S2000 Under The Hood S2000 Technical and Mechanical discussions.

Bent Valves

Thread Tools
 
Old 02-23-2010, 08:00 PM
  #11  

Thread Starter
 
shehatezme's Avatar
 
Join Date: Nov 2003
Location: Bay Area
Posts: 754
Likes: 0
Received 0 Likes on 0 Posts
Default

I guess we won't know if the valves are bent until the head comes off.
Old 02-24-2010, 03:46 AM
  #12  

 
zeroptzero's Avatar
 
Join Date: Oct 2009
Location: Ontario Canada
Posts: 25,933
Received 3,799 Likes on 2,677 Posts
Default

that's all assuming that the test was done correctly. It doesn't sound like you have any real symptoms with the engine. You might want to consider a second test by a different auto shop just to be sure before you throw money into it. It could be something as simple as worn rings, not necessarily the valves, there's probably a lot of cars out there with some bad rings and running fairly normal. I'd get a second opinion if it was my car.
Old 02-24-2010, 06:03 AM
  #13  
Registered User

 
SPFSkyline's Avatar
 
Join Date: Dec 2005
Location: USA
Posts: 142
Likes: 0
Received 0 Likes on 0 Posts
Default

The only way to know for sure is to take off the head. I had similar issues, but it was not bent valve/rings/hg. I took it all apart because it ran like it had a bent valve and was leaking 25% from 2 & 3. Turns out dealers are not very thorough with checking injectors. Nothing was wrong with internals and most likely I have stuck injector(s) that washed the cylinder walls causing the lose in seal and misfiring.

Do the testing yourself, the stuff is inexpensive and easy to do (YouTube is your friend), or get a second opinion. That way you can be sure. If it is indeed leaking from #3, it is relativley simple to take the motor apart with the help of the service manual and this forum. The head took me all day with a friend to get completely torn off. You can get the head vac tested by a machine shop. If that comes back good, the oil pan is easy to remove and undo the rod ends. You can push the pistons up through the block. Just have a helper to catch them as they come out and fly a little and can fall and jack up $200 pistons or the block.

I'm currently waiting on parts to put mine back together and verify the injector. I have a friend that is a Master Tech for Honda helping me diagnose. I had to get help after I took it all apart and nothing was wrong. You can check out my fun adventure to see what it looks like: Cylinder Head Removed
Old 02-24-2010, 06:58 AM
  #14  
Registered User
 
NA20's Avatar
 
Join Date: Aug 2007
Posts: 331
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by shehatezme,Feb 23 2010, 05:17 PM
Is it possible that the previous owners (I am the third owner) over-rev slightly and it just started to deterioriate over time and break now?
Very possible..

Where did you buy the car from? Usually, most car lots that aren't Honda Dealers neglect to inspect the car thoroughly due to not being familiar with the vehicle...
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Cevin
S2000 Under The Hood
83
02-29-2016 11:00 AM
s2000maniac
S2000 Under The Hood
0
08-24-2013 03:52 PM
drhess06259
S2000 Under The Hood
14
06-09-2010 05:36 PM
Jacksparrow
S2000 Under The Hood
1
09-17-2008 04:13 AM
4wheelVFR
Gateway S2000 Owners
6
10-20-2005 05:43 PM



Quick Reply: Bent Valves



All times are GMT -8. The time now is 02:04 AM.