i know what you are all saying not another variator post --- but i'm curious(sp) i took the plunge and with some help did my cambelt/idler/tensioner/variator/cam seals.it all runs great now not like a diesel.i was interested as to how it works so i cleaned it and stripped it.i must say its worth all of the £65 it cost to replace.on inspection i cannot find anything wrong with it--there is only one seal on it and that could be the week link in it.all the splines are unworn,if only i hadn't used stillsons to remove it i would rebuild it and try it in the future.
the only other thing i can say is when i put an air line on the end before i cleaned it i couldn't get it to move(didn't try to hard as i didn't want a face full of oil) .now it has been put together again it moves nice with only a small amount of pressure.so could it have been stuck in the advanced possition?hence the diesel sound?
has anyone rebuilt one with any success?
I often thought about taking my old one apart to 'see how it worked' (that old excuse lol) - never got round to it though, and even if I could recon it, like you, I mangled it with a Stilson wrench Any ideas what made it seize up? dry/lumpy/sticky oil?
i think the seal is available as a spare part,there is a big spring inside that holds the "piston" in the normal possition so if it had seized it must have been a large bit of goop.the only other thing i did was to clean the cam oil hole out with thinners.i think that it may have been old oil sticking the variator as the last owner only had it serviced once a year.i have changed the oil every 6 months in the 18 months i have had it.when i took the cam belt off i was shocked to see that the tensioner was black not white and had seized solid. the internals of the head were unmarked which was a nice sight for 94000 miles the only problem i had was getting the bottom pulley off as the bolts were very tight impact wrench needed.
who is going to be first to try a rebuild? its a shame its not a quick job to swap