Hello! Log in or Register   |  Help  |  Donate  |  Buy Shirts New!  See all banner ads | Advertise on TheSamba.com  
TheSamba.com
 
how do i put rocker arm asmbly back on after fixing pushrod
Forum Index -> Vanagon Share: Facebook Twitter
Reply to topic
Print View
Quick sort: Show newest posts on top | Show oldest posts on top View previous topic :: View next topic  
Author Message
nirvana84
Samba Member


Joined: June 15, 2008
Posts: 36
Location: manchester nh
nirvana84 is offline 

PostPosted: Tue Jun 29, 2010 4:00 pm    Post subject: how do i put rocker arm asmbly back on after fixing pushrod Reply with quote

84 vw vanagon. 1.9L
i recently replaced a leaky pushrod tube. When i put the rocker arm assembly back on and ran the engine it made a horrible noise. i took the valve cover off and looked at it again and one of the ?rocker arm stud girdles? ( the part that goes over the rocker arm stud that you put the nut onto) cracked. i finally ordered some spare parts from cali on ebay and got them in. This weekend i want to try to fix it.
Any tips?
how do i make sure the pushrods are seated properly?
How tight do i tighten the rocker arm stud nuts?
do i have to do anything to the rocker arms to make them line up properly?
any ideas would be helpful
Thank You
Matt
Back to top
View user's profile Send private message Gallery Classifieds Feedback
fredn
Samba Member


Joined: May 27, 2010
Posts: 332
Location: Vancouver
fredn is offline 

PostPosted: Wed Jun 30, 2010 12:42 pm    Post subject: Reply with quote

Check your bently but I believe the rocker arm studs get tightened to 22- 25 ft lbs. The slits in the blocks that hold the rocker arms must face down and then you have to properly route that wire that keeps the pushrods from falling down at high rpm. Also make sure the pushrod is fully seated in the lifter and for gods sake set your valves properly or you will have a bigger problem.
Back to top
View user's profile Send private message Twitter Classifieds Feedback
nirvana84
Samba Member


Joined: June 15, 2008
Posts: 36
Location: manchester nh
nirvana84 is offline 

PostPosted: Wed Jun 30, 2010 3:20 pm    Post subject: Reply with quote

thanks for the response.
how do i set the valves properly??
Back to top
View user's profile Send private message Gallery Classifieds Feedback
stevey88
Samba Member


Joined: January 16, 2008
Posts: 1317
Location: Fremont, SF Bay Area
stevey88 is offline 

PostPosted: Wed Jun 30, 2010 5:18 pm    Post subject: Reply with quote

Most likely, when you put the push rods back in, one or more of them were not seated properly. They should be sitting at the center of the lifter ( easy to say but difficult to do ) but if one of them is not, it will bind up the rocker and damage them. So when you put them back together again, try to turn the engine by hand and make sure all the push rod are seated. The engine should turn smoothly ( all spark plugs out ) if everything is right.
_________________
Steve

87 Westfalia full camper 4 speed
Back to top
View user's profile Send private message Gallery Classifieds Feedback
morymob
Samba Member


Joined: November 09, 2007
Posts: 4683
Location: east-tn
morymob is offline 

PostPosted: Wed Jun 30, 2010 5:48 pm    Post subject: Reply with quote

With a good light there is a position where u can shine light and see down pushrod to see if end is in center of lifter, i do this before even turning engine over by hand for 1st time.
Back to top
View user's profile Send private message Gallery Classifieds Feedback
wbx
Samba Member


Joined: April 11, 2005
Posts: 1254
Location: Monterey, CA
wbx is offline 

PostPosted: Wed Jun 30, 2010 6:03 pm    Post subject: Reply with quote

There are those much more engine experienced than myself, but you can usually tell that one pushrod is "longer" than the others as you turn the engine over by hand. Also, with careful inspection, you can see how how one of the pushrods angles down slightly more than the others, but that can be a subtle distinction.
_________________
'84 Westy (first owner).......but my daily driver has pedals
My "perspective" mantra:
A Volkswagen Vanagon is just a material thing,
As such, it is of the earth,
And if i need to, I can let my Van go.
Back to top
View user's profile Send private message Gallery Classifieds Feedback
stevey88
Samba Member


Joined: January 16, 2008
Posts: 1317
Location: Fremont, SF Bay Area
stevey88 is offline 

PostPosted: Wed Jun 30, 2010 7:12 pm    Post subject: Reply with quote

One more thing. Check if the push rods are still straight. I bet one of them is bent now.
_________________
Steve

87 Westfalia full camper 4 speed
Back to top
View user's profile Send private message Gallery Classifieds Feedback
nirvana84
Samba Member


Joined: June 15, 2008
Posts: 36
Location: manchester nh
nirvana84 is offline 

PostPosted: Thu Jul 01, 2010 3:36 pm    Post subject: Reply with quote

thanks for all the tips.
wish me luck i am going to try to fix it tomorrow
Back to top
View user's profile Send private message Gallery Classifieds Feedback
type47
Samba Member


Joined: April 19, 2007
Posts: 31
Location: Vienna, VA
type47 is offline 

PostPosted: Sun Jul 04, 2010 6:13 am    Post subject: Reply with quote

When you put the rocker assembly back in, you should put that cylinder at TDC to relieve the tension on the rocker assembly when you torque it down.
Back to top
View user's profile Send private message Gallery Classifieds Feedback
nirvana84
Samba Member


Joined: June 15, 2008
Posts: 36
Location: manchester nh
nirvana84 is offline 

PostPosted: Thu Jul 08, 2010 4:05 pm    Post subject: Reply with quote

Thanks for all the advice.
I was able to fix it.
The biggest advice i would have for anyone after doing this project my self is make sure you adjust the valves after putting the rocker arm assembly back on or it will not start.
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Display posts from previous:   
Reply to topic    Forum Index -> Vanagon All times are Mountain Standard Time/Pacific Daylight Savings Time
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

About | Help! | Advertise | Donate | Premium Membership | Privacy/Terms of Use | Contact Us | Site Map
Copyright © 1996-2020, Everett Barnes. All Rights Reserved.
Not affiliated with or sponsored by Volkswagen of America | Forum powered by phpBB