Could be wrong...
But I thought the oil pressure activates the rockers for the lobes required?
Iggy Sandejas
Sydney NSW
Datsun 1600 FJ20t
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, 26 September 2001 14:06
To: [EMAIL PROTECTED]
Subject: Re: Varable Cam Timing
The honda V-tec system has two lobe profiles ground side by side for each
valve. The whole camshaft slides forward or backward using engine oil
pressure to change from the mild to wild profile.
Nick
>
> From: "Williams, Ritchie (Vertex
Hamilton)"<[EMAIL PROTECTED]>
> Subject: Re: Varable Cam Timing
> Date: 26/09/2001 15:39:37
> To: [EMAIL PROTECTED]
>
> James
>
> The most common way I've seen is a chain/belt tensioner on the tight side
of the chain/belt
> activated by a hydraulic cylinder.
>
> As the cylinder pushes the tensioner the tight side of the chain/belt
effectively becomes shorter
> therefore advancing the cam timing. As the revs go up the more the cam
advances. This is all
> controlled by the engine computer.
>
> There are other variations on this theme.
>
> --
> Ritchie Williams
> Manager - Design Technology
> Vertex Pacific Limited
> 696 Te Rapa Rd
> Private Bag HN3044
> Hamilton
> New Zealand
> ph 64 7 8493 999
> fax 64 7 8498 764
> e-mail [EMAIL PROTECTED]
>
>
>
>
>
>
> James Cox wrote:
>
> > Ok I know this is a little off topic, but does anyone know how VCT
physicaly
> > works? Yes I know about the benifits of advanced timeing at higher
revs, I
> > was just curious how they do this mechanicly in the new engines.
> >
> > James Cox
> >
> > _________________________________________________________________
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>
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