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Exhaust rattling on rear axle after lowered. 

 

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 Post subject: Exhaust rattling on rear axle after lowered.
Posted: Fri Jun 11, 2010 7:57 pm 
Stock as a Rock
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Age: 27

Posts: 168

Joined: 3rd Dec 2009

Ride: Falcon EL Option 20

Location: Redcliffe, Brisbane
QLD, Australia

Hey guys,

Put Ultralows in my EL Falcon, and the exhaust rattles on the rear axle on idle, and when i'm driving I can hear it bouncing on it.... Anyone have any idea on how to stop it? Would be best if I can do it at home, but if i need to take it to an exhaust shop that is fine.

Cheers
Josh
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 Post subject: Re: Exhaust rattling on rear axle after lowered.
Posted: Fri Jun 11, 2010 8:01 pm 
Getting Side Ways
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Ride: EA SVO, AU2 Forte

Location: Bendigo
VIC, Australia

can't help it. too low. mine has superlows and it hits some times

 

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Daily driver: AU2. 5 speed. 19" FG luxos. Full exhaust. Lowered. AU3 XR leather interior, converted to full power windows. 3.45 LSD. IN THE FUTURE: Tickford 6
Weekend driver: EA SVO AU motor. Built BTR. TCE 2800 stall. T76 turbo. Locked diff. On E85. approx 320rwkw. 11.5 @121mph

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 Post subject: Re: Exhaust rattling on rear axle after lowered.
Posted: Fri Jun 11, 2010 8:02 pm 
Stock as a Rock
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Age: 27

Posts: 168

Joined: 3rd Dec 2009

Ride: Falcon EL Option 20

Location: Redcliffe, Brisbane
QLD, Australia

No way I can shorten it to be closer to the chassis?

Like this is the most loudest annoying rattle.... :oops:
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 Post subject: Re: Exhaust rattling on rear axle after lowered.
Posted: Fri Jun 11, 2010 8:11 pm 
Getting Side Ways
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Location: Adelaide
SA, Australia

You can bend or extend and bend the exhaust hangers to make it fit better, my exhaust was done after the superlows went in, a bit of time getting it right, and it sits up higher than the standard one and doesn't hit or rattle at all, but a hoist makes it a lot easier than trying to do it at home.
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 Post subject: Re: Exhaust rattling on rear axle after lowered.
Posted: Fri Jun 11, 2010 8:11 pm 
Getting Side Ways
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Age: 28

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Joined: 11th Mar 2008

Ride: EA SVO, AU2 Forte

Location: Bendigo
VIC, Australia

does it have a haymann reece tow bar?

all i did to raise mine was remove the exhaust hangers and pull them up to the highest loop possible.

but when it's loaded with a car load it hits the tow bar

 

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Daily driver: AU2. 5 speed. 19" FG luxos. Full exhaust. Lowered. AU3 XR leather interior, converted to full power windows. 3.45 LSD. IN THE FUTURE: Tickford 6
Weekend driver: EA SVO AU motor. Built BTR. TCE 2800 stall. T76 turbo. Locked diff. On E85. approx 320rwkw. 11.5 @121mph

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 Post subject: Re: Exhaust rattling on rear axle after lowered.
Posted: Fri Jun 11, 2010 8:22 pm 
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Ride: EB Fairmont Turbo

Location: Wynyard
TAS, Australia

Hi guys I have been a exhaust fitter since I was 14 years old, and I find most of the falcons have stuffed rubber hangers, or if the tail pipe is hitting just near the bend at the center muffler you can sometimes tap the tail pipe further into the muffler, check to see if the pipe is sitting the correct way as this also can be a issue,

The part number for the rubber is
Pro Ex--- FDR008
Walker--- A7056
Mackay---A1996

 

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 Post subject: Re: Exhaust rattling on rear axle after lowered.
Posted: Fri Jun 11, 2010 9:52 pm 
Stock as a Rock
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Age: 27

Posts: 168

Joined: 3rd Dec 2009

Ride: Falcon EL Option 20

Location: Redcliffe, Brisbane
QLD, Australia

Seems to be hitting on the bend over the rear axle... should just cut it off before the axle and have side draught exhaust 8-)

Nah i'll see what i can do with the hangers, are they welded to the chassis or whats the deal with them?
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 Post subject: Re: Exhaust rattling on rear axle after lowered.
Posted: Sat Jun 12, 2010 8:56 am 
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they should be bolted, there are 3 hangers on the tail pipe and one at the rear muffler,

the one at the rear muffler which is the main problem as its holding the most weight, but all the tail pipe ones may need to be replaced,

What system do you have,

 

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 Post subject: Re: Exhaust rattling on rear axle after lowered.
Posted: Sat Jun 12, 2010 12:05 pm 
Stock as a Rock
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Ride: Falcon EL Option 20

Location: Redcliffe, Brisbane
QLD, Australia

scotty2611 wrote:
they should be bolted, there are 3 hangers on the tail pipe and one at the rear muffler,

the one at the rear muffler which is the main problem as its holding the most weight, but all the tail pipe ones may need to be replaced,

What system do you have,


2.5" Mandrel exhaust system, not sure on brand as it was done before I received the car. Will have a look at them today when I service it, and hopefully i can figure out a way to raise it closer to the chassis. Exhaust shop told me that they can either apply heat to it, and move it, or replace the whole tail pipe (which I think may be just a way for a bit more $$$)

Cheers
Josh
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 Post subject: Re: Exhaust rattling on rear axle after lowered.
Posted: Sat Jun 12, 2010 7:22 pm 
Getting Side Ways
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Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

Ultra lows are toooo low.
About the only option left is a dumper.

 

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 Post subject: Re: Exhaust rattling on rear axle after lowered.
Posted: Sat Jun 12, 2010 9:24 pm 
Stock as a Rock
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Age: 42

Posts: 155

Joined: 7th Nov 2004

Ride: EB Fairmont Turbo

Location: Wynyard
TAS, Australia

With Ultra Lows, the best way is to have a custom mandrel tailpipe made, I have done quite a few

 

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 Post subject: Re: Exhaust rattling on rear axle after lowered.
Posted: Sat Jun 12, 2010 9:38 pm 
Getting Side Ways
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Ride: ef falcon, el fairmont ghia

Location: Christchurch
New Zealand

is the loop straight? mines ultra low and don't have problems
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 Post subject: Re: Exhaust rattling on rear axle after lowered.
Posted: Tue Jul 06, 2010 5:42 pm 
Stock as a Rock
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Age: 27

Posts: 168

Joined: 3rd Dec 2009

Ride: Falcon EL Option 20

Location: Redcliffe, Brisbane
QLD, Australia

Well the rattle is still around, lost my job so can't get it attended to. But it's just a loop over the axle, so if i were to put some thick rubber between the axle and exhaust would that help??

Cheers
Josh
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 Post subject: Re: Exhaust rattling on rear axle after lowered.
Posted: Tue Jul 06, 2010 5:46 pm 
Getting Side Ways
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Joined: 3rd Apr 2008

Ride: EF Fairmont, XG Ute

Get an old wire coat hanger.

Wrap the wire around the pipe, pull it through the holes in the car body up the top of the diff arch (you will see them under there) and twist together to desired height.
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