Recent content by scribb

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    Approaching first start on rebuilt 2UZ with Link ECU

    Thank you for the follow up. I'm regrouping this week to figure out how far off I am from your model. I'll circle back when I have a few more answers. Thank you!
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    Approaching first start on rebuilt 2UZ with Link ECU

    Hello! Help me Obi-wan, you're my only hope! :) Here's the current status. I'm still getting a couple of sensors to add in, and haven't gotten to first start (though I've watched a couple of your videos on things like priming the oil pump...) I am indeed adding wideband sensors. I did not...
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    Approaching first start on rebuilt 2UZ with Link ECU

    Thank you, Ivan. Appreciate the feedback.
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    Approaching first start on rebuilt 2UZ with Link ECU

    Really helpful--thank you! One remaining question--I'm replacing the stock injectors. Would you recommend running the stock injectors for that initial pre-tune run-in, or not worry about it? Thanks!
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    Approaching first start on rebuilt 2UZ with Link ECU

    I've finally got my 4Runner motor back after dropping a valve on my rebuilt 2UZ. I did go with the heavier Kelford springs for the 208-B cams at Kelford's recommendation. I also added 650cc injectors and higher capacity fuel pump. I also added a Link G4X ecu and wired it in piggybacked with the...
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    Engine Failure #2; less catastrophic

    Key question--I believe stock valve springs were used, not heavy springs. Would that contribute to the issue?
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    Engine Failure #2; less catastrophic

    Here's the keeper that failed. Is this just a matter of switching to chromoly? Or does that just shift the pressure to the next weakest link? Thanks for your response!
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    Engine Failure #2; less catastrophic

    Been out of the picture for awhile after Covid sent my business for a spin and automotive activities went on a back burner. In the meantime--bad news. My 2UZ rebuild with Kelford cams seized before I got a chance to finish tuning it. Nothing dramatic--it just sounded like a stall after I started...
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    Catastrophic Failure, 2uzfe. Rebuild questions

    Got a few things to finish up. The idle is fine. But off the line is rough, unless you give it 80% or more throttle. If you try to roll it slow, it kind of bogs down, picks up, bogs down, picks up. Feels like maybe there's a feedback loop with the stock ECU reading/reacting to inputs, or not...
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    Catastrophic Failure, 2uzfe. Rebuild questions

    Got it out on the first test run! You can see the alignment is askew and there's still tape on the grill before I finish painting it. Did a bunch of other updates and mods on the truck while waiting on the engine machining. The motor is definitely strong. It still has the stock ECU, so it's...
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    Catastrophic Failure, 2uzfe. Rebuild questions

    Figured it out. It was a bad wire on the crankshaft positioning sensor. Codes clear.
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    Catastrophic Failure, 2uzfe. Rebuild questions

    I got the truck fired up today, and it sounded fine except for an exhaust leak. But I'm getting P0300 codes on one side of the motor--P0301, P0303, P0305, P0307. Is that likely to be something like a camshaft sensor, or something else that would effect one side of the motor?
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    Catastrophic Failure, 2uzfe. Rebuild questions

    Thanks for the feedback. Gloverman: I'll get the build sheets and post them for you. The engine was originally 9:1, but was built to 9.5:1, with forged internals. I got some additional suggestions from Josh at Kelford this afternoon. His suggestion for cranking up the oil pressure without...
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    Catastrophic Failure, 2uzfe. Rebuild questions

    It's been awhile. I finally got my build together. Had a bit of a delay when the Kelford cams didn't initially fit. The exhausts were fine, but the intakes were different. There's apparently a variant in the 2uz vvti head in North America that is slightly different. I'll post Kiel's comments...
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    Catastrophic Failure, 2uzfe. Rebuild questions

    Thanks. Great advice, as always.


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