8MM Rocker Arm Bolts
Thread Starter
TECH Apprentice
iTrader: (5)
Joined: Oct 2007
Posts: 359
Likes: 0
From: New Hampshire
8MM Rocker Arm Bolts I know the torque is 22ftlb's, should I use assembly lube on the thread's for a better torque reading or do people put them in dry and torque them?
Thanks
Thanks
FormerVendor
Joined: May 2004
Posts: 247
Likes: 0
From: Portland Oregon
I use plain engine oil, and on the intake bolts, use a permatex high performance PTFE sealant, as the threads go all the way into the port.
The GM manual doesn't call for assembly lube. The 22 lb-ft is therefore likely derived from dry friction. Adding a lubricant, to get the same bolt pre-load, requires an adjustment to the torque value.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Thread Starter
TECH Apprentice
iTrader: (5)
Joined: Oct 2007
Posts: 359
Likes: 0
From: New Hampshire
Thanks for the comments. I called GM Powertrain Tech Service this morning. They told me just plain oil as was mentioned earlyer, and then the 22 ft lbs. I took there advice. I guess a little (very little) Loctite wouldn't hurt if you had a full on drag car, but mine's not. I'll try that first. If they loosen up, I'll try some Loctite.
I've never used Loctite on rocker bolts. It's completely unnecessary. However, I do use a thread sealer on the intake rocker bolt. If you feel better using Loctite, by all means, do it.
I never put a drop of anything on my stock rocker bolts, worked perfect. If you want to use sealer, do so only if you've got ported heads and on the intake rockers only. It's a good idea to torque them down, turn the motor over 180*, and re-torque. If the valve is open, it's adding force upward on the bolts, which can a false torque reading on the bolt. Make sure you use a 6-pt 8mm socket too.
If you put red loctite on them, you're insane. If you've used it until now with no problems, you should buy lottery tickets.
If you put red loctite on them, you're insane. If you've used it until now with no problems, you should buy lottery tickets.
