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Timing Belt Tension #446632
February 21, 2016 08:19 pm UTC
February 21, 2016 08:19 pm UTC
Joined: May 2010
Posts: 608
Toronto, ON
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Chris Browning Offline OP
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Chris Browning  Offline OP
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Hey guys,

I noticed when I had the car running today with the top T-belt cover off that I am getting vibrations in my timing belt between the cam gears at certain engine speeds. Im wondering if the tension is not correct on the belt or my tensioner is worn out, please have a look at the video below and let me know if it looks loose.

I had the belt off last month to change cams, I adjusted the tension by setting the tensioner pulley so that the grenade pin would move freely in and out of the hydraulic tensioner after rotating the engine over 5 times and letting it sit for 15 minutes.

If it is too loose I assume I would have to replace the hydraulic tensioner, this unit has about 60,000km on it.

Youtube Video


1995 Talon TSi AWD
Evo III 16G / FIC 850's / Walbro 255 / RTM FMIC / ECMLink V3
Re: Timing Belt Tension [Re: Chris Browning] #446635
February 22, 2016 12:28 am UTC
February 22, 2016 12:28 am UTC
Joined: Dec 2000
Posts: 4,398
Ajax, ON
Reza Mirza Offline
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From the first few seconds of your video, I can tell that either the tension has been set incorrectly or the tensioner is dead.


1G DSM: 1000+ AWHP, 9.2@162.83 MPH
Evo X: 746 AWHP, XR9569S pump gas
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Re: Timing Belt Tension [Re: Chris Browning] #446643
February 22, 2016 02:01 pm UTC
February 22, 2016 02:01 pm UTC
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Posts: 608
Toronto, ON
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Chris Browning Offline OP
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Chris Browning  Offline OP
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Thanks Reza, that's what I figured.

I'll take the tensioner off and check it in a vice, if it seems good I'll try to reset the tension, otherwise I'll get a new one.


1995 Talon TSi AWD
Evo III 16G / FIC 850's / Walbro 255 / RTM FMIC / ECMLink V3
Re: Timing Belt Tension [Re: Chris Browning] #447014
March 12, 2016 12:58 am UTC
March 12, 2016 12:58 am UTC
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Posts: 608
Toronto, ON
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Chris Browning Offline OP
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Well, I got the tensioner out tonight and discovered that it isn't OEM so I'm going to replace it anyway although it does appear to still be fine (it's very difficult to compress).

I'm going to order the tensioner pulley tool so that I can do the tensioner procedure by the book, hopefully that combined with the new tensioner will solve my issues.


1995 Talon TSi AWD
Evo III 16G / FIC 850's / Walbro 255 / RTM FMIC / ECMLink V3
Re: Timing Belt Tension [Re: Chris Browning] #447773
April 18, 2016 05:53 pm UTC
April 18, 2016 05:53 pm UTC
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Toronto, ON
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Chris Browning Offline OP
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The new OEM tensioner set using the grenade pin method cleared up this problem, the belt now runs flats between the cams without any visible vibration at all engine speeds.


1995 Talon TSi AWD
Evo III 16G / FIC 850's / Walbro 255 / RTM FMIC / ECMLink V3

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