16v kr pinking

[leeroy20vt]

this i not in a mk2  its in a raddo  but as far as im aware its the same just hope u guys dont mind me posting it here

any way engine has ported and polished head and has had new rings and a rehone all timing is correct on cam/cam belt , but when its under full load after 4000 rpm its starts pinking

has had a fuel pressure check and all was good as far as i know also metering head changed for a gooden and dizzy/ecu

had to retard dizzy timing a bit to make a little bit better

any ideas

cheers lee

[jezza16v]

Have you re-timed the ignition off the correct flywheel marker. 6 deg btdc @ idle iirc? What octane fuel are you using, should be 98 at least? Mixture could be a bit weak? If the head has been skimmed the compression ratio will be a bit higher so needs higher octane/richer mixture /retarded timing, could it be running hot?  Pinking is very bad for the valves, suggest you retard the timing until it stops while you sort out the problem. 

[leeroy20vt]

Have you re-timed the ignition off the correct flywheel marker. 6 deg btdc @ idle iirc? What octane fuel are you using, should be 98 at least? Mixture could be a bit weak? If the head has been skimmed the compression ratio will be a bit higher so needs higher octane/richer mixture /retarded timing, could it be running hot?  Pinking is very bad for the valves, suggest you retard the timing until it stops while you sort out the problem. 

cheers m8 it was set up of the rite mark at 6 deg but pinked really bad so have already retarded timing on dizzy

i have been using normal unleaded will have to fill up on super next time round i was thinking fuel mixture to i found a article that shows u how to sort ur mixture out with a multi metre will have a play

[Diamond Hell]

Get some proper management on it instead of that retarded mechanical K-jet rubbish.

Until you have some proper diagnostics on it you're going to be pretty clueless about the cause.

[Wayne]

Has the head been skimmed.

[leeroy20vt]

Get some proper management on it instead of that retarded mechanical K-jet rubbish.

Until you have some proper diagnostics on it you're going to be pretty clueless about the cause.

were can i get it diagnosed any ideas

Has the head been skimmed.

yes m8 it has

[mattkh]

this i not in a mk2  its in a raddo  cheers lee

Hi
Please put up a picture of your rado.

[VeeDubGTI16v]

is it a 1.8 or 2.0 rado? the 2.0 uses ke-jet and 1.8 uses k-jet

what fuel are you using? it needs super!

if its a 1.8 go through the setup procedure first, check the fuel pressure, ignition timing and co

im not sure whats adjustable on the 2.0, i think its all done in the ecu using the lambda

oh and ignore the broken record that is diamond hell

[VeeDubGTI16v]

oops, ignore the ke-jet bit, just read its a kr 

for a quick fix you could just back the timing off

[leeroy20vt]

oops, ignore the ke-jet bit, just read its a kr 

for a quick fix you could just back the timing off

timings been checked all spot on have backed th timing off on the dizzy but still does it if i back it off any more i will have no power

fuel pressure has been checked i have put normal unleaded init but i will be filling up with super now

any other suggestions