Alex_H Posted March 29, 2012 Report Share Posted March 29, 2012 Yo people, Got a zx6r of a friends in my shed with a noisy motor, on the rhs, top half. We thought the cct might be knackered but to prove it I've turned it into a manual one by using a bolt through the end to hold the tensioner out. Anyway, this has made naff all difference so I'm not entirely sure what else could be wrong. We've had the cam cover off for a browse and theres nothing that looks out of place, cam journals and cams look ok, no scuffs or obvious lack of oil. Have a listen to this vid and let me know what you think: http://s432.photobucket.com/albums/qq44/Alex_H/?action=view¤t=VIDEO0008.mp4 It's not a marvelous vid but you get the idea, Any help much greatfully received! Link to comment Share on other sites More sharing options...
BudgetBoy Posted March 29, 2012 Report Share Posted March 29, 2012 If the gap setting on the shims are all ok,then it sounds like piston slap to me. Bad rings.. Edit:- Of course it could be a bad valve.. Do a compression test on the engine. Link to comment Share on other sites More sharing options...
BudgetBoy Posted March 29, 2012 Report Share Posted March 29, 2012 What year is the ZX6 mate? Link to comment Share on other sites More sharing options...
Alex_H Posted March 29, 2012 Author Report Share Posted March 29, 2012 It's a 97. If it was a bad valve, would it still pull ok? As besides the racket, it does actually ride ok. I'll double check the valve clearances later, cheers Link to comment Share on other sites More sharing options...
BudgetBoy Posted March 29, 2012 Report Share Posted March 29, 2012 It's a 97. If it was a bad valve, would it still pull ok? As besides the racket, it does actually ride ok. I'll double check the valve clearances later, cheers Hard to say mate.Does the noise go away when its warm? TBH it could be a number of things as with any fault..If it were me i would run a compression test both wet and dry and see what the readings say. The valve settings for your bike are Inlet = 0.15-0.24 Exhaust = 0.22-0.31 Spark gap 0.7-0.8 Do those and then go from there. Link to comment Share on other sites More sharing options...
Alex_H Posted March 29, 2012 Author Report Share Posted March 29, 2012 Noise is just as bad when warm. Will check clearances tonight and do a comp test, and will report back, cheers mate Link to comment Share on other sites More sharing options...
BudgetBoy Posted March 29, 2012 Report Share Posted March 29, 2012 No probs mate. If the noise is there when warm it might be that you have a broken valve spring.these things are hard to diagnose over the web.lol Do the 1st things and then see what you get.At least it will tell you what condition the engine is in. Link to comment Share on other sites More sharing options...
Gregorious77 Posted March 29, 2012 Report Share Posted March 29, 2012 If you are taking the lid off to check the clearances you may as well take the cams off while you are there and check for any broken springs. Good guide here http://www.themcdonalds.net/richard/index.php?title=ZX-6R_Maintenance:_Adjust_Valve_Clearances Its for a 2000 model but they are much the same engine. Link to comment Share on other sites More sharing options...
gurninman Posted March 31, 2012 Report Share Posted March 31, 2012 That sounds properly wanky, and not like valve clearances. Does sound like summat is brokeded - the missus' 2000 6R is in dire need of a shim job, but only really makes the normal Kawasaki-ticky noise at a tad under 57k Gegorius77 - good link, that - I have to do both the 9R and the 6R soon .I've done my 9 , but never opened up the 6 so that'll be useful Link to comment Share on other sites More sharing options...
roastdinajima Posted March 31, 2012 Report Share Posted March 31, 2012 Mine was still running with a cracked piston http://pbmagforum.co.uk/index.php?showtopic=10642&st=0 no smoke but a similar noise to yours. Link to comment Share on other sites More sharing options...
Alex_H Posted April 1, 2012 Author Report Share Posted April 1, 2012 Right lads, Cheers for your replies - I checked valve clearances and springs and the clearances where slightly out but not really enough to cause the issue, and there were no busted springs. I was supposed to wait for my mate to bring over the comp tester tommorow but I'm impatient so I thought fuck it, off with its head. So, got the head off and took this video of me being able to push down piston #3 when its on its down stroke, you can hear it clonk in the vid, I'm guessing its not supposed to: http://s432.photobucket.com/albums/qq44/Alex_H/?action=view¤t=VIDEO0009.mp4 I fear a bad news phone call coming on to the chap who owns it lol. Link to comment Share on other sites More sharing options...
Gregorious77 Posted April 1, 2012 Report Share Posted April 1, 2012 Thats not good!! big or small end bearing I would say. If you look how expensive the full gasket set is for that engine you may aswell buy a 2nd hand engine and save the hassle! Mine makes a slight piston slap type noise (nothing like as bad as yours!)and I decided against a strip down due to cost of gaskets. I thought if it goes bang I will just get an engine, 10K miles later its still fine. Link to comment Share on other sites More sharing options...
BudgetBoy Posted April 1, 2012 Report Share Posted April 1, 2012 +1 on the 2nd hand engine. Deffo big or little end as Greg say's.You wont know until you pull it apart. Link to comment Share on other sites More sharing options...
Alex_H Posted April 1, 2012 Author Report Share Posted April 1, 2012 Big end it is. Just whipped off the barrel to have a browse and its rocking up n down like a good'n! Yeah I've had a look at the gakset kits, they're massively expensive for what they are, and I've suggested another engine but we'll see what he wants to do. It might even be getting sold as is, watch this space! Link to comment Share on other sites More sharing options...
niknakninja Posted April 9, 2012 Report Share Posted April 9, 2012 if you go down the new engine route then all the carb engines fit including the 636 have a look on kawiforum.com it a yank forum but they have a parts swapable list for all models got some great ideas for my 97 f3 Link to comment Share on other sites More sharing options...
Alex_H Posted April 28, 2012 Author Report Share Posted April 28, 2012 Well just to put a full stop on the end of this thread, we fitted another motor in the thing last night, thats done 18k, and cost £150, bargain. Fired up straight away and rides quite nicely, Cheers for all the help peeps! Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.