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New noise...

Posted: Wed May 08, 2013 8:15 pm
by Arthurdaily
Whilst messing with my vacuum advance, I noticed that my engine makes a sort of... rattle noise sometimes, not when revved steadily or anything, or at idle, but just when starting to rev. I can't detect where it's coming from. Oil pressure is around 5060 psi during rev, compression 160 + in each clylinder, timing generally okay I think, mixture good (brown plugs)... what could it be?

Please say the timing chain!

I have videoed it using new videographing-camera techn knowlogee.

Here is the ewe toob link:

You can hear it well from 20 seconds into clip...

http://www.youtube.com/watch?v=m0Y1N8y7 ... e=youtu.be

Re: New noise...

Posted: Wed May 08, 2013 9:53 pm
by bmcecosse
Oil pressure of 5060 psi is slightly on the high side............ :o

Re: New noise...

Posted: Wed May 08, 2013 9:56 pm
by Arthurdaily
50 / 60

Re: New noise...

Posted: Wed May 08, 2013 10:13 pm
by les
I reckon it's the vacuum/advance! ------sorry only joking. :D

Re: New noise...

Posted: Wed May 08, 2013 10:19 pm
by Arthurdaily
lol

Re: New noise...

Posted: Wed May 08, 2013 10:27 pm
by bmcecosse
Slight pinking as the engine accelerates?

Re: New noise...

Posted: Wed May 08, 2013 10:30 pm
by Arthurdaily
- is that based on the you tube clip? Just wondering if anybody else could actually see it.. Ithought you could only get pinking when driving and engine under load? I have, however, been messing with the advance ...

Re: New noise...

Posted: Wed May 08, 2013 10:46 pm
by irmscher
probably the chain gone slack try a Duplex set up Mathew

Re: New noise...

Posted: Wed May 08, 2013 10:46 pm
by bmcecosse
Can't play the Tube....... Retard slightly - has the noise gone away?

Re: New noise...

Posted: Wed May 08, 2013 10:50 pm
by Arthurdaily
Did you play the clip Lee? I will try a little retardation tomorrow and see what happens... whilst blipping the engine with the vacuum tester on. I shall then report back!

Re: New noise...

Posted: Thu May 09, 2013 11:51 pm
by irmscher
you cant really tell with the video bring it round after you have finished at the school :D

Re: New noise...

Posted: Sat May 11, 2013 9:10 pm
by Arthurdaily
Sorted it Lee, but thank you - it was the fan clipping a pipe only!