New7er Posted September 24, 2003 Share Posted September 24, 2003 Some advice please guys. I recently noticed when pulling hard up hills or accelerating hard, a thin wisp of smoke coming from the drivers side bonnet grills! Can smell a little oily too. Have good pressure on a xflow giving 2bar at idle and 4.5 at >3000 rpm. What do you reckon, piston rings or valve seals? Link to comment Share on other sites More sharing options...
Gary G Posted September 24, 2003 Share Posted September 24, 2003 My old x/flow did the same. Only when stationary though. I was told it was completely normal.... C7 GAR Link to comment Share on other sites More sharing options...
Leadership Team Mcalvert Posted September 24, 2003 Leadership Team Share Posted September 24, 2003 How many miles has your engine done? Mine reached the same stage at about 28K, which I believe to be fairly "normal" with Caterham Supersprint engines unfortunately. Michael. Link to comment Share on other sites More sharing options...
Slomove Posted September 25, 2003 Share Posted September 25, 2003 Sure you are not dripping some expanding coolant on the exhaust headers? I had that smoking out of the gills and smelling. Link to comment Share on other sites More sharing options...
pete east Posted September 25, 2003 Share Posted September 25, 2003 If you have got the standard cranckcase breather system feeding into a plastic catch tank fixed to the n/s footwell the `smoke' you are seeing coming up through the bonnet louvres is most likeley coming out of the catch tank breather hole. a few weeks back I posted a similar topic and Roger (King) described a first class fix which involves tapping unions into the rocker cover to carry oil fumes (and oil) back into the engine where it belongs. If you go back 2-4 weeks the posting was labelled `throwing Mobil 1 away' hope this is of use. Link to comment Share on other sites More sharing options...
Graham Sewell Posted September 25, 2003 Share Posted September 25, 2003 If you don't have the breather system - like my '95 Supersprint - you get a fine mist of oil from the filler cap. Mine has done this from new and is my way of corrosion proofing the engine bay and transmission tunnel. Low tech luddite - xflow and proud! Link to comment Share on other sites More sharing options...
wag Posted September 25, 2003 Share Posted September 25, 2003 Smoke from the bonnet gills. How do I get it? Link to comment Share on other sites More sharing options...
Sootysevener Posted September 25, 2003 Share Posted September 25, 2003 Whilst it sounds more like a breathing problem I regualrly got a fine show of fumes through the grills, usually exhaust side. Smokinnnnnnnnnn!!! I cured the problem by replacing the exhaust manifold gaskets which were just about burnt out. David Link to comment Share on other sites More sharing options...
New7er Posted September 26, 2003 Author Share Posted September 26, 2003 Thanks guys. Nothing to really worry about then and at 30k miles something to be proud of perhaps!! I have replaced the exhaust gaskets with RK copper ones - great, but still smokin! I suspect its the catch tank area so will try the fix recommended, maybe. On the other hand there is something 7evenish about that smokin......! Link to comment Share on other sites More sharing options...
Terry Field Posted September 29, 2003 Share Posted September 29, 2003 Seems odd that the smoke is coming from the drivers side. It usually comes from oil contact with the the hot exhaust. If you haven't got an engine breather on the crankcase, I would say it is oil blowing back through the head or possibly the dipstick. Terry Q783 OOR. Team Lotus colours with flares. Link to comment Share on other sites More sharing options...
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