I wish I could tell you exactly how the belts are replaced on a Kenmore 158.1941.I had the same Kenmore model,I never had to replace a belt on that model.I still have 3 boxes with Kenmore 158.1941 sewing machine accessories,cams,monogrammer and more. I loaned the machine to someone I thought was a very reliable person.Not !
[edit on Wikidata] The peak expiratory flow (PEF), also called peak expiratory flow rate (PEFR) is a person's maximum speed of expiration, as measured with a peak flow meter, a small, hand-held device used to monitor a person's ability to breathe out air.
A MAF measures how much Air (in Grams) is entering the engine. It also measures the Temperature of said air. It is a highly accurate device. Some are better than others regarding restriction.Here is an excellent article on Air Flow sensors including MAF devices.Hope this helps. MAF measures how much Air (in Grams) is entering the engine. It also measures the Temperature of said air. It is a highly accurate device. Some are better than others regarding restriction.