SSI heat exchangers -what’s the port for?.

[Brian Cameron]

Overhauling wife’s 79SC and just installed the SSI heat exchangers and Dansk 2->1 mufflet, wow just beautiful.

But not sure what the little port (circled in red) is for or what I should do with it. Can’t find anything with a search but maybe using the wrong terms.

Guessing it might be there for later lambda cars, if so I assume I should cap it off? If so, how? There’s a rubber cap in place now, i assume it would melt in short order.

TIA/Brian

[jpnovak]

That is for the warm up hose on 69-71 MFI cars. You can cap it off.

[Brian Cameron]

Thanks Jamie, i figured it was something like that but not sure which year(s) applied.

Any suggestions what to use for a cap? If exhaust gases are going through there I assume it’ll get too hot for a rubber bung or clamped-off hose

Thx/Brian

[john walker's workshop]

Just hot air, no exhaust gas.

[Brian Cameron]

Originally Posted by john walker's workshop

Just hot air, no exhaust gas.

Thanks John.

In that case I’ll use whatever works on politicians...

[RDM]

Originally Posted by Brian Cameron

Thanks John.

In that case I’ll use whatever works on politicians...

If you figure that out, you'll be a hero to all of us!

[Brian Cameron]

So I figured it would have to be heat resistant, so I googled “silicone plug” and this came up. This should work on politicians too, no?

[lsf911]

That's very funny

[Bill Douglas]

It will be interesting to see how you find how the characteristics of the engine have changed. My '79 has SSis but I swapped out the engine for an engine that already had the SSIs. So I can't really compare. Nice to lose a few Kg's off the arse end of the car too.

[eastbay]

Those are the "wrong" part for your car. They do make the correct part without the MFI heater tube.