel mileage gains. I have a smog check coming up early next year, so we'll see if there is any difference in emissions as well.
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Back in May:
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