The 75 and ZT Owners Club Forums - View Single Post - Crankcase Breather Hose

planenut · 22nd May 2019, 08:17

Now this may seem a stupid question to some, so, sorry.

On my 1.8T the breather hose from the crankcase to the inlet manifold has a small valve in it. I do realize that the idea of the breather is to vent the crankcase relieving the pressure, but as there is not a valve on my 1.8 NA, is it absolutely necessary?

Investigating the possible further failure of the "head gasket" and having explained elsewhere, the crankcase cover had a build up of mayo, and I wondered, if it had been vented properly would these particles have been cycled round and burnt off?

22nd May 2019, 08:17	#1
planenut Regional Secretary Rover 1.8T Tourer Join Date: May 2007 Location: Heathrow Posts: 6,948 Thanks: 1,551 Thanked 2,036 Times in 1,264 Posts	Crankcase Breather Hose - direction Now this may seem a stupid question to some, so, sorry. On my 1.8T the breather hose from the crankcase to the inlet manifold has a small valve in it. I do realize that the idea of the breather is to vent the crankcase relieving the pressure, but as there is not a valve on my 1.8 NA, is it absolutely necessary? Investigating the possible further failure of the "head gasket" and having explained elsewhere, the crankcase cover had a build up of mayo, and I wondered, if it had been vented properly would these particles have been cycled round and burnt off?