It is currently Thu Mar 28, 2024 7:51 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 63 posts ]  Go to page Previous  1, 2, 3, 4  Next
Author Message
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Mon Aug 21, 2017 11:08 pm 
Offline
LOST Member

Joined: Fri May 20, 2011 8:57 pm
Posts: 100
Location: New Orleans, Louisiana
newly formatted spreadsheet https://1drv.ms/x/s!AjoXnVa96mPNmJJClN-u5oCid3B_ig

_________________
2005 Jeep Liberty CRD 110k miles - working on tb, rockers, arp, camshafts
1985 Mitsubishi Mighty Max 2.0 liter
1989 Vanagon GL


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Tue Aug 22, 2017 9:15 am 
Offline
LOST Member

Joined: Thu Jun 11, 2015 3:51 pm
Posts: 108
Location: Merrimac, MA
Jeep Owner - Jsamps1345
Year Model - 2006
Jeep Manufacture Date - 2006? will check and update
Engine Manufacture Date - How would i find this?
TB Replaced - 142,892
ARP Install - 142,892
Rocker replacement - 142,892
Failed Head Gasket - not failed but was replaced with new at 142,892
Head Cracked - No
Intake Valve failure - No, replaced at 142,892
Exhaust Valve Failure - No, replaced at 142,892
Last reported mileage - 154,739

EGR deleted at 142,892 with Weeks kit. Plugged coolant port on side of head.
All new coolant and thermostat at 142,892

_________________
2006 Jeep Liberty CRD Limited - Rebuilt at 145K
GDE Eco Tune
Weeks 1+2
ARP Studs
New rockers + Valves
New #1 pistion and all connecting rods
New Crankshaft
Carter In-Tank Pump


Last edited by Jsamps1345 on Wed Aug 23, 2017 8:01 am, edited 1 time in total.

Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Tue Aug 22, 2017 10:04 am 
Offline
LOST Member

Joined: Fri May 20, 2011 8:57 pm
Posts: 100
Location: New Orleans, Louisiana
sorry, forgot it was a public forum bad to post email addy

https://1drv.ms/x/s!AjoXnVa96mPNmJJClN-u5oCid3B_ig

_________________
2005 Jeep Liberty CRD 110k miles - working on tb, rockers, arp, camshafts
1985 Mitsubishi Mighty Max 2.0 liter
1989 Vanagon GL


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Tue Aug 22, 2017 5:25 pm 
Offline
LOST Addict

Joined: Sat Apr 17, 2010 3:29 pm
Posts: 1167
minnisp wrote:
sorry, forgot it was a public forum bad to post email addy

https://1drv.ms/x/s!AjoXnVa96mPNmJJClN-u5oCid3B_ig



This chart is missing critical information. Please include a column for any cooling system modifications, the date and time they were done, and what exactly was modified.

All previous participants on the chart should be alerted to this new required information, and encouraged to enter the appropriate information.


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Wed Aug 30, 2017 11:32 am 
Offline
LOST Member

Joined: Wed Nov 19, 2014 4:52 pm
Posts: 133
TURBO-DIESEL-FREAK wrote:
I believe another poll regarding CRD engine timing belts, rocker arms, and ARP stud upgrades would be redundant and might likely muddy the waters even more than they already are.

I think the narrative on these issues is going the wrong way, as a lot of the discussion regarding valve failures, rocker arm failures and head gasket failures so far has been little more than speculation. Comments like "cheaper by the truckload" torque-to-yield head studs and other complaints regarding both the rocker arms and the valves are indicative that the decision regarding the culprit or culprits for the seemingly over-abundance of head gasket failures and valve train component failures has already been made. :(

That said, some testing of the valves by a forum member or an associate of a forum member was supposed to have been conducted, but I do not think the results of such testing has been posted as of yet. Perhaps there is no adequate test available to determine exactly why engine valves fail, and that is why nothing has been posted. :?: :|

Perhaps a better way to go about finding answers would be to have a couple of CRD forum members directly communicate with the actual engineers who designed the R428 engine, and ask them the appropriate questions as to why there seems to be so many problems with the cylinder head and the valve train of the R428 engine. Why were torque-to-yield head bolts used, why are the rocker arms and the valves apparently so weak that they fail often?

