Amskeptic

There is some subtlety involved in determining what and where a noise is coming from. A tick that gets louder when you put a load on the engine does point you towards exhaust items like the EGR pipe. A rod knock will get louder with higher engine speed, and actually likes to do the rattlesnake rattle when you lift off the accelerator at high engine speed. Excessive valve clearance is consistent and usually gets drowned out by high rpm. This drilled-out-lifter-pad noise had a very specific symptom designed to drive you crazy: it goes away entirely then just as suddenly comes back. Whenever the lifter bucket would "glue" itself to the valve, the noise would be gone. You'd be standing there staring down saying to the engine, can't you just sound like that all the time? and then suddenly taptaptaptap would come back. . . then go away again.
Colin

sam12345

iTrader: (1)

I hear the tick tick only when I am at a drive thru where the wall amplifies the noise and I have my window down. Mine is a '92. Probably normal. Is the statement that if the injectors are clean they make no noise true? My car runs very well and I get 18 MPG in city and 27 on the highway

JAndersson

Accordning to python earlier in this post:
"clean injectors will tick, dirty injectors are silent"

Sounds logical to me. So your injectors are probably clean.

sam12345

iTrader: (1)

oh ok, I read it wrong. so mine are ok.

michael69

normal. i was told its the injectors

KMinAF

I have to say that I am a little disapointed that I would have to go through and adjust the valves after only 188000 miles. I have done this procedure when building a 7MGTE / 7MGE engines or after having the valves ground but never due to wear. Even all of those Corollas running around out there with the same bucket/shim set up are quieter and with more miles than my LS400.
Sorry, just had to vent.

Can anyone for certain tell me why? Are the valve seats retreating into the head? If the valves were wearing then I would think you would have more instances of burned valves. If the cam lobes/shims were wearing then I would think you would have more failures due to flat cams.

PureDrifter

iTrader: (10)

lol, only 188k miles.

go do some research into the TYPES of valvetrain configuration used by those old corollas and the 7M-g(t)e has similar valvetrain click on occasion.

KMinAF

For having 188k miles it really has been a great car. The key I found is to address the problem as soon as it happens instead of waiting until disaster strikes.

midwest2

I know "sixdown" kind of thread jacked here, but since it's old I'd like to ask if anyone has an answer for the creak/ticking he described in his second paragraph? I have the same condition, when I rev the engine I get this noise as the rpm's come back down. It's coming from the front of the engine as if it is the fan or a tensioner.

Twista4004

Let's revisit this thread.


So if rhetoric is that this is normal; did these engines sound like this when they were released from factory? I'm sure being that it's 20 years later there is a difference but how to get it as close to factory as possible? I took note of the pictures and diagram posted earlier in the thread so as to give it a shot tomorrow but is it definitive?

DrifterJ

Thanks for the helpful post lol. it too put me at ease. Ive heard a slight tick, but now i know im not the only one!

Lavrishevo

iTrader: (1)

I can hear my injectors at the drive through or similar. When the sound is bouncing off the wall and the window is down. I think many people are confusing injector ticking vs valve slap. It's a waste of money to pay for a valve adjustment until you starting hearing real valve noise. Need to listen for it at the cover. Plus, the knock sensor code would be activated.

http://www.northerntool.com/shop/too...FZNj7AodvmoAIg

johnnyg66

Now that sound would worry me. My 92 has some very minor tick most what i hear is a bearing on a pulley sounding off once and awhile. But even that is very minor don't even hear it with hood down.

LScowboyLS

the sound on that video is no valve tick at all, that is more along the lines of a rod knocking, or if it is a valve, it is a valve hitting a piston!

whoever owns the car in that video needs to be checking out the latest auto-trader issue, or else ebay, that car won't be running in 6 months

DrifterJ

If i'm not mistaken, isn't the U1ZFE a non interference motor?