Purpose of rubber between fins?

[Slorider]

I can remember a couple of ole air cooled Suzuki's I owned had rubber blocks fitted between the cooling fins on the barrel,anyone know what their purpose was and did it work..........don't see this on later model gear.

[Ocean1]

I can remember a couple of ole air cooled Suzuki's I owned had rubber blocks fitted between the cooling fins on the barrel,anyone know what their purpose was and did it work..........don't see this on later model gear.

I always assumed it was to shut the bastards up a bit. Certainly taking them out caused them to make more of a ringing noise.

[nodrog:Me]

Just to make them abit quieter. Old beemers had similar.

[Laava]

And to stop them from stress fracturing.
Nowadays the alloys they use are far superior and and also cast in a far superior way.

[cheshirecat]

And to stop them from stress fracturing.
Nowadays the alloys they use are far superior and and also cast in a far superior way.

Don't let Mr S Honda know that. His RC174 used alloys metal coatings still unknown to us plus the cylinder block used 29 interlocking sub moulds and JPX's CNC machine-took several weeks to set up for the job. The machining operation itself took 14 hours and 90 tool heads to machine a single cylinder block.

Read more: http://www.motorcyclistonline.com/fe...#ixzz30jG2GgSC

[Ocean1]

Don't let Mr S Honda know that.

"Compared to this," Beale sighs, "the Benelli was built by a blacksmith."

[Laava]

Don't let Mr S Honda know that. His RC174 used alloys metal coatings still unknown to us plus the cylinder block used 29 interlocking sub moulds and JPX's CNC machine-took several weeks to set up for the job. The machining operation itself took 14 hours and 90 tool heads to machine a single cylinder block.

Read more: http://www.motorcyclistonline.com/fe...#ixzz30jG2GgSC

Cool, I never had one of them, I had a Yammy DT360 made of cheese. The crankcases fell apart.