schrauberklaus
Senior Member
After about 35000 km on the FMF Q4 and a metalic ping it gets when i open the trottle
it was time to repack the muffler .
As expected the Glassfiber packing had a hole where the Exhoust Gas hit the aluminium of the Can .
Glass Fiber removed , around the steelpipe there is another layer of steelwire/steelwool
That can be removed cleaned and reused.
As new Packing i use (depend i have it) Ceramic Fiber Blanket (3 cm / max. 1700°C)
Putting the Q4 back together is a 2 Man Job for the last 3 mm , as one need to center the Pipe in the Endcap and the other
do the final tap with the rubber Hammer .
bevor/after video (cange at about 13 sec.)
http://vid1206.photobucket.com/albu...349 inspection/Q4 new packing_zpsspc7y3nx.mp4
1 db less on my soundmeter and the metalic crack when i open the trottle is gone .
it was time to repack the muffler .
As expected the Glassfiber packing had a hole where the Exhoust Gas hit the aluminium of the Can .
Glass Fiber removed , around the steelpipe there is another layer of steelwire/steelwool
That can be removed cleaned and reused.
As new Packing i use (depend i have it) Ceramic Fiber Blanket (3 cm / max. 1700°C)
Putting the Q4 back together is a 2 Man Job for the last 3 mm , as one need to center the Pipe in the Endcap and the other
do the final tap with the rubber Hammer .
bevor/after video (cange at about 13 sec.)
http://vid1206.photobucket.com/albu...349 inspection/Q4 new packing_zpsspc7y3nx.mp4
1 db less on my soundmeter and the metalic crack when i open the trottle is gone .