Ok, since day one my car has bucked. It is slightly better with standard airfilter and housing on, but still not brilliant, so about a year ago I did the breather mod.
This did help but did not totally eradicate the problem. I think this might be because I was paranoid that oil would pass the plate, through the oil breathers and to the throttle body, so was quite sparce on number of and size of holes.
So does it seem logical to people that if I had done bigger/more holes I would have completely solved the problem?
Does anyone have any real sucess stories regarding the old breather mod, or is it a bit of a waste of time really- could it just be the fact that warm air is being drawn in be the reason the car behaves badly despite efforts to get a good cold air feed?
leave the part of the plate that is near the breathers (2 small ones that is) alone, but drill everywhere else, the oil splashes back down on the cams and this actually reduces the amount of oil that surges into the breathers on hard cornering for example
While looking at the breathers on my turbo I came up with a restrictor between the inlet manifold and the small breather between the throttle and the engine. I'm sure that this is the same on the XE.
If this is blocked maybe the crankcase could become pressurised, gas rushes round the other way (large breather but via idle air valve), idle valve closes to stop idle increasing, idle dies off & pressure builds up.......juddering!
Originally posted by M_Clayton While looking at the breathers on my turbo I came up with a restrictor between the inlet manifold and the small breather between the throttle and the engine. I'm sure that this is the same on the XE.
nope it isnt.
this is only on the turbos and its a non return valve.