Go Back  Offshoreonly.com > Technical > Do It Yourself, Boating on a Budget
how to set the valve lash on a gen 6 502 mag? >

how to set the valve lash on a gen 6 502 mag?

Notices

how to set the valve lash on a gen 6 502 mag?

Thread Tools
 
Old 06-21-2011, 09:53 PM
  #1  
Registered
Thread Starter
 
Join Date: Aug 2010
Location: Ottumwa, IA
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
Default how to set the valve lash on a gen 6 502 mag?

Did a search came up empty handed. How do you set the valve lash on a 96 502 MAG EFI? cold set them till you cant spin the push rods with your fingers or are these not adjustable?

Thanks
Shawn

P.S. almost forgot the motor has aftermarket rocker arms, I think they are Comp Magnums.
haulinit is offline  
Old 06-21-2011, 10:09 PM
  #2  
Charter Member
Charter Member
iTrader: (1)
 
Ted G's Avatar
 
Join Date: Jan 2001
Location: Edgerock Baby!!
Posts: 7,663
Likes: 0
Received 1 Like on 1 Post
Default

If they are adjustable (stock are not), then tighten till there is no lash (moving up and down is better than spinning) plus 3/4 turn.
__________________
Chesapeake Bay Powerboat Association
www.cbpba.com
Ted G is offline  
Old 06-22-2011, 11:39 AM
  #3  
Registered
iTrader: (1)
 
Join Date: Feb 2011
Posts: 2,640
Likes: 0
Received 4 Likes on 3 Posts
Default

Originally Posted by Ted G
If they are adjustable (stock are not), then tighten till there is no lash (moving up and down is better than spinning) plus 3/4 turn.
Yep, I have heard 1/2 turn all the way up to 1 full turn. I set mine at about 5/8, and I have a couple of clatterers, so you are probably spot on saying 3/4 turn.
Budman II is offline  
Old 06-22-2011, 12:28 PM
  #4  
Registered
iTrader: (3)
 
Join Date: Oct 2007
Location: yorkville,il
Posts: 8,427
Received 87 Likes on 49 Posts
Default

gen 6 502 is non adjustible in stock form.
mike tkach is offline  
Old 06-22-2011, 01:42 PM
  #5  
Registered
Thread Starter
 
Join Date: Aug 2010
Location: Ottumwa, IA
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
Default

Guess Only way to know is to tear into her. Is there any intake or head bolts that need sealant put on them due to them hitting a water jacket? First BBC project everything else has been SBC.
haulinit is offline  
Old 06-22-2011, 01:48 PM
  #6  
Registered
 
Join Date: Apr 2007
Location: NY
Posts: 258
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by mike tkach
gen 6 502 is non adjustible in stock form.
That's correct. If it's got a stamped steel rocker, then it's non-adjustable.

EDIT: Never mind... Just saw your post that says it has a Comp rocker. Most likely adjustable in that case.

Last edited by cubicinches; 06-22-2011 at 01:52 PM. Reason: Dumbness
cubicinches is offline  
Old 06-22-2011, 03:27 PM
  #7  
Registered
iTrader: (1)
 
Join Date: Feb 2011
Posts: 2,640
Likes: 0
Received 4 Likes on 3 Posts
Default

Originally Posted by haulinit
Guess Only way to know is to tear into her. Is there any intake or head bolts that need sealant put on them due to them hitting a water jacket? First BBC project everything else has been SBC.
I believe 502 has blind head bolt holes in the block, so sealant is not needed. 454 has bolt holes that extend into water jackets, so sealant is needed for these.

A couple of the intake bolts extend into the lifter valley and will need sealant. Play it safe and just put the sealant on all of them.
Budman II is offline  
Old 06-22-2011, 04:52 PM
  #8  
Registered
Thread Starter
 
Join Date: Aug 2010
Location: Ottumwa, IA
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks everybody "better safe then Sorry". I would be sunk with you guys
haulinit is offline  
Old 06-22-2011, 08:15 PM
  #9  
Charter Member
Charter Member
iTrader: (1)
 
Ted G's Avatar
 
Join Date: Jan 2001
Location: Edgerock Baby!!
Posts: 7,663
Likes: 0
Received 1 Like on 1 Post
Default

If you pull the heads you should buy new bolts and they should have a small amount of pipe sealant on them. All intakes should also have a small amount of sealant on them.
__________________
Chesapeake Bay Powerboat Association
www.cbpba.com
Ted G is offline  

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On



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

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.