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

All of the spark plugs were over torqued
especially the one at #4 cyl.

It was also showing faint misfire or rough idle rpm.






For some reason, it was using the heat rating #7
instead of #6 on all six plugs.

For a short period, Honda did use #7 on specific models but then ...

Tags: ig coil, ig coil cover, spark plug

Categories

Health Check Service , Engine/Tyre

As reported earlier, there was no gasket used at the
connection points between the test pipe and back box
resulting in exhaust gas leakage.

Also, there was trace of carbon at the donut gasket at
the swivel joint of the header suggesting that it was leaking
from both the front and rear joints although
I couldn’t feel it at the idle rpm.

Initially, I thought I should not install the triangle gaskets ...

Updated 19-05-2013 at 10:48 AM by Kaz-kzukNA1

Tags: air cleaner element, air filter, compression check, exhaust gasket, ig coil, ig coil cover, spark plug

Categories

Eng Refresh Stage 1 + LMA

Preparation for the compression check
before start of the Engine Refresh.


So much debris even under the IG coil cover so
had to blow them away before removing the IG coils.








Surprised that these spark plugs were not
replaced until now.


...

Tags: ig coil, ignition coil, spark plug

Categories

Eng Refresh Stage 1 + LMA

Started to work on another NSX.


The service menu is to carry out the Eng Refresh to
replace the TB/WP/etc and also install aftermarket
header at the same time.








The owner had to drive through the salty gritting road
due to recent heavy snow and by the time he arrived ...

Updated 03-04-2013 at 02:09 PM by Kaz-kzukNA1

Tags: eng refresh, ig coil, oil seepage, spark plug

Categories

TB/WP/Valve Service

At the time of annual service, I recommend the owner to
carry out the compression check.
This will at least confirm the condition of the upper part of
your engine and by building up the compression history,
you may be able to spot the sign of issue.

It will also help if you keep monitoring the fuel mileage
every time when you fill up your tank.





...

Updated 08-03-2013 at 04:44 PM by Kaz-kzukNA1

Tags: compression check, ig coil cover, spark plug, th body, th butterfly, throttle body, throttle butterfly, valve clearance

Categories

Engine/Tyre , Fuel and Emissions