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

In case I had to place further parts order to Japan, decided to disassemble the engine as much as possible before updating the blog.

Already all 4 camshafts were removed and about to take out the rocker shafts so better catch up with the blog updates…..









As expected, had fun dealing with this heavily corroded bolt.
I don’t know why people uses such huge torque on some of the TB lower cover bolts yet sometimes, the bolts are missing or just finger tight…..

Finally, came off using the nut grip tool.










While the cam timing was correct, the TB tension was really loose.






In fact it was so loose that the TB was producing lots of rubber dust and leaving trace inside the TB mid cover as well as at the back plate.
Probably it was hitting it many times.










The old spec WP and thus, it’s the original one from the factory.
Quite surprised that no one replaced it until now.
The coolant seep hole was nearly blocked with build-up of seeped coolant over many years.















When I removed it, it showed another reason why one should replace WP at the time of TB service regardless of the mileage.
You can't predict what will happen until the next TB service and obviously, you can see this side of WP without removing it.

The impellor was already showing the rust and the upper section of the gasket was already breached and leaking the coolant.
The bearing was also making noise and not smooth.
Glad the owner brought the car to me this time.