Opinions please - Fixing Misaligned Manifold/Canister

[scruffmeister]

Before I take this job on, I thought I'd just ask for opinions...

I have a bit of a problem between my canister and manifold. I'd like the canister to run straight down the fuselage due to its size (very tight fit), but this leaves an angled gap which you can see in photo.

Anyone got any suggestions as the best way to overcome this? So far I have:

1. Try to bend Teflon joiner whilst heated, but am concerned it will try to return to straight, stress the setup and lead to failure of a joint somewhere.

2. Cut the side of the pipe tunnel to allow pipe to sit at an angle.

3. Make a cut in one side of the manifold, bend and resolder to bring it more inline.

Opinions please....

Cheers!

 

[pawnshopmike]

Maybe your local muffler shop could put a slight bend in the header?

 

[yakken]

You can prolly get the coupler to bend that much. Definitely dont want any binding though.

 

[scruffmeister]

Maybe your local muffler shop could put a slight bend in the header?

Don't have a local sadly in the UK, we have to ship everything in from Germany!

 

[Bill Vargas]

Modify the tunnel.

Header Modifications for use in this airframe might eliminate its use in future airframes.

 

[pawnshopmike]

Modify the tunnel.

Header Modifications for use in this airframe might eliminate its use in future airframes.

That's a good point Bill.

 

[Pistolera]

Not much of an angle....I'd probably go with the Telfon coupler just making a small bend. Another option is to insert a large wooden dowel, or pipe into the canister fitting and put a slight bend, which will occur in the end of the can itself. Won't take much.

I'd still try the coupler alone before fiddling with a bend in the can or header.

 

[BalsaDust]

With that little amount I wouldn't worry about it. Just do as you said and heat the coupler before installing it.
Another option is to use a silicone coupler like when using a macs header and tuned pipe on a nitro motor. Not sure if the pressure is to great on a larger gas engine though.

 

[Terryscustom]

If you put the coupler on, heat it with a heat gun right at the bending point. Then over bend it just slightly to allow for some spring back......maybe have someone spray it with water while holding it bent to quickly cool it.
just an idea.

 

[scruffmeister]

Thanks all for the advice. I think I've managed to get the coupler to take up the difference. Will let it cool fully overnight and see how it looks in morning...