Go Back  EvolutionM - Mitsubishi Lancer and Lancer Evolution Community > Lancer Evolution 1-9 Forums > Evo General
Reload this Page >

Not even a shop knows what's wrong with my car 😔😔😔😔

Notices
Evo General Discuss any generalized technical Evo related topics that may not fit into the other forums. Please do not post tech and rumor threads here.
Sponsored by: RavSpec - JDM Wheels Central

Not even a shop knows what's wrong with my car 😔😔😔😔

 
Old Mar 20, 2017, 09:00 PM
  #1  
Evolving Member
Thread Starter
iTrader: (6)
 
benIX's Avatar
 
Join Date: May 2012
Location: california
Posts: 239
Received 1 Like on 1 Post
Not even a shop knows what's wrong with my car 😔😔😔😔

Hello members,
I am really hoping someone can help me out here. I went to a shop today because I'm having issues with my mew 2.4 Evo 9 built. Little info on the built.
Long Rod 2.4 with wisco pistons, Manley TT rods, GSC s2 cams, GSC standard valves, GSC springs and retainers, kiggley HLA. Now on to the problem. My car runs on 2 cylinder when it's on. The timing is dead on. The weird part is when they did a leak down test on a brand new motor I had around 4 to 5% leak. When they do a compression test cylinder 1 gets 10 psi of compression and cylinder 4 gets 0. I know it's not bent valves or bad rings because the leak down proved they are ok. What can cause a motor to have such a good leak down and such a bad compression? Me and the shop are seriously lost. Anybody has any info to help me out? I don't now what else to do. All the help is greatly appreciate it. Thank everyone in advance 👍🏻👍🏻👍🏻👍🏻👍🏻
benIX is offline  
Old Mar 20, 2017, 11:42 PM
  #2  
Account Disabled
 
Join Date: Mar 2013
Location: in a garage
Posts: 714
Received 21 Likes on 20 Posts
You'll know when you pull it all apart.

Then you can put it back together again but properly.
RightSaid fred is offline  
Old Mar 21, 2017, 12:45 AM
  #3  
Evolved Member
 
barneyb's Avatar
 
Join Date: Jun 2006
Location: Grand Island, NE
Posts: 6,661
Received 116 Likes on 107 Posts
Well, you know which test is right since it is running on two cylinders.
barneyb is offline  
Old Mar 21, 2017, 01:24 AM
  #4  
Account Disabled
 
Join Date: Mar 2013
Location: in a garage
Posts: 714
Received 21 Likes on 20 Posts
What would happen if all 4 rockers fell off on one cylinder?
Why would they do that?
Reground cams and no shims.

Not that you're going to loose 4 rockers but has anyone looked?
RightSaid fred is offline  
Old Mar 21, 2017, 10:19 AM
  #5  
Evolving Member
Thread Starter
iTrader: (6)
 
benIX's Avatar
 
Join Date: May 2012
Location: california
Posts: 239
Received 1 Like on 1 Post
Originally Posted by RightSaid fred View Post
What would happen if all 4 rockers fell off on one cylinder?
Why would they do that?
Reground cams and no shims.

Not that you're going to loose 4 rockers but has anyone looked?
My engine has 5 min of run time on it. I just put it back in the car to break it in. I toon it to a very reputable shop here in California but they were as puzzled as I am. Another weird thing is, before I took it to the shop I bled the lifters and did a compression test and I got 120 across the board. Once the lifters fill up with oil that's when I start losing compression. Any thoughts? I need to get my car back up running this is very flustrating. Thanks in advance
benIX is offline  
Old Mar 21, 2017, 03:48 PM
  #6  
Evolved Member
iTrader: (17)
 
hutch959's Avatar
 
Join Date: Nov 2004
Location: Chattanooga, TN
Posts: 850
Received 34 Likes on 33 Posts
what kind of lifters?
hutch959 is offline  
Old Mar 21, 2017, 10:20 PM
  #7  
Evolving Member
Thread Starter
iTrader: (6)
 
benIX's Avatar
 
Join Date: May 2012
Location: california
Posts: 239
Received 1 Like on 1 Post
Originally Posted by hutch959 View Post
what kind of lifters?
Oem
benIX is offline  
Old Mar 22, 2017, 06:26 AM
  #8  
Evolving Member
iTrader: (1)
 
Join Date: Feb 2016
Location: Greenwood
Posts: 294
Likes: 0
Received 28 Likes on 25 Posts
So you had good compression, but then after running the engine the lifters expanded and now you have little to no compression on two cylinders. Sounds like something doesn't fit quite right between the cam and valve seat.