I do not believe anyone has tried to contact the V.M. Motori engineers regarding these issues. If I am wrong, and indeed a CRD forum member has contacted the engineers who designed the R428 engine, please post a synopsis of those communications for the benefit of all CRD owners.

spoken like a smart cookie,..btw my mod 1 has been in since may and what a great design I've run full power up the steepest grades in mass, &NYS and it is so much better than the in line stat,some people subscribe to,.


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Fri Sep 01, 2017 11:44 am 
Offline
Moderator
Moderator
User avatar

Joined: Sat Aug 24, 2013 11:36 pm
Posts: 7157
Location: Central GA
Updated statistical data chart with two additional entries!

click to view:> https://1drv.ms/x/s!AjoXnVa96mPNmJJClN-u5oCid3B_ig

_________________
Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited :JEEPIN:
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount

98 Dodge Cummins 24 Valve


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Sat Sep 02, 2017 11:19 am 
Offline
Moderator
Moderator
User avatar

Joined: Sat Aug 24, 2013 11:36 pm
Posts: 7157
Location: Central GA
Updated Chart design!
Click on top left corner (+) to enlarge chart.

Anyone have history of valve failure, please share miaeage so we can add to data!

Image

_________________
Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited :JEEPIN:
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount

98 Dodge Cummins 24 Valve


Last edited by WWDiesel on Wed Apr 25, 2018 1:04 pm, edited 1 time in total.

Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Mon Sep 04, 2017 3:18 am 
Offline
LOST Member

Joined: Sat Aug 04, 2012 11:05 pm
Posts: 275
I added a column for cooling mod(s). Maybe that info should be organized better? I think the cooling mod that might be telling would be the inline T-stat. I think there were some overheating problems with a few members that put an inline in their upper radiator hose.

_________________
JBA 4" lift, IRO Tri-link w/ wwdiesel bracket, JBA sliders, 235/85-16 Goodyear Wrangler Duratracs, Mercedes Benz forged ultralight wheels, Weeks stage 1 and 2, Weeks lift pump and harness, Weeks battery tray and AGM battery, GDE tune, Suncoast TC, updated front pump, HDS 001 T-stat, ARP studs, Front and rear Detroit/Eaton Truetrac LSD.


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Mon Sep 04, 2017 9:10 am 
Offline
Moderator
Moderator
User avatar

Joined: Sat Aug 24, 2013 11:36 pm
Posts: 7157
Location: Central GA
Dent wrote:
I added a column for cooling mod(s). Maybe that info should be organized better? I think the cooling mod that might be telling would be the inline T-stat. I think there were some overheating problems with a few members that put an inline in their upper radiator hose.

Reorganized columns,
thanks

_________________
Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited :JEEPIN:
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount

98 Dodge Cummins 24 Valve


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Tue Sep 19, 2017 11:24 am 
Offline
Lifetime Member
Lifetime Member

Joined: Tue Jul 05, 2005 8:23 am
Posts: 3544
Location: New Braunfels, Texas
Replaced Timing Belt at )cough...cough) 120,000. Nothing else done.

Jim Hulse swung by Texas and we did the whole kaboodle at 192,000 miles...timing belt, water pump, valves and rockers. All valves and rocker were still in good condition. Have had EGR Stealth...then GDE...then Weeks I and II. Probably all helped keeps valves and rockers good.

