Flame Arrestor Function

[Jack C.]

What does it actually do or prevent? I read different definitions but would like to know in laymans terms. What would happen without it being installed?

[Bill C.]

Re: Flame Arrestor Function

I think that it stops a flame (from backfire etc..) from being sucked into the breather tube -
not 100% sure though.

The PCV system creates suction in the engine and air is pulled through the breather tube.

Just my best guess.......

[Duke W.]

Re: Flame Arrestor Function

It prevents a carburetor backfire from propagating into the crankcase, where an explosion could occur because most blowby is combustible unburned fuel-air mixture.

Some years ago I posted a more detailed explanation (see archives), and it was also published in The Corvette Restorer.

Duke

[John H.]

Re: Flame Arrestor Function

I wonder why the '67 L-36 with A.I.R. and all '67 3x2's (A.I.R. or not) omitted the flame arrestor?

[Fenwick B.]

Re: Flame Arrestor Function

A flame arrester reduces the temperature of the flame going thru it, so that there will not be enough temperature to support combustion on the outside of the flame arrester.

[Michael G.]

Re: Flame Arrestor Function

Does anyone know of if a reproduction of this unit is available for a 71 base engine? Mike

[Bruce B.]

Re: Flame Arrestor Function

Corvette America lists a flame arrestor for a 68 to 72 Corvette air cleaner.
PN 22389 at $8.99 each.
www.corvetteamerica.com

[Michael G.]

Re: Flame Arrestor Function

Thanks Bruce.

[Steve M.]

Re: Flame Arrestor Function

Will the judges make a deduction if you have one on a 67 L-71?