Oil Pan 02
by
, 27-01-2011 at 11:42 PM (3841 Views)
The rubber gasket was not installed properly and misaligned resulting in oil pan not seating properly.
In fact, it managed to cut through small part of the rubber gasket causing more leakage.
From the service history, it looked like this was done while this NSX was in Japan.
Because of the oil leakage, someone also tried to tighten the fixing bolts and nuts further, making the issue even worse.
This resulted in deformed top section of the oil pan.
Typical mistake for working on aluminium oil pan.
Peasonally, I think it is also down to the wrong torque spec in the Workshop manual as well.
Using 14Nm on the combination of rubber gasket and aluminium pan with this typical notch at the mating surface is not a good idea…
Despite of using so much liquid gasket, there was no trace of it at the Oil Pump and Left side cover mating area so looks like someone in Japan didn’t follow the manual.
There is an interesting article on Prime recently about the usage of the liquid gasket – Honda bond.
http://www.nsxprime.com/forums/showthread.php?t=145007
I have never spoken or even exchanged an email with Larry but just reading other posts on Prime, he is probably one of the most experienced NSX specialists in the world.
It’s interesting to see his comment and the different approach in Japan.
In Japan, there are several NSX specialists and as far as I know, all of them use liquid gasket on cam plugs, oil pan, etc but they don’t use the Honda bond.
Honda bond in Japan is gray colour and in UK, majority of Honda garages are using the black one. Not sure about the one in US…
Instead of Honda bond, NSX specialists in Japan tend to use the one from the specific chemical company.
I also use it for my TB/WP/Valve service.
By using this specific one, we found that it prevents the oil leakage for longer period than assembling the parts without it.
I’ll just follow what I learnt from my master and keep using the same products from this company in Japan.
Scraped off all of the remaining liquid gasket and cleaning the area to create oil free surface before applying my favourite liquid gasket.
Time to take shower as my hair was covered in dust even wearing the cap…