whats wrong

[gavmc18]

my nova gsi sounds like it is mis firing slightly i have changed the spark plugs what else could it be

[adam-s]

Leads
Distributor cap
rotor arm
plug gaps
water in distibutor/leads

[Dicko]

hole in vaccum pipes (the thin pipes at the back)

[mikeoxford]

hole in vaccum pipes (the thin pipes at the back)

or even loose - missing pipes if theyve come off

[gavmc18]

thanks for all that ill check it all

[Paracidium]

I had exactly the same problem yesterday, tho it was terrible misfiring, totally outta the blue :? i changed the leads and cleaned the heat sheilds and spark plugs, it has got better but aint perfect, does anyone know where i kan get cheaper heat sheilds from cos gm want 8.00 a piece,
also i need an expansion tank if anyones got one?
matt

[Dicko]

its all this hot weather!!

try just novas i got a newish looking 1 for ?5

there ?20 from vuax

[Aragorn]

cleaned what heat shields?

the one on the zorst manifodl?

why would it deing dirty affect the car :|

[Paracidium]

wil do, the other thing, 'bout the distributor cap, is it that hard to get it off, cos in the haynes manual it sais about puttin the car in first gear and rolling it forward till you hear a click or some crap, any ideas? btw cheers for the alloys dicko, i got em cleaned up gonna get new tyres on the weekend, matt

[Dicko]

think he ment on the spark plug covers.

what engine is in that mate?

no problem with alloys, did u get home ok?

[Paracidium]

yeah got home fine in jus over an hour, its only a 1.2 engine :? cant afford insurance on anything else, good thing is its only done 38k, sum1 told me to change the copper bushes in the distributor to alsp prevent the car from misfiring, it isnt to bad but i can tell theree a problem just after the biting point, what do you think is worth changing?

[Paracidium]

yer i meant the heat sheilds that extend the terminal on the spark plugs to stop the ht leads from melting. anyways, any ideas on what else to change/do?

[Dicko]

1.2 carb or 1.2i?

mine did this once and it was the dizzy module, however seen as its not freezing cold which usualy cuases it i dunno.

sounded ok to me last night, except the serious revving to get of my driveway :P

[Paracidium]

heh, im not used to driveways like that, kinda tight and on a slope :roll: anyways its a 1.2 carb, i got some new spark plugs today cos the others werent great, bloke at vauxhall said it could be the dizzy, ill see neway, matt