Taco98

So got the rebuilt finally running and it seems to smoke a good amount under load/acceleration. The rebuilt came through toyota and was done at japan engine in the Bay Area. Not sure what's going on. Read that maybe the piston rings need to seat and will smoke some. But this seems like a lot. Also that the vavle seats may not be seated properly.

DesertToy86

What color is the smoke?
Blue=burning oil
White=possible water, does it linger for awhile?
Black?

Taco98

Smoke is blue when giving it gas and then kinda turns to gray. Engine has only been run for a half hour or so. On and off.

DesertToy86

Sounds like oil burning. Have you pulled the plugs to check to see if one is fouling out? That will isolate which cylinder/cylinders you're having a problem with

Taco98

No I have not pulled them. That's the plan for next time I get to work on it.

Taco98

So I pulled the plugs and the all seem pretty black. These were new plugs maybe 30 mins of run time. What else should I check or should I just let it run for longer. Maybe do some heat cycles.

osv

you are driving it in the truck, right? i would keep doing that, except keep a very close eye on the oil consumption.

if it's using, say, 1.5 quarts every 1,000 miles, i'd ask for a refund, or another motor.

in general, blue smoke on acceleration is rings, blue smoke when you let off the gas at speed is usually considered to be valve-related.

another thing you can do is hook up a cheap harbor freight vacuum gauge to it... weird problems with like one valve can show up on the gauge.

Taco98

So it shouldn't hurt it if it's burning a little oil right now. How long till I should expect the ring to seat?

So the vac gauge would show if It has a leak around a valve?

osv

did they install chrome rings? because chrome rings can take hundreds of miles to break in; sometimes they never break in right, there is always some blue smoke on acceleration.

if they used standard factory rings, you shouldn't be seeing much blue smoke on acceleration, because the softer metal gets that initial break-in pretty quickly.

yes, the vac gauge would show a valve that's not seating properly, it would make the needle in the gauge jump... a compression check might also show a compression loss due to a valve not seating.

if you see it with the compression gauge, try squirting fresh oil into the spark plug hole... if the compression jumps up some, it's because the oil is slowing down compression loss past the rings... if the compression doesn't change, it's a compression loss due to the valve not seating.

valve not seating shouldn't show up as blue smoke tho, because blue smoke means oil in the combustion chamber, not necessarily a loss of compression.

Taco98

Ok more to report. Drove 30moles today in the truck and it's smokes really bad. Under acceleration. It kinda get less noticeable when at 3000rpms on the highway. But if you coast in gear or sit somewhere for extended periods of time it smokes super bad when you get back on the gas.

So the engine has been running now for over an hour and driven 40ish miles.

I'll check the compression. And see if anyone has the vac gauge. (I have one of those vac brake bleeders things can I rig that up somehow. Where do you use the vac gauge

I don't know what rings they used but I will call and find out. The amount of smoke is pretty bad. Like a really smokey diesel but blue.

osv

that blue smoke doesn't sound good, i'd probably be asking for a refund or another motor.

whatever you do, don't let this issue go past the deadline for filing a chargeback with your credit card company.

Taco98

Compression test done.
Cylinder 1=110. After check all I redid 1 with a small amount of oil in the spark plug hole and it went to 115
Cylinder 2 has kinda boogerd treads so wasn't able to get the tested on it.
Cylinder3 = 110
Cylinder 4= 110

These numbers don't sound good to me. Does anyone know how long it should take for rings to set. Will be calling toyota in the morning and talking with the credit card company.

Taco98

Talked with japan engines and they are telling me to pull the dip stick with engine running and look for "steam" that would show blow by. Also they want me to check the oil pressure and see if there is oil in the pcv.

What's the best and easiest way to check oil pressure?

Rowdydudeman

those numbers seem a little low. my 22r with 127k is right around 160 across the board (dry test).

millball

If I'm reading right, you have got less than 200 miles on this new engine.
You need to give it a little chance to break in, and how you treat it now, can make a big difference in how well it breaks in, and how long it will last..
Did you run any acceleration/deceleration cycles when you first put her on the road?
Have you run it at steady speeds on the highway already??
It's not out of the question that things you have done, or not done, have affected how your new engine is doing.

This is a carburetted engine right?

Taco98

Yes it's a 22r carb engine. I understand a new engine needs time to break in but this is something wrong. Smokes like a freight train. Can't drive it because I would get pulled over for polluting. Took it to a shop today to measure oil pressure. And all is good there. He said it's for sure something internal. Broken ring or piston even.

Japan engines is shipping another rebuilt to toyota for me to pick up. A little Leary to try another motor built by the same people.

millball

They're gonna cover the costs, 100% parts and labor right??

Taco98

We're trying our best to make toyota install this one. Because we don't have time to pull and install another motor just to find out we have yet another expensive paper weight

Taco98

Well.....
Got rebuild #2 in and have driven it 60 miles. Did about 20 pulls from 20-60mph to keep it at a variable rpm to help seat the rings. Still smokes like a freight train and is burning oil. Any ideas. How long should it take to break in the engine so it doesn't smoke.


NEVER buy anything from japan engines inc. out of the Bay Area. Terrible customer service. They have refused on several occasion to let me talk to a manager!

Taco98

I have a video but can't post it online. Can email to someone to post or look at. Please help. Will talk to toyota on Monday.