Sorry i cant be of help but fair play on stripping the old engine and fitting the new engine

Thanks Maxwell it was a lot easier thanks to Kev as he posted step by step instructions with pictures here on the forum for how to remove the engine which were very helpful. I just had to reverse the process to get it back in. It was very tricky getting the mounting bolts in though i must say, especially trying to line up the bottom of the engine with the swingarm bolt. Looking forward to trying to repair the knackered one still.

Did you get to the bottom of the cause (excuse the pun)?

Yes I did the 3rd pinion gear blew to bits and smashed up the bottom end. I blame myself as I should have changed the oil after riding to Paris and back flat out. The oil looked pretty ****ed when I drained it.

Thanks, yes Kev kindly told me to change out 3rd and 4th gears if I am going to strip the engine (suspected big end gone, just waiting for bore camera off eBay ).
Will post the photos of how I�ve got the Offtheroad oil cooler fitted to my Tenere.
Runs a lot cooler. As you know oil deteriorated exponentially for ever 10 deg C above 80 deg C. But on downside, oil that is run too cold will absorb moisture and cause rust corrosion, so worth running with thermostat.

An aftermarket oil cooler? Never knew they did them but can't be a bad thing I guess.

Tenere finally up and running again.
Big end fine, all the play was in the worn key.
So saved myself a small fortune, and took Minky’s advice and torqued up crankshaft nut to 120Nm (after replacing worn crankshaft washer for third time).
Used loctite 660 with loctite 7240 primer on keyway and key.
See my post on larger transition fit key (so important on big singles)
See:
https://www.xt660.com/showthread.php...ferrerid=20974

Will post oil cooler on seperate thread��

See oil cooler thread:

https://www.xt660.com/showthread.php...ferrerid=20974