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I've got the three chain tensioners sitting on the shelf waiting to change with the oil in few weeks.
From the bottom, the IMS (I think) tensioner is the easiest one - totally exposed for a socket. The other one accessible from the bottom is "fenced" by a couple of metal coolant tubes. Can the coolant tubes be temporarily moved out of the way by undoing their straps to gain sufficient access to the tensioner? Or, do the tubes have to come out by decoupling them from their in and out rubber hoses? (I'm trying to avoid cracking open the coolant system...)
Does the cam have to be locked in TDC with a pin through the pulley hole? Is there still a chance that any of the three chains could jump a tooth while removing the existing tensioner or putting in the new one? I plan to complete each tensioner completely before moving to the next one (two tensioners will never be out at the same time).
Any other tips or tricks?
Thanks for any advice.