Yella Terra rocker arms, preloading, valve lash - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-11-2012, 11:09 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2005
Location: Tempe, AZ
Posts: 73
Thanks: 0
Thanked 0 Times in 0 Posts
eazhar is on a distinguished road
Default Yella Terra rocker arms, preloading, valve lash

So now I've bolted on the heads and I bought the yella terra roller rocker set from intense. I installed the metal guides and the new pushrods they provided, however when I try to install the rocker arms, I can't seem to get a snug fit. That is, even when I tighten down the rocker arms to the point that I feel resistance, there is still play in the rocker arms and I can still move the pushrods up and down slightly. Now this isn't happening on all the rocker arms.. just 8/12 of them.

Here is a video of what I am observing.


The rocker arm bolts that came with the kit have an allen-wrench type screw so I can't really use a normal socket set for it.. I'm just using a 6mm hex key.

Do you guys think I should tighten it down further? Or is my pushrod too short (not sure how that could be)?
eazhar is offline   Reply With Quote
Old 04-12-2012, 06:31 AM   #2
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,643
Thanked 995 Times in 772 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

Are your lifters still dry?
Mike is offline   Reply With Quote
Old 04-12-2012, 07:24 AM   #3
Senior Member
Posts like a 4 Banger
 
Join Date: Aug 2011
Location: muskegon, mi
Posts: 131
Thanks: 0
Thanked 0 Times in 0 Posts
pbrktrt is on a distinguished road
Default

Did you give them the 24 hour oil bath as recommended?
pbrktrt is offline   Reply With Quote
Old 04-12-2012, 05:31 PM   #4
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2005
Location: Tempe, AZ
Posts: 73
Thanks: 0
Thanked 0 Times in 0 Posts
eazhar is on a distinguished road
Default

I soaked them in oil for about 4 hours prior to installing them
eazhar is offline   Reply With Quote
Old 04-12-2012, 10:46 PM   #5
Junior Member
 
Join Date: Apr 2012
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
OneFastGator is on a distinguished road
Default

Have you contacted Intense with your questions?
OneFastGator is offline   Reply With Quote
Old 04-12-2012, 10:57 PM   #6
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

The rocker bolts need to be torqued to the correct amount, with a torque wrench. Can't remember the amount off the top of my head. But around 24 foot pounds comes to mind.
Danthurs is offline   Reply With Quote
Old 04-14-2012, 08:15 PM   #7
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2005
Location: Tempe, AZ
Posts: 73
Thanks: 0
Thanked 0 Times in 0 Posts
eazhar is on a distinguished road
Default

Yeah I torqued them afterwards, still no avail. I talked to intense, they said the pushrods are short but they won't take them back since it'* been over a month since I bought them. I just borrowed a pushrod length checker and I will probably order some comp cams next week.
eazhar is offline   Reply With Quote
Old 04-14-2012, 09:47 PM   #8
Artist
True Car Nut
 
yutzybrian's Avatar
 
Join Date: Jul 2009
Location: USA
Posts: 5,283
Thanked 48 Times in 35 Posts
yutzybrian is a splendid one to beholdyutzybrian is a splendid one to beholdyutzybrian is a splendid one to beholdyutzybrian is a splendid one to beholdyutzybrian is a splendid one to beholdyutzybrian is a splendid one to beholdyutzybrian is a splendid one to behold
Default

Wow so the mistake was their fault then? That'd be some crap
yutzybrian is offline   Reply With Quote
Old 04-14-2012, 09:53 PM   #9
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,643
Thanked 995 Times in 772 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

What is their advertised length vs your stock length?
Mike is offline   Reply With Quote
Old 04-16-2012, 04:27 PM   #10
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2005
Location: Tempe, AZ
Posts: 73
Thanks: 0
Thanked 0 Times in 0 Posts
eazhar is on a distinguished road
Default

So I spoke to someone from Intense over the phone this time as opposed to email exchanges. They say their yella terras have had some reports of being slightly short, especially if a stage 1 cam is being used. The stock is 6.98'' in length and the yella terras are ~7.3''. They recommended going with an LS1 pushrod set which stock are 7.4''. They offered to credit me $20 for the old yella terra pushrods, but a new set of LS1 rods would end up being close to $100, from them. I'm going to gamble on a used LS set I found on eBay, for now, but if they suck I'll only be out $30.
eazhar is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1.95 Yella Terra Rockers Bwayney Performance, Brainstorming & Tuning 10 01-29-2010 10:09 AM
Yella Terra rockers for L36? TheDude Performance, Brainstorming & Tuning 15 02-05-2008 09:25 PM
yella terra on L36 firebuick Performance, Brainstorming & Tuning 7 07-05-2007 01:29 AM
Those with Yella Terra rockers... J Wikoff Performance, Brainstorming & Tuning 9 08-21-2005 09:52 PM
Yella Terra Twister97 Performance, Brainstorming & Tuning 6 03-03-2005 01:40 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 02:36 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.