How to block off 1929 heat riser

[jps]

I would like to know if someone sells a plug that can be used to block off the heat riser on a 1929 Standard, or if I would need to make my own plug.  If making my own, is there a recommended material?  I believe I have seen a photo of a heat riser with a plug in the outlet to the crossover tube.

 

Otherwise, does anyone have an extra Standard crossover tube they don't need?  Mine is not correct - it is a bit undersize and exhaust leaks out around the tube because my heat riser flapper is broken and stuck open.  I am trying to make my own replacement tube but am having trouble getting the required bends in the tube.

 

Thanks

[Mark Shaw]

If memory serves, the exhaust comes into the riser from the rear & requires a custom made steel plate & exhaust gasket material to plug it. 

 

The tube connections can easily be plugged with freeze plugs from a local auto parts store. 

 

Make sure you lock the heat control valve in the open position and replace the internal riser tube with aluminized or SS exhaust tubing.

Edited August 8, 2016 by Mark Shaw (see edit history)