 throttle body overhaul, one moving part |
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| r3dplanet |
 Apr 10 2010, 05:50 PM
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#1
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Senior Member  Group: Members Posts: 679 Joined: 3-September 05 From: Portland, Oregon Member No.: 4,741 Region Association: None  |
So...
... the throttle body. For kicks I pulled mine out (from an early 1.7 liter) so I could clean out the TPS. I cleaned the TPS, but I'm underwhelmed with the throttle body itself. The revolving plate jiggles, to my mind, far too much. It's sloppy and wiggly and slappy. Also, I can't find an intake gasket anywhere. I'm guessing replacements are unavailable. Does anyone overhaul these? Or are there how-to tricks on making them nice again? I have a bucket of throttle bodies for my BMWs, and I'm making comparisons. Maybe I shouldn't. Last, what about the gasket? It's cone-shaped and impossible to cut from gasket material. What have others used here? Thanks for reading. |
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| ConeDodger |
Apr 10 2010, 05:59 PM
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#2
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Apex killer! Group: Members Posts: 23,580 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California 
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QUOTE(spankmeister7 @ Apr 10 2010, 03:50 PM)  So... ... the throttle body. For kicks I pulled mine out (from an early 1.7 liter) so I could clean out the TPS. I cleaned the TPS, but I'm underwhelmed with the throttle body itself. The revolving plate jiggles, to my mind, far too much. It's sloppy and wiggly and slappy. Also, I can't find an intake gasket anywhere. I'm guessing replacements are unavailable. Does anyone overhaul these? Or are there how-to tricks on making them nice again? I have a bucket of throttle bodies for my BMWs, and I'm making comparisons. Maybe I shouldn't. Last, what about the gasket? It's cone-shaped and impossible to cut from gasket material. What have others used here? Thanks for reading. Good questions... I would think that the sloppy shaft is an issue. It would leak air and effect idle. There is someone making the 2 liter intake gasket but I do not recall hearing of anyone making the 1.7. Good luck... |
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| TheCabinetmaker |
Apr 11 2010, 08:20 AM
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#3
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
the gasket is a piece of cone shaped rubber. Try the Cap'n, or HPH for a used one.
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| r3dplanet |
Apr 11 2010, 09:27 AM
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#4
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Senior Member Group: Members Posts: 679 Joined: 3-September 05 From: Portland, Oregon Member No.: 4,741 Region Association: None |
QUOTE(vsg914 @ Apr 11 2010, 07:20 AM) the gasket is a piece of cone shaped rubber. Try the Cap'n, or HPH for a used one. HPH? |
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| Dave_Darling |
Apr 11 2010, 11:08 AM
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#5
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914 Idiot Group: Members Posts: 14,982 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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High Performance House in Redwood City CA. http://www.highperformancehouse.com . Rich at HPH has at least ten of everything for a 914... Except for body panels, where I think there are a few he may only have two or three of--in some colors.
George at AA more than likely has used ones too. Mike Cooley ("Cooltimes" here on the board) re-bushed a few throttle bodies back when. He used a lathe, I think, to bore the throttle shaft holes oversize, and then installed (pressed??) bushings in. I think the wear was almost entirely in the throttle body, not the shaft. Hopefully he will see this thread and chime in about what he did. IIRC, after he got rid of his lathe, he tried again with a drill press and was not happy with the results. So it likely requires the lathe or a mill to do the job well. --DD |
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| McMark |
Apr 11 2010, 11:22 AM
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#6
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
The gaskets are NLA. Used ones can be made to mostly work by adding some sealant.
George at AA said he was working on producing new ones. But I have no idea when that's supposed to become available. |
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