Guest frenchy205tt Posted October 20, 2008 hello chaps I have bin doing abit on my head today got it stripped down but came across a crack... not good is it think doubt it can be repaired can it? also i have removed valves and springs and found this plastic bung type thing it goes round the hole where the valves feed through through the rest are in but this one has split and came out does anybody no what it is? many thanks Share this post Link to post Share on other sites
welshpug 1,624 Posted October 20, 2008 its not a crack but a drain. second picture is a valve stem oil seal, replace Share this post Link to post Share on other sites
Guest frenchy205tt Posted October 20, 2008 o rite lol valve stem oil seals right... whats the cap at the top of the valve spring called that has the little colletts in? thanks Share this post Link to post Share on other sites
Cameron 16 Posted October 20, 2008 Retainer. I remember panicking the first time I saw that too! Share this post Link to post Share on other sites
Guest frenchy205tt Posted October 20, 2008 strange if you ask me looks so much like a crack... dont suppose any of you that have had the crank out had any trouble getting the main bearings out did you? the rest have come out but the one in the middle with the studs wont shift? many thanks josh Share this post Link to post Share on other sites
Tom Fenton 1,526 Posted October 20, 2008 Undo the two bolts at the side of the block on the external face that cross bolt the centre main into place. A very common mistake for an amateur XU engine builder! Share this post Link to post Share on other sites
Guest frenchy205tt Posted October 20, 2008 o rite bloody hell im not doing much right at the moment o well its all a learning curve thanks alot Share this post Link to post Share on other sites
Cameron 16 Posted October 20, 2008 It's a really simple mistake to make, especially when most XU blocks are covered in so much oil and crap that they get hidden. Might be worth getting a Haynes manual if it's your first time having one apart, torque wrench settings are your friend! Share this post Link to post Share on other sites
