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Today at Atelier Kaz - Private NSX Enthusiast, ex-Honda R&D engineer with F1, Indy/CART background

Eng Refresh, Health Check, etc 34

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JDM spec (550mm compared to UK 500mm) wiper blade assy with proper 'wing' at the driver side and matching longer pair at the passenger one.




Engine bay is pretty much done.
Too hot to carry out detailing so I'll do that once it's cold enough




Going to return the old AUX belts, wipers and wheel lock nut to the owner.




Time for the test driving session.
As the temperature was warmer than the last few days, adjusted the tyre pressure to OEM 40/33psi spec as it will drop slightly when it gets colder.

Unwrapping the car in preparation for the test driving session.
I washed the car before start of the service and then wrapped it so still very clean.

As always, it takes several trials aligning the engine bay cover to minimise the fogging up of the rear hatch glass.
This NSX is coupe model so not too bad but still, with the old tired rubber seals, not easy task.

With Targa model, it takes ages as the engine cover is much heavier than the coupe one resulting in so tired rubber seals allowing vaporised moisture to enter the area above the cover.





Initial test driving session finished with no issues.


Back on the lift for the check up.

No issues and time for the base idle rpm check.
If your engine is healthy and at the right timing as well as clean TH body, you should be able to run the engine at about 600rpm no problem. If it's dirty or not healthy, you will see fluctuating rpm in the order of several 100rpm going up and down or even stall the engine.

Followed by the IG timing check. Again, if it's done properly, you should see spot on at the red marking on the crank pulley.




Removed SCS terminal, tap on the TH pedal briefly and now the idle rpm back to normal 800rpm.
Reset the ECU and run the engine for about 15min to re-learn all coefficient parameters for the closed loop EFI control.
Locked the idle air screw with the liquid gasket.



Ran out of the time for the 30min of 65mph cruising steady speed mode testing for the feedback control of the new O2 sensor. Will do it together with engaging VTEC over this weekend although the weather forecast is not great for Saturday and I don't want to drive the car in wet condition before replacing the tail light assy gasket so probably do it on Sunday.


Nearly at the end of the service.


Kaz



Comments

  1. Pride's Avatar
    Hi Kaz, happy new year mate.
    I've always insisted fitting the drivers side wiper blade on the passenger side as well so as to get the wing and slightly longer length for years now.
  2. Kaz-kzukNA1's Avatar
    Happy New Year to you, too.

    The wiper arm (not the blade) design is different between JDM and UK models as well as RHD and LHD models so please check that you won't scratch the most upper section of the back of the bonnet with the wiper blade when it's not in use or the wiped area is not exceeding the windsheild glass when using different setup.

    Also, there could be local regulations or court cases that may not allow or disadvantage the driver by installing sharp objects (like this wing) at the wiper blade or outside body so please check it first.

    Kaz

  3. Pride's Avatar
    Thanks for info, that explains why wiper BLADE doesn't touch the screen at the far near side bottom corner, but otherwise everything is good.
    No contact on trims and no lifting at over 160mph in driving rain.
  4. Pride's Avatar
    Quote. As always, it takes several trials aligning the engine bay cover to minimise the fogging up of the rear hatch glass.
    This NSX is coupe model so not too bad but still, with the old tired rubber seals, not easy task.

    With Targa model, it takes ages as the engine cover is much heavier than the coupe one resulting in so tired rubber seals allowing vaporised moisture to enter the area above the cover. Unquote.


    Question:
    Hi again Kaz, could this be the reason then why my rear screen always mists/fogs up??
    Although always in my dry but sometimes damp atmosphere garage even in the summer it tends to mist up although no where near as bad as winter.
    The seal is very worn down if not non existent in large areas, so by changing this would that improve it drastically?
    I've always put off changing the weather seal due to its cost and also thinking is it superfluous in what it does, but now reading what have just put in your blog it is important??
    Updated 03-01-2015 at 06:56 PM by Pride
  5. Pride's Avatar
    Hi Kaz, any chance when you get a minute of a reply to my question above?
    Thanks
  6. Kaz-kzukNA1's Avatar
    I don't know the spec of your NSX (Coupe or Targa) so can't provide you with the specific advice but please first clean the internal glass surface of the rear hatch glass. The moisture has to be able to stay on the surface in order to fogging up the glass and thin film of dirt is a good catalyst for attracting the moisture. For cleaning the glass, IPA is your friend. Can be used around your house and also very effective on A/C Evapo disinfection when diluted a little.

    If we are talking about the same rubber seal (the long one along the edge of the eng cover), it's not expensive and same for Coupe and Targa model. Recently, I bought a few for several owners and it was about GBP20 before leaving Japan.
    However, even with the new one, you must adjust the height and position of the eng cover in order to minimise the glass from fogging up.
    If you can close the rear hatch glass with ease, you didn't adjust the cover properly. Straight out of the factory, you will find it hard to close it. Same for the door.

    If you use meshed eng cover or if you remove the cover like me, no more fogging up.

    Kaz
  7. Pride's Avatar
    Quote Originally Posted by Kaz-kzukNA1
    I don't know the spec of your NSX (Coupe or Targa) so can't provide you with the specific advice but please first clean the internal glass surface of the rear hatch glass. The moisture has to be able to stay on the surface in order to fogging up the glass and thin film of dirt is a good catalyst for attracting the moisture. For cleaning the glass, IPA is your friend. Can be used around your house and also very effective on A/C Evapo disinfection when diluted a little.

    If we are talking about the same rubber seal (the long one along the edge of the eng cover), it's not expensive and same for Coupe and Targa model. Recently, I bought a few for several owners and it was about GBP20 before leaving Japan.
    However, even with the new one, you must adjust the height and position of the eng cover in order to minimise the glass from fogging up.
    If you can close the rear hatch glass with ease, you didn't adjust the cover properly. Straight out of the factory, you will find it hard to close it. Same for the door.

    If you use meshed eng cover or if you remove the cover like me, no more fogging up.

    Kaz
    Cheers, I will try replacing rubber and then give your suggestions a try.