A significant part of these on-road emissions used to come from the crankcase — up to 30%, according to a 1962 study — but thanks to changes in engine design, that's no longer true.

REFRIGERANT MIGRATION Migration is an off-cycle phenomenon. It is a process where either liquid and/or vapor refrigerant migrates or returns to the compressor’s crankcase and suction line during the ...

Learn how to properly mill the crankcase of a Honda Dio 120cc scooter to fit a 52.6mm Big Bore crankshaft in this detailed ...

Both the dual sport 690 Enduro R and supermoto 690 SMC receive upgrades for the 2026 model year, and both will be available to dealers in September.

Fujio Nagao, Yuzuru Shimamoto, The Effect of Crankcase Volume and the Inlet System on the Delivery Ratio of Two-Stroke Cycle Engines, SAE Transactions, Vol. 76, SECTION 1: Papers 670006–670125 (1968), ...

A significant part of these on-road emissions used to come from the crankcase — up to 30%, according to a 1962 study — but thanks to changes in engine design, that's no longer true.

In 2007, US EPA implemented the rule that the crankcase emissions be added to the tailpipe emissions to determine the total emissions from a diesel engine if the crankcase were not closed, but few ...

Crankcase ventilation is almost provided in all automotive engines. Its prime job is to prevent the dilution of lubricating oil present in crankcase which may lead to corrosion of crankcase metals ...

Crankcase Heaters The crankcase heater is a resistance heater that is strapped on, inserted, or connected in some way to the compressor’s crankcase. The crankcase heater is designed to help combat ...

In most cases of oil being in the air filter, there's an issue with a valve in the crankcase. Then you end up with too much oil on the filter, which can clog the microscopic holes that let air ...