_________________
Founder of L.O.S.T.
2006 CRD Sport

Mods: GDE Hot Tune w/ 364#@2000rpm/Air Box /3" Str8 Exhaust/ASFIR Alum Skids/245-75R-16 Cooper STT PRO/OME LIFT w/Clevis & 4 Spring Isos/AirTabs/Rigid 10" S2 LED/4xGuard Ctr Matrix Bumper
Drag Strip:Reac=.1078_60ft=2.224_1/8=10.39@64.8mph_1/4+16.46@80.8mph


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Wed Sep 20, 2017 8:32 pm 
Offline
LOST Member

Joined: Fri May 20, 2011 8:57 pm
Posts: 100
Location: New Orleans, Louisiana
will add to sheet as soon as i can

_________________
2005 Jeep Liberty CRD 110k miles - working on tb, rockers, arp, camshafts
1985 Mitsubishi Mighty Max 2.0 liter
1989 Vanagon GL


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Thu Sep 21, 2017 3:18 pm 
Offline
LOST Addict
User avatar

Joined: Tue Jun 04, 2013 1:21 pm
Posts: 2137
Location: Utah
DarbyWalters wrote:
Replaced Timing Belt at )cough...cough) 120,000. Nothing else done.

Jim Hulse swung by Texas and we did the whole kaboodle at 192,000 miles...timing belt, water pump, valves and rockers. All valves and rocker were still in good condition. Have had EGR Stealth...then GDE...then Weeks I and II. Probably all helped keeps valves and rockers good.


Living on the edge :lol:

_________________
2006 CRD - GTB2056 turbo by Dieselguy86, Eco Trans Tune, Lift Pump, Week's, HDS Tstat, Racor Filter, ARP's, OME 790's+Top Plate, JBA 2.5", JBA UCA, Moab's+265/75R16, ARB Bull Bar, 4.10's, TrueTracs


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Wed Oct 25, 2017 8:00 pm 
Offline
LOST Newbie

Joined: Tue Jan 04, 2011 11:46 am
Posts: 30
Pardon my ignorance, but considering new exhaust valves for my liberty and currently ordering parts for my mechanic, I assume their are 8 valves, should I order new seats/springs for those as well? Im also ordering the rocker kit..


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Wed Oct 25, 2017 8:51 pm 
Offline
Moderator
Moderator
User avatar

Joined: Sat Aug 24, 2013 11:36 pm
Posts: 7157
Location: Central GA
theeld wrote:
Pardon my ignorance, but considering new exhaust valves for my liberty and currently ordering parts for my mechanic, I assume their are 8 valves, should I order new seats/springs for those as well? Im also ordering the rocker kit..

Not unless there is an issue with one of them!
Reuse the valve springs and have an automotive machine shop regrind the current valve seats using the proper 3 angle method and then lap in the new valves to the reground valve seats with lapping compound and test for leakage. :wink:

_________________
Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited :JEEPIN:
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount

98 Dodge Cummins 24 Valve


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Thu Oct 26, 2017 12:15 am 
Offline
LOST Member

Joined: Fri May 20, 2011 8:57 pm
Posts: 100
Location: New Orleans, Louisiana
they were able to grind my existing seats and we reused the existing springs. you should get the guide seals too (machinist said to change them and they're not very expensive). i changed all of the valves and glad i did. some of the guides and seats were not exactly aligned. could have been defective and like that from new, or maybe the casting distorted from heat and pressure or bad head bolt torques or maybe all of these.

_________________
2005 Jeep Liberty CRD 110k miles - working on tb, rockers, arp, camshafts
1985 Mitsubishi Mighty Max 2.0 liter
1989 Vanagon GL


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Thu Oct 26, 2017 12:11 pm 
Offline
Moderator
Moderator
User avatar

Joined: Sat Aug 24, 2013 11:36 pm
Posts: 7157
Location: Central GA
minnisp wrote:
they were able to grind my existing seats and we reused the existing springs. you should get the guide seals too (machinist said to change them and they're not very expensive). i changed all of the valves and glad i did. some of the guides and seats were not exactly aligned. could have been defective and like that from new, or maybe the casting distorted from heat and pressure or bad head bolt torques or maybe all of these.

