How much to repair a bent valve? - evolutionm.net
evolutionm.net - Home of the Lancer Evolution
Home Features Community Marketplace Registry Garage Store

Go Back   evolutionm.net > Lancer Evolution 1-9 Forums > Evo Engine / Turbo / Drivetrain
Sign in using an external account
Register Forgot Password?
Search


Evo Engine / Turbo / Drivetrain Everything from engine management to the best clutch and flywheel.
Sponsored by: World Racing

Welcome to EvolutionM.net!
Welcome to EvolutionM.net.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread
Old Feb 28, 2009, 12:12 PM   #1
Evolving Member
Personal Sales Rating: (0)
Garage is empty, add now
 
xphillipjrx's Avatar
 
Join Date: Jun 2003
Location: Chicago
Posts: 479

Drives: Yellow Evo VIII

How much to repair a bent valve?

I took my car to AMS last fall. They were unable to tune or flash it because the cat was not flowing properly. They said I wouldn't have full power until I got a new exhaust. I could have it tuned at that time.

I drove from Chicago to Ann Arbor about three weeks later. The exhaust backed up back to the engine, turning my exhaust manifold bright orange and making something tick within the engine. I had no power from the turbo.

I had it hauled back to Chicago on a flatbed. The tow truck driver put his hand on the engine cover and he said I likely have a bent valve. He said he races a Camaro and he once had too narrow an exhaust installed and it did the same thing.

I will soon have the dough to pay for the repairs, but I wanted a ballpark on how much it might cost. I know a new AMS exhaust is $1000. How much does it cost to repair a bent valve? I don't want to waste AMS's time by having them give me an estimate and then say "see you in a couple months when I have the money". I don't plan to bring it until I know I have $$$ enough to get it fixed.

If you've had something like this repaired or you can give me a guess please give me your .02. Thanks!
__________________
I'm not speeding, I'm qualifying!
Offline
 
Reply With Quote
Old Feb 28, 2009, 01:02 PM   #2
Evolving Member
Personal Sales Rating: (9)
2003 Mitsubishi Lancer Evolution
 
evojoe90's Avatar
 
Join Date: Feb 2009
Location: Jamison, PA
Posts: 121

Drives: Ww 03 Evo GSR

do a compression test before anything because it could be something else. if your compression is low in one or two cylinders then yea maybe bent valve...it cost me $1000 to fix two valves, check the head nd everything
__________________
MODS:
fully built 2.0
precision 3582
gsc s2
exedy twin HD
buschur race core
boomba 75mm tb
hks carbon ti catback
hks race BOV
1200cc fic injectors
sparktech cop
walbro 400 rewired
93oct KP Tuned
Offline
 
Reply With Quote
Old Feb 28, 2009, 01:18 PM   #3
Evolved Member
Personal Sales Rating: (6)
Garage is empty, add now
 
def1's Avatar
 
Join Date: Mar 2007
Location: El paso, Texas
Posts: 795

Drives: Evo

Yea do a compression test first. Hope its nothing to serious.

You probably blew your turbo though.

Why did you wait so long to buy a new cat or test pipe. I bought my test pipe for 30 dollars.
Offline
 
Reply With Quote
Old Feb 28, 2009, 01:25 PM   #4
Evolved Member
Personal Sales Rating: (79)
Garage is empty, add now
 
CO_VR4's Avatar
 
Join Date: Dec 2003
Location: Colorado
Posts: 2,035

Drives: 2003 Evo VIII

Bent valves are usually from over-revving. Burned valves can be from the circumstances you describe, though. You need to have a compression or better yet, a leak down test done. These tests will diagnose whether your valves are working normally. It could just be that you blew your turbo.
Offline
 
Reply With Quote
Old Feb 28, 2009, 01:25 PM   #5
Evolving Member
Personal Sales Rating: (9)
2003 Mitsubishi Lancer Evolution
 
evojoe90's Avatar
 
Join Date: Feb 2009
Location: Jamison, PA
Posts: 121

Drives: Ww 03 Evo GSR

is the car smoking? what color?
__________________
MODS:
fully built 2.0
precision 3582
gsc s2
exedy twin HD
buschur race core
boomba 75mm tb
hks carbon ti catback
hks race BOV
1200cc fic injectors
sparktech cop
walbro 400 rewired
93oct KP Tuned
Offline
 
Reply With Quote
Old Feb 28, 2009, 01:30 PM   #6
Evolved Member
Personal Sales Rating: (52)
Garage is empty, add now
 
Evoryder's Avatar
 
Join Date: Apr 2004
Location: ☼ Florida ☼
Posts: 7,316

Drives: EVO METH MACHINE

so he touched the engine cover and he new exactly what was wrong? Amazing... why is he working for a tow company? He has a gift
__________________
TEMEVO
"I'm addicted to 100% Methanol : ) "
FP RED + SPEED DENSITY
516WHP 468WTQ

MACHINES GONE WILD
Offline
 
Reply With Quote
Old Feb 28, 2009, 01:44 PM   #7
Evolving Member
Personal Sales Rating: (0)
Garage is empty, add now
 
xphillipjrx's Avatar
 
Join Date: Jun 2003
Location: Chicago
Posts: 479

Drives: Yellow Evo VIII

Quote:
Originally Posted by evojoe90 View Post
is the car smoking? what color?
The car was not smoking. I was following another car pretty fast on I-94 then all of a sudden I couldn't go faster than 85, then 75, then 60 and then I exited. If I can get out of AMS with a new exhaust and the other stuff repaired for +/- $3000 total then I will be pleased. Thanks for the replies.
__________________
I'm not speeding, I'm qualifying!
Offline
 
Reply With Quote
Old Feb 28, 2009, 02:22 PM   #8
Evolving Member
Personal Sales Rating: (23)
Garage is empty, add now
 
Evo9tunerz's Avatar
 
Join Date: Apr 2006
Location: Minnesota
Posts: 356

Drives: GG IX GSR

If it is a bent valve, then it should be 300-400 in labor for machining plus price for parts, assuming you pulled off the head yourself. Valves should be around 120 each valve.
__________________
11.80 @ 119 Stock turbo, block, head. Full Bolt ons, cams, and E85 @ 26 psi.
Offline
 
Reply With Quote
Old Feb 28, 2009, 02:22 PM
EvolutionM
Mitsubishi Lancer




Paid Advertisement
 
 
 
Reply


Tags
bent, car, cost, engine, evo, exhaust, fix, fixing, head, repair, test, time, truck, valve, valves

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


 









All times are GMT -7. The time now is 01:19 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
All Passwords