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12-10-2014, 10:35 PM
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#1
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Name: MAXTORQ
Title: Drop by, beers on me !
Status: Not Here
Join Date: Apr 2007
Location: Golden,Colorado
Member`s Gallery
Posts: 1,566
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Cummins CR Rocker Arms
Wanted a complete set of CR rocker arms from like a 2006 in decent shape.
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12-11-2014, 06:36 AM
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#2
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Name: rawdog
Title: Too Much Time
Status: Not Here
Join Date: Jan 2007
Member`s Gallery
Posts: 2,196
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Is there a difference between an 06 and any other 24v?
__________________
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12-11-2014, 06:44 AM
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#3
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Name: LAmiller
Title: THE KT-BOUNDARY
Status: Not Here
Join Date: Aug 2006
Location: Plain City, OH
Member`s Gallery
Posts: 3,603
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Just buy a complete new set from Cummins, they are around $250 iirc.
Lavon
__________________
04.5 QDLB 4x4 Diesel Power Challenge 2014/2015 Champion, ODSS 6.70 Points Champion 2015/2016
06 RaceCab 4x4 Ulimate Callout Challenge 2016, 2017, 2018 Champion, ODSS Pro Street Points Champion 2016
2016 QDLB 4x4, Firepunk EZLynk.
http://www.shop.firepunk.com
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12-11-2014, 08:34 AM
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#4
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Name: Mark Nixon
Title: No Savior among the flesh
Status: Not Here
Join Date: Feb 2009
Location: Brownville, Nebraska
Member`s Gallery
Posts: 8,676
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Quote:
Originally Posted by rawdog
Is there a difference between an 06 and any other 24v?
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Through the 24 valve/CR eras there are 2 basic versions of rockers.
1 version, the more "known" one, has the plastic lash cap retainers, these run from @ 2000 through 2009.
The other version has the lash caps pressed onto the tip and were found on the early 5.9 24 valves and @ 2010 up 6.7s.
I may be off a bit on the year ranges, with the way Cummins can do certain things in an on-road engine, yet do totally another in an off-road engine, but I'm close, at least.
Of course, I have a few sets of either style.
Mark.
__________________
If you or I did business like the PEOPLE in government do business, we'd be put in jail. Government is coercive.
Anarchy: The state of existence where there are no masters & no slaves. Therefore, Anarchy means the ABSENCE OF SLAVERY, or, in other words, FREEDOM.
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12-12-2014, 08:24 PM
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#5
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Name: MAXTORQ
Title: Drop by, beers on me !
Status: Not Here
Join Date: Apr 2007
Location: Golden,Colorado
Member`s Gallery
Posts: 1,566
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Quote:
Originally Posted by rawdog
Is there a difference between an 06 and any other 24v?
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Figured I'd list as complete of a description as possible.
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12-12-2014, 10:05 PM
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#6
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Name: jlibert
Title: Too Much Time
Status: Not Here
Join Date: Jun 2007
Location: CA
Member`s Gallery
Posts: 3,454
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I just threw a set away two months ago.
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12-12-2014, 10:40 PM
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#7
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Name: 98xtremcummins
Title: Too Much Time
Status: Not Here
Join Date: Sep 2008
Location: Fall Creek, Wi
Member`s Gallery
Posts: 677
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I have a complete set from a 06. 150bucks
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12-12-2014, 11:01 PM
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#8
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Name: MAXTORQ
Title: Drop by, beers on me !
Status: Not Here
Join Date: Apr 2007
Location: Golden,Colorado
Member`s Gallery
Posts: 1,566
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Got a set thanks.
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03-28-2015, 10:32 PM
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#9
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Name: Kick Start
Title: Banned
Status: Not Here
Join Date: Feb 2009
Location: Louisville, KY
Member`s Gallery
Posts: 3,173
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Quote:
Originally Posted by LAmiller
Just buy a complete new set from Cummins, they are around $250 iirc.
Lavon
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Are they USA or India made? Just found a broken one while doing headstuds in my 08 mega. They were India made.
__________________
lilspoon
SPiT Diesel
Piss Excellence
All possible because of UNICORNS
Wampus Cat Diesel
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03-28-2015, 10:46 PM
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#10
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Name: Mark Nixon
Title: No Savior among the flesh
Status: Not Here
Join Date: Feb 2009
Location: Brownville, Nebraska
Member`s Gallery
Posts: 8,676
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Little info on 24 valve/CR rocker arms that I know.
There are 2 basic designs, pressed cap and I'll call the other retained cap.
"Retained Caps" are the ones with the plastic retainer to keep the lash cap retained to the rocker's ball.
Pressed cap are machined so that they snap over the rocker's ball.
The pressed cap rockers are used in early 5.9 24 valves and 2010-up 6.7s, HOWEVER, the early ones are cast "USA", whereas, from what I have seen, the later ones are all cast "India".
