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 Throttle body top plate question

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Sleeperwagon



Posts : 8
Join date : 2019-05-10

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PostSubject: Throttle body top plate question   Throttle body top plate question Icon_minitimeTue Jun 04, 2019 12:28 am

Probably a dumb question but here goes- I got a replacement gasket set for the throttle body because the rubber top plate gasket was getting swollen and distorted. The replacement fiber gasket is cut out around 2 projections on the underside of the plate. There is no supporting metal around one of them, and the gasket doesn't actually seal around either. Neither seems to be a passage and I can't for the life of me figure out what either is for. Do the aftermarket dress-up plates even have them? What do they do?
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Sleeperwagon



Posts : 8
Join date : 2019-05-10

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PostSubject: Re: Throttle body top plate question   Throttle body top plate question Icon_minitimeTue Jun 04, 2019 12:32 am

Pic for clarity-

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Sleeperwagon



Posts : 8
Join date : 2019-05-10

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PostSubject: Re: Throttle body top plate question   Throttle body top plate question Icon_minitimeTue Jun 04, 2019 12:41 am

Throttle body-

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81X11

81X11

Posts : 9876
Join date : 2010-06-23
Age : 45
Location : Round Rock Texas

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PostSubject: Re: Throttle body top plate question   Throttle body top plate question Icon_minitimeTue Jun 04, 2019 10:59 am

I removed the rubber inner portion of mine years ago, and just replaced the gasket that you have in your pic. You'll have a vacuum leak if you run it without the gasket.

-Mike
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Sleeperwagon



Posts : 8
Join date : 2019-05-10

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PostSubject: Re: Throttle body top plate question   Throttle body top plate question Icon_minitimeTue Jun 04, 2019 9:48 pm

I'm not planning on running it without the gasket, just trying to figure out what the little plastic projections that stick through the gasket are there for. They seem to have no purpose
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jayoldschool

jayoldschool

Posts : 2544
Join date : 2009-06-14

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PostSubject: Re: Throttle body top plate question   Throttle body top plate question Icon_minitimeTue Jun 04, 2019 10:12 pm

I'll guess L98 TB. No google.
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Fix Until Broke



Posts : 22
Join date : 2019-04-05
Location : Southeast Wisconsin

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PostSubject: Re: Throttle body top plate question   Throttle body top plate question Icon_minitimeTue Jun 04, 2019 10:32 pm

Maybe they're for assembly purposes? So the person putting 100 of these on an hour can just set it on and not have to worry about lining up any holes to thread the bolts in?

Something like this is not typically a big deal to us working on our own car, but when you have to put a lot of these on all in a row, it probably saves a few seconds each time and reduces the likelihood of a stripped/cross thread bolt, cut gasket, etc.
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PostSubject: Re: Throttle body top plate question   Throttle body top plate question Icon_minitime

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