FYI: They make shims to place under the valve springs to take up the clearance lost when regrinding the valve seats. We used them extensively on every head we did a valve job on when I worked in a mechanine shop! The shims are super cheap!!! :wink:

_________________
Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited :JEEPIN:
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount

98 Dodge Cummins 24 Valve


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Thu Oct 26, 2017 12:50 pm 
Offline
LOST Addict
User avatar

Joined: Thu Sep 06, 2007 9:51 pm
Posts: 6297
Location: Somewhere between Heaven and Hell... But it is really hot here on Earth...
This engine has hydraulic lifters and the springs are very strong, so I don't think it would need shims... but that is a lot more than most people think about. I think the shims would be more important on mechanical lifters rather than this design.


Sent from my iPhone using Tapatalk

_________________
Proud supporting vendor of LOST Jeeps
TRAVELING CRD TECH. I come to you!
Need help? Just ask! I've taken it apart more than most.
Email jeep [at] maincomputer [dot] com - BOARD MESSAGING IS BROKEN
Over 125 CRDs currently driving with my timing belt, rockers, or ARP Studs.
Bad noises = REALLY bad things.


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Thu Oct 26, 2017 1:19 pm 
Offline
Moderator
Moderator
User avatar

Joined: Sat Aug 24, 2013 11:36 pm
Posts: 7157
Location: Central GA
geordi wrote:
This engine has hydraulic lifters and the springs are very strong, so I don't think it would need shims... but that is a lot more than most people think about. I think the shims would be more important on mechanical lifters rather than this design.

Type of lifters has nothing to do with it! :roll:
It is all about correct spring tension on the valves!!! In an automotive machine shop, they are used on all types of heads when performing a valve job regardless of the type of lifter, head design, overhead valve, overhead cam, etc...

_________________
Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited :JEEPIN:
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount

98 Dodge Cummins 24 Valve


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Sun Oct 29, 2017 10:17 pm 
Offline
LOST Addict
User avatar

Joined: Thu Sep 06, 2007 9:51 pm
Posts: 6297
Location: Somewhere between Heaven and Hell... But it is really hot here on Earth...
Considering that the springs are compressed more than 3/8" from zero pressure and that even if you somehow installed the seats all the way up in their wells... you still wouldn't have reduced the springs to an uncompressed state.

I do not believe that shims on the springs would be needed in this design if the valve position was altered by grounding. If anything, the preliminary results of the testing suggests that the springs may be too strong if the valves are failing because of cycling fatigue.


Sent from my iPhone using Tapatalk

_________________
Proud supporting vendor of LOST Jeeps
TRAVELING CRD TECH. I come to you!
Need help? Just ask! I've taken it apart more than most.
Email jeep [at] maincomputer [dot] com - BOARD MESSAGING IS BROKEN
Over 125 CRDs currently driving with my timing belt, rockers, or ARP Studs.
Bad noises = REALLY bad things.


Top
 Profile  
 
 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Sun Oct 29, 2017 10:32 pm 
Offline
Moderator
Moderator
User avatar

Joined: Sat Aug 24, 2013 11:36 pm
Posts: 7157
Location: Central GA
geordi wrote:
Considering that the springs are compressed more than 3/8" from zero pressure and that even if you somehow installed the seats all the way up in their wells... you still wouldn't have reduced the springs to an uncompressed state.
I do not believe that shims on the springs would be needed in this design if the valve position was altered by grounding. If anything, the preliminary results of the testing suggests that the springs may be too strong if the valves are failing because of cycling fatigue.

The shims are not that thick! I think you are beating a dead horse here! :roll:

_________________
Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited :JEEPIN:
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount

98 Dodge Cummins 24 Valve


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 63 posts ]  Go to page Previous  1, 2, 3, 4  Next

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 35 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group. Color scheme by ColorizeIt!
Logo by pixeldecals.com