Glossary “JAMA” Definition:
Japan Automobile Manufacturers Association.
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jackshaft
Glossary “jackshaft” Definition:
Shaft found in most overhead cam engines that can be used to drive the distributor, fuel pump, and oil pump.
Jacobs brake
Glossary “Jacobs brake” Definition:
Device more commonly known as Jake brake.
jacketed gasket
Glossary “jacketed gasket” Definition:
Gasket having metal grommets around bolt and water holes.
jackscrew
Glossary “jackscrew” Definition:
For belt tension adjustment on some vehicles.