1600M - Exhaust Mounting...

[Joho]

Hi!

Does anyone have a photo of the exhaust mounting
of the 1600M.
My exhaust is only connected to the car near the tail pipes and
on the manifold. There are hooks welded to the exhaust in the middle of the pipe,
but there are no counterparts on the car to mount any rubbers.
I would like to know how this worked unsually at the 1600M.
In the spare parts manual I can't find any mounting or hooks...

[plasticpig72]

Joho,
i don't have the answer but i would like to know also.
I would like to fit a quieter exhaust system to my 1600M .
Do you have a single pipe at rear or double like mine.
Alan

[chris52]

I'm not sure about the 1600m but the 3000m has a hook bolted to the gearbox mount with a thick rubber mounting O ring on both sides. I'm guessing that as you have a hook on your exhaust if this is in the same area as the gearbox mount they may be mounted the same way.
Chris

[Joho]

I also have a double pipe.
But I don't know if two pipes make more noise!?

[Joho]

chris52 said:

I'm not sure about the 1600m but the 3000m has a hook bolted to the gearbox mount with a thick rubber mounting O ring on both sides. I'm guessing that as you have a hook on your exhaust if this is in the same area as the gearbox mount they may be mounted the same way.
Chris

That's right. But the 1600M exhaust makes a completely different way.
It's conducted over the gearbox mount, not under it.
And the hooks on my exhaust are much more backwards on the exhaust pipe.
On that place are only the two chassis pipes to fix it.
But they are so close to the body that it's difficult two mount
a clamp on the chassis pipes or something like that.

[timelord]

I agree with Adrian the rear mount needs to be under compression, you system will need a front mount to stop the exhaust slowly twisting down, caused by the offset entry on the front box. I have changed my system to straight through boxes and have only been running with a rear mount for many years. Geoff

[plasticpig72]

joho,
how much ground clearance do you have, surely it hits the road.
timelord,
could you tell us what straight through system you have and is there better ground clearance. Also is the system noisy.

on my 1600M there is just a pipe to rear then it splits for 2 tail pipes. Each tail pipe has like a perforated sleeve Inside. I would like to make it quieter.
Alan

[timelord]

The system I had made uses similar size boxes but with entry and exit pipes both in the middle of the box, I use the short S shaped pipe from the manifold as standard but have a single tailpipe. The system in joho's picture will in time tend to twist down causing clearance problems if used without a front mount. As for noise mine is probably a little loader than standard but there is as much roar from the twin Weber carbs! Geoff

[Joho]

Thanks for the infos!

@Alan
My exhaust system is from http://jpexhausts.co.uk
It's absolutely not noisy and sounds great.
(You can get a short impression of the sound here
https://www.youtube.com/watch?v=2AeR2BT7CzY Min. 0:13)
The ground clearance is about 10 cm. but that depends
on the adjustment of the coilovers too...

Enclosed two photos of the fixment oft the exhaust system.
I have big problems with vibration fissures andf I think this could
be avoided with a fixation in the middle of the exhaust.

[Joho]

[timelord]

Your rear mount needs to be on top of the chassis bracket with the bracket from the clamp on top, this way if the rubber mount breaks the exhaust doesn't drop on to the road. Geoff

[Joho]

Hm, I will try.
But I think there's not rnough space between the
pot and the prop shaft to lift it higher.

[timelord]

You'll probably need to make a new strap from the mount to the exhaust, a bit longer, but the bonus is this gains a little more ground clearance at the back. Geoff