Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 07-20-2006, 05:16 PM
Registered User
 
Join Date: Feb 2006
Location: Wake Forest, NC
Posts: 195
My Valve Adjustment SNAFU...

Well, I finally got around to adjusting the valves on my wife's 81-300sd, my first attempt. (I have read all of the threads here and at Diesel Giant and my manual) The 1st valve exhaust lobe is at the 1 position (and also the 3rd intake lobe). I cannot get any of the feeler gauges in the 1st E.

I loosen the top nut and turn the bottom nut a half turn clockwise and no gap. I turn it another half turn clockwise and still no gap...and again. I have depressed the spring by 1/2 inch by now and still NO gap.

WHAT am I doing wrong???? I don't even know how to get it back where it was?

I am supposed to take this car to the beach with the family tomorrow, any help would be appreciated.

Don

Reply With Quote
  #2  
Old 07-20-2006, 05:24 PM
Registered User
 
Join Date: Sep 2004
Posts: 8,956
Quote:
Originally Posted by dazsa
I have depressed the spring by 1/2 inch by now and still NO gap.

WHAT am I doing wrong????
Sure sounds like you are doing things backwards. The adjustment is via the upper nut. The lower nut is a locknut. To increase the clearance, the upper nut needs to turn CW.
Reply With Quote
  #3  
Old 07-20-2006, 05:32 PM
Registered User
 
Join Date: Feb 2006
Location: Wake Forest, NC
Posts: 195
ARGHHHHHH!!

Have I messed up things so I can't get them adjusted? Or, Should i just keep turning the top nut CW until something moves, or what?

I went out and moved the top nut way down and still nothing...I have taken something so easy and made it hard...it must have been my Marine training.

I have moved that top nut way down, now what as I still have not gap.

Don
Reply With Quote
  #4  
Old 07-20-2006, 05:43 PM
Registered User
 
Join Date: Sep 2004
Posts: 8,956
Quote:
Originally Posted by dazsa
it must have been my Marine training.
No. If it were that, you would've ripped the camshaft out by now so you could use it as a hammer.

If you have turned the upper nut all the way down on the valve and still have no clearance, something isn't right. Is it possible that the valve is rotating along with the nut?
Reply With Quote
  #5  
Old 07-20-2006, 05:46 PM
Registered User
 
Join Date: Dec 2002
Location: RI shore
Posts: 2,937
Do you have the cam lobe pointed AWAY from the rocker?
__________________
'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.
Reply With Quote
  #6  
Old 07-20-2006, 07:31 PM
Registered User
 
Join Date: Jul 2003
Location: Ocean Isle Beach, NC
Posts: 2,487
and are you holding the valve in place to keep from turning as Tangofox suggests?

Len
Reply With Quote
  #7  
Old 07-20-2006, 09:28 PM
Registered User
 
Join Date: Feb 2006
Location: Wake Forest, NC
Posts: 195
Well, I finally finished the valve adjustment. Probably a slow-time record: 8hrs.

I was going by the online pictorial from DieselGiant and it states: "Here is the two nut that you will be working with. The top nut it the locking nut, the bottom is the adjustment."

I love Diesel Giant's work with nimrod's like me, but the nuts are the opposite of his tutorial. Also, the valve was turning on some of them. Anyway, thanks to others here, I got done.

My back hurts and my feet stink, but the job is done.

Thanks,

Don
Reply With Quote
  #8  
Old 07-21-2006, 09:50 AM
Registered User
 
Join Date: Dec 2002
Location: RI shore
Posts: 2,937
Actually, it's: My head hurts, my feet stink, and I don't love Jesus (oh my lordy it's that...)
It's that kind of mornin'
Really was that kind of night
Tryin' to tell myself that my condition is improvin'
And if I don't die by Thursday I'll be roarin' Friday night

__________________
'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.
Reply With Quote
  #9  
Old 07-21-2006, 10:18 AM
Registered User
 
Join Date: Feb 2006
Location: Wake Forest, NC
Posts: 195
Pete,

I am surprised someone put that together, as that is exactly what I was referring to! That is from Jimmy Buffett, if I am not mistaken. I used to be a big fan.

Don
Reply With Quote
  #10  
Old 07-21-2006, 11:44 AM
Registered User
 
Join Date: Dec 2002
Location: RI shore
Posts: 2,937
used to? I still am. Thanks.
__________________
'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.
Reply With Quote
  #11  
Old 07-21-2006, 11:55 AM
ForcedInduction
Guest
 
Posts: n/a
Diesel giant needs to update his guide. He has it with the bottom nut as the adjusting nut.
Reply With Quote
  #12  
Old 07-21-2006, 12:17 PM
Registered User
 
Join Date: Feb 2006
Location: Wake Forest, NC
Posts: 195
Quote:
Originally Posted by ForcedInduction
Diesel giant needs to update his guide. He has it with the bottom nut as the adjusting nut.
Four and half hours later, I figured out he was wrong....thanks to the help here...and the manual, go figure!

Anyway, I don't want to minimize the help that DieselGiant does offer people.

Later, Don

Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 07:52 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2023, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page