The BSA A7-A10 Forum

Technical => A7 & A10 Engine => Topic started by: kbret on 01.12. 2014 17:41

Title: Noise from exhaust
Post by: kbret on 01.12. 2014 17:41
My A7 is running fine but I can hear a noise from the exhaust which maybe ok but I would like your opinon. I was going to remove the head and have a look but though I'd ask first. The noise sounds like valve clatter. The engine had only just been started so it's condensation coming out of the exhausts.

Title: Re: Noise from exhaust
Post by: muskrat on 01.12. 2014 18:59
G'day kbret.
So you hear it right from cold start up, does it get worse or better when hot? The left pipe is a little darker than the right, what do the plugs look like? Check the tappets gain and look for a broken spring (alloy heads are noisy). Drop the pipe off and have a look up the ex port. Is there moisture where the guide exits the head?
Cheers
Title: Re: Noise from exhaust
Post by: kbret on 02.12. 2014 00:05
Thanks Muskrat for you helpful comments.


Keith