From: A.Lee on 5 May 2010 06:56 My exhaust camshaft has been damaged (VW1.8, 20v, non turbo). I've had trouble finding the specific cam for a non-turbo engine, but have find one for a turbo engine. Physically, they are very similar, apart from the camshaft gives around 1mm less lift (i.e., the cam lobe is higher on the non-turbo camshaft). Any idea if it would work with this cam? I'm assuming it would run, but what problems could I expect - reduced power and possible burnt valves are 2 suspects I immediately thought of, anyone have any views on it? Ta Alan. -- To reply by e-mail, change the ' + ' to 'plus'.
From: Mrcheerful on 5 May 2010 07:01 A.Lee wrote: > My exhaust camshaft has been damaged (VW1.8, 20v, non turbo). > > I've had trouble finding the specific cam for a non-turbo engine, but > have find one for a turbo engine. > Physically, they are very similar, apart from the camshaft gives > around 1mm less lift (i.e., the cam lobe is higher on the non-turbo > camshaft). > > Any idea if it would work with this cam? > I'm assuming it would run, but what problems could I expect - reduced > power and possible burnt valves are 2 suspects I immediately thought > of, anyone have any views on it? > > Ta > Alan. sounds as though it would be a milder cam than original and so should work fine.
From: Conor on 5 May 2010 11:02 On 05/05/2010 11:56, A.Lee wrote: > Any idea if it would work with this cam? Yes it would. > I'm assuming it would run, but what problems could I expect - reduced > power and possible burnt valves are 2 suspects I immediately thought of, > anyone have any views on it? Loss of performance from lack of lift and increased duration. -- Conor I'm not prejudiced. I hate everyone equally.
From: Grimly Curmudgeon on 5 May 2010 15:54 We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember alan(a)darkroom.+.com (A.Lee) saying something like: >My exhaust camshaft has been damaged (VW1.8, 20v, non turbo). > >I've had trouble finding the specific cam for a non-turbo engine, but >have find one for a turbo engine. >Physically, they are very similar, apart from the camshaft gives around >1mm less lift (i.e., the cam lobe is higher on the non-turbo camshaft). > >Any idea if it would work with this cam? >I'm assuming it would run, but what problems could I expect - reduced >power and possible burnt valves are 2 suspects I immediately thought of, >anyone have any views on it? No reason you would burn a valve, but expect a bit less power. Not much less, and possibly not even noticeable.
From: Rob on 5 May 2010 19:56 On 5/05/2010 8:56 PM, A.Lee wrote: > My exhaust camshaft has been damaged (VW1.8, 20v, non turbo). > > I've had trouble finding the specific cam for a non-turbo engine, but > have find one for a turbo engine. > Physically, they are very similar, apart from the camshaft gives around > 1mm less lift (i.e., the cam lobe is higher on the non-turbo camshaft). > > Any idea if it would work with this cam? > I'm assuming it would run, but what problems could I expect - reduced > power and possible burnt valves are 2 suspects I immediately thought of, > anyone have any views on it? > > Ta > Alan. > I would check the profile of the cam and get the actual figures. Duration angles and lift. the turbo cam may be very detrimental to the performance. A suggestion, not sure what has been damaged - lobes or journals, is to ask a performance shop can they get the camshaft reground or an exchange one. or ask a dealer if they have any warranty ones kicking around. They change heads as a unit so may have a cam. r
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