Who needs the EJ25 belt guide 13145AA021? Manual transmissions!

NOTE: I made another video with a more extreme demonstration.
The camshaft is locked with a Vise grip ---- See • Subaru EJ25 timing bel...
Subaru Manual Trans (MT) belt guide 13145AA021 is necessary to prevent timing belt slippage if the engine is "forced backwards" by a manual transmission.
I have had Subaru EJs - in manual transmission vans - for 24 years - and this is the first time the problem happened to me. It's uncommon, but it is a risk.
See the other video: • Subaru EJ25 timing bel...
As expected it is advised to keep all the components in good order, belt tensioner, idler pulley bearings, water pump & timing belt.

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