theoldwizard1
ArboristSite Lurker
The definitive test for a crank seal is a pressure/vacuum test. This is a pain, because you need block off plates for both the intake (carburetor) and the exhaust (muffler) and a pressure/vacuum source.
Short of "visual inspection" ("Hmmm, there is a lot of oil and dirt build up that looks like it is coming from behind the flywheel" and "It's over 10 years old, I'll bet it need a new crank seal") is there any other method to assess the "quality" of a seal ?
Short of "visual inspection" ("Hmmm, there is a lot of oil and dirt build up that looks like it is coming from behind the flywheel" and "It's over 10 years old, I'll bet it need a new crank seal") is there any other method to assess the "quality" of a seal ?