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-   SV Talk, Tuning & Tweaking (http://forums.sv650.org/forumdisplay.php?f=111)
-   -   Rattling noise from front cylinder (http://forums.sv650.org/showthread.php?t=81775)

transparent_opacity 30-12-06 12:52 AM

This sounds exactly like the problem I was going to describe!

I shall purchase a Haynes and order a new tensioner this week. I'm not scared of the spanners (done engine rebuilds before) so hopefully this will be an easy fix...fingers crossed!

I picked my 2000 SV650S up on Boxing Day. 25k on the clock on makes all the noises described. I thought it might have been chain tensioner - but newbie V-twin question here - are there 2 chains & 2 tensioners on a twin, or one chain/tensioner between the 2 cylinders?

I've only owned 4cyl bikes before (2xCBR600F's & a 250 Bandit) and have no twin experience, but how much vibration should I be experiencing? I'm not expecting super-smooth, but mine feels like a washing machine on full spin! :)

Stig 30-12-06 01:48 PM

There are two tensioners/camchains, one for each cylinder. They really are that difficult to change yourself, just fiddly. So long as you do not crank the engine whilst they are out, you should not have a problem. In some cases, it could be that the tensioner has just got stuck. I have taken mine out, gave them a bit of an oil and put them back in and they have worked just fine again.

I'm sure if you used the search facility on the site that you would find as much information that you need to complete the task.

I agree with Spanner Man. I would not ignore it but get it fixed as soon as you can.

RandyO 30-12-06 02:51 PM

SV cam chains are what is noisey, not the tensioners

by design (for what reason I don't know) the automatic tensioners allow the cam chain to get rather loose before they have enuf play to take the slack up

THIS IS NORMAL on the SV, the tensioner is not broken, putting a new tenioer in and taking up the slack prematurely will only stretch the cam chain faster, it will get noisey again and again

RingDing 30-12-06 04:43 PM

With my K3 (8500 miles), it got a bit noisy. It lasted about 500 miles and then the tensioner took up the slack (as it is supposed to do) and everything was fine again. I would agree with RandyO, it's just a bit slow about doing its job that's all.

IMO, unless your bike is very high mileage then I wouldn't think there is cause to replace the tensioner.

I know SV's have a rep for noisy cam chains but I don't believe they have a rep for tensioners failing.

socommk23 30-12-06 05:18 PM

mine were noisey for some time....put plenty of miles on it and never had a problem.


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