ard

Hi,

just cleaned the ISV on my 95 C2, following the instructions on p-car.com.

What, if anything do you use to lubricate the rotating assembly inside the ISV? I was gravitating toward either WD-40 or Silicone spray.

Disclaimer: I don't mean to start a religious war over the "right" lubricant. Just what others have found to work well. I am worried that using the wrong lubricant could lead to the assembly gumming up quickly due to the ambient heat.

Thanks

/alex

Edward

Hi Alex,

I haven't done this DIY-er yet, but I'd never use WD40 ...just not a good lube and attracts dirt/grit like crazy. Given the two choices, definitely go with the Silicone spray. It's cleaner and stays dry. Perhaps one who's already done this can chime in?

Edward

chris walrod

I just did this on a buddies car. Since this guy see's a lot heat (soak) being on top of the engine, I would clean and let it remain dry. WD40 is water based and would last long. Dry is my vote

kkim

I use a teflon based spray lube called Tri Flow.

JasonAndreas

NEVER USE SILICONE ON ANY PART OF THE INTAKE OR ENGINE unless it specifically says on the bottle/tube/package "Oxygen Sensor safe". You will kill the O2 sensor within a few miles of driving. For any low-durometer rubber or plastic that isn't an o-ring stick with isopropyl or rubbing alcohol as a lubricant (this tip came from my sales/engineer rep at Dow-Corning) It dries very quickly and leaves no residue.

dhicks

I just cleaned my and left it dry and clean...it was rotating very freely without lub....and I thought that to put anything in there was a bad idea......dirt attractor and where would it go if it was sucked in????

Toga

me too!

Rick Lee

I think I used brake cleaner.

dhicks

Yeah, brake cleaner cleans the yuk out but then evaporates leaving no lubricant....that is exactly what I did.....I used nearly a whole can the first time I cleaned it!!!!

Edward

Good to know ...Thanks, Jason!

Edward

Mark in Baltimore

I left mine dry after using a citrus-based cleaner. Since it moved so freely and without any stickiness, I never even thought to lube it. Hopefully, it's the right approach??

ard

Thanks for all the replies.

I will leave it dry as the assembly is moving freely after having been cleaned with carb cleaner.

/alex

deleonl1

This is what we do on Saabs:

http://pages.infinit.net/mlbriand/saab/iac/page3.html

Looks like my Saab 900 uses the same part.

GabiOsz

Mine dosen't move freely, how is it supposed to move?

993inNC

It should rotate somewhat freely like a propeller but I believe with slight resistance.