John Vine Posted February 17, 2007 Share Posted February 17, 2007 I've just changed the cambelt and automatic tensioner on my 1999 Supersport-R (mileage around 39K). When I came to remove the tensioner, I was shocked to discover that the pillar bolt (the one that locates the tensioner spring) was loose and at least halfway out of its hole. The last time I was poking about in there was when I retimed my verniers (about 9K miles ago), and the bolt was definitely tight then (and hadn't been loosened or removed since new). Is this a known problem, or am I just unlucky? Either way, I hate to think what would have happened had the bolt got tangled up in the belt. Link to comment Share on other sites More sharing options...
Johnty Lyons Posted February 17, 2007 Share Posted February 17, 2007 On a k the automatic tensioner is the devils spawn GET RID OF IT and revert to manual tensioner DVA will be along in a mo to support me. jj jj N.I. L7C AR. Membership No.3927. Link to comment Share on other sites More sharing options...
CageyH Posted February 17, 2007 Share Posted February 17, 2007 Automatic tensioner 🙅🏻♂️Schizophrenic Cagey says 🙅🏻♂️ I am a man of many personalities How else could he explain his multiple usernames? Only dead fish go with the flow....! Link to comment Share on other sites More sharing options...
Rob Walker Posted February 17, 2007 Share Posted February 17, 2007 Ah johnty, If only it were that simple, the tapped blind hole is in a different place. John, If you use Loctite on the bolt it will never come loose. Rob Link to comment Share on other sites More sharing options...
Myles Posted February 17, 2007 Share Posted February 17, 2007 If only it were that simple, the tapped blind hole is in a different place Later heads have both, I understand. Mine has the auto tensioner hole tapped out to accept the manual tensioner - as a result, I have to run the longer belt... 🙆🏻 🙆🏻 🙆🏻 🙆🏻 🙆🏻 Alcester Racing 7s Equipe™ 🙆🏻 🙆🏻 🙆🏻 🙆🏻 🙆🏻 Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
Johnty Lyons Posted February 17, 2007 Share Posted February 17, 2007 I have a later VHPD head retapped for the manual tensioner It's not a big job honestly. 😬 jj N.I. L7C AR. Membership No.3927. Link to comment Share on other sites More sharing options...
John Vine Posted February 17, 2007 Author Share Posted February 17, 2007 Thanks for the feedback, chaps... the devils spawnExcellent! . But what's wrong with it, exactly (apart from the pillar bolt)? If you use Loctite on the bolt it will never come loose.Good advice, Rob -- I did just that on reassembly. But why wasn't the original similarly treated, I wonder? It seems to have been designed specifically to trigger an expensive "moment." Later heads have both, I understand.What exactly is "later" in this respect, Myles? EU3? Will my EU2 take a manual tensioner as-is? JV Link to comment Share on other sites More sharing options...
Englishmaninwales Posted February 17, 2007 Share Posted February 17, 2007 Later heads have both, I understand. Not so, I'm afraid, Myles. I have a late EU3 cylinder head and it was necessary to drill and tap a hole for a manual tensioner. Malcolm Link to comment Share on other sites More sharing options...
CageyH Posted February 17, 2007 Share Posted February 17, 2007 What does the manual tensioner look like? Is it the top or bottom one here 🙅🏻♂️Schizophrenic Cagey says 🙅🏻♂️ I am a man of many personalities How else could he explain his multiple usernames? Only dead fish go with the flow....! Link to comment Share on other sites More sharing options...
Englishmaninwales Posted February 17, 2007 Share Posted February 17, 2007 The top one is the manual tensioner Link to comment Share on other sites More sharing options...
CageyH Posted February 17, 2007 Share Posted February 17, 2007 That is what I have 🙅🏻♂️Schizophrenic Cagey says 🙅🏻♂️ I am a man of many personalities How else could he explain his multiple usernames? Only dead fish go with the flow....! Link to comment Share on other sites More sharing options...
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