Thread: 2.7 and 3.0 Td V6 Crankshaft Bearing Failure known manufacturing fault

Just re read this thread, maybe a silly question, but are the original fitment cranks cast and machined or forged and machined? Cant seem to find anything definitive online either. I would have assumed (probably incorrectly) that all cranks in these engines were forgings, not castings.

Cast, if forged they wouldn't snap but that won't help with spinning bearings.

Originally Posted by loanrangie

Cast, if forged they wouldn't snap but that won't help with spinning bearings.

Chicken or egg?
Is the crank fatigued and out of spec and this causes a slight deformation which causes the bearings to catch, spin and ultimately fail - or does the bearing catch, spin and that causes the failed crank.
And no, I don’t want an answer. This topic cracks me up. I’m so spun out by the endless debate. If I hear anything more about cranks I’m going to snap.

a lot of the trouble is wrong oil or it being not changed enough but they also can break thrust bearings lowering the oil pressure.i have reconditioned engine for 7000 au exchange

Originally Posted by Steve1975

a lot of the trouble is wrong oil or it being not changed enough but they also can break thrust bearings lowering the oil pressure.i have reconditioned engine for 7000 au exchange

Thrust bearing wear is real. I recently had my bottom end rebuilt after thrust bearing end play.

Originally Posted by Dfer

How did you go with the engine import? Feedback and costs appreciated.

Sorry, been a while since I've been on line.
The 3.0 Ltr engine I got was from NWS Motor Services in the UK through Jason at Rova Range in Bentleigh. The original quote was $25,000 supply and fit. I opted for a billet crank, replaced coolant hoses (OEM), serpentine belt (OEM) and replaced that plastic coolant thingy with an aluminium unit. Also replaced a couple of valves for the air pump, replaced the battery. So there is well over $4,000 in "extras" The final invoice came to $30,460. It has done over 10,000 k's and seems ok. Been off road and spent a couple of days in Low range and it's doing everything it's supposed to!! Chewed through the oil at first, well, hardly chewed, it used approx 700ml at first but that seems to have settled.

I am happy with my decision to get the rebuilt engine. When I first started looking for a second hand engine I was quoted $17,000 for a 115,000k engine and a further $5,000 for fitting. That with having to replace timing belts either straight up or in another 50-60,000ks, and it was a no brainer for me at least, but obviously not for everyone.

Eddie.

Just an update for anyone who is interested. The new (rebuilt) engine has another 10k on it and it's all very boring. Nothing to report except that oil consumption is now approx zero.
I still can't help but listen to every sound but can't hear anything out of the norm.
So far I am happy to recommend this engine. If anything untoward does happen I will surely post it here.

Originally Posted by DiscoJeffster

If I hear anything more about cranks I’m going to snap.

Cranky Bugger! Not bearing up under the pressure huh?