(Simrit Radial Shaft Seal Catalogue)
The data presented here is to provide a guideline for selection of a standard
seal for a general-purpose application. The user needs to be aware
that many seal design configurations exist to meet specific requirements.
Deviation from the standard limitations provided here should be considered
as an indication to explore the possibility of using alternative designs.
This site has sections on the Seal Selection Process, Seal Nomenclature,
Dimensioning a Seal, Seal Installation Procedures, Installation Training,
Fluid Compatibility, Seal Theory, Surface Condition, Shaft / Housing / Bore
Recommendations, Operating Conditions, Failure Analysis, Images of Failures,
and Material Properties. Simrit has put an incredible amount of information
into this website. Well worth looking at.
www2.vsm.skf.com/usa_english/Compass/node1104.aspx (SKF Bearing and
The SKF Group is the leading global supplier of products, customer solutions,
and services in the business of rolling bearings and seals. This area
of their website is good for finding a seal. The numbers are for CR
and SKF and they will work at NAPA. These online catalogues include
passenger/light truck applications, seal interchange/cross reference, and
bearing interchange/cross reference.
(Madsen’s Shop & Supply Inc.)
Carburetor adjustment is critical on chain saws and other two-cycle engines.
An adjustment that is too rich will cause a saw to smoke, have insufficient
power, and may damage the engine. An adjustment that is too lean will
also produce insufficient power and is more likely to damage the engine.
Proper carburetor adjustment will allow the saw to produce maximum power,
produce minimal smoke, run and idle smoothly, and give trouble free service.
This site tells you how to tune a carburetor complete with sound files.
www.tillotson.ie (Tillotson Ltd.)
Tillotson is a premier manufacturer and supplier of aftermarket carburetors,
throttle bodies and related fuel systems components providing the data tools
and expertise required to optimise your products performance. Tillotson
produces carburetors for the small engine market. Applications include
anything from chainsaws and trimmers to outboard motors. If you are
looking for rebuild kit numbers and troubleshooting, this is a good website
to refer to.
www.xamacarb.com/tips.html (Zama Carburetors)
Zama is the world’s largest manufacturer of diaphragm carburetors.
Over 90,000,000 produced to date. Annual production exceeds 10,500,000
carburetors. Maximum capacity is 55,000 per day. This website
has a section on service tips. They also have technical guides for
Systems and Operation, Troubleshooting Diaphragm Carburetors, Cube Carburetor
Disassembly & Service, RB Rotary Carburetor Operation & Service,
and Servicing Simple Start Carburetors. They also have downloads for
Quick Kit Cross Reference, Applications Cross-Reference, and Zama to Walbro
Cross-Reference. This is a good site of one of the more common manufacturers
with excellent troubleshooting, theory of operation, and rebuild kit guides.
www.walbro.com (Walbro Engine Management)
Walbro Engine Management was established over fifty years ago as a manufacturer
of carburetors for the small engine industry. Today, Walbro is a technology
leader providing a wide range of components and systems to the outdoor power
equipment, industrial, marine, recreational and two-wheel vehicle markets.
Exhaust emissions are a major focus in these markets, and Walbro Engine Management
has responded by offering a full range of emissions solutions for two and
four-stroke applications. Walbro products include low emissions carburetors,
ignition systems, electronic control units, air/fuel induction systems, electronic
fuel injection components and complete engine management systems. Another
common manufacturer with references to their rebuild kits.
Thanks to those that sent in your websites for review. I’m sure we
can highlight many more sites dealing with the mechanics side of the industry
in future issues. If you know of any good websites that you would be
willing to share with others, please email Dave at firstname.lastname@example.org
or Jeff at email@example.com.