Chain ramp replacement...gaining access?

[rah rah 986]

Originally Posted by BYprodriver

When you replaced the tensioners did you install the updated IMS tensioner with the large preload spring? It is critical to optimize the issue. If you remove it you can inspect the IMS tensioner paddle wear button for wear. If it is worn down flat, you have excessive clearance requiring removal of the crankshaft housing to replace the paddle.

When you refer to the removal of the crankshaft housing, is that synonymous with splitting the crankcase?

[flaps10]

Originally Posted by rah rah 986

When you refer to the removal of the crankshaft housing, is that synonymous with splitting the crankcase?

Yes. There is no way to access the plastic chain ramps for the IMS drive chain without splitting the case.

You could replace all three tensioners, the outer ramps for the vario cam to cam chains, and with some awkwardness the long ramps for the chains that run from the IMS to the heads.

That center chain and ramps are in there for the long haul