Author	Subject: Valve question!
ian7675 Techno Viking Location: Gloucestershire Registered: 12 Oct 2007 Posts: 6,068 Status: Offline	Post #1 Just a quick question, I know roughly how a 4 stroke cycle works on an engine but what makes the valves open/close? Are they connected to the timing gear? ________________________________________ Less than 24 hours to go!
Posted 17th Feb 2010 at 01:35 Profile

welshpug! Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,839 Status: Offline

Post #2 ian7675 wrote: Just a quick question, I know roughly how a 4 stroke cycle works on an engine but what makes the valves open/close? Are they connected to the timing gear? is this a serious question?? serious reply - camshafts act on hydraulic self adjusting bucket tappets which act on the top of the valves camshafts driven by the timing belt. timing belt driven by the crankshaft. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.com Bring on the Trumpets.

Posted 17th Feb 2010 at 02:09 Profile

ian7675 Techno Viking Location: Gloucestershire Registered: 12 Oct 2007 Posts: 6,068 Status: Offline	Post #3 Yes it was a serious question, I'm just not that clued up on the details of engine internals and it would be nice to understand thoroughly what the more complex threads are about. Thanks for the reply. ________________________________________ Less than 24 hours to go!
Posted 17th Feb 2010 at 02:16 Profile

rudolf Seasoned Pro Location: Skelmersdale Registered: 07 Apr 2004 Posts: 2,769 Status: Offline	Post #4 They are pushed open by the cam lobes and closed by the valve springs. ________________________________________ S Reg Diablo standardsSpec SORNED R Reg Nile standard spec written off then repaired X Reg Astor in need of TLC R Reg Nile to restore Set of Lions to fit.
Posted 17th Feb 2010 at 02:20 Profile

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