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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » my motors pinking and its doing my nut in! » Post Reply
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corsa356 |
posted on 29th Jun 04 at 13:06 |
i had the same problem with my corsa (different engine 1.2i 8v) it pinked like f**k up hills and stuff like that. adjusted the valve timing and ignition timing and it worked a treat. Then i changed the octane sensor around and used octane booster and high octane fuel and its great now!:thumbs: | |
nassau |
posted on 28th Jun 04 at 21:27 |
first of all to clear up a few points, the c14se does not have a knock sensor and you can adjust the timing slightly by changing the RON plug. thats the brown plug up top left of the engine bay, one side is marked 95 the other 98 and you flick it round depending on the fuel you are using. there are other colour plugs as well, yellow and red that vary the timing ever so slightly to compensate for 91 too but mostly your stuck with the control from the ecu. | |
vibrio |
posted on 27th Jun 04 at 11:14 |
it's probably down to the car being in the wrong gear. pinking usually only occurs high up the rev range. is the car serviced properly? | |
Gavin |
posted on 26th Jun 04 at 17:09 |
my car pinks! | |
A_Venables |
posted on 26th Jun 04 at 16:11 |
Havent got an answer for why, I tryed 2 or 3 sets of the suposed right NGK plug with the correct gap for the engine but it still would only run like a dog on 1,2 maybe 3 cylinders! The GM plugs give me no hassle so I'm goin to stick with them:boggle: | |
Cybermonkey |
posted on 23rd Jun 04 at 23:59 |
Vauxhall only use twin sparks inall their cars during services, and they are bosch twin electrodes with a GM stamp on them. There is no reason why NGK plugs wound not work in any corsa engine, since the plug gaps are universal to the plug number. Bosch Super4's work well in the old 8v units. | |
A_Venables |
posted on 21st Jun 04 at 22:38 |
if you still have problems put the car on a rolling road, they should be able to tell you for shore if its pinking or worn? | |
A_Venables |
posted on 21st Jun 04 at 22:36 |
If you have a rattle at about 2,500 - 3,200 rpm then I think you probably have a worn cam, mines the same, doesnt make much difference to the performance just sounds bad. I run mine on optimax seems to make a difference with this engine, run with mine with the octane plug on 95, even when using octane booster, if you have been using the optimax and been pushing the car hard there shouldnt be much coke on the valves, the only other thing, would spark plugs make any difference, mine runs on GM, standard or GM twin spark, I tryed NGK's but the engine would not run on these for some still unknown reason, if they are non GM ones maybe worth a try? | |
matz1982 |
posted on 21st Jun 04 at 19:44 |
cheers guys but i've trird everything mentioned! i can't adjust the timing cos its distributorless. is there any way of resetting the ecu or something like that??? | |
miles |
posted on 21st Jun 04 at 14:55 |
I dont think that would cause pinking cyber, it would the other way around. | |
Cybermonkey |
posted on 21st Jun 04 at 13:42 |
if you have been using optimax, check tha your ron plug is on 98, not 95 or even 91. this wll cause pinking. | |
TRL |
posted on 21st Jun 04 at 11:47 |
You might have a carbon build-up on one or more exhaust valves. This carbon gets hot and glows when the engine is running, and can ignite the fuel before the spark plug does. | |
miles |
posted on 21st Jun 04 at 08:38 |
Isn't the ignition ecu controled from a dispack? My misses K reg Sri is. | |
L330wnz |
posted on 21st Jun 04 at 08:32 |
:lol: fookin' pinking!! Me uncles were talking bout this the other day about the good ole days in their old cars, etc... went to devon and he picked up some hot chicks and went up a steep hill and was pinking and conked out :lol: the gurls go out n walked :P | |
AndyW |
posted on 21st Jun 04 at 07:18 |
quote: :D:wave: thank you...learn something new each day | |
AdamF |
posted on 21st Jun 04 at 06:23 |
try adjusting ignition timing mate and change your spark plugs | |
Kenni |
posted on 21st Jun 04 at 00:26 |
quote: when you drive up a hill in a high gear/ when you accelerate hard...the engine makes a noise similar to shaking a bag of nails..:look:...nasty....some corsas are fitted with a knock sensor, which elimiate pinking. the C14se doesnt have a knock sensor. | |
AndyW |
posted on 21st Jun 04 at 00:03 |
how can u tell its doin this? | |
Kenni |
posted on 21st Jun 04 at 00:01 |
slap higher octane fuel in. unleaded 97ron | |
Adam-D |
posted on 20th Jun 04 at 20:30 |
pre ignition, the mixture goes "bang" before the piston reaches at the top of its cycle | |
AndyW |
posted on 20th Jun 04 at 19:56 |
wats pinking? | |
matz1982 |
posted on 20th Jun 04 at 19:37 |
i'm really desperate guys, got a 94 sri 8v mpi with the c14se lump. a couple of years ago i put a pipercross cone on but took it off after about 5 month cos i losts loads of power(sounded good tho!) a while after that i noticed it wos pinking slightly but took no notice. then last summer the head gasket went so i took 6 thou off the head and decoked the valves,etc. it helps slightly if i run it on optimax with octane booster but when i'm powering up a hill or the slightest bit load on the engine and it pinks like mad. i've also tried valve lifter lubricant with no joy and its bn on 3 different computers with no problems showing. also replaced the map sensor and throttle potentiometer and now i'm getting really desperate. please sum1 talk some sense 2 me! |