GMC Posted April 4, 2012 Share Posted April 4, 2012 (edited) Hi all, Have a look at the picture below......... I know the cam pulleys should be at 12 o'clock and the crank pulley at 6 o'clock. If you look closely at line 2, the timing mark on the pulley is pointing to about 12.03, which is closer to the notch on the cover. If I move the cam pulley back one tooth, it'll point to 12 (look at line 1) but not line up with the notch. Which is right, 1 or 2? Edited April 4, 2012 by GMC Quote Link to comment Share on other sites More sharing options...
mickappy Posted April 4, 2012 Share Posted April 4, 2012 2 is right. when u tension ajuster pulley then spin engine by hand 3 times it will line up. Quote Link to comment Share on other sites More sharing options...
GMC Posted April 5, 2012 Author Share Posted April 5, 2012 Thanks for that, but isnt position 1 closer to the 12 o'clock position? What I should have mentioned was that the car has been running, but is 'lumpy' and ticks over rough, everything else seems fine hence why I'm looking at the timing? If I move it back 1 tooth whats the tolerance in terms of valve/piston 'relationship', is it likely to cause a worry? Quote Link to comment Share on other sites More sharing options...
mickappy Posted April 5, 2012 Share Posted April 5, 2012 sounds like ur 1 tooth out on one of the pulleys. once youve timed it up turn it by hand and if its wrong it will stop. theres not much clearance between valve and piston. Quote Link to comment Share on other sites More sharing options...
Kevin Abbott Posted April 5, 2012 Share Posted April 5, 2012 There should be a set amount of teeth on the belt in-between in the cam pulleys. Set it to that then take the slack put of the system by getting the belt tight in-between the pulleys by locking them together( i have a block i put inbeween the cam pulleys) then nipp up the belt on the crank pulley. That then allows you to take the slack out of the belt on the tensioner. As Mick said, rotate twice on the crank and check the alignment. Cheers Kev Quote Link to comment Share on other sites More sharing options...
Kevin Abbott Posted April 5, 2012 Share Posted April 5, 2012 Have you got the crank timing spot on? If I remember correctly the timing mark on the xe crank pulley for TDC is around the 2 o'clock mark? Quote Link to comment Share on other sites More sharing options...
GMC Posted April 7, 2012 Author Share Posted April 7, 2012 Sorted!! Inlet cam was 1 tooth out. Now running like a finely tuned choir!! Ps, Kevin, the pulley timing mark is at about 2 o'clock, but the actual toothed pulley underneath is 6 o'clock. Best to go with the toothed belt as the pulley isn't 100% accurate. Thanks for ur help guys! All sorted now!! Quote Link to comment Share on other sites More sharing options...
dtm Posted April 25, 2012 Share Posted April 25, 2012 correct me if im wrong but are you using a newer type (square tooth) belt with the old (round tooth) pulleys? Quote Link to comment Share on other sites More sharing options...
mickappy Posted April 25, 2012 Share Posted April 25, 2012 eagle eyes, yep u got wrong belt on there:-0 Quote Link to comment Share on other sites More sharing options...
Mark Inman Posted April 26, 2012 Share Posted April 26, 2012 good, spot.. thats a recipie for a slip if i ever saw one Quote Link to comment Share on other sites More sharing options...
GMC Posted April 30, 2012 Author Share Posted April 30, 2012 cheers guys, will check this out urgently!! Quote Link to comment Share on other sites More sharing options...
Mark.W Posted October 30, 2012 Share Posted October 30, 2012 Hi sorry for bumping a old thread up but im on fitting a new timing belt kit and can't get it marked up 100% and mine looks exactly like yours in that top pic. How did you correct this? Here is mine. Quote Link to comment Share on other sites More sharing options...
GMC Posted October 30, 2012 Author Share Posted October 30, 2012 Hi Mark, Looking at your pics, the right hand pulley is spot on, the left hand pulley is one tooth out. The difficulty is, the left hand pulley naturally wants to sit in the loction it is at the moment. Pull the belt off and have somebody hold the left hand pulley with a ratchet and socket in the postion you need it and refit the belt. It can take a few goes, but you'll get it right eventually. Hope this helps, give me a shout if you need any more info Quote Link to comment Share on other sites More sharing options...
Mark.W Posted October 30, 2012 Share Posted October 30, 2012 Thanks for the reply Gerry. Here is how our 1st attempt went before those pics above which was our second attempt.We had the left pulley 1 tooth to the left but it had a lot of slack on the belt between the too cam pulleys. Belt tension seemed fine here. But up top here was too slack for our likeing. Quote Link to comment Share on other sites More sharing options...
Kevin Abbott Posted October 31, 2012 Share Posted October 31, 2012 (edited) I've no valvers left any more to check but like I said above there is a set amount of teeth in between the pulleys. I used to set that and zip tie the belt to the pulleys. Then rotate the inlet pulley anticlockwise to take out slack. This will set the inlet timing marks slightly off. Then chase the slack down to the crank and that leaves all the slack in the tensioner side. Give that a good tighten and the long part of the belt should not be able to turn 90degrees when twisted. It's the cam lobes that is throwing the position off in the inlet pulley slightly. Ill see if I can find the correct teeth amount in my books later ;-) Edited October 31, 2012 by Kevin Abbott Quote Link to comment Share on other sites More sharing options...
Kevin Abbott Posted October 31, 2012 Share Posted October 31, 2012 (edited) Double post edit Edited October 31, 2012 by Kevin Abbott Quote Link to comment Share on other sites More sharing options...
Mark.W Posted October 31, 2012 Share Posted October 31, 2012 Thanks Kevin that would be great if you could Quote Link to comment Share on other sites More sharing options...
Mark.W Posted October 31, 2012 Share Posted October 31, 2012 Got some better quality pictures of where all pullys is at right now so its a bit more clearer. Quote Link to comment Share on other sites More sharing options...
Mark.W Posted November 2, 2012 Share Posted November 2, 2012 Any joy finding out the set amount of teeth in between the pulleys Kev? Quote Link to comment Share on other sites More sharing options...
Kevin Abbott Posted November 2, 2012 Share Posted November 2, 2012 Not yet mate. Work and kids keeping me out of the garage. Il check ASAP ;-) Quote Link to comment Share on other sites More sharing options...
Mark.W Posted November 2, 2012 Share Posted November 2, 2012 Quote Link to comment Share on other sites More sharing options...
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