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 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Mon Aug 21, 2017 11:08 pm 
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Joined: Fri May 20, 2011 8:57 pm
Posts: 96
Location: New Orleans, Louisiana
newly formatted spreadsheet https://1drv.ms/x/s!AjoXnVa96mPNmJJClN-u5oCid3B_ig

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


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 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Tue Aug 22, 2017 9:15 am 
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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.

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 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Tue Aug 22, 2017 10:04 am 
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Joined: Fri May 20, 2011 8:57 pm
Posts: 96
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


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

Joined: Sat Apr 17, 2010 3:29 pm
Posts: 685
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.

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Jeffrey Allan Bauer
4J/1G Hi Performance Engine Thermostats
3727 - 117 Street N.W.
Edmonton, Alberta, Canada
T6J 1S5

Tel: 1-780-434-2324
Mobile: 1-780-844-0135
E-mail: INTCOMBUSTION2@hotmail.com


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

Joined: Wed Nov 19, 2014 4:52 pm
Posts: 124
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,.


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 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Fri Sep 01, 2017 11:44 am 
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Joined: Sat Aug 24, 2013 11:36 pm
Posts: 2976
Location: Central GA
Updated statistical data chart with two additional entries!

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

_________________
2005 Jeep LibertyCRD Limited :JEEPIN:
Blk Brush Guard/Hella's
Ironman Springs/Bilstein's
Yeti Stage4 MaxTune
Weeks ElbowKit & Battery Tray
NO FCV/EGR
Samcos/ProVent
SunCoast&Transgo
Carter Intank-pump
2mic. Sec.Fuel Filter
Flowmaster/NOcat,
V6 Airbox
GM11 blade fan / Hayden HD clutch
98 Dodge Cummins, 5"exh. Viair, Huge K&N


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 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Sat Sep 02, 2017 11:19 am 
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Joined: Sat Aug 24, 2013 11:36 pm
Posts: 2976
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

_________________
2005 Jeep LibertyCRD Limited :JEEPIN:
Blk Brush Guard/Hella's
Ironman Springs/Bilstein's
Yeti Stage4 MaxTune
Weeks ElbowKit & Battery Tray
NO FCV/EGR
Samcos/ProVent
SunCoast&Transgo
Carter Intank-pump
2mic. Sec.Fuel Filter
Flowmaster/NOcat,
V6 Airbox
GM11 blade fan / Hayden HD clutch
98 Dodge Cummins, 5"exh. Viair, Huge K&N


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 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Mon Sep 04, 2017 3:18 am 
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Joined: Sat Aug 04, 2012 11:05 pm
Posts: 196
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.

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JBA 4" lift, JBA bolt on 4-link, JBA sliders, 32 x 11.5 x 15 Goodyear MTR w/Kevlar, 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.


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

Joined: Sat Aug 24, 2013 11:36 pm
Posts: 2976
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

_________________
2005 Jeep LibertyCRD Limited :JEEPIN:
Blk Brush Guard/Hella's
Ironman Springs/Bilstein's
Yeti Stage4 MaxTune
Weeks ElbowKit & Battery Tray
NO FCV/EGR
Samcos/ProVent
SunCoast&Transgo
Carter Intank-pump
2mic. Sec.Fuel Filter
Flowmaster/NOcat,
V6 Airbox
GM11 blade fan / Hayden HD clutch
98 Dodge Cummins, 5"exh. Viair, Huge K&N


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

Joined: Tue Jul 05, 2005 8:23 am
Posts: 3539
Location: San Antonio, 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.

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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


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

Joined: Fri May 20, 2011 8:57 pm
Posts: 96
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


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 Post subject: Re: Poll: Have you changed your timing belt, rockers, added
PostPosted: Thu Sep 21, 2017 3:18 pm 
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Joined: Tue Jun 04, 2013 1:21 pm
Posts: 1694
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:

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The Red Rocket-2006 CRD-400 ft-lb tune, Eco Trans Tune, Week's Kit, Mishimoto Hoses, Airtex Lift Pump, HDS Tstat, 2 Micron Racor, ARP's, OME 790's+top plate+clevis, JBA 2.5" rear+Iso, JBA UCA, Moab's, 265/70R16 Duratracs, ARB Bumper

2014 F150 EcoBoost


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