So far, all of the 24v/CR rockers, of either design that I have seen, are cast USA, India or Brazil.
PERSONALLY, from the standpoint of not losing the lash caps, or having broken retainers, I prefer the pressed cap to the retained ones, but that's my personal preference.
Mark.
__________________
If you or I did business like the PEOPLE in government do business, we'd be put in jail. Government is coercive.
Anarchy: The state of existence where there are no masters & no slaves. Therefore, Anarchy means the ABSENCE OF SLAVERY, or, in other words, FREEDOM.
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03-28-2015, 11:03 PM
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#11
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Name: zstroken
Title: For $$$ your name here
Status: Not Here
Join Date: Sep 2006
Location: Western Michigan(by the lake)
Member`s Gallery
Posts: 23,151
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Quote:
Originally Posted by Mark Nixon
Little info on 24 valve/CR rocker arms that I know.
There are 2 basic designs, pressed cap and I'll call the other retained cap.
"Retained Caps" are the ones with the plastic retainer to keep the lash cap retained to the rocker's ball.
Pressed cap are machined so that they snap over the rocker's ball.
The pressed cap rockers are used in early 5.9 24 valves and 2010-up 6.7s, HOWEVER, the early ones are cast "USA", whereas, from what I have seen, the later ones are all cast "India".
So far, all of the 24v/CR rockers, of either design that I have seen, are cast USA, India or Brazil.
PERSONALLY, from the standpoint of not losing the lash caps, or having broken retainers, I prefer the pressed cap to the retained ones, but that's my personal preference.
Mark.
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However if the lash adjustment is kept up, is there really any issue with the plastic cap ones?
__________________
2008 4x4 Megacab, 68RFE
97 Dodge gone....
24V P-Pump Mafia member #1(retired)
Thanks to Mumau Diesel, Goerend Transmission, Northeast Diesel Service!
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03-28-2015, 11:08 PM
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#12
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Name: Mark Nixon
Title: No Savior among the flesh
Status: Not Here
Join Date: Feb 2009
Location: Brownville, Nebraska
Member`s Gallery
Posts: 8,676
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Quote:
Originally Posted by zstroken
However if the lash adjustment is kept up, is there really any issue with the plastic cap ones?
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It's really here nor there, as I said, personal preference.
I know if I were doing a lot of tear downs, for peace of mind the pressed ones allow would seem a better precaution.
Hell, in reality, if you could keep track of the lash caps, you don't even really need the plastic retainers.
Mark.
__________________
If you or I did business like the PEOPLE in government do business, we'd be put in jail. Government is coercive.
Anarchy: The state of existence where there are no masters & no slaves. Therefore, Anarchy means the ABSENCE OF SLAVERY, or, in other words, FREEDOM.
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03-28-2015, 11:20 PM
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#13
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Name: zstroken
Title: For $$$ your name here
Status: Not Here
Join Date: Sep 2006
Location: Western Michigan(by the lake)
Member`s Gallery
Posts: 23,151
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Quote:
Originally Posted by Mark Nixon
It's really here nor there, as I said, personal preference.
I know if I were doing a lot of tear downs, for peace of mind the pressed ones allow would seem a better precaution.
Hell, in reality, if you could keep track of the lash caps, you don't even really need the plastic retainers.
Mark.
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I wasn't meaning to challenge, more just confirm my thoughts on it, as my 08 has the stock plastic ones. I do agree that something with lots of teardowns, you are just asking to lose a cap.
__________________
2008 4x4 Megacab, 68RFE
97 Dodge gone....
24V P-Pump Mafia member #1(retired)
Thanks to Mumau Diesel, Goerend Transmission, Northeast Diesel Service!
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03-29-2015, 01:42 AM
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#14
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Name: cityredneck
Title: Diesel Mechanic
Status: Not Here
Join Date: Sep 2009
Location: Blairsville, PA
Member`s Gallery
Posts: 393
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I have always wanted to change to the later style pressed style. I have a few broken plastic retainers and everytime i take them out i have to keep track of the caps. But as long as theres no catastrophic failure or serious valve float i dont think they are going anywhere
__________________
05 Purple CCSB 5.9
Fastest to date 10.11 @ 137
HP Tuning by Gordon @ Innovative
Exergy 150%, Industrial dual CP3's, Garrett GT4509R. Manual VB, Some nitrous and other goodies
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03-29-2015, 02:58 AM
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#15
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Name: YoungDiesel27
Title: Never Enough Time
Status: Not Here
Join Date: Jul 2010
Location: West Virginia
Member`s Gallery
Posts: 825
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I agree that as long as valve lash is maintained you will never see one of the lash caps fall off even if the black plastic retainer is missing. Just makes it more of a pain to keep track of when going back together if the plastic is gone. Heck, if your valve lash was loose enough to allow a unretained lash cap to fall off then your probalbly going to have something else fall off like the bridge or rocker adjustment stud to pushrod connection. Just my thoughts...
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