Wastegate inlet, not a complete seal??(large gap)

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Old Oct 17, 2005 | 08:51 AM
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Default Wastegate inlet, not a complete seal??(large gap)

My cheapo tial knock off wastegate lets exhaust pressure by... Its kinda weird there is a ring that comes with the kit and a buncha flanges and **** but when the ring is used it then makes it imposible to create a complete seal bettween the gate and teh manifold, the gap is about 1/8 inch around the entire circumference of the inlet plunger... help me ut what should I do use thematal ring and grind down the ridge making it impossible to mount flush????
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Old Oct 17, 2005 | 08:53 AM
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Default Re: Wastegate inlet, not a complete seal??(large gap) (R6E6I6D)

the ring is supposed to seat inside the wastegate when bolted down
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Old Oct 17, 2005 | 09:00 AM
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Default Re: Wastegate inlet, not a complete seal??(large gap) (R6E6I6D)

Yea but when its not bolted down just sitting on oits mounting surface it sits too high and there is a gap bettween wastegate and mounting flange..... the gap is about 1/16th of an inch maybe more I dont think it should look like this....
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Old Oct 17, 2005 | 09:04 AM
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When you tighten the bolts, the firing ring will seal against the flange.
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Old Oct 17, 2005 | 09:19 AM
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Default Re: (bubs)

really... So it is supposed to be a bit depressed ( is this to create the best posible seal?)... o and my wastegate is supposed to have a static spring rated to 7 psi and It feels like 15 pounds are needed to push down that pluger/diaphram.... is this because there is no vaccum assist or is this supposed to be easier??
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Old Oct 17, 2005 | 09:34 AM
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The ring will stick way out until you tighten the bolts, then it will push tight against the wastegate piston and push it up to create a better seal.

Is it an SSAC wastegate? If I were you, I'd unscrew the top and double check the spring that's in there. I ordered mine with a 5.83 psi spring and ended up with a 14 psi spring, which would have killed my motor.
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Old Oct 17, 2005 | 09:35 AM
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Default Re: (R6E6I6D)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by R6E6I6D &raquo;</TD></TR><TR><TD CLASS="quote">really... So it is supposed to be a bit depressed ( is this to create the best posible seal?)QUOTE]


yes


[QUOTE=R6E6I6D]o and my wastegate is supposed to have a static spring rated to 7 psi and It feels like 15 pounds are needed to push down that pluger/diaphram.... is this because there is no vaccum assist or is this supposed to be easier??</TD></TR></TABLE>

remember, psi is pounds per square inch.. its going to take more than 7 pounds of weight to push in the plunger.
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Old Oct 17, 2005 | 10:57 PM
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Default Re: (adictionbass)

it is an ssac and yes it was supposed to be 5.83 but it feels like 15ish i think i have the same prob u did it came with a red soft spring too tho should i install that???... o and the "firing ring did compress and make a prefect seal with the gasket! thanks
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Old Oct 18, 2005 | 04:00 AM
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The red spring is the 5.83 psi spring.
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Old Oct 18, 2005 | 05:20 AM
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Default Re: (R6E6I6D)

Remember: You are supposed to use the ring AND the gasket. Not using the gasket will raise the boost a smidge. (more preload on the plunger)
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Old Oct 18, 2005 | 09:28 AM
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Default Re: (beepy)

wont having the gasket make more preload.... any way thanks alot I didnt even think of that I got some weird organic material gaskets and a stamped metal gasket the metal is a bit thicker.... i think im gunna use the others
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