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Old 06-07-2001, 05:17 AM   #1
Scooby Specialist
Member#: 2362
Join Date: Sep 2000
Location: South Carolina, USA
1999 Legacy Outback
Blue w/ Paint Chips & Mud

Post headers banging against skid plate all of a sudden?

Ok now (just started this week) I am getting vibration/noise from the headers (I'm guessing) vibrating against my primitive racing skid plate.

They never USED to do this except occasionally when the car went through hard shifts.

Could it just be the engine is running rough and causing more vibration to occur?

I am getting the car tuned up this morning, hopefully that will fix things but I'm just curious as to why this would start all of a sudden.

I'm also switching to Mobil 1 10W30 synthetic engine oil. Think I'll see any leaks? 30k miles on the ODO.
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Old 06-07-2001, 08:41 AM   #2
Scooby Guru
Member#: 2278
Join Date: Sep 2000
Chapter/Region: NESIC
Location: Pepperell MA
8Sti | 07 allez
White | Comp


on my skid plate, rumble soft, It was pretty close, so I added some washers to space it a bit. That may help if you can't get your engine to settle down, you may want to check your motor mounts, not that I've heard of them breaking, but...
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Old 06-07-2001, 03:44 PM   #3
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Member#: 6467
Join Date: May 2001
Location: philadelphia, pa, usa
1999 Impreza 2.5 RS


this happens after a while with most skid plates, they start to curve from the heat, just take it off and bend it back to shape, my buddy does this every now and agian and it keeps the rattle away. also you shouldnt see any leaks. i just switched at 56k and im not having any problems....yet

[ June 07, 2001: Message edited by: NateDogg ]
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Old 06-07-2001, 03:54 PM   #4
Scooby Specialist
Member#: 3198
Join Date: Dec 2000
Location: Portland, OR USA
2005 GT LTD Wagon
Garnet Red


If you have properly maintained your engine, you will never see leaks from switching to synthetic.

You will sometimes see leaks in an older engine because existing leaks are filled with coke from the dino oil. The higher detergent properties of synth gets rid of the deposits and opens up the existing leak.

If you've properly maintained your engine, you don't have coke deposits.
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Old 06-07-2001, 09:59 PM   #5
Scooby Newbie
Member#: 1992
Join Date: Jul 2000
Location: Port Jefferson, LI

Wierd..I have Coke Deposits around my cupholders. Will switching to Mt dew change this.

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Old 06-08-2001, 06:52 AM   #6
Subie Gal
Super Moderator
Member#: 301
Join Date: Sep 1999
Chapter/Region: NWIC
Location: WA
1970 FF-1 & '70 Van
02 WRX/01 RS


either bend the skid plate back a bit...

or add spacers...

on my GT i added spacers and the banging disappeared...

j. www.subiegal.com
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