Pre-detonation

[Red_Chili]

I tell ya this much, this is the last engine I ever rebuild. I swear I think I'm getting both an ulcer and an embolism.

Howzcum? You are letting out all the accumulated demons from the rebuild underworld, it's all good from here!

 

[Uncle Ben]

DRIVE IT! If it fails they will warranty it but just drive it! Your very poor mileage is not right! It sounds way to rich will also keep the cylinders washed and they wont seal. Spend a few bucks and take it to someone that remembers how to work on stuff without plug in diagnostics!

The idea that a Japanese-assembled Toyota 22R short block is built wrong for some reason bothers me. Whenever I've let someone else do something, it invariably has been !@#$'ed up. As a control engineering student, I worked an internship at a Toyota plant back in 1993 (the Toyoda-Gosei in Perryville, MO) and seeing how much time and effort they put into QC (what they called kaizen, a TQM philosophy) impressed me. And this was in rural southeast Missouri 15 years ago and we were just making steering wheels and air bags, I would have guessed the engine plant at the Myochi factory would have been even better. Guess you really can't really trust anyone to do anything right anymore.

 

[Uncle Ben]

Nah, the mileage drop is only because I have been pushing the gas pedal to the floor. Up until this week my mileage was pretty typical, around 18 or 19 MPG. I am running W.O.T. when starting and winding it out from every red light and stop sign, which kills my mileage. I have been running really lean and bumped the AFM 2 clicks to bring the mixture a little richer. So far it's been happier with that, no detonation in 2 weeks and it feels a little peppier on the highway.

Kewl!

 

[Red_Chili]

Hold on, don't write off UB's concerns too quickly. I know of several 22RE motors that have grenaded ring lands due to moving the AFM a couple clicks rich. A 22RE getting 4 or 5 mpg is NOT normal and if too rich WILL wash the oil off the cylinder and grenade the ring lands. No warranty. This falls into the hinky mod category.

I too understand and admire Kaizen. That's why I am a Toyota fan and interested in process control too. They wrote the book. But they will also tell you that manufacturing that is perfect is doomed to fail because a toilet seat will cost a half million dollars to produce. ANYthing is possible.

Trust.

But verify.

That too is Kaizen.

Remember, the really desirable jobs at Toyota are not making out-of-production engine blocks for a 22RE. In fact, they may have outsourced it.

You can't trust anyone to do it right? Sure you do. Every day. But there are certain things that cannot be assumed and must be verified.

You draws yer cards, you pays yer dues, you take yer chances. Part of life, don't get an embolism over it!
A man can fix it.

 

[Red_Chili]

The idea that a Japanese-assembled Toyota 22R short block is built wrong for some reason bothers me. Whenever I've let someone else do something, it invariably has been !@#$'ed up. As a control engineering student, I worked an internship at a Toyota plant back in 1993 (the Toyoda-Gosei in Perryville, MO) and seeing how much time and effort they put into QC (what they called kaizen, a TQM philosophy) impressed me. And this was in rural southeast Missouri 15 years ago and we were just making steering wheels and air bags, I would have guessed the engine plant at the Myochi factory would have been even better. Guess you really can't really trust anyone to do anything right anymore.

Just FYI, Justin told me they had a Sequoia in for oil consumption and some blue smoke. First they found a valve guide seal improperly installed, figgered that was it. He then sent me a pic of a piston and asked if I knew what was missing...

Had to squint, but it looked like a missing oil control ring.

Yup, he said. From the factory. 1200 miles on the motor. The owner was a Ford guy who was not confident in Toyota quality. I think he will not be bestpleased.

 

[Red_Chili]

I don't have the experience with new motors enough to say. Seems fishy though when I got 170 psi on Justin's 80K motor when I bought it and it was not due to carbon. I have consistently gotten 160+ at this altitude with low mileage 22REs. I think my 150K 22RE got around that, even, IIRC.

 

[Red_Chili]

Call Scott Rill at Burt Toyota. He is your bottom line. Tell him I said so too. FINE man.

 

[wesintl]

I believe it's grams per mile...