Exhaust Fixing / Hanging Points ( 2+2 )

[RAP260]

Howdy all,

 

My exhaust system is currently only fixed at one point. The flexible strap near the exhaust.

 

Surely there must be another hanging point under the car?

 

I'm trying to poke my head under there, as best I can, but I'm not seeing anything obvious. The cut away in the cross member for the rear suspension seems like the only obvious location.

 

Any input appreciated.

 

Cheers,

Rob

Edited April 11, 2018 by RAP260

[Andrew_L26]

Hey, the exhaust on my 77' 2+2 has one strap at the very rear of the car (where the exhaust tip is) and another strap on the other end of the muffler. However there was a hanger in front of the factory resonator. Not sure where it mounted though

 

You can see the factory mounting points from this image here:

 

 

Cheers,

Andrew

[RAP260]

Cheers Andrew. It looks like my setup is exactly the same as yours. I couldn't find that diagram online, my googling skills need improvement.. Lol.

 

Only just remembered I had the original service manual. Which basically shows the same thing.

 

But my issues have sort of escalated since looking for that. My muffler has always been on an ugly 45 degree angle. Now I know why. Straightening it produces the attached photo issue.

 

Didn't want to fit a new exhaust just yet, but.....Mmmmm

 

Cheers,

Rob

[gilltech]

FWIW there are three hanging points on mine; one located near the gearbox (refer B and image in the diagram posted above) - but I'll have to take a look to refresh my memory as to where exactly; and two towards the back (labelled as A and C).

A and C use captive nuts in the body shell; whereas B uses a bolt-on factory suspension bracket. Sounds like the latter is missing on yours or just wasn't used the last time a new straight-through exhaust was fitted.

[RAP260]

Cheers Gilltech, you've helped me zero in on the front mount.

 

The first two images relate to the rear hanging points.

 

The front mount hangs off the gearbox, it seems.

 

The image of the nice shiny gearbox, which isn't mine, shows the connection lugs, just under the shifter. The following images are from the manual, and show the bracket and connection.

 

I'm now confident that I can tell the exhaust shop where to hang the system from.

 

Cheers,

Rob

[Andrew_L26]

To fix your muffler slant you'll most likely have to cut and reweld it unfortunately, unless you have a vband or something

[RAP260]

Yea, she's a bit of a mess underneath. Bits of older and newer stuff. Headers, expansion chamber and muffler, all connected up at different stages of work.

 

I've managed a ghetto fix for now, to stop it rattling, lol. Just trying to save up a few dollars to get the lot replaced. Hopefully only a few more weeks.

[Groundhog]

Here's a photo of the front clamp. One of the reasons I think they get thrown away is the preset diameter and U-bolt stamped piece that doesnt suit a larger diameter exhaust pipe. To fit the larger diameter pipe you need to either open out the existing stamping or weld two curved sides to the existing stamping.

This is my prefered option as you can fix the curved pieces to suit the alignment of the exhaust pipe. 

 

Edited April 14, 2018 by Groundhog

[RAP260]

Ahhh...Of course, a fixed diameter. Didn't consider that. That's a clever solution. Nice.

 

It looks like it's a solid fixing?, unlike the rear two ( using straps). Is that correct?

Edited April 13, 2018 by RAP260

[Groundhog]

From your earlier diagrams, the fixing to the gearbox locks this part of the exhaust to the manifold and engine.
It's also one of the lowest fixtures under the car and I am sure a few of them have been ripped off.
It may require a bit of heat treatment and bending to get it to fit or make up your own bracket using the same GB mounts.

[RAP260]

Yea, was just looking at that and realised the connection, literally, between the gearbox and engine movement being one and the same. Makes perfect sense for that to be a solid connection.