300 tdi Drive Belt Tensioner? - Defender Source
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  #1  
Old December 14th, 2013, 10:25 PM
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Ben Goodwin
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300 tdi Drive Belt Tensioner?

I just discovered that my main belt tensioner is locked up. Not the pulley, but the tension spring. I took it off, put it in the vice and was able to move it about half way and it didn't move back at all when I let it go.

The casing says Dayco and the part number looks to be "T12030". I have no way of knowing if this is the correct original part as you can't zoom in far enough on the rovers north site to read the Dayco number. But even the pro-line replacement is $112. I just did a tune-up on my suburban and the tensioner was $28.

Does anyone know the Dayco part number for the 300tdi main tensioner? Or somewhere to get one for a reasonable price? The only other numbers are a "7" on the pulley bolt and a "2" on the spring tab that sticks out.
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  #2  
Old December 14th, 2013, 11:15 PM
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Neill Thornton
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If you don't need it in a hurry, Paddock has them for 25 quid. The LR part number is ERR4708.

If you do need it now, you will pay Rovers North their 300 dollar asking price plus shipping.
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Old December 15th, 2013, 03:21 PM
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Rovahfarm has them, 72 bux.
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  #4  
Old December 15th, 2013, 04:33 PM
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I'm always surprised when people 1st look to RN to get parts, maybe not, after all they do gold plate them.
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Old December 15th, 2013, 06:24 PM
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Neill Thornton
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I look first because 99% of the time they have the part. Their web site is also better than any other stateside defender stockist. They also answer the phone every time.

You pay for all of that convenience.
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Old December 16th, 2013, 07:57 PM
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Neill, I f I was in the same situation you were on your trip to Alaska a couple of seasons ago, I'd have ordered my parts from RN just as you did.
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Old December 17th, 2013, 07:29 AM
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Julien Dalbin
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The tensioner spring do get seized with time, you have to spray some WD-40 inside from time to time.
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Old December 17th, 2013, 02:21 PM
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Ben Goodwin
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Quote:
Originally Posted by JFD View Post
The tensioner spring do get seized with time, you have to spray some WD-40 inside from time to time.
I have had mine soaking in penetrating oil since Friday and it isn't moving.
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Old December 17th, 2013, 02:27 PM
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there is supposed to be plastic in between the two halves. i think maybe if the plastic is gone then the aluminum starts to gall and the two halves seize together. Also I think they can wear so that the halves are not parallel to each other, which causes belt noise.

Better to replace, I've had good luck with the one i bought from George @ RDS.


Quote:
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I have had mine soaking in penetrating oil since Friday and it isn't moving.
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