HELP! What have I done to my baby?

[WhyOne?]

So, amoung the people I worked with on NSX, it is a regular maintenance item to replace the pulley at the time of timing belt change.

Is this also known as a Timing Belt Tensioner or is it a different part altogether?

PS - Martin, sorry to hear about your problem, fingers crossed that it is no more serious than currently diagnosed.

[AR]

Is this also known as a Timing Belt Tensioner or is it a different part altogether?

PS - Martin, sorry to hear about your problem, fingers crossed that it is no more serious than currently diagnosed.

Is the harmonic balancer and is not a big job, but you need a Honda or Custom made tool for this.

Cheers,

AR

[Kaz-kzukNA1]

Is this also known as a Timing Belt Tensioner or is it a different part altogether? ............

Timing belt tensioner is #9&10 in the 1st drawing. The Crank Pulley is #6 in the 2nd one. Also the photo of pulley from above the right side of engine.


You'll need a tool like this one to remove the super-tight crank pully bolt. The size of HEX is different between MT and AT. 45mm for the MT and 50mm for the AT. If I remember correctly, at one point, both MT and AT were using the same pulley on Non-JDM model (Acura??) so be careful. You can easily measure the size by removing the rear right wheel. To check whether you have issue or not, look for the scrach mark at the green circle area. Almost no space there but still you can inspect.


Regards,
Kaz

[AR]

Timing belt tensioner is #9&10 in the 1st drawing. The Crank Pulley is #6 in the 2nd one. Also the photo of pulley from above the right side of engine.


You'll need a tool like this one to remove the super-tight crank pully bolt. The size of HEX is different between MT and AT. 45mm for the MT and 50mm for the AT. If I remember correctly, at one point, both MT and AT were using the same pulley on Non-JDM model (Acura??) so be careful. You can easily measure the size by removing the rear right wheel. To check whether you have issue or not, look for the scrach mark at the green circle area. Almost no space there but still you can inspect.


Regards,
Kaz

Kaz do you have this tool, and would you consider doing the swap for members who have a new Harmonic Balancer?

Cheers,

AR

[NSXGB]

Kaz do you have this tool, and would you consider doing the swap for members who have a new Harmonic Balancer?

Cheers,

AR

. . . I can just picture a queue of NSX's forming outside Kaz's house. . .

So, sorry if I missed it but is it possible to change the harmonic balancer and or the SOS shield without changing the TB?

[markc]

. . . I can just picture a queue of NSX's forming outside Kaz's house. . .

It looks like you should be able to do this with a socket (of the hardened variety) and a breaker bar? The "special" tool doesn't look particularly special.

So, sorry if I missed it but is it possible to change the harmonic balancer and or the SOS shield without changing the TB?

You certainly could change the pulley/harmonic balancer without changing the timing belt but for the price of the belt you might as well do it while you got everything removed and loosend off. Same goes for the water pump... "while you're down there" style

Adding the shield looks very simple with no need to do anything else.

Cheers

Mark

[simonprelude]

If anyone knows the size of the special tool, I have one for the S2000 pulley removal that was made for the supercharger install.

[goldnsx]

You certainly could change the pulley/harmonic balancer without changing the timing belt but for the price of the belt you might as well do it while you got everything removed and loosend off. Same goes for the water pump... "while you're down there" style

One small note here: It's not necessary to do all the rest while you're in there if the TB job is not due. A new pulley or the shield can be swapped out within 1 hour whereas changing the rest adds xx hours or xxxx £££. The prices of the parts (TB) is neglectable to the hours spent to change it which best means pulling the engine! We did this two times ourselves and have feedbacks of people doing it without pulling the engine that next time they're pulling it also as you nearly can't work reasonably on the engine if it's installed.

[NSXGB]

My pump and TB were changed 1.5 years ago so would rather not change unless totally necessary. Going to order one of the shields from SOS, good insurance policy.

[AR]

Same goes for the water pump... "while you're down there" style

That is what I wanted when I had my TB/WP and the rest but Honda Uk was backordered until who knows!!! Now I got my harmonic Balancer but no special tool.