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3800 manifold downpipe gasket by MulletproofMonk
Started on: 04-12-2014 03:09 PM
Replies: 5 (234 views)
Last post by: kikinz24 on 04-16-2014 11:02 AM
MulletproofMonk
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Report this Post04-12-2014 03:09 PM Click Here to See the Profile for MulletproofMonkClick Here to visit MulletproofMonk's HomePageSend a Private Message to MulletproofMonkEdit/Delete MessageReply w/QuoteDirect Link to This Post
So I am trying to run down my poor gas mileage on my 3800na swap... So I pulled my exhaust off to check for holes and the gasket fell out. This thing is pretty shot. Looks like it is melted pretty bad.

I picked up an OEM replacement and realized that one side has what looks like mesh, the other side is a ring. Which side goes to the manifold?



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-Brian

My 87 GT Poly Suspension Upgrade (all pics) thread
Removing the roof panel
My HUD install thread
Modified stock air canister and base to 3.5 inch for 3800na

Isn't it strange that after a bombing, everyone blames the bomber, his upbringing, his environment, his culture, his mental state but … after a shooting, the problem is the gun?

[This message has been edited by MulletproofMonk (edited 04-12-2014).]

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FieroJimmy
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Report this Post04-12-2014 05:05 PM Click Here to See the Profile for FieroJimmySend a Private Message to FieroJimmyEdit/Delete MessageReply w/QuoteDirect Link to This Post
I can't say for certain, since I'm not too familiar with this particular application, but typically the steel/ring side goes toward the head, and the mesh/fiber side will go toward the manifold to allow for minor imperfections in the casting surface.

[This message has been edited by FieroJimmy (edited 04-12-2014).]

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Tweeder
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Report this Post04-12-2014 08:28 PM Click Here to See the Profile for TweederSend a Private Message to TweederEdit/Delete MessageReply w/QuoteDirect Link to This Post
That's weird, mine had stamped on it which way to go.

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86 SE Convertible 3800sc 4t65e HD.

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solotwo
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Report this Post04-12-2014 08:38 PM Click Here to See the Profile for solotwoSend a Private Message to solotwoEdit/Delete MessageReply w/QuoteDirect Link to This Post
That looks exactly like the one I just replaced. I dont remember which way I installed it. LOL

[This message has been edited by solotwo (edited 04-13-2014).]

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solotwo
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Report this Post04-15-2014 07:58 PM Click Here to See the Profile for solotwoSend a Private Message to solotwoEdit/Delete MessageReply w/QuoteDirect Link to This Post
I think I installed it with the mesh facing the exhaust pipe not facing towards the engine.
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kikinz24
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Report this Post04-16-2014 11:02 AM Click Here to See the Profile for kikinz24Click Here to Email kikinz24Send a Private Message to kikinz24Edit/Delete MessageReply w/QuoteDirect Link to This Post
The mesh part should go against the manifold it is completly flat. and the "ribbed" side to the downpipe. It should ever so slightly fit into the dp hole allowing it to seal all the way around it.
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