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Author Topic: 51mm throttle body problem???  (Read 2290 times)

Offline Jezza-7

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51mm throttle body problem???
« on: August 16, 2012, 04:40:47 pm »
I replaced my t-piece gasket and noticed this:



Is this normal???

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Offline dub-disaster

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Re: 51mm throttle body problem???
« Reply #1 on: August 16, 2012, 05:57:22 pm »
is what normal ??
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Offline cheys03

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Re: 51mm throttle body problem???
« Reply #2 on: August 16, 2012, 06:07:11 pm »
Do you mean the smaller hole? Is it on the same side as the idle screw, as it's probably the idle air port.
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Offline Jezza-7

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Re: 51mm throttle body problem???
« Reply #3 on: August 16, 2012, 06:25:12 pm »
Yeah the small one is the one im on about. its on the same side as the electrical plug bit so it would be directly under the boost pipe.

I thought the big one was the idle screw as you can see the screw inside.
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Offline cheys03

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Re: 51mm throttle body problem???
« Reply #4 on: August 18, 2012, 10:06:23 am »
Maybe it's a manifold pressure reference (vacuum) hose feed?
Hard to tell without a spare tb for closer inspection. I hope it's that, because the alternative is troubling.
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Offline Jezza-7

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Re: 51mm throttle body problem???
« Reply #5 on: August 18, 2012, 04:10:32 pm »
Anyone got a picture to compare?
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Offline vee-dub90

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Re: 51mm throttle body problem???
« Reply #6 on: August 18, 2012, 04:37:27 pm »
Daryl in the for sale section is selling a stock one.. would that be of any help?
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Offline Justin14100

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Re: 51mm throttle body problem???
« Reply #7 on: August 18, 2012, 06:15:09 pm »
Its the hole that the wide open throttle sensor screws go into, some break through - if they do they get a wick of sealant or chemical metalled over to cover it up.
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Offline RyanC

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Re: 51mm throttle body problem???
« Reply #8 on: August 19, 2012, 12:34:01 am »
mine dont have that just the idle screw hole
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Offline hayesey

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Re: 51mm throttle body problem???
« Reply #9 on: August 23, 2012, 10:05:32 am »
no it can happen when the throttle bodies are ported out to 51mm.  chemical metal is your best bet.
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