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Roller rocker
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1960fury
Posted 2021-10-31 6:14 PM (#616457)
Subject: Roller rocker



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Location: northern germany
I finally decided to replace the OE stamped steel rockers with adjustable ones, since the OE units deleloped a little play after about 370K miles. Of course I can't leave them untouched and already cut down unnecessry length of the adjusting nut and bolt and reduced about 1/3 of the weight.

The roller rockers seem to be a nice design and the bearings and push rods are oil pressurized, which I really like. However, the oil hole that lubricates the roller/valve end is at the very top. My question is, is there enough oil pressure to direct/spray the oil to inside of the valve cover? Sure, oil will reach the rollers, but I would prefer it directed directly to the rollers. I could modifie it, it is not hard but time consuming, so I tought I ask. Anybody knows the answer?

Looks like I'm blocked from posting pictures now. Somebody didn't like the "Himsstler"?

Edited by 1960fury 2021-10-31 8:57 PM
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1960fury
Posted 2021-11-04 6:59 PM (#616572 - in reply to #616457)
Subject: RE: Roller rocker



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.



(a1rocker1.6ds.jpg)



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Attachments a1rocker1.6ds.jpg (74KB - 122 downloads)
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57chizler
Posted 2021-11-05 12:59 PM (#616581 - in reply to #616572)
Subject: RE: Roller rocker



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That top hole is pretty typical for roller rockers, I don't think it's intended to spray but rather to ooze some oil that will run down to the roller tips.
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1960fury
Posted 2021-11-06 10:21 AM (#616595 - in reply to #616457)
Subject: Re: Roller rocker



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Okay, thanks, John. I will try that way and might run it w/o the valve covers to check, but probably once installed, I will leave it that way.
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mikes2nd
Posted 2021-11-06 11:08 AM (#616596 - in reply to #616457)
Subject: Re: Roller rocker


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yes its a weep ooze hole, it comes down onto that rolller, surface tension will help also, hard to say if a high pressure will squirt or spray. As long as a oil pressure hole lines up on the shaft and your good to go.
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1960fury
Posted 2021-11-06 11:46 AM (#616598 - in reply to #616596)
Subject: Re: Roller rocker



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mikes2nd - 2021-11-06 11:08 AM

yes its a weep ooze hole, it comes down onto that rolller, surface tension will help also, hard to say if a high pressure will squirt or spray. As long as a oil pressure hole lines up on the shaft and your good to go.


The shaft will remain OE since the bearing surface of the roller rocker does not touch the bearing surface of the OE rockers that "worked" there for 62 years. So the oil hole is at the bottom.
The roller rocker is so to speak "hollow" in the center with bearings only at the ends, so oil pressure will reach the 2 oil holes in the rocker, one for the roller tip on top one for the pushrod cup.
The rocker bearing surface is now pressurized and alot larger than that of the stamped steel rockers, which I really like, also the push rod cup is now pressurized. the only thing that is questionable is the the roller and the roller pin. We will see. This was a cheap set, but it looks good.

One adjustment stud (cup) was machined incorrectly and to my surprise the Ebay vendor send one replacement immediatly, without hassle. All holes are not deburred, so these need a little work, but for that money it is okay.
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1960fury
Posted 2021-11-06 9:19 PM (#616607 - in reply to #616598)
Subject: Re: Roller rocker



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1960fury - 2021-11-06 11:46 AM

mikes2nd - 2021-11-06 11:08 AM

yes its a weep ooze hole, it comes down onto that rolller, surface tension will help also, hard to say if a high pressure will squirt or spray. As long as a oil pressure hole lines up on the shaft and your good to go.


The shaft will remain OE since the bearing surface of the roller rocker does not touch the bearing surface of the OE rockers that "worked" there for 62 years. So the oil hole is at the bottom.
The roller rocker is so to speak "hollow" in the center with bearings only at the ends, so oil pressure will reach the 2 oil holes in the rocker, one for the roller tip on top one for the pushrod cup.
The rocker bearing surface is now pressurized and alot larger than that of the stamped steel rockers, which I really like, also the push rod cup is now pressurized. the only thing that is questionable is the the roller and the roller pin. We will see. This was a cheap set, but it looks good.

One adjustment stud (cup) was machined incorrectly and to my surprise the Ebay vendor send one replacement immediatly, without hassle. All holes are not deburred, so these need a little work, but for that money it is okay.


