AJS model 8 engine ratlle

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mervin
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AJS model 8 engine ratlle

Unread post by mervin » Sat Sep 20, 2014 7:56 pm

a guy on the Rd forum has this model 8 and has asked opinions on the rattle in the engine
This is my other bike (1960 350 AJS) yes I know a 4 stroke!! it has developed an engine knock and I would appreciate it if anyone would like to give their opinion. Take no notice of the camera angle, I mounted it right in front of the engine to pick up the noise so wasn't worried about the picture. thanks

[yt]https://www.youtube.com/watch?v=DCmD0N15Vfk[/yt]

https://www.youtube.com/watch?v=DCmD0N15Vfk
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supersix
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Joined: Wed Feb 18, 2009 9:23 am
Location: wigan and sometimes Scunny or Louth, Lincs

Re: AJS model 8 engine ratlle

Unread post by supersix » Sat Sep 20, 2014 11:33 pm

I'd not be riding it without investigating that! Have big end bolts slackened off?

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mervin
Posts: 2849
Joined: Mon Apr 27, 2009 1:06 pm
Location: the dark side of dartmoor

Re: AJS model 8 engine ratlle

Unread post by mervin » Sun Sep 21, 2014 9:25 am

Cheers will pass that on . he will be along here in a while i reckon , he did not know this forum existed , he said he was signing up .
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supersix
Posts: 1816
Joined: Wed Feb 18, 2009 9:23 am
Location: wigan and sometimes Scunny or Louth, Lincs

Re: AJS model 8 engine ratlle

Unread post by supersix » Sun Sep 21, 2014 10:02 am

I've sent the Youtube link to a mate who has a Matchless. I'm hoping he will take the bait and find his way here too! :D

Ozmadman
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Re: AJS model 8 engine ratlle

Unread post by Ozmadman » Sun Sep 21, 2014 11:31 am

supersix wrote:I'd not be riding it without investigating that! Have big end bolts slackened off?
Hi, thanks... It is a roller bearing crank on this bike with the crank pin pressed into the flywheel halves and then bolted up. Then the mains are two bearings on the drive side and a bush, would you believe, on the timing side. Hoping that it may just be the small end bush as a bottom end repair is an expensive job, the big end bearing alone is about £250 without the specialised job of pressing it all back together

Paul
Paul

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