Need a torque value

Reply Subscribe

Thread Tools

Search this Thread

Nov 15, 2009 | 09:59 PM

Racer11

Thread Starter

Racer

Joined: Nov 2006

Posts: 264

Likes: 0

From: McLouth Kansas

Need a torque value

Just a quick question,,,,,,

I need to torque down the rocker stud's, for roller rockers,,,,

And do I need to use some blue thread locker on them.

Thanks,,,

Lee

Nov 15, 2009 | 11:36 PM

BLOCKMAN

Drifting

Joined: Dec 2005

Posts: 1,360

Likes: 3

From: NORTHEAST

Quote:

Originally Posted by Racer11

Just a quick question,,,,,,

I need to torque down the rocker stud's, for roller rockers,,,,

And do I need to use some blue thread locker on them.

Thanks,,,

Lee

We have been using silicon on rocker studs and we have been torquing them 65 foot pounds

Nov 16, 2009 | 12:20 AM

Racer11

Thread Starter

Racer

Joined: Nov 2006

Posts: 264

Likes: 0

From: McLouth Kansas

Thank you Sir

Are you talking about the silicone that is used for sealing and caulking ??

care to explain.....

Thanks

Nov 16, 2009 | 05:05 AM

gingerbreadman1977

Drifting

Joined: Apr 2006

Posts: 1,911

Likes: 2

From: gold coast queensland

i agree with 65 . feels like you going to snap them

i used oil on mine when i torqued them down.

Nov 16, 2009 | 05:21 AM

73StreetRace

Burning Brakes

Joined: Aug 2005

Posts: 1,164

Likes: 1

From: Europe, France

I agree with the tightening torque of 65. But I used Loctite 569 Thread sealant high strength :

http://henkelconsumerinfo.com/produc...605&VKORG=3450

A thread sealant is highly recommended, because some studs protrude into the water jackets if you're using the stock heads.
So if you don't want a mix with water and oil...

Nov 16, 2009 | 09:31 AM

larrywalk

Melting Slicks

Joined: Oct 2002

Posts: 2,317

Likes: 111

From: St Louis MO

GM's Chevy Power book recommends 50 ft-lb. I'd never use 65 in an aluminum heads for fear of stripping the threads unless I had a large supply of heli-coil inserts.

__________________
1978 Corvette
406 SBC AFR heads Lunati roller Quadrajet TH-350 3.08
11.59 sec / 118.9 mph 1/4 mile

Nov 16, 2009 | 09:35 AM

larrywalk

Melting Slicks

Joined: Oct 2002

Posts: 2,317

Likes: 111

From: St Louis MO

Quote:

Originally Posted by 73StreetRace

Permatex #2 for me - you might - no, will probably - need to shift the pushrod guide plate's position to align the rocker tips with the valve stem - I'd rather not have the stud be locked in place.

Nov 16, 2009 | 10:37 AM

73StreetRace

Burning Brakes

Joined: Aug 2005

Posts: 1,164

Likes: 1

From: Europe, France

Quote:

Originally Posted by larrywalk

Permatex #2 for me - you might - no, will probably - need to shift the pushrod guide plate's position to align the rocker tips with the valve stem - I'd rather not have the stud be locked in place.

Yes, you can use permatex too. Loctite 569 takes to time to harden, about 30 minutes, so it's generally more than enough time to set the guideplates, pushrods & rockers.