A picture says more than thousand words:



(rocker1b.jpg)



(rocker1a.jpg)



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Attachments rocker1b.jpg (44KB - 123 downloads)
Attachments rocker1a.jpg (54KB - 125 downloads)
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1960fury
Posted 2022-07-26 11:02 AM (#623203 - in reply to #616457)
Subject: Re: Roller rocker



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Since these are installed now, performing flawlessly so far, I can answer that question. John was right, at least at idle the oil just oozes out, no spray. Good I didn't mess with it.
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Powerflite
Posted 2022-08-10 1:00 PM (#623472 - in reply to #616457)
Subject: Re: Roller rocker



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How heavy are these rockers compared to the originals?
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1960fury
Posted 2022-08-11 11:44 AM (#623494 - in reply to #623472)
Subject: Re: Roller rocker



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Powerflite - 2022-08-10 1:00 PM

How heavy are these rockers compared to the originals?


Much heavier, but a large portion of the weight is the full circle "housing", not the arms, which is not as bad. I exchanged the steel jam nuts with ones out of aluminum, also cut down the unneeded lenghts of the adjustment studs.
Still have the OE springs, but didn't notice any valve float, but never been past 120 mph yet.
Of course I weighed them an wrote the weight down. If I find the paper, I will let you know what the weight is. So far (about 1000 miles) they perform flawlessly and I regret, that I didn't buy 2 sets, while still affordable.
Customer support was great too. They send me another adjustment stud free of charge in a heart beat, since one was machined incorrectly.
Again, these need careful inspection, like all parts these days I guess. They fit the valves and stock pushrods perfectly, but you have to play around with the lateral adjustment. Shims are included. I also replace the heavy steel spacers with aluminum spacers, I cut from a pipe.

Edited by 1960fury 2022-08-11 8:24 PM




(rollers2.jpg)



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Attachments rollers2.jpg (228KB - 41 downloads)
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1960fury
Posted 2022-08-12 11:01 AM (#623516 - in reply to #616457)
Subject: Re: Roller rocker



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Posts: 7242
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Location: northern germany
Found it. The roller rockers are about 55 Grams (1.94 OZ) heavier than the OE rockers. Measured with the cut down (lightened) adjusting screws. I forgot if I weighed them with the steel or aluminum jam nuts.

Just noticed that I didn't mention nowhere, that these are 1.6 rockers. So these gave a noticeable boost in power (and noise!) over the about 1.45 ratio OE rockers with the stock OE GC cam and ported OE heads.

80-130 mph has always been fun with this car with the 2.93 axle, but now it jumps to 120 even faster and even more effortlessly. Off-idle performance has improved too.

Edited by 1960fury 2022-08-12 11:16 AM
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MrIncredible
Posted 2022-09-18 8:25 PM (#624328 - in reply to #616457)
Subject: Re: Roller rocker


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I seem to have missed it-do you have a link to the supplier? Those look nice.
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1960fury
Posted 2022-09-18 8:58 PM (#624329 - in reply to #624328)
Subject: Re: Roller rocker



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Speedmaster 1.6 Mopar Big Block stainless steel roller rockers. Also available in aluminum but a different design, that I don't like with needle bearings.
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1960fury
Posted 2022-09-19 6:17 PM (#624351 - in reply to #616457)
Subject: Re: Roller rocker



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Supplier was "atracingworld-usa" on Ebay. Great customer service too. So far, about 3K miles in use, I couldn't be happier. No problems whatsoever, no noises. However, I must ad, that I only run them because I use a fairly mild cam with the OE springs. They look nice, but I wouldn't run them with a radical cam. The part that looked questionable to me, was the pin that holds the roller. It is kinda like a rivet and therefore has hollow ends. So the pin is mostly hollow in the section that goes thru the arms. To make things worse, there is LOTS of LATERAL roller play on the pin, which makes it more likely for the pin to snap.
If these rockers give, it will be most likely there. The, at first glance identical looking, PRW's use a different pin, that looks much sturdier. But these carry a $500-$600 price tag....

I forgot, before you adjust the side play on your engine, make sure the bearings of the rockers are all flush with the rocker hsg. Mine weren't and protruded slightly, but it was no big deal to drive them in further.

Edited by 1960fury 2022-09-19 6:39 PM
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1960fury
Posted 2022-09-19 8:58 PM (#624355 - in reply to #624328)
Subject: Re: Roller rocker



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Location: northern germany
Just checked the sellers shop. The kit I bought is out of stock. But he offers a similar looking kit now, not $160 (what I paid), it is $295 now, but interestingly the pin (I mentioned above) looks like the PRW rocker pin now Does not make feel better about it.......

Too bad they do not only sell the arms, since that is all what is needed.

https://www.ebay.com/itm/354181001465?epid=19043809240&hash=item5276...

Edited by 1960fury 2022-09-19 9:11 PM
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MrIncredible
Posted 2022-09-25 3:49 PM (#624518 - in reply to #616457)
Subject: Re: Roller rocker


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Appreciate the link.

I do have a fairly radical cam so I'm not sure if I should go for it.

I'll keep looking around.
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