New noise...

[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

[bmcecosse]

Oil pressure of 5060 psi is slightly on the high side............

[Arthurdaily]

50 / 60

[les]

I reckon it's the vacuum/advance! ------sorry only joking.

[Arthurdaily]

lol

[bmcecosse]

Slight pinking as the engine accelerates?

[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 ...

[irmscher]

probably the chain gone slack try a Duplex set up Mathew

[bmcecosse]

Can't play the Tube....... Retard slightly - has the noise gone away?

[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!

[irmscher]

you cant really tell with the video bring it round after you have finished at the school

[Arthurdaily]

Sorted it Lee, but thank you - it was the fan clipping a pipe only!