Powertrain WTB: Crank Cylinder Sensor (aka Cam timing sensor)

[BFerrar]

1991 NSX, I am looking for the cam timing sensor, I think the part number is 37840-PR7-A03. Thank you very much!

 

[Bram]

I have a used one that was working prior to being removed, because the "black tar stuff" was leaking.

LMK

Bram

 

[BFerrar]

I have a used one that was working prior to being removed, because the "black tar stuff" was leaking.

LMK

Bram

Thank you Bram, I have that same issue with mine. It is still working but has that black tar stuff, which is why I want to replace it before failure.

Do you know if that black tar is coming from the sensor itself? It sounds like this may be common?

How much do you want for the sensor? Thanks, Brian

 

[Bram]

Hey Brian...ok, so your sensor is probably in the same state as the one I have....as far as I know the Black Tar was use to protect the sensor from the heat from the engine, so it may affect the sensor over time is the tar is not present. This is a common issue with most early NSX, however, I'm not aware of any failures because of the running tar....folks don't like the look of it.

I don't think buying my sensor would make sense, because it is the same state as your.....If your sensor failed, then this would be a good replacement, if you cannot source a new one.

Bram

 

[BFerrar]

Hey Brian...ok, so your sensor is probably in the same state as the one I have....as far as I know the Black Tar was use to protect the sensor from the heat from the engine, so it may affect the sensor over time is the tar is not present. This is a common issue with most early NSX, however, I'm not aware of any failures because of the running tar....folks don't like the look of it.

I don't think buying my sensor would make sense, because it is the same state as your.....If your sensor failed, then this would be a good replacement, if you cannot source a new one.

Bram

Wow, I wish I'd joined this forum earlier! What great information Bram. Thank you so much for sharing! This is a big help (and a bit of a relief). Thanks, Brian

 

[Gary W]

camshaft sensor

You can get a new on here:

https://www.oreillyauto.com/shop/b/...car-1992-acura-nsx?q=camshaft+position+sensor

It has the same #'s on the part as the OEM sensor.

gary

 

[BFerrar]

Well that is interesting! Gary, thank you for the information. This is a great find. - Brian

 

[BFerrar]

Thank you all for the quick support and information. My local dealer is going to go get the cam sensor and a water pump at O'Riley to get my beloved NSX back on the road. I will let you all know how it goes. Thanks!

 

[MotorMouth93]

Wow $785 for that is highway robbery.

It's $150 from Honda Japan, still less than $200 after shipping.

The black tar stuff is not indicative of impending failure, it's the potting material melting and dripping down, it's just what the early ones did. I'd much rather run an old one vs spending almost $800 on a replacement.

 

[Ponyboy]

Looks like the sensor ranges from $74 to $255 on RockAuto. The factory sensor is preferable but the others will do in a pinch.

 

[Kres777]

Wow $785 for that is highway robbery.

It's $150 from Honda Japan, still less than $200 after shipping.

The black tar stuff is not indicative of impending failure, it's the potting material melting and dripping down, it's just what the early ones did. I'd much rather run an old one vs spending almost $800 on a replacement.

Hello.
Please, can you give me a link of Honda Japan shop? I need new camshaft sensor. Thank you.

 

[Kres777]

Wow $785 for that is highway robbery.

It's $150 from Honda Japan, still less than $200 after shipping.

The black tar stuff is not indicative of impending failure, it's the potting material melting and dripping down, it's just what the early ones did. I'd much rather run an old one vs spending almost $800 on a replacement.

Is this shop you are talking about? https://www.amayama.com/en/part/honda/37840pr7a02

 

[MotorMouth93]

Yeah that's it. Amayama has been extremely reliable for me.