4A-GE valve stem seals

[AE85.6]

hmm ye valve stem seals i think, my AE92 levin used to do that exact same thing, only ever blew smoke on some starts never when reving or anything just everynow and then first start after it had been sitting and it would puff a little bit of blue/white smoke.

im pretty sure ive read a topic that started overing it but i think it was quite old so you might have to do a search if not thou someone will be able to tell you the details,

i did notice thou on my old levin it did it more often if the oil was shyte so i used to change it a bit more often too, i guess as the oil turns crap and looses it viscousity properties or thins out more it must seap through a bit easier

[Dr-X]

Yep definately sounds like stem seals. My car does the same (3sfe). Nothing to worry about really, definately not worth the money to repalce them.

[demis]

you have to take the head off to replace them dont you???

[jjd]

you have to take the head off to replace them

no you dont.

[vvega]

normall you do have to take the head off
you can do it without but it requires some very specaillized tools
or a whole lot of patiance

you need to take the valve spring out and replace a seal that presses onto the valve guide itself
then reasemble the spring/retainer asemebly and put the cams bak in and your done

its not hard

v

[CAMB01]

If you do it in place make sure you have the piston at TDC on the cylinder your doing. Otherwise you'll have to pull the head off as the valve will fall into the cylinder.

[vvega]

or you can presurise the cylander and use the specail tool

v

[gordon77]

would this special tool be specific to toyotas?

[Monsterbishi]

It is for the 4AGE, due to the layout of the head.