Hawwy Posted October 4, 2012 Share Posted October 4, 2012 hibought a engine of a member on here and fitted now .basically it idle fine and everything but blows air from rocker cover when i remove oil cap? is it normal or something not quite right?cheers Quote Link to post Share on other sites
morgey Posted October 4, 2012 Share Posted October 4, 2012 Whilst its running? Quote Link to post Share on other sites
Hawwy Posted October 4, 2012 Author Share Posted October 4, 2012 yes mate whilest its on and idling then i take oil can cap off and then when i put my hand over it. Quote Link to post Share on other sites
morgey Posted October 4, 2012 Share Posted October 4, 2012 It will have a bit of pressure there as thats why you have your rocker cover breathers/pcv valve.Have you checked to see they're both open and flow air fairly easily? Im not sure how the pcv valve works tho so that may or may not pass air normally, so might be worth waiting to see what another member says Quote Link to post Share on other sites
Hawwy Posted October 4, 2012 Author Share Posted October 4, 2012 (edited) the breather i have got on it is new.also not sure i just got told by somebody that its not meant to pass air out from the oil cap.basically if i put my hand there i can feel it 'breathing' Edited October 4, 2012 by Hawwy Quote Link to post Share on other sites
Taggy Posted October 5, 2012 Share Posted October 5, 2012 No thats normal, there will be air blowing out of the cap when you open it purely because air is benig squashed around by the moving parts. What IS NOT normal, is misty air coming when you rev it. You shouldnt be getting any oil vapour from the top breather.Here is an example of what it should not be doing Quote Link to post Share on other sites
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