S2000 Under The Hood S2000 Technical and Mechanical discussions.

strange vtec issue

Thread Tools
 
Old 06-20-2007, 12:12 PM
  #31  
Registered User

 
tron1's Avatar
 
Join Date: Mar 2003
Location: Sacramento
Posts: 794
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by heresnowhy,Jun 18 2007, 03:52 PM
me being over zealous with assembly lube, and it was in intake rocker, and no they were the original rockers..... I thought that might be the problem, but was dreading breaking her down that far again.....
Incredible.... I appreciate the diagnosis and repair/solution!
Old 06-20-2007, 04:59 PM
  #32  
Registered User

 
jyeung528's Avatar
 
Join Date: Apr 2003
Location: Temple City
Posts: 8,595
Likes: 0
Received 53 Likes on 50 Posts
Default

Originally Posted by AssassinJN,Jun 20 2007, 03:59 AM
Did you read the above posts?
lol, i can't read well.

any conclusions on why the pin got stuck?
Old 06-20-2007, 07:45 PM
  #33  
Registered User

 
90crvtec's Avatar
 
Join Date: Mar 2006
Location: Kansas City
Posts: 780
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by jyeung528,Jun 20 2007, 07:59 PM
lol, i can't read well.

any conclusions on why the pin got stuck?
But the OP already answered that question too....
Old 06-20-2007, 10:46 PM
  #34  
Registered User

 
jyeung528's Avatar
 
Join Date: Apr 2003
Location: Temple City
Posts: 8,595
Likes: 0
Received 53 Likes on 50 Posts
Default

too much lube?

what does that mean.
Old 06-20-2007, 11:07 PM
  #35  
Registered User
 
RACER's Avatar
 
Join Date: Oct 2003
Location: Knoxville, TN
Posts: 15,082
Likes: 0
Received 0 Likes on 0 Posts
Default


Originally Posted by jyeung528,Jun 19 2007, 11:57 PM
any conclusions?

Originally Posted by AssassinJN,Jun 20 2007, 03:59 AM
Did you read the above posts?

[QUOTE=jyeung528,Jun 20 2007, 05:59 PM]
lol, i can't read well.

any conclusions on why the pin got stuck?
Old 06-21-2007, 05:00 AM
  #36  
Registered User

Thread Starter
 
heresnowhy's Avatar
 
Join Date: Apr 2006
Location: I put the intntl in s2ki
Posts: 2,140
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by jyeung528,Jun 20 2007, 10:46 PM
too much lube?

what does that mean.
Too much lube. It means when I disassembled the engine, all of the the moving parts were cleaned and dried. When you assemble and re install critical moving parts, you need to apply assembly lube to pieces with metal to metal contact for the initial startup. I had applied an excessive amount of molly lube on the vtec pins, which according to the manual should just be oiled but I was feeling crazy and threw some lube on them anyhow. Well that's why the manual says use oil, the thick, glue like lube galled and froze my pins, in the number three cylinders intake rocker arm. Hope this is a better description for you.
Old 06-21-2007, 11:18 AM
  #37  
Registered User

 
jyeung528's Avatar
 
Join Date: Apr 2003
Location: Temple City
Posts: 8,595
Likes: 0
Received 53 Likes on 50 Posts
Default

ah shet.

when i reinstalled my cylinder head... i didn't lube it up.

damnit!

i didn't read anywhere in the service manual that spoke of lubing that shit up.
Old 06-21-2007, 01:10 PM
  #38  
Registered User

 
SpitfireS's Avatar
 
Join Date: Jan 2006
Location: 17 ft below sea level.
Posts: 4,949
Likes: 0
Received 21 Likes on 16 Posts
Default

heresnowhy Posted on Jun 21 2007, 02:00 PM
I had applied an excessive amount of molly lube on the vtec pins, which according to the manual should just be oiled but I was feeling crazy and threw some lube on them anyhow. Well that's why the manual says use oil, the thick, glue like lube galled and froze my pins,
It is (kinda) strange IMO - no offence - that the oil pressure wasn't strong enough to push the pins into "vtec position".
@ 6000 rpm there would be around 8 - 8.5 bar (120-125 psi.) of oil pressure.
After all the narrow passages you may end up with (?) 5.5 - 6.5 bar (80-100 psi) at the pins?
Pin diameter is (?) 7 - 8 mm?

That gives a minumum force of ... 20 Newton pushing the pin away.
Okay, minus the spring pushing back.

Lets say 17 newton = approx 3.8 lbf.
And all the parts are hot too.

Hmm...
Maybe you used glue instead of assembly lube?


jyeung528 Posted on Jun 21 2007, 08:18 PM
when i reinstalled my cylinder head... i didn't lube it up.

damnit!

i didn't read anywhere in the service manual that spoke of lubing that shit up.
No worries, they are lubed now.

Old 06-21-2007, 06:29 PM
  #39  
Registered User

Thread Starter
 
heresnowhy's Avatar
 
Join Date: Apr 2006
Location: I put the intntl in s2ki
Posts: 2,140
Likes: 0
Received 0 Likes on 0 Posts
Default

no offense taken, it seemed more like a vacuum holding it oddly enough. it took a rather strong magnet to get it free, possibly some debris lodged in it as well. Don't know really, but once I got it free and re assembled, she ran like a scalded cat.
Old 06-22-2007, 06:09 AM
  #40  
Registered User

 
Willie Gee's Avatar
 
Join Date: Jan 2004
Location: New Slowmyrna Beach
Posts: 13,826
Likes: 0
Received 0 Likes on 0 Posts
Default

I thought it was a stabbed rat.


Quick Reply: strange vtec issue



All times are GMT -8. The time now is 02:34 AM.