Final Touch
by
, 13-09-2015 at 09:37 PM (2349 Views)
After spending some time installing the rear sash and adjusting the glass alignment at the left side door, carried out another showering test on both side doors.
Happy with the result so time for the test driving session to look for any wind noise.
Before going out for the test driving session, carried out the usual check-up.
Considering the cooler outside temperature, decided not to use the lower tyre pressure and set them to the OEM level on this occasion.
As reported long time ago, depending on the luck or batch of the header tank, the coolant could seep out from the bonded section of the header tank even within a few years after replacing it with a new one.
It’s not structure fatigue or stress from external force as you don’t just replace it without pre-caution (at least with the ones that I replaced).
NSX uses higher cooling system pressure compared to other ordinary production cars and considering the thermal shock, the designers took these into consideration at the drawing level and hence, the complicated internal structure and bonding method using plastic material.
The issue is more of manufacturing process but on top of this, even after a few years, you won’t be able to check the fluid level without using the flashlight as the tank colour turns into creamy yellow and no longer transparent.
To me, this is a huge issue for any drivers and the manufacture should have done something to fix it.
The coolant level haven’t dropped so it’s just a tiny seepage and just need to keep eye on this as it’s too late for claiming under Honda warranty as it’s just about 3 years old.
Went out for the test driving session.
At about 50mph, I started to notice some wind noise with constant frequency at each speed range but couldn’t feel any air flow around the edge of the glass. Strange.....
So, lowered the window completely and found out that exactly the same frequency noise was still there.
It’s not easy to tell but seemed to be coming somewhere around the B-pillar black metal panel or even from lower section.
So, it’s not the air getting inside the cabin through the edge of the glass and now I understood why I didn’t see any water getting inside the cabin despite the wind noise.
I think I found the cause of the wind noise so will show it to the owner.
By the way, returning the old right side window regulator and old parts removed in the past so created small box and placed it inside the boot.
Although I used strong stream of water for the showering test, I prefer testing it under the real raining environment so kept the car outside as there was heavy shower forecasted.
I also want to drive the car under the wet condition as the air pressure will change the alignment of the window glass and may result in water seeping into the cabin.
Well, it rained but nothing like heavy shower. The sun even came out so no way I can test it properly..... Thank you BBC weather app.....
As the owner cant’ collect the car for a while, I’m going to try the same test on Wednesday as it should be heavy rain, I hope the weather forecast is correct this time......
For now, thank you for using my service and hope you will enjoy the nice looking and functional new parts around the door section.
Regards,
Kaz