bubenberg
Platinum Member
- Joined
- Mar 21, 2002
- Messages
- 942
- Location
- Bucks County, PA
- Tractor
- PT425, Kubota L2050, 3 hydrostatic Exmark mowers. Z21D Kubota ZTR, 2 Kunz acrease wing mowers, 1 rough cut kunz mower, one vintage grasshopper ztr, one vintage gravely ztr, various large garden tracto
What a difference after we installed the pt engineered (by Ed, the owner and chief engineer). The engine runs even quieter than before and we operated the machine pushing around slush mixed with salt and cinder for a good hour. the black box protecting the engine was barely warm.
the principle of the pt muffler for the 425 is very simple, sturdy and ingenious. to reduce the heat, there are two pieces of pipe (about 2.5" long) welded to two comparable holes in a rectangular box. on one side the pipe goes halfway into a chamber and on the other side it just stops at the rectangular box.
with this design, and very effectively, cold air is sucked into that chamber and out comes a less hot exhaust gas, have not measured the temperature again. hopefully i will not have any battery tops melting, like the one last summer, with this new muffler.
one word of caution make sure you ask for the support bracket. i did not get mine when i was down there (because i did not know of it's existence), the pt muffler can't be held up by the four lousy bolts, Kohler provides, for too long.
the principle of the pt muffler for the 425 is very simple, sturdy and ingenious. to reduce the heat, there are two pieces of pipe (about 2.5" long) welded to two comparable holes in a rectangular box. on one side the pipe goes halfway into a chamber and on the other side it just stops at the rectangular box.
with this design, and very effectively, cold air is sucked into that chamber and out comes a less hot exhaust gas, have not measured the temperature again. hopefully i will not have any battery tops melting, like the one last summer, with this new muffler.
one word of caution make sure you ask for the support bracket. i did not get mine when i was down there (because i did not know of it's existence), the pt muffler can't be held up by the four lousy bolts, Kohler provides, for too long.
