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rattling on tickover

Posted: Fri Apr 13, 2018 7:37 am
by yozzer
hi all, I have just built a gt 240 with all new everything, it runs fine and i've had it dyno'd and is all set up fine but I have a annoying rattle on tickover, a few revs and it goes, sounds like piston slap but everything is new, anyone any ideas..
thanks in advance

Re: rattling on tickover

Posted: Fri Apr 13, 2018 7:53 am
by Daggs
Toolbox door lock !

Re: rattling on tickover

Posted: Fri Apr 13, 2018 8:36 am
by yozzer
Daggs wrote: Fri Apr 13, 2018 7:53 am Toolbox door lock !
if only, I've checked all the usual rattle places but is definitely coming from the top end of engine

Re: rattling on tickover

Posted: Fri Apr 13, 2018 8:48 am
by GeorgeS
Here's a recording of my 1st start on my GT240, I get a bit of a rattle as the revs come down (around 1 minute in you'll perhaps hear it), is it like that? 1 year on it hasn't changed & no problems so far.

https://www.youtube.com/watch?v=X5wNCAHaeV4&t=74s

Re: rattling on tickover

Posted: Fri Apr 13, 2018 8:59 am
by yozzer
GeorgeS wrote: Fri Apr 13, 2018 8:48 am Here's a recording of my 1st start on my GT240, I get a bit of a rattle as the revs come down (around 1 minute in you'll perhaps hear it), is it like that? 1 year on it hasn't changed & no problems so far.

https://www.youtube.com/watch?v=X5wNCAHaeV4&t=74s
yours sounds more like the kickstart piston touching the starter gear, how many miles have you done ?
mine only does it on tick over, I've not done hardly any mile yet but hope it will get better the more it is run in

Re: rattling on tickover

Posted: Fri Apr 13, 2018 9:10 am
by GeorgeS
It's definitely not the kickstart, probably over 1,000 miles on it now.

Re: rattling on tickover

Posted: Fri Apr 13, 2018 11:59 am
by yozzer
run in now then lol

Re: rattling on tickover

Posted: Fri Apr 13, 2018 1:22 pm
by garry inglis
Cowling rattle or 13mm nut come loose catching exhaust or rear boards touching under bridge peice

Re: rattling on tickover

Posted: Fri Apr 13, 2018 1:50 pm
by Doom Patrol
I'm afraid you'll have to completely rebuild it.

Re: rattling on tickover

Posted: Fri Apr 13, 2018 2:56 pm
by drunkmunkey6969
Doom Patrol wrote:I'm afraid you'll have to completely rebuild it.
Lol Image