In my 85, what is "normal" valvetrain noise? My 16 valves didnt make any noticable noise after start up. This is my first 32 valve car I have that runs. what is normal?

 

Possible oil check valves. Page 17-10 in WSM.

 

what do they check? I drove it home yesterday a 3 hour ride, non-stop, it was still making noise when i got home.

I think I was told it has 10-50 synthetic in it. It was changed righ before the long 3000 mile drive from CA.

 

They keep the oil from draining back in cyl. head.
http://jenniskens.livedsl.nl/Technic...3/MyTip368.htm

 

are you sure it is not the injectors?

Chris

 

Good point, they definitely are louder.

 

No I am not, this is why im asking.

 

If you're just heaing a consistent faint clicking, it's probably your injectors. They are audible when the engine idles.

Matt

 

I dunno, Im not to green at this anymore.. it sounds like valve noise...

 

injectors are more tick tick tick.. this is click click click

 

Put your hand on fuel rail when running. If clicking noise is somewhat consistent with pulse of rail, its injectors. Does noise change with rpm ?

 

The drain back vavle is only there to keep the oil in the heads when the engine is not runnig. Since your is making noise all the time, I would guess that its at least one or more hydraulic lifter not keeping pressure.

 

yes and it also seems to have a rythum with the exhaust. as strange as that sounds

 

Magic mystery oil

 

Do you mean Marvel?? if so or even if not please explain...