Glover Posted August 26, 2019 Share Posted August 26, 2019 Help needed. Problems again, cranking the car by hand to make sure everything is good and when we’ve don’t one full rotation the belt is out by one tooth and it has us confused. Anyone come across this before ?! Quote Link to comment Share on other sites More sharing options...
Josh42 Posted August 26, 2019 Share Posted August 26, 2019 As frustrating as it is, I would remove the belt and realign the OEM match marks on the cam gears + crank pulley again and refit. each of the cam gears should have a a line etched into them and the crank pulley is the white line to be matched to zero on the crank cover. Quote Link to comment Share on other sites More sharing options...
Josh42 Posted August 26, 2019 Share Posted August 26, 2019 Also, did you follow the guide for tensioning the belt up? Quote Link to comment Share on other sites More sharing options...
Glover Posted August 26, 2019 Author Share Posted August 26, 2019 Yeah followed the guide exactly! New tensioner, new belt etc, we’re just doing that now to figure out why and refit it again like you said! Cheers Quote Link to comment Share on other sites More sharing options...
Glover Posted August 26, 2019 Author Share Posted August 26, 2019 All stripped and put back on again and every time we crank by hand it moves one tooth on the belt but the bottom marks and the marks on the cam wheels are exactly where they need to be ? Dodgy belt maybe? Absolutely baffled Quote Link to comment Share on other sites More sharing options...
mellonman Posted August 26, 2019 Share Posted August 26, 2019 Are you making sure that you have turnt the crank so the slack is at the tensioner side and then pulled the pin on the tensioner Quote Link to comment Share on other sites More sharing options...
Glover Posted August 26, 2019 Author Share Posted August 26, 2019 It’s okay I think we were over thinking it, the marks line up on the bottom crank to the mark on the engine and the marks on the cams line up with the grooves, we marked the belt but the belt would move one every time I believe ! Cranked it quite a few times by hand now and all the marks on the car line up perfect ! I could be wrong about the belt thing though if someone wants to correct me! Quote Link to comment Share on other sites More sharing options...
Andy Blyth Posted August 26, 2019 Share Posted August 26, 2019 I don't think there's any requirement for the belt to be in the same place after a full revolution of the camshaft. The timing marks on each cam pulley should line up with the corresponding marks on the metal cover behind the pulleys, and the crank should line up too after a full rotation. I don't remember if there's a good mark on the main crank pulley, but there is one on the crank timing pulley. Or another way, if you divided the number of teeth on the belt by the number of teeth on a cam pulley, you wouldn't get a whole number. Quote Link to comment Share on other sites More sharing options...
Glover Posted August 26, 2019 Author Share Posted August 26, 2019 Yeah that’s exactly what we’ve realised, we’ve just had w brain dead moment and thought the belts marks had to line up! All the marks that should line up, do line up ! Cheers for the replies anyways ! Quote Link to comment Share on other sites More sharing options...
evinX Posted August 26, 2019 Share Posted August 26, 2019 After a few rotations itll line up lol Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted August 27, 2019 Share Posted August 27, 2019 As long as the timing marks on the crank and the cams line up with the marks on the engine it will be fine, forget the belt Quote Link to comment Share on other sites More sharing options...
Glover Posted August 27, 2019 Author Share Posted August 27, 2019 As long as the timing marks on the crank and the cams line up with the marks on the engine it will be fine, forget the belt Yeah we did, we were just overthinking it and all the marks are lifting up fine. Fired it up and it’s running, just got to tweak it now to get it running spot on! Quote Link to comment Share on other sites More sharing options...
Noz Posted August 27, 2019 Share Posted August 27, 2019 I bet that was a scary fire up lol Quote Link to comment Share on other sites More sharing options...
Glover Posted August 27, 2019 Author Share Posted August 27, 2019 Yeah especially after me and my dad tackled the Blown head gasket ourselves. Started first time and when we got it ticking over nicely it sounded sweet! Just a few little things to rectify like the tick over, bleeding the water system because it’s got an airlock in the heater matrix now. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted September 6, 2019 Share Posted September 6, 2019 I don't think there's any requirement for the belt to be in the same place after a full revolution of the camshaft. The timing marks on each cam pulley should line up with the corresponding marks on the metal cover behind the pulleys, and the crank should line up too after a full rotation. I don't remember if there's a good mark on the main crank pulley, but there is one on the crank timing pulley. Or another way, if you divided the number of teeth on the belt by the number of teeth on a cam pulley, you wouldn't get a whole number. Err, quite, quite, this man knows.... Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.