Thread: Exhaust on 2A Truck Cab

Same vehicle but doing a rebuild rather than a restoration. I just ran a short exhaust in the same place. Not sure if it's roadworthy, but I can only assume that's how people used to run them.

I'm not sure how to get a picture ink off the iPad, but if you scroll down on this link you can see how I've run it.

www.slunnie.com :: View topic - Packer

Application of the rule depends on the state and their inspectors, but the general rule is that the exhaust must exit behind all openings to passenger compartments and either directly to the rear or to the right.

John

You might find it better to route the exhaust right through to the back and have the muffler rear of the cab. With the exhaust exiting just behind the cab in front of the rear wheel you will end up with the muffler somewhere near the passenger side floor pan and it will make for a rather hot "office" in summer. We had a series one 109 with a side exhaust and in summer my wife couldn't put her feet on the passenger side floor. Never had any complaints in winter though.


Cheers, Mick.

Hello BrisRuss,

Short or Full Length Exhaust?

From the first photograph it is pretty obvious why I have to replace the under cabin short version of the exhaust. Plus as mentioned in an earlier email, if the breeze is blowing the wrong way and the passenger has their window open it is not nice, as the fumes come in and gets them. Okay so the holes in the system might add to this experience. The short system is fitted to a 202 Holden red motor in a Series III LWB

One of my other Series III LWB has a Land Rover six cylinder engine and a full length exhaust system. Rebus my Holden powered vehicle will be returning to the full length system.

Luckily, Rebus still has most of the hanging brackets for the full system there .

Kind Regards
Lionel

Hello Russ,

One last photograph of the full length system! The ex-army mud-flap, which is set towards the back of the tub, obscures the tailpipe outlet on the far left of the photograph.

Kind Regards
Lionel

The ADR's at the time of original assembly require the exhaust to exit after the last opening window. In that case the side exit behind the cab is acceptable.

Two things that you may want to consider:

1. The wheel behind the side exhaust gets very dirty from the exhaust particulate matter.
2. Some roadworthy inspectors have problems with side exit exhausts on light vehicles because current ADR require rear exit. This may cause more hassles getting the roadworthy than routing the exhaust to the rear in the first place.

Originally Posted by Lotz-A-Landies

The ADR's at the time of original assembly require the exhaust to exit after the last opening window. In that case the side exit behind the cab is acceptable.

.......

Yes, but the original exhaust would have gone right to the back - and inspectors can probably require this to be adhered to.

However, as you comment, regardless of the actual legal situation, it is probably easier to reroute the exhaust to the back than to fight it!

John

When I posted this I thought I might not get a response.
Thanks for all the replies.
The fixing points on the chassis appear to have a an exit point behind the rear drivers side wheel close to the back of the chassis so it seems you can put it anywhere. I have also seen them go out through the tunnel for the rear PTO.
I can check with the Engineer when I get to that stage as if it has not been registered before I might need a compliance plate for the 186.
Next is bleeding the brakes which is a bit of a pain with the six.
The end is in sight.

Thanks everyone,
Russ