Diesel exausts

[Keith Evans 3]

I'm currently using a short length of old petrol hose pipe on my PAW 35 held on with a hose clip as an extender .What do others use to get the mucky stuff away from the model. I'm not thinking of a custom made job or anything that requires a lathe .

[bert baker]

I’ve used plastic air pipe thick walled to good effect on a PAW

[brokenenglish]

I use silicone tube. Find the appropriate diameter to get a good tight push fit on the PAW silencer outlet and you don't need any attachment device.

[Engine Doctor]

What ever you use don't scrimp on the diameter of exhaust oroextend it too far . A free flow for the exhaust is needed as too much back pressure will adversely affect the engine and can cause overheating etc.

Edited By Engine Doctor on 29/08/2018 10:19:21

[Dai Fledermaus]

What ever you use don't scrimp on the diameter of exhaust oroextend it too far . A free flow for the exhaust is needed as too much back pressure will adversely affect the engine and can cause overheating etc.

Edited By Engine Doctor on 29/08/2018 10:19:21

Would that advice apply equally to your average glow motor?

[Peter Miller]

Just as a point of interest.

You can solder up exhausts from tinplate and bits of brass tube using soft solder. IT works for diesel but NOT for glows.

[Keith Evans 3]

Hi all .I've all my glow engines fitted with standard B@Q plastic pipe ,some of it up to about 9" to 10" long for about 6 to 7 years now to minimise the mess .Yes I agree that power may be down but the way I fly ,mostly on 1/4 to 1//2 throttle it is not a concern and I suffer no over heating . On the diesel side the B@Q pipe melts through in two flights .I stayed away from silicon as I believe it is attacked by the fuel hence the use of Tygon for all fuel lines . The current length of tubing on my PAW 35 is about 2" and seems to run fine . Thanks for all the feedback. Keith