What's the diff

[rptorman]

Just as the title says. What's the difference in the different kinds of packing materials?

[rptorman]

All this knowledge on this forum and nobody knows anything about packing material? I'm not talking about butt packing either.

[superchicken]

i know that four stroke packing seems to be very dense,and two stoke packing is a looser mix of material.not sure why the difference

Edited April 24, 2005 by superchicken

[rocketboy]

from what ive seen difference is about 10$ thats about it ,theres no secret carbon fiber weaves or titanium strands or anything ,its all fiberglass

[FadedDreams]

Only thing i know is don't buy that cheap stuff on Ebay.It comes in a thick sheet and you peel off what you need.I don't know if it was the race fuel of if its just terrible,but it turned to powder.And when i took my silencers apart,there wasn't much left inside.

[Wallynut]

I believe that the 4strokes use denser pack because there is more force that could blow out the packing on their exhuast stroke. Seen guys try to use 2 stroke packing, just to have it blow out right away.

 

For 2-s, your trying to capture the noise while creating a reinforcement for the pressure wave that the expansions have created. This last part is mostly speckulation on my part.

 

Just use the stuff made for 2 strokes and don't pack it in there too tightly.

[rptorman]

Is it all fiberglass or what? I've read in other places that you can use regular house insulation. What do you think about that? Thanks for the help.

[fixitrod]

I have used regular house insulation and it worked pretty good. If you don't keep packing in there it's said that the machine can run flat on top. I believe too after my packing blew out last time. The cap came off and I lost the packing in one cylidner. I could tell the diff.... sounded faster but wasn't.