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Old 07-28-2008, 06:16 PM   #1
shemp321
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Join Date: Feb 2006
Location: Bloomingdale
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2002 WRX sedan
custom charcoal grey

Default brass metal shavings in my intake manifold

Hey guys I recently was assembling my APS Fmic on my 02 WRX with a built motor. They gave me a brass 45 degree connecter to connect to my intake manifold by the fuel lines above the manifold. This nipple piece is connected to the brake booster vacuum hose. I accidently broke the thread of the brass piece and then actually got it out. the problem is I think there is a few small shaving left in the manifold. I havent stared the car yet but I ran a little vacuum hose i rigged and suck it down there. After that I put a pieace of rubber with duck tape attached to it and pulled up very few and very small pieces of brass. Is this harmful? Or do I have to take off the manifold and cleanit out? Thanks
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Old 07-28-2008, 06:22 PM   #2
LiquidForce
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Take it off. But even that may not be enough if a valve was open and it dropped in. If that happened you may have to pull the head. I would try to find a bore scope to borrow.
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Old 07-28-2008, 10:24 PM   #3
shemp321
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I talked to a few places so far and one said that there shouldnt be a problem it should just shoot out the exhaust and another said maybe it depends on how big the junks were.
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Old 07-28-2008, 10:40 PM   #4
jaxscuby
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it would be wise since you have a built motor.
why waste a motor over a small piece of brass.
how much did your motor cost?
how much do tgv/intake gaskets & your time cost?
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Old 07-29-2008, 12:29 PM   #5
shemp321
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the block was around $3,000 and the heads were about $2,000. DO you guys know where to find instructions on how to take off the manifold then because I don't know if I want take that risk. I got a few very small pieces out again when I stuck a stick with some tape down there but nothing big.
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Old 07-29-2008, 12:59 PM   #6
engineerx
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Take off mani. Inspect intake port & cylinder of the side where the brass fitting broke off. If the intake valves were closed on that side then you might be lucky enough that no debris fell into the cylinder. Blow off the manifold with compressed air nozzle once you take it off. Use a flashlight to check for valve position.

Instructions are on the Subaru WRX service manual. Intake manifold section here

You may want to try vacuuming the cylinder on that side and then blowing compressed air into cylinder - is there an instance when the intake & exhaust valves are open a bit? - turn the crank (crank pulley/ tranny on neutral) You might be able to set all valve to slightly open an blow any debris out thru exhaust ports - but I don't know if that's "not recommended" - as long as air is clean I don't see any problem.
Good Luck... next time.... make sure threads on fittings are compatible, use Hondabond or any of the Permatex sealants on the threads - you don't have to overtighten and run risk of breaking fittings.
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Old 07-29-2008, 01:11 PM   #7
Element Tuning
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Oh man you don't need to do all of that, just flip the car upside down and shake

You should remove the intake manifold, clean, and vacuum out the intake ports but as mentioned hope it didn't make it past an open valve. There is too much money at stake and no reward for crossing your fingers and starting it up.

If I were in a race that had a sizable pay out and actually had a chance at winning, I would fire it up and go for it but you have absolutely nothing to gain by taking that chance.

Good luck.
Phil
www.elementtuning.com
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Old 07-29-2008, 01:45 PM   #8
shemp321
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Thanks for all the help guys, Im definately taking the manifold off and checking it all out. Thanks again
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