Car valve bent

[dreamZz]

Hi all sifu,

I just did a engine transplant from v6 to evo3. I did buy new timing belt set & water pump to my mechanic to change. But the day i going to pick up my car we do test drive and noted boost was only go up to 0.5 seem like can't get higher although in rpm 7K.

Upon checking, we found wastegate diaphgram leaking, then fine coz i willing to change a brand new one. But lastly when almost going home from workshop my car can't start anymore.
And my mechanic angkat head by next morning and noted 8 of the valve was bent!! then i told him are you install the timing belt correctly?? he said he did else car can't move and he claimed that the valve bent is because of the leaking wastegate....and this sound weird for me as wastegate only device which release the hot air. Any idea??

Car still in workshop but am quite worries as i spent a lot into my car already...and lot of other mistake he did to my other member car(which exchange engine with me)which i don't want to mention at time being.

ANy idea why my valve suddenly bent?? coz previously it's in good condition which was using by my fren before transplant to my car.

 

[xtremeleo]

a faulty wastegate resulting several valves bent? hahaha, how the heck is dat even possible? iam pretty sure it happened during the timing belt installation ler, marking tak betul tu. u either need new valves or, new engine head with good internals

 

[dreamZz]

ya bro, did asked few sifu..all of them claimed tht timing belt install not ngam..really sad tht met this foreman..thank for ur opinion bro..

---------- Post added at 09:52 PM ---------- 6 hour anti-bump limit - Previous post was at 09:44 PM ----------

i edy bought new valve for him to install now i wonder wil my piston condemn too sigh...

 

[punk]

his marking might be correct but scare the tension of the belt was not correct thus makes the belt jump...

---------- Post added at 01:03 AM ---------- 6 hour anti-bump limit - Previous post was at 12:42 AM ----------

check the tensioner adjustor also..last time i saw this proton club diy change timing belt evo engine if not mistaken did something on his tensioner adjuster thingy but now cant c the pic dy...

 

[dreamZz]

hi sifuss...if valve bend, will it effect the piston too?

 

[xtremeleo]

at the very least, pistons will scratch. havent met with cracked pistons caused by the same fault, it is possible ke? pistons are robust against high impact imo

 

[dreamZz]

ic...jz wonder oni..sigh... is ther anyway to check whether the timing belt marking is correct as later goin to tk car i scare tht fellow pasang timing belt not fit well..scare spoil again my valve

 

[^pomen_GTR^]

but surely the piston now got some "kissing" marks as they met the valve.

 

[dreamZz]

but surely the piston now got some "kissing" marks as they met the valve.

wil it harmful not? sigh...

 

[punk]

ur engine is 4G6series?twin cam
check this page 11A-4-6 to 11A-4-7....http://indy.pp.ru/GDI/Docs/!Motor R...BCD_ENGINE_4G6_SERIES_WORKSHOP_MANUAL_11A.pdf

u can ask him where is the timing mark..
about the bottom puley marking i not sure..might be TDC..

---------- Post added at 01:55 PM ---------- 6 hour anti-bump limit - Previous post was at 01:35 PM ----------

found another look the same -- How to: Put Your 4g63 In Time - Team-2G Mitsubishi Forum

 

[^pomen_GTR^]

is it harmfull or not depends on how severe it was...


if it just minor dent on the piston face then no worries....