strange noise out of my engine Options

[Senzay]

need your help, guys,

I think of having a great problem with my engine!
probably, as a reason of low oil level, my engine started with makin´ strange noises...it sounds like a metal piece striking against another one with high frequency!
First, I thought, that the piston hits the valves when compressing!The problem seems to be in the 4th cylinder...
Is it possible, that the piston ring broke?

Really don´t know what to do!
Does anybody know, what it needs to fix it???

Thanks in advance,
kind regards...

senzay

[lagos]

make sure u have oil in there...and take your car to a mechaic. they should be able to tell you whats wrong just by hearing the sound. normally hight pitch metalic sounds are cause by exhaust leaks, but it could be more serious then tha.

[Senzay]

I´ve already been at a mechanic...they told me, that it needs to demount the whole engine block - than it would be possible to tell me something!
but, I can´t afford that big of working time, it would need to do that!

I already took down the cylinder barrier and lighted it with a probe...so, I would have been able to see the 4 valves in each cylinder and possible damages!but - there was none!
Then I started the engine and checked the compression in each cylinder with a manometre -> Same compression in each of it!
As a reason of that, I don´t think, that the piston or the piston ring are the problems!

Has anyone of you guys ever had a similar problem???

regards, senzay

[Silvan]

I'd go for pistonrods / crankshaft.

[toyotatech3]

probably a spun bearing

[Senzay]

thank you, guys!

so long, senzay

[lagos]

unless you can post of up a video of your noise, we really cant tell you what it is.