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  #41  
Old June 4th, 2012, 11:50 AM
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Jackie Treehorn
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Quote:
Originally Posted by defeyago View Post
Hi Jackie: In the following post from our Argentinian LR Club you can see differences between a good tensioner and a warped one. Even see a video with the old warped one and the chirping, and a video with the new one installed and the chirping gone. Itīs in spanish but you can look at the pictures/videos (or use google translate)

http://landroverclub.com.ar/viewtopic.php?t=33

Cheers,
that's a great explanation/illustration, thank you!
I'll remover the tensioner tonight and check the tolerances before I order a new one for roughly $275! I thought the noise would originate in the high-speed bearing, but maybe it is coming from the pivot bearing?
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  #42  
Old June 4th, 2012, 12:55 PM
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Carl Jonsson
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You can get a much cheaper tensioner. Order it from LR Series, Brit-car or George at RDS. Should cost you about $120.

Stop using belt dressing and replace the belt with a new one. When the belt is off check for play in any of the pulleys. I have a thread on here as well about my belt squeal issues. Search for it and read through it as I got a lot of helpful suggestions.
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  #43  
Old June 4th, 2012, 03:18 PM
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Put a penny behind the tensioner, the chirp should disappear
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  #44  
Old June 5th, 2012, 07:48 PM
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So upon closer inspection and while taking off the tensioner I noted that the mounting stud had a littel play in it. As it turns out, someone in the past must have overtorqued the stud or the nut and stripped out the alloy threads in the mounting bracket because when I removed the stud a thread helix insert came out with it. The threads aren't completely stripped, but you can't effectively torque the stud and nut for the tensioner enough to stop it from having play (hence the shimmy and squeaks).

Okay, so now that I think the problem has been identified, what is the most efficient solution. Aside from the obvious (ordering a new cast alloy mounting bracket/water jacket seems like a bit excessive). If so, anyone have a 300Tdi bracket/waterpump housing they could part with?

Has anyone re-tapped this material with a larger thread/stud? or would this be construed as a bush-mechanic solution? I'd love to avoid taking the mounting bracket off and/or replacing it altogether.
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  #45  
Old June 5th, 2012, 09:20 PM
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Jason Lavender
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I had the same exact problem with mine, several of the holes actually, but noticed it when I had all the parts out. I took it to a machine shop and they were able to fill / retap to same original bolt threads. It may be a pain in the ass, but you may want to do the same - unless someone else says retapping in place with a bigger thread is no big deal.
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  #46  
Old June 5th, 2012, 10:53 PM
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Quote:
Originally Posted by nathanwind
I had the same exact problem with mine, several of the holes actually, but noticed it when I had all the parts out. I took it to a machine shop and they were able to fill / retap to same original bolt threads. It may be a pain in the ass, but you may want to do the same - unless someone else says retapping in place with a bigger thread is no big deal.
I'm thinking of trying to find a similar stud with either coarse threads or 1 size up on the mounting end and try to fix it without removing the bracket. Not much downside in trying.
If that doesn't work I'll remove and bring to a machine shop I guess.
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