just got done installing the er rockers and 90# springs started fine then developed knock i turned it off and tried to restart it and it wouldnt after a three more tries it started and now knocks like a mother i immedilatley turned it off not sure what i did wrong during the install any help will be grealy apprediated.

Did you use new rocker bolts and did you torque them down properly?? Remove the valve covers and make sure none of the bolts came loose.

Milestone

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yeah i used the arp reusable bolts from zzp. and the procedure said torque to 11 ftlbs and then torque in a 90 degree angle not sure what that means just talked to an auto friend and he said i must not have checked for proper valve lash and torque need to take the covers off and look proper procedure on alldata and get it done right.

There is no need to check for valve lash on our engines, just torque them down properly.

Milestone

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What it sounds like they're saying is they want you to tighten the bolts to 11 ft/lbs. and then tighten the bolts an additional 90 degrees of wrench rotation [1/4 turn].

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2005 GT owner [Non S/C] with a "big DIC".
Two years later and I still love the car.
Thanks Pontiac...Bleen is keen!

wait i dont need to check for valve lash. then it must be because i didnt torque each cylinder at tdc.

I thought it was 25 ft/lbs... Well that's what's recommended for the Yella terra rockers. Hope you also used thread locker too.

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Why have more money than brains? Cuz RACE CAR :

not sure if i used thread locker or not i used assembly lube that came with the rocker install kit from zzp

If you used Reusables its suppose to be 25 ft/lbs and thats it. Like every one else is saying, I hope you used thread locker.

If a rocker came loose, you might have bent a push round or ruined a roller and from the sounds of it, it sounds like you did that. I would pull it all back apart and start trying to look for the anything unusual.

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04 Supercharged American and 01 Turbo Swede

Isn't that for torque to yield stretch bolts?

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Dubs:00 VW GTI VR6, Low and Slow 91 VW GTI 8v, Shave the Bay!! 91 VW Cabriolet 8v, bitch Basket
GP's:04 GP GT, Past now G-Ma's Girlfriend's 97 GP GT, "Project Pink Power"

Ya... Check all the lifters, rods, etc. My first attempt to install my rocker I screw all my lifters... It set me back $200 for the set from ZZP. BUT hopefully nothing really bad happened.

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Why have more money than brains? Cuz RACE CAR :

Nope.
It's just a different and more accurate method for torquing fasteners.
You DO NEED to use the method they prescribe.

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2005 GT owner [Non S/C] with a "big DIC".
Two years later and I still love the car.
Thanks Pontiac...Bleen is keen!

Got it. I've never done rockers before, so just wondering.

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Dubs:00 VW GTI VR6, Low and Slow 91 VW GTI 8v, Shave the Bay!! 91 VW Cabriolet 8v, bitch Basket
GP's:04 GP GT, Past now G-Ma's Girlfriend's 97 GP GT, "Project Pink Power"

That is for torque to yield bolts (stock)
The method they prescribe for the comp bolts like were used in this install is 25 ft lbs

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Mods include-
Pulley boys 3.2 pulley, 20* timing, HPTuned, pacesetters, SSIC, modded 1.9's, F/R STBs on Don Rome brackets, 255lph pump, ZZP billet rails, GXP catback
Best of 13.4 at 103.... 12's this year

I'm not sure what you're getting at.
Please clarify.

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2005 GT owner [Non S/C] with a "big DIC".
Two years later and I still love the car.
Thanks Pontiac...Bleen is keen!

ok well i bought the rocker set off someone on grandprixforums.net so i didnt have an install procedure from zzp i just went off what alldata said. i emailed zzp and gonna see what they have to say about it. hopefully ill be able to tear it back down and see whats wrong thanks to everyone that replied

I don't know about everyone else, but I torqued all of mine on TDC. Took some extra time but I wanted to be sure I did it right.

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04 GTT - Retired
Best ET 13.016
Best Trap 115.56 MPH

I don't remember specifically what we torqued mine to, but I honestly believe it was 25...

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2004 Grand Prix GTP
FWI | HP Tuner | 1.9 Rockers | Headers | 3.5 Pulley | 97-03 Control Arms w/GMPP sway bar|

X2.. Turning the crank was a b**ch!

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Why have more money than brains? Cuz RACE CAR :

x3 - That's actually how you should do it period.

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2004 Grand Prix GTP
FWI | HP Tuner | 1.9 Rockers | Headers | 3.5 Pulley | 97-03 Control Arms w/GMPP sway bar|

victorsmalls did u use the comp cams or arp reusable bolts what did u torque them to. right now im thinking about getting the oil restricted push rods for when i tear it back down to retorque. and what kind of thread locker am i supposed to use the zzp assembly kit came with rocker cover gaskets bolts and assembly lube.

and does anyone have the zzp install instructions i can use

It has been so long that I honestly can't remember what I used on mine. LOL, sort of makes me wonder what the hell I used.

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04 GTT - Retired
Best ET 13.016
Best Trap 115.56 MPH

Use gloves when you use it...

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Why have more money than brains? Cuz RACE CAR :

I'm not sure what is more of a win.... that you have GPONA open with Vic sig showing, or that you have threadlocker in your room.

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Dubs:00 VW GTI VR6, Low and Slow 91 VW GTI 8v, Shave the Bay!! 91 VW Cabriolet 8v, bitch Basket
GP's:04 GP GT, Past now G-Ma's Girlfriend's 97 GP GT, "Project Pink Power"

This is straight from ZZP's site.



If they are not reusable bolts then you have to use the 11 ftlbs + 90 degree.

I will post the write up again as it is a good reference to double check your work.
http://www.clubgp.com/cgi-asp/mods.asp?modid=34

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1999 GT|SLP CAI|Borla Catback| Shift kit|18" Koblenz|GMPP Lowering|GMPP handling|Blk Headlights|ER Rcokers|HV3|HV TB http://www.fquick.com/The_Guz