Me too.
I'm cheap, so I take a die grinder and make grooves in the shaft.
The grooves are cheap insurance.
Stainless, Bushed PRW Rocker Arms
- Thread starter Mopar69gts
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I'm cheap, so I take a die grinder and make grooves in the shaft.
The grooves are cheap insurance.
Yes and yet so many disagree. lol
Please understand
The Sole purpose of this thread was to share my experience to maybe help a fellow Mopar brother or sister and maybe help PRW make a better product, if there may be a solution.
Like So many have suggested Banana grooves.
I am a bit surprised by their response, but
It was never my intention to expect anything in return or bash PRW.
Goes back to post #49
I sincerely appreciate all of you guys and comments.
Thank you!!
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If oiling grooves didn't work Ma Mopar wouldn't have grooved 40 million shafts. 
I will say that if PRW had warrantied them but made no changes, I was going to buy a set of Rocket's Shafts and try that.If oiling grooves didn't work Ma Mopar wouldn't have grooved 40 million shafts.
I still might get a set from him depending on what Rocker Arms I end up with.
He's another Great person I got to talk with because of all this...
So I feel very fortunate in a backwards kinda way...lol
I would highly recommend doing your research and talk with some of these people before buying anything.
Mike
What are your plans regarding making SURE you have adequate oil from the engine?
Well I have a couple ideas,
First someone suggested taking off the rockers and shafts one side at a time ,
Pull out all spark plugs, cover the oil hole in the rocker stand with a cup or something
Have someone crank the engine over to watch how much oil is getting to each shaft.
Another thought was to just plug the oil holes in the heads under the shafts,
And get a set of Rocker Arms made for magnum Engines with La heads and just use pushrod oiling.
I also have a new solid flat cam I was going to install in the near future, I might have a groove machined in the journal for full-time oiling..
Just a few ideas
Pushrod oiling, IMO is a crutch, but if that's what you wanna do, it's your engine.
Just a thought,
I mean isn't that what you do on magnum Engines with LA heads?
What would you recommend?
Well sure, but magnum engines don't have the LA oil passage drilled (at least most do not), so what other choice is there? Without pushrod oiling, you'd have ZERO. I thought I'd talked blue in the face about my recommendation. It is this.....I would make DAMN SURE the factory LA passage to the rocker shaft is providing an adequate volume of oil. SOMETHING is not right and I don't think it's the rockers at this point.
Of course not being THERE and only diagnosing over the internet has its disadvantages. We're doin the best we can with "what we got".
Also, I think you answered this, but forgive me. I'm lazy and ain't gonna back read plus I forget. Did you say you are runnin an HV oil pump? If so, they you have plenty of oil volume from the SOURCE, it just may not be getting the volume it needs to the top.
Ok thank you
I'm not disagreeing with you.
I talked about checking the oil at the shafts with the suggested method.
I will do that for sure.
Being a boat mechanic that reminds me of a mercruiser test for checking water flow they have you take the hose off the pump hold it straight up and there's a spec.
On how high it should flow out the hose.
I'm not sure exactly how much oil should squirt out of the head?
But I can at least see if it looks obviously low...
I appreciate your help.
Yes high volume oil pump
I would say if you have an HV pump, you should have a pretty big mess to clean up if it's getting the right amount of oil there. lol And it should make a mess pretty dang QUICK.
I don't know how else to test that...
I can say there sure seems to be plenty of oil on the rockers and shafts each time I've had the valve covers off.
And from what I can see through the oil fill with the Engine running, there's a river of oil flowing.
Well, you COULD remove the shafts, remove the rockers and replace the shafts in the correct orientation without the rockers and torque to spec, remove the plugs and spin the engine. That should tell you pretty quickly.
Everyone should have a least one valve cover with the top cut off just for this occasion.
Did the OP ever say what the oil pressure is?
The cam bearings may not be lined up properly. Also the spacers between the shaft and the head may be a bit of a problem. What is your oil pressure at hot idle? With adjustable rockers it should be at least 30 lbs. if not it will be a contributing factor. Kim
He used prod oiling with a second set of rockers & they still failed; it is not an oiling problem. if you believe R. Ehrenberg, SAE, he say this on p.77 of the latest MA magazine: idling, in gear if auto, the oil pressure is at least 8-10 psi & instantly comes up a bunch just above idle, you're fine.
Post #129. I can think of quite a few deletions manufactures made to parts over the years, either to save money....or they were found to be unnecessary...or both. Deleting the oil spurt hole in the rod/cap intersection is one....
Post #129. I can think of quite a few deletions manufactures made to parts over the years, either to save money....or they were found to be unnecessary...or both. Deleting the oil spurt hole in the rod/cap intersection is one....
Bakerlite
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Manufactures also made enhancements to parts over the years as well.
Saying this has something to do with something else is pointless.
It's a pity PRW was not interested in getting one of the rockers back just to have a look and maybe check the material used in it..Just to rule that possibility out.
I take zero stock in anything Rick says. I do buy the occasional part from him, though.
They could easily cut some nanner grooves in a shaft THERE and test to see how much more oil they get.
mopowers
Well-Known Member
Do all of the new PRW stainless rockers have a full length bushing? The ones I bought 8 or so years ago are a two-piece design and have about a 1/4" void between the two bushing halves. I wonder when they changed that design.
Bakerlite
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I don't see a downside to a correctly grooved shaft.
Bakerlite
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Thin cut off blade in a hand held angle grinder works good as well.
I don't have any valve covers cut open, but I do have a large oil fill port that I added to the passenger side and with the cap off I can at least watch two rockers up close with the Engine running , their getting oil.
Also I can see oil flowing by on the outside edge of the head along the valve springs.
It has 40 lbs of oil pressure hot at idle.
And about 55 while driving.
I just got done checking all that
Also the valvetrain is quiet as a mouse while idling with the 273 rockers.
It was much noisier before with the PRW Rockers.
I do realize roller rockers are typically louder, just trying to point out everything I can.
Thank you
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