camshaft pulleys

r055 · Post by **r055** » Wed Aug 22, 2007 4:50 pm

whats the difference between Non-VVC and VVC pulleys?

R

r055 · Post by **r055** » Wed Aug 22, 2007 5:04 pm

had a look in the parts manual and it appears to be quite a difference in the make up of both sets of pulleys?

Next Q...

anyone got any spare VVC cam pulleys (inlet/exhaust) they wish to sell me or know where I can get?

Ross

Rich H · Post by **Rich H** » Wed Aug 22, 2007 8:17 pm

Sorry mate, didn't know, feel free to pass them on to the next needy cause!

Got a none VVC head for sale in the classifieds though...

r055 · Post by **r055** » Thu Aug 23, 2007 4:31 pm

just got a price from Rover part place there...

Inlet pulley - £17.48
exhaust pulley - £125.38

Post by **Shug** » Thu Aug 23, 2007 5:20 pm

VVC Pulleys contain dark magic.

The inlet cam on a VVC is the one that does the timing shift, but it's actually connected at the other end to the exhaust cam - which has a pulley inside a pulley - look at the manual and get your head in a twist.

I don't even pretend to know exactly how it works.

Rich H · Post by **Rich H** » Thu Aug 23, 2007 5:22 pm

As I told you magic enters the VVC mechanism and the valve timing changes for the better. Just remember to keep the magic toped up, there is a filler cap on the top marked 710, just ask in halfords....

BiggestNizzy · Post by **BiggestNizzy** » Thu Aug 23, 2007 5:24 pm

VVC and how it works

http://www.mgcars.org.uk/news/news174.html

and you can see why it isn't cheap

roadboy · Post by **roadboy** » Fri Aug 24, 2007 8:34 am

None of the VVC magic takes place in the pulleys. The front exhaust pulley has a built-in damper, that's why its so expensive.

Both inlet pulleys (front & rear) and the rear exhaust pulley are identical. Only the front exhaust pulley is different.

HTH

Dan@JPS