My noises have returned

[boobles]

Since having my HGF repaired approx 2 months ago on my 2000 S1, my "pinking" sort of noise has returned which is slightly concerning me now. I can be doing any speed in any gear & the moment i floor it this "pinking" sound comes & dissapears after approx 2 secs. I can slow down again & floor it again & it does it again. Lotus told me that it was "igniting" but what the hell does this mean please?

Edited by boobles on Wednesday 8th August 19:56

[jondude]

The cheaper things you can check yourself are the plugs - are they the correct grad and gapped 100% properly?

Check your HT leads with a multimeter. Are they are A1?

Then consider changing to a different type of petrol, preferably the high octane stuff, BP Super/Optimax ( Vmax?? ) or Tesco Super.

Honestly, all the above ( especially bad fuel ) can cause it.

( I may be getting confused here but a new HG can mean skimming and therefore changing the compression ration in the engine, which means a top quality and high octane fuel can be a must. Or maybe that is a rebore only???)

[boobles]

I had the plugs etc checked with no faults.
tried high octaine fuel & this didnt stop it.
Seems odd how it dissapeared once the HG was repaired, but now returned. A work colleague who is also a rally driver claimed that "pinking" is an obvious sign of HGF.
Im in no way suggesting that this is what it is again, but just seem odd.

[boobles]

Im going to get the car serviced with plug change, leads, and all other components necassary to eliminate any of that.

[bighorn1]

whats the latest boobies?

Edited by bighorn1 on Sunday 19th August 23:19

[boobles]

I had Sportomotive take alook last week & they had suggested that maybe i had picked up some dodgy fuel because i had tried this V Power stuff from Shell 2 weeks ago & it hasnt "pinked" ever since & they couldnt find anything wrong apart from it was slightly low on oil but in no way was this causing it to "pink" apparently. I will continue to use this V Power & see what happens.