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Guest Message by DevFuse

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tensioner being stupid

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6 replies to this topic

#1 soobie_newbie67


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Posted 27 September 2012 - 06:14 PM

The hydraulic tensioner is being stupid. It pushed out and now I can't get the timing belt back on. Help please.

#2 cal_look_zero


    Subaru Nut

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Posted 27 September 2012 - 07:01 PM

Gotta unbolt it and compress it in a vice or c clamp. Put an allen key or something to hold it in place, install everything, and pull the key to release the tension.

#3 Fairtax4me



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Posted 27 September 2012 - 07:06 PM

That's it's job. That's how it works.
It needs to be SLOWLY compressed in a vice or large C-clamp. It should take somewhere in the range of 3 - 5 minutes. Use a small nail or Allen driver stuck through the holes in the tensioner housing and plunger to hold it back while you install it.
Posted Image



    I divided by zero

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Posted 27 September 2012 - 07:12 PM

which type do you have?


Posted Image

or this

Posted Image

taken from here

with either tensioner you must slowly push the piston back into the sleeve. if you push it in too quickly you may damage the internals, causing the tensioner to fail.

you will see, once the tensioner piston is all the way in. where the pin or allen key goes. (make sure you put the key in so it faces out)

hope this helps


#5 davebugs


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Posted 27 September 2012 - 07:23 PM

The old style (brass ones) were sturdy, reliable, and easily reusable.

The newer style seem less sturdy and expensive. But I'd usually replace them. IIR you have to pay close attention to their orientation when compressing hem too.

I take a long time to compress either of those.

If you wer ein the US I have a few "kits" including the aluminum piece that goes onto the block to allow use of the old style tensioner, an old style tensioner, bolts, etc.

#6 soobie_newbie67


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Posted 27 September 2012 - 07:27 PM

Got it. Successful timing belt installation. And I have the second style tensioner

#7 porcupine73


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Posted 13 October 2012 - 07:14 PM

Glad it's working, yes the second style (older style) is more durable and slightly more forgiving. The key is sllooowwww compression, especially on the newer style. Else it pukes out the silicone fluid and then you have to replace. Though replacement on the newer style ones isn't a bad idea anyway.

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