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A shaft in an ICE that actuates components that open valves into the combustion chamber to allow the flow of necessary gasses in order for a combustion process to function.

11 votes
3 answers
10k views

What exactly is a jackshaft?

The Wikipedia entry for the Ford Cologne 4.0L SOHC describes the use of a "jackshaft": It uses a jackshaft in place of a camshaft to drive a timing chain to each cylinder head. …
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17 votes
5 answers
41k views

When does it make sense to replace a camshaft?

Questions What things could happen to a camshaft that warrant its complete replacement? … For the different ways that a camshaft can fail/break, are there any techniques out there to salvage a damaged camshaft? …
Zaid's user avatar
  • 39.2k