|JBM Replacement Carburetor Socket Boots for Rotax Engines
| JBM Industries makes a high quality carburetor socket for your
Rota two-cycle engine using a BING model 54 carburetor. JBM
sockets are made from our special TSR compound.
JBM rubber is designed to be compatible with regular automotive
gasoline with up to 10% ethanol, resist age cracking, tolerate high heat,
and have a frequency response to prevent carburetors whipping.
JBM carb socket boots have a mechanical locking rib to help
prevent carbs being thrown or popping out of the socket.
JBM carburetor inlet sockets also come with new screws to fit your
original clamps, and are much less expensive than factory original
parts that require frequent replacement.
JBM carburetor sockets are made in Uniontown, Ohio, USA, and
are not manufactured by Rotax or imported from other manufacturers.
|Fits Rotax 377,447, 503 with Bing 54
|582 Socket has JBM design
|JBM Stainless Steel "custom wound" Exhaust Spring
| JBM Industries makes a very high quality, custom wound, exhaust spring
to help solve the problem of broken springs. Often you will return to your
hangared plane, and find a broken spring. Springs can break when the aircraft
is not in operation.
Hydrogen embrittlement caused by rust, and poor installations will cause
springs to break, sometimes in a very short time. JBM has tackled this
problem by manufacturing custom wound exhaust springs made of stainless
steel. Stainless springs are usually used where high heat is involved, like
furnaces or ovens, but we use it to make sure rusting is impossible.
JBM Stainless Exhaust Springs have a measurement at rest of 63mm
between the hooks. These springs have extra turns of wire, so can expand a lot
to give more latitude on installations up to about 4 inches.
Because loops are welded on by exhaust providers, be sure to
measure the distance you need. JBM only manufactures one size.
Loops can be bent to allow for proper installation, as loops on exhaust
systems are welded on by kit manufactures for their specific exhaust
installations. Your aircraft might require 3, 4, 6, or even the 7 springs used on
Challenger aircraft. Rotax 912 installations may require 8 springs. Please
measure. Some loops must be heated with a torch to be bent back.
Example of poor installation is shown below. It is best to use a hook to
install springs to prevent nicks from pliers on the hooks.
Heat can be used to bend the loops to adjust for proper spring length and
tension in most cases. Springs should never touch the exhaust pipe, as wear
and breakage of spring will increase.
Use of silicone sealant to fill the spring, or damp out vibrations is a bit of a
messy solution and will not prevent broken hooks.. Use safety wire through the
center of the spring to prevent broken pieces of spring causing propeller
|Sizes of rubber socket boot holders we offer:
|43mm X 43mm
43mm X 40mm
40mm X 40mm
|NOTE: We do not make rubber flanges for Rotax 532 engines.
We believe the solution for this is to purchase a "Rotary Valve Cover"
Plate from a used water-cooled engine, as it is easy to remove. Used
plates can be found from snow-machines and jet-ski applications on Ebay
or web sites. These parts will have a mounting spigot that will allow you to
use the JBM Rotax 582 carburetor sockets indefinitely.