Today at Atelier Kaz - ex-Honda R&D, F1, Indy/CART engineer

Despite the valve timing issue,
very impressed with the state of the internal parts of the engine.








Front and rear bank cam shaft area.

These photos were taken immediately after removing the valve covers.
They were just so clean...... Impressive.......








Same things can be said on the valve covers.

Bit too much liquid gasket being used but apart from that,
even the front cover was so clean.
Normally, with this year model, the front valve cover will show residue of
blowby gas due to the direction of the passage but almost none observed.
Very clean.







The rear TB cover.

As suspected, the intake cam pulley chewed in to the cover quite deeply.










Also, there was deep marking due to the loose TB tension and
on top of this, there were lots of scrach makings showing that someone really
struggled to install this cover during the previous TB service(s).

I think I must replace this cover with the latest spec one.








The front TB cover.

The marking from the cam pulley was minimum so I’m going to re-use this one.











The proof of low mileage and low heat environment.

Unless it was replaced in the past (very unlikely),
the black potting of the CYL/CRK sensor was not even melted yet and thus,
no black marking on the cover plate surface nor at the A/C compressor bracket.

This potting will melt after some mileage even after you replaced it or
if the engine was running for a few hours under the hot climate or
the engine was stopped and the car was kept in the hot place.






Looks like the TB tension adjuster was re-used and not replaced.

Even at this low mileage, small amount of grease was splashed and
quite rusty.

You may be able to see how loose the TB is at the upper side of the adjuster.


More to follow later.

Kaz