anyone ever damage an intake valve on a b5 S4.... fawk

[brax]

anyone ever damage an intake valve? dont know how i did it, i ran a comp test and got 50psi in the left front cylinder "the only one misfire'n"

did a leak down and its leaking through the intake, so i am guess'n maybe i over rev'd and nicked / damaged a valve? burnt maybe? broken spring?

anyways, it smokes sometimes out the exhaust pretty heavy, usualy after i boost it good or drive for awhile then come to a stop, i thought i had blown a turbo but i guess not,

anyways if you guys have any ideas or advice that would be great, the motor idlles quiet like it should, no ticking or anything,

i am about to go stage 3 and yank the motor.... just wondered if this was common, i cant find any similar posts on audiworld..

[Das General]

Probably just a bad headgasket.

[brax]

hg cant leak into the intake during a leak down :o( i will post pics when i yank it out :(

[BlackS4TT(Josh)]

Its prob cause of that ghetto timing belt service you did ;) Check if your cam gears and crank line up properly.

[brax]

lol josh, that t belt job was 20k miles ago :) i will check it though... :oP

[Das General]

hg cant leak into the intake during a leak down :o( i will post pics when i yank it out :(

I power read the thread, saw smoke, bad compression. lol anyways.

I have a set of 2.7 heads without damage, if you need them.

[BurnAll4S4]

i have 2.7 heads complete for cheaper than him!

[brax]

lol hopefully i wont need heads.... we shall see!

[Unispeed]

so how do you find out if you have a bent valve or a leaky valve? I've always wondered this about my car... also, how would you pinpoint wich valve it is with the heads still mounted...

[chris.mcneal]

Good friend of mine over revved his motor and went stage 3 at the same time:

http://forums.vwvortex.com/zerothread?id=3207539

Check it!

[ThirdStrike]

anyone ever damage an intake valve?

nope

finding a damaged valve is kinda easy.
1) do a compression test
2) find the low cylinder
3) pull the motor
4) pull the head with a low cylinder :-P

[brax]

yeah i did a leak down to shoe the fault, thanks for the replys guys, i will report back oncei rip it apart

[Big Boost]

Is the engine still running? My timing belt shredded and caused the pistons to hit the valves bending each middle intake valve on bank 2. I replaced the bent valves and ended up doing the full Stage 3 because the heads were off and the turbos were accessible from on top.

[brax]

yeah i have full stage 3 parts waiting to go on, i originally thought i had a blown turbo,

t belt was replaced 17k or so ago, car runs fine