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LN Engineering Retrofit Kit Instructions - Rev 18 Jan 14. state the following:
Step 6. Lock camshaft in head with tensioner accessed from underside of the engine, closest to flywheel.
Which head? Challenge is that there exists two tensioners that can (kind of) match to above description.
When looking towards the flywheel, about 10 inches left from the IMS flange, under the engine, you will find a horizontally aligned tensioner. This should be the IMS chain tensioner and this one is closest to flywheel, however it is not located "in head".
When looking towards the flywheel, about 15 inches right from the IMS flange, under the engine, you will find a vertically aligned tensioner. This should be the cylinder 1-3 camshaft chain tensioner and it is located beneath bank 1, second closest tensioner to flywheel.
Now, which one of the banks should I lock? Look again at the instruction text and notice that both are close to flywheel and underside of the engine :-)
Step 7. Remove the IMS to crankshaft chain tensioner as well as well the chain tensioner on the cylinder head for which you have locked the cam.
Well, this depends on which bank I locked.
My pick would be to lock bank 1. After all bank 1 chain is directly coupled with the flywheel side of the IMS. Then remove both tensioners visible on my image.
My plan is to follow LN's instructions by the book and I do understand that I am solely responsible of the outcome. The only exception is that I'd like to lock all my cams (not only bank 1 but also bank 2), I can fabricate another cam lock tool, I assume this is safe thing to do.
Would you agree?
PS. Would be great if next revision would add wording "lock bank 1" instead of "lock camshaft in head with tensioner closest to flywheel"