Is This Normal

Aristos · newbie Joined: 09 Oct 2001 Posts: 3

hey peoples i need some help. When I start my gemi of a morning it blows out all this black shit and it marks the driveway or the street.The guy at the servo told me that this is normal for gemis but i dont know. The car's got 2 1/2 sports exhaust going through into a dump.Please someone tell me if this is normal and if not what can i do to fix the problem. thanks heaps.
p.s the website's awesome keep up the good work.

TXcoupe · petrol head Joined: 05 Oct 2001 Posts: 1675

tiss just blowing carbon out the back....

Aristos · newbie Joined: 09 Oct 2001 Posts: 3

so its alright then

TX III · petrol head Joined: 04 Oct 2001 Posts: 1042

the bloke at the servo was right mate, it's normal for a gemini.... every gem i know or have owned has puffed the black cheese when its cold.....
you've got nothing to worry about....

Aristos · newbie Joined: 09 Oct 2001 Posts: 3

great,thanks for the help i appreciate it

Ben Wight · backyard mechanic Joined: 04 Oct 2001 Posts: 946

I think the water buildup (what your exhasut actually spits out) is caused from cold night air condensing in your hot exhasut pipe. The reason it comes out black might be becasue you are running slightly rich.

Adam · Site Admin Joined: 04 Oct 2001 Posts: 682

Mine doesn't... although that probably has more to do with the fact the choke doesn't work.

JFK · tinkerer Joined: 05 Oct 2001 Posts: 159

u can get rid of the carbon off the tops of ur pistons by dripping water through your carby whilst holding it at revs but if u pore ity inh you are like to bend a rod so u have to drip it in and it will tear it off

TX III · petrol head Joined: 04 Oct 2001 Posts: 1042

not game enough to do that!!!!

maybe coz of running a bit rich down low for too long?
i had my car dyno'd and the air/fuel thing said it was running rich on idle, then as you put the foot down it leans out a bit... that could be the reason for the carbon build up...
but hey, most gemi's do run rich on idle....

IDAREU2 · tinkerer Joined: 07 Oct 2001 Posts: 423

I found my car did it when I changed to unleaded fuel and no its not a problem

Dave · tinkerer Joined: 04 Oct 2001 Posts: 322

Basically, it's soot (carbon) mixed with moisture that's made it's way up the exhaust pipe over night.

You'll probably find it doesn't do it in summer, and that if you left the car for 10 years without starting it, the moisture would rust your exhaust out.

So starting it up and blowing out the moisture is good! It just takes some crap with it. Also good!

So it's good it does that!

By the way, my panelvan has a side-pipe, so mine spits the soot onto the car next to me - hooray!

Gemmy · backyard mechanic Joined: 06 Oct 2001 Posts: 533

hmmmmmm the side pipe sounds like a good idea .. i reckon black shit would look good on the naighbours hotted up yellow laser !
yahhhhhhh

Dave · tinkerer Joined: 04 Oct 2001 Posts: 322

Sidepipes are only legal on commercial vehicles, so your Gemini had better be a van or the Johnnies might not like it and try to issue you with a canary.

Which would suck. But I haven't been pulled over about it yet, and I've had it over 6 months. It's not that loud, but, because it does have a muffler on it.

Mystikal · newbie Joined: 17 Jun 2003 Posts: 8

how bad is the smoke cause i do have an 2 and a quarter system u need to adjust your air to fule mixture that will fix it if its black it tells that too much petrol is burining but on my gemini it runs on unleded so i would think its different to super