JK CRD Big End Failures

[josh9465]

I was driving 110km/h had slightly higher coolant temps. 112C in 30C temps. Then followed by a loud ticking noise.


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[doum]

Hi guys from Greece. My kk crd (with the same engine as yours) died at 148.000 kms. I dont know why. I was just cruising at 120 and the same ticking started. Dont remember which cylinder failed, I must ask my mechanic but I think is the same problem just like you. I am sure that at least 5 same engines failed. I changed mine and found one with 4.000 kms on the clock. Note: no ecu tune or something else on my engine, just litlle bigger tires.

[Duk]

What have people done for a fix,
Rebuild, 2nd hand, are short blocks available ?

[josh9465]

What have people done for a fix,

Rebuild, 2nd hand, are short blocks available ?

I did a rebuild. Im sticking with the recommended oil. I’m using Penrite enviro+ 5w40. No DPF.


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[Duk]

So mine spit the dummy at 170,000 doing 100km/hr done the motorway.
2008 JK
Manual box
ECU tune = no
EGRremoval = no
Catch can fitted = no but had one in the shed to fit
Service interval 10,000 Km
Oil used = FUCHS 5W-30 Proflex XTL - meets all specs
Tyre size 285-70-R17 (33")
Ratios 4.1
Not under load at time of failure
Has done some towing - maybe 5%
#2 big end went

[Clarky]

I did a rebuild. Im sticking with the recommended oil. I’m using Penrite enviro+ 5w40. No DPF.


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Consider switching to Penrite HPR-5, It is the same spec as enviro but is full zinc so it has better anti-wear properties. Its a 229.5 where enviro is a 229.51, the 1 indicates its a low ash and low zinc that is suited for DPF's.

I contacted Penrite and they recommended it to me once they knew I didn't have a DPF.

[MidnightMods]

$500 for a new DPF. $10,000 for a new motor.. I think using the oil with extra zinc is worth the trade off.

[josh9465]

Consider switching to Penrite HPR-5, It is the same spec as enviro but is full zinc so it has better anti-wear properties. Its a 229.5 where enviro is a 229.51, the 1 indicates its a low ash and low zinc that is suited for DPF's.



I contacted Penrite and they recommended it to me once they knew I didn't have a DPF.

Engine Oil Viscosity (2.8L Diesel Engines)

For vehicles equipped with a Diesel Particulate Filter (DPF), 5W–30 ESP fully synthetic, low ash oil that meets DaimlerChrysler Material Standard MS-11106 must be used.

For vehicles not equipped with a DPF, 0W-40 ESP fully synthetic oil that meets DaimlerChrysler Material Standard MS-10725 may be used.

I got the above from an online service manual.

For non DPF I can only find Shell Helix Ultra 5W-40 that complies to MS-10725.

Wonder if anyone was using that oil and had a bearing go?



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