Throttle Body Options

Talk and Tech about turbocharged 924/944/968 cars
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gruhsy
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Zero dollars and zero cents.

I just like working on 951’s and 968’s

Spencan wrote: Tue Jul 11, 2023 3:23 pm Just out of curiosity, how much do you charge for this service?

#21

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gruhsy
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Sorry I missed your question on this page.

You need 3 small orings

The rest you are correct on.

This is the 951 throttle body.

I have not taken apart a 944 or 968….yet :)
Spencan wrote: Tue Jul 11, 2023 11:31 am So correct me if I’m wrong here, I will need 1 large O-ring, 2 small O-rings, no flash contact cleaner, and 2 small circlips?

#22

kjell
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Do you know if those O-rings are the same size on an N/A car? I've got a 1986 944 N/A with the most porous throttlebody seals I've ever seen and keen to try to buy some parts before taking it apart. I have been looking everywhere for an answer! Thanks!

#23

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gruhsy
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If you can measure the size of the throttle shaft and post a couple pics I can take measurements of the 951 kit when I get home

#24

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Tom
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I don't know if they are the same, but --at least where I live-- if I get my order into McMaster by 4pm, it shows up the next day, usually in the morning!

#25

kjell
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Thanks!
I'm all the way over in England, but can still get O-rings pretty easily online if I know the sizes! I'll measure tomorrow and let you know!

#26

kjell
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Pulled the TB and did some measuring, looks like this:
Image

I think I may need a larger o-ring, how does yours measure up?

#27

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gruhsy
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Use a brass of soft pic to remove best practice.

951 throttle shaft is 8mm same size.

That means you will need a 2mm by 8mm O-ring.

The O-ring has to match the shaft size.

7mm is too small of diameter to fit on the shaft.

Confirmed by the bag of 7mm ones that I posted on an earlier post ….for a different use.

Width is 2mm

On the 951 you need two in the bearing on the TPS sensor side and one on the throttle cable side.

Hope that helps.
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#28

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mwc951
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It went through 3 Arnnworx kits to rebuild 1 throttle body.
The damn butterfly screws were seized, kinked a couple o rings, PITA.
Doing the head gasket or clutch wasn't near as bad as rebuilding the TB!

#29

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