Maybe re-do the compression tests and triple check that you are at TDC on the compression stroke for each cylinder's test, putting your thumb gently over the sparkplug hole you should hear the air hiss as it gets pushed out around your thumb while rotating the crank to TDC.

If it still has bad compression, time to pull the valve cover and start checking clearances.
Epyon is offline  
Old Mar 22, 2017, 06:29 AM
  #9  
Evolving Member
iTrader: (8)
 
Join Date: Mar 2007
Location: Huntsville, AL
Posts: 352
Received 12 Likes on 10 Posts
Has anyone looked under the valve cover?
XSivPSI is offline  
Old Mar 22, 2017, 10:59 AM
  #10  
Evolved Member
iTrader: (3)
 
Join Date: Jan 2009
Location: Columbus, Ohio
Posts: 1,191
Received 4 Likes on 4 Posts
I would say the best bet would be to pull the head.
thepoint4life23 is offline  
Old Mar 23, 2017, 12:52 AM
  #11  
Evolving Member
Thread Starter
iTrader: (6)
 
benIX's Avatar
 
Join Date: May 2012
Location: california
Posts: 239
Received 1 Like on 1 Post
Yes the valve cover was removed and everything was inspected. The cams were also removed and inspected. The shop could not tell what the problem was. Again this a " well known Evo shop" in California. I called few shops and I was told that it could either be bad lifters or the valve hight was not set properly. I did an engine built and also replaced the valve and guides. But again what's puzzling is that I get really good compression when the lifters are bled 120 on all 4 cylinders. I will try some more diognostics to see what The exact problem is. I'm just trying to avoid pulling the head but if I have to that would be the last resort.
benIX is offline  
Old Mar 23, 2017, 02:55 PM
  #12  
Newbie
iTrader: (1)
 
Join Date: Jul 2009
Location: Idaho
Posts: 53
Received 1 Like on 1 Post
This is what happened to me when my car ran on 2 cylinders. My driver side spark plug wires before the coil pack plugs had gotten brittle from age and 1 of the wires broke under the factor wire protection sheath. I fixed it up properly and it's been working great 4cyl since.

This wouldn't answer your lack of compersion...but thought I'd share.
Acuality is offline  
Old Mar 23, 2017, 03:02 PM
  #13  
Evolved Member
 
barneyb's Avatar
 
Join Date: Jun 2006
Location: Grand Island, NE
Posts: 6,661
Received 116 Likes on 107 Posts
Let us know what you find. My guess would be some blunder at the machine shop or faulty parts. Maybe measure the installed height of the valves.
barneyb is offline  
Old Mar 24, 2017, 06:57 AM
  #14  
Evolving Member
iTrader: (1)
 
Join Date: Feb 2016
Location: Greenwood
Posts: 294
Likes: 0
Received 28 Likes on 25 Posts
Originally Posted by benIX View Post
But again what's puzzling is that I get really good compression when the lifters are bled 120 on all 4 cylinders.
The fact that you get good compression when the lifters are smaller, and no compression when they are full length means there's obviously something not fitting right. Something is too long.

Either the lifters are too big, the valves are too long, or your cams are improperly timed. You need to pull the head and start checking clearances.
Epyon is offline  
Old Mar 28, 2017, 12:53 AM
  #15  
Evolved Member
 
Join Date: Mar 2008
Location: Croatia
Posts: 1,507
Received 99 Likes on 87 Posts
sounds like the valves are too long to the seats have been cut too much.
kikiturbo is offline  

Thread Tools
Search this Thread
Quick Reply: Not even a shop knows what's wrong with my car 😔😔😔😔


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.