Thread: 3.0 TDV6 broken crankshaft / engine rebuild

Looking at the photos of the crank there seems to be some sort of tubular hollow in the crank almost like there was some sort of void in the steel.

Originally Posted by chuck

Looking at the photos of the crank there seems to be some sort of tubular hollow in the crank almost like there was some sort of void in the steel.

Looked like an oil passage to me.

If you get the crank to Newcastle somehow, I have a guy who teaches failure analysis. Has done for 20 years. Could give him a look

You have to be very careful re-using a snapped crank block. The last one I removed I had to sledgehammer the broken pieces of crankshaft out in order to remove the torque converter (I could not turn the engine).
The 2.7 engine is almost the same as the 3.0, the only noticeable difference being the breather outlet in the v of the block (the hole comes from a slightly different position). The modification is due to the 3.0 fuel pump being slightly taller.
I routed the breather pipe to fresh air to overcome the difference, but you could cut and shut the original breather unit to fit.
The only other update was to replace the main and big end bearing shells. All of the engines I have dismantled whether running or not have had noticeable wear on the shells, with many having missing thrust washers.
The 2.7 engine performs well, its hard to tell the difference.
This is a very good site to visit; DISCO3.CO.UK - Index

Originally Posted by johnhorgan

You have to be very careful re-using a snapped crank block. The last one I removed I had to sledgehammer the broken pieces of crankshaft out in order to remove the torque converter (I could not turn the engine).
The 2.7 engine is almost the same as the 3.0, the only noticeable difference being the breather outlet in the v of the block (the hole comes from a slightly different position). The modification is due to the 3.0 fuel pump being slightly taller.
I routed the breather pipe to fresh air to overcome the difference, but you could cut and shut the original breather unit to fit.
The only other update was to replace the main and big end bearing shells. All of the engines I have dismantled whether running or not have had noticeable wear on the shells, with many having missing thrust washers.
The 2.7 engine performs well, its hard to tell the difference.
This is a very good site to visit; DISCO3.CO.UK - Index

? The major difference is the stroke of the crank and the size of the bore of the block which are both greater.

Originally Posted by Pippin

? The major difference is the stroke of the crank and the size of the bore of the block which are both greater.

And a heap more power and torque.

Originally Posted by PerthDisco

And a heap more power and torque.

Which may be the source of the high number of bearing/crank failures!

What build date and kms travelled for this vehicle please?