I need to have my rockers reconditioned for my rebuild. I have called Ollie's several times and don't get an answer. I can't find a website or e-mail address either.

So, can someone recommend someone else?
Is there anything special for reconditioning hydraulic rockers?
I need a quick turn around too.

 

Do you mean the lifters? If so, I think you just replace them... never heard of reconditioning them.

 

When I first saw this post I was thinking rocker panel reconditioning. I agree with murfyslaw here just replace them.

Mike

 

Not lifters, rockers. The surface can mar and wear and they need to be reconditioned.

 

I doubt if it'll be worth it as they will need to be re-hardened after grinding the pad surface.

 

talk with Steve Weiner at porsche@rennsportsystems.com he a rennlist sponser and will take care of you.

can also contact ninemeister, ask@ninemeister.com they know their stuff too.

 

http://drcamshafts.com/

 

May want to ask on pelican engine builders forum too...

 

I hadn't heard of having to recondition the rockers... interesting. Is that a commonly required thing on normally driven cars? Is there some mileage amount where it becomes more likely?

 

I'll second the Dougherty rec...He's also "camgrinder" on pelican...

 

A few thoughts on this subject,...

1) Used rockers should NEVER be installed with new cams. These should be either reground & rebushed or replaced with new ones. These do not have hardened surfaces like the old early steel forged 2.0 litre ones which were hard-chrome plated.

2) IMHO, a properly reground/rebushed rocker is superior to a new one due to quality control problems at Porsche. New rockers are oftentimes not square and parallel which accelerates camshaft wear.

3) The cams should be coated with moly before installation and a break-in oil containing high levels of ZDDP should be used for the first 100 miles. Upon initial engine start, keep the RPM's above 2000 for 15 minutes.

 

I agree with Steve and have run reconditioned rockers by Ollies. They have moved from CA to Arizona or Nevada I believe.

 

I wonder how far these can be ground until one must use the longer lifter inserts? I dont know what the std rocker ratio is for Porsche rockers, but the amount ground off is multiplied by the rocker ratio to get the height delta at the lifter insert.

I guess one could have them elecroless nickel plated (local to the pad) to bring it back, so to speak.

 

Chris,

A propery re-ground rocker arm won't be a factor since so little material is removed.

The real issue during a valve job is measuring the lengths of the valves after disassembly to make sure that any new valves are ground to match the total original lengths after the seats are re-cut. This aleviates the need for oversized lifters.

 

What are a few oils with high levels of ZDDP?