Smoking Engine
Turbo Mini Forums

Dudes, ive fitted a new BDD needle to my tangerine but its smokes like a bitch, ive leaned it off until bearly runs. Ive had the head off, all looks fine, head is sutty as feck.

Bores are lovely no damage at all, so is hg.

Could my Choke seals be causing this problem.

It doesnt smoke at idle but when you rev it a little and when its on boost it seems to clear??

Ta

Mike

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

what colour .does it smell like fuel or oil,?

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Is this a new motor? How many miles on it?

ooh loads at leasstttttt ....1

It reaks like fumes, as in burnt petrol.

Ive seen an old 1100 engine burn oil and its not like that.

Its greyish in colour.

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

Over rich and too much idling and messing about? Probably with a proper run and clear out will be OK?

Yeah, thats what i was thinking, I might rebuild the carb to be safe. At least i know the Bores ect are ok.

However i have done alot of pissing about setting it up.........................................and revving it up for my mates to show them how brill i am for building such a masterpiece!

Edited by MikeRace on 20th Jan, 2009.

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

be carefull not to wash the bores mike, or they will glaze up, and it'll be glazebust time all over again.

it needs a run,

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agree with carl, stop running it not under load- either get it on the road loaded up or run it on the rollers.

What do glazed bores look like? And what problems do they cause.

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

Hard to see, but basically stops the rings ever bedding in properly.

Cool. Is this easily removed with the head off and pistons in situe?? Perhaps putting the pistons to the bottom them stuffing rags down the bore then a quick hone with a drill hone??

Edited by MikeRace on 21st Jan, 2009.

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

nope it is pistons out job Mike if you put the pistons to the bottom of the bore how are you going to bust the glaze where the rings of the piston that you just put to BDC. A way I run engines in that are not in a car that is ready to travel is to jack the front and put it on some very firm axel stands. Put the engine into 4th gear and bring the revs up start applying the brake and slowly depress the throttle to keep the rpm around 2000rpm, when you are at about half throttle let your foot of the brake gently and give the brakes about 5 mins to cool and repeat the process it wont harm the brakes as long as you never keep them on for more than 10-15 seconds I normally do this for about 10 pulls and it just starts the bedding process also a good way of setting your fuelling under load, with out a set of rollers.
regards,
Paul.

Has it done enough miles to get in on the rollers to set it up proporly?

Nah not really, its ok once it out on the road and under load. Paul i might give this process a whiril.

Ill take the wheels off too just icase the stand fail lol.

But would the choke seals cause over fuelling???

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

I would say you will be fine mike might nock a few miles off the overall life but cant see any major short time problams.

Wheels off very good idea.

As far as ckoke seals go I would recon this would cause it to lead rather than richen but I am far from an expert on SU, Most of the time the confuze me.

OK thanks for the input fellas. I think im flapping over nowt really. Ill build the head backup and do the wheels off bedding in process.

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

Hi,
Choke seals will cause massive over fuelling.
Was it ok before you changed the needle? What was the needle that came out?
Cheers,
Gavin :)

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It smoked before the needle too. The one before was a BDK, which i thought was the cause of the issue. Evidently not.
So you think a rebuild of the carb will do??

My Valves are coated in a layer of black carbon!

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

get it on the rollers to get the needle customised, but make sure ign is spot on first as this will cause black plugs if you have a crap spark.

always looking for them bigger bunches of bannanas

Mike, do you know the history of the carb? If not, may as well rebuild it. Only £50 and worth it for the peace of mind.

If the fuelling is in anyway out do not toss around as mentioned early YOU WILL GLAZE THE BORES you have been warned - get it to a rolling road

On 5th Sep, 2011 Vegard said:
I stand corrected. You should know

I dont know the history really, im gunna rebuild it to be on the safe side.

Also as soon as its Motd its going to the Rollers.

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/