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SVTPerformance's Chain of Restaurants
The Blower Bistro
Let's talk about belt tensioners!
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<blockquote data-quote="DSG2003Mach1" data-source="post: 13889053" data-attributes="member: 16477"><p>IMHO, the Thump tensioner is bullshit for what they charge.</p><p></p><p>I bought mine second hand and I dunno if it was missing the mounting bolt or I just didnt see it but they wouldnt even sell me a replacement. They finally got me the specs and the bolt is waaaay too long, took several stacked washers to shim it out (so I figured out the right length and got a shorter one).</p><p></p><p>I didnt notice until I installed it and had a god awful noise that the pulley they supply rubs the body of the tensioner because their tolerances are off (its not a bearing issue), Ive seen pictures of several others doing it too. If you try to shim it off with the smallest shim you can find that will fit, the pulley will then hit the timing cover. We machined it down around 15 thousandths on both sides (it could have fit a 10 rib belt with room to spare before). </p><p></p><p>According to another member (that also had the rubbing issue) the way the single bolt tensioner is setup its not quite clocked correctly, he claims Thump was aware when he spoke to them but apparently they havent changed anything as far as I know</p></blockquote><p></p>
[QUOTE="DSG2003Mach1, post: 13889053, member: 16477"] IMHO, the Thump tensioner is bullshit for what they charge. I bought mine second hand and I dunno if it was missing the mounting bolt or I just didnt see it but they wouldnt even sell me a replacement. They finally got me the specs and the bolt is waaaay too long, took several stacked washers to shim it out (so I figured out the right length and got a shorter one). I didnt notice until I installed it and had a god awful noise that the pulley they supply rubs the body of the tensioner because their tolerances are off (its not a bearing issue), Ive seen pictures of several others doing it too. If you try to shim it off with the smallest shim you can find that will fit, the pulley will then hit the timing cover. We machined it down around 15 thousandths on both sides (it could have fit a 10 rib belt with room to spare before). According to another member (that also had the rubbing issue) the way the single bolt tensioner is setup its not quite clocked correctly, he claims Thump was aware when he spoke to them but apparently they havent changed anything as far as I know [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Blower Bistro
Let's talk about belt tensioners!
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