Intake muffler packing (filter?)

[orlandoclippertim]

Do restorers normally replace this filter/packing inside the intake muffler ?
Is it an air filter or does it work like a spark arrestor for backfires ?
It looks like fiberglass but It couldnt be---
What do we do with it ?
Tim

 

[jimmbo]

Do restorers normally replace this filter/packing inside the intake muffler ?
Is it an air filter or does it work like a spark arrestor for backfires ?
It looks like fiberglass but It couldnt be---

Tim

If you are truly Restoring it, yes you would replace it

It is strictly for reducing the noise of the air flowing into the carb

The intake silencer itself is a heat sink to cool any backfire

And why wouldn't it be fiberglass.

 

[F_R]

I have heard that there was a service bulletin saying to remove those fiberglass packings, but I'm unable to verify that.

 

[racerone]

We took the complete silencer off in the old days.------Is that fiberglass factory stuff ???----Or is it from a wee critter that built a home in there ??????

 

[orlandoclippertim]

It LOOKS like fiberglass----- but with intake air flowing over it-- tiny pieces of that glass would probably get entrained
in the intake air and be injested and go on to scratch the cylinder walls or get into bearings. I COULD believe that
if it is glass-- there could have been an SB to remove it------
Maybe I could cut up a paper automotive element and lay in there somehow.
Something to keep mud dobbers out at least. I have some TINY fine brass screen I got at michaels crafts--- that would keep out the bugs and some bigger dirt. I have to strip, sandblast and paint the muffler before I get to that though.

Maybe I can weld up an aluminum contoured frame with a rubber seal to lay on the muffler surface and then fasten the screen onto the frame. Like a honeybee-keepers helmet.

T

 

[F_R]

My goodness, no motors built after the couple of years you are looking at have any sort of air filter at all. Many do not even have a silencer. No problem with removing the fiberglass (yes it is fiberglass). But I'd keep the silencer, if for no other reason than noise.