smokin

[Scubie]

:confused:can anyone help with this? if i've bin cruising at about 50/60mph for a while then floor it. when it kicks down i sometimes get a cloud of black smoke come out :eek: . someone told me that this is prob just un-burnt fuel. after that it dont smoke when booted just after cruisin.. it's a jap auto 92tt. i think standard. i no cruisin sound boring but it's nearlly as nice as thraping it

[Guest Jeff TT]

Scubie, Although smoke of any colour can be worrying from what you say it is very likely you have a fuel mixture problem this can be the result of several causes, but in the main look at your service level i.e.. air filters, plugs etc but I would not discount air/ boost leak(s) The very nature of air leaks means they can change with any given condition, heat, air pressure, boost level etc., an leak will mess with the mixture as unmetered air is either drawn into the engine or metered air is lost from the engine.

 

Now I went in to some detail on a previous thread last week as to why air / boost leaks should be taken very seriously when fault finding all manner of running problems and yours is no exception, sadly the post was deleted as infringed some minor point ( not disclosed ) most likely because the day has a letter D in it? sure some one here can re-explain it without it getting nuked by the mods ( hopefully) which WILL help you with the problem, failing that ( dare I say it?) mail me and will explain all.

 

Jeff TT

[Scubie]

just done plugs new apexi filter, oil. is it poss for me to do a boost leak test.i'll leave it a week to see what turn's u on here. or i'll av to mail you . thanks