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Matt
Matt, Mechanical Engineer
Category: Car
Satisfied Customers: 21621
Experience:  BEng hons Mech engineering, in auto industry 22 years
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What would cause a timing tensioner to giveway

Resolved Question:

What would cause a timing tensioner to giveway
Submitted: 3 years ago.
Category: Car
Expert:  Matt replied 3 years ago.
Hello

usually a tensioner will fail due to metal fatigue so this could be down to corrrosion or a lot more vibration / cycles than its expected to see

as the part was quite new corrosion is unlikely

so either the belt was too loose or the mounting for the tensioner isn't straight and true

I'd 1st suspect that the belt may have stretched or is too long and if thats Ok then double check the mounting face on both parts has no debris caught between the two faces and the mounting screw hasn't been cross-threaded

if all of this is OK then the last possibility is that the part was of low quality and not made to the manufacturers standard
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