Bongo Fury

helen&tony wrote:Hi
Teenmal...
"Full Bulgarian"..........PURLEEEEESE...The Bulgarian food is appalling...quite possibly the worst on the Continent ......Baked 'tater with cheese (English Cheddar) and a little marmite wrapped in foil and wired to the top of the heat shield....mmmmm I'd say 60 kilometers at 55 MPH
Cheers
Helen

teenmal wrote:

helen&tony wrote:Hi
Most of the time the airflow is diverted up and over the engine by the angle of the under-trays, and the engine doesn't get that hot. The turbo rarely boosts over 5 or 6 PSI when driving normally, so hardly heats up. It only ever gets to 12 PSI when absolutely flooring it, which isn't particularly high boost as turbos go, and it drops off when you stop overtaking. Exhaust temperature where I have the sensor put, very rarely sees 500C, and normally runs around 250/300 plus, and the inlet elbow just before the manifold is only up to 40-50C, but often around 30 , except on a very hot day. Oil pressure is factory spec. and taking all into consideration, it shows an old engine, highly unstressed, and hardly making a fuss.
Whilst it is fair to assume that some turbo engines might give out a lot of heat, the fact that the scavenger sensor is plastic , and sat over the top of the engine, plus there are a fair number of plastic components high on the engine, it's fair to assume that the motor never gets that hot at all if everything runs properly, and the heat in the engine bay is never colossal. The scavenger fan will cut in occasionally if left parked on a very warm day (in the upper 30s/ low 40s), and only then if parked for less than 15 minutes, but after that, the effects of immediate "heat soak" die off, and the head temperature really drops off. On the odd occasion when I'd popped into a shop on a very hot day, come out, seen the scavenger fan on (plus you can feel it), the engine temperature at the head drops off within a couple of minutes, with th coolant taking a little longer, and after less than a kilometer, the scavenger fan cuts out. I used to check the sensor every year before summer, but I haven't for a couple of years, as it's so rare that it needs to come on, but I might give it a go this year...Best place to check it is with a hair dryer in situ, as that's where it needs to be!....and probably best checked after a run, so that the hair dryer is not working to heat up the surrounding area...also, use a "salon type" as they are a bit more powerful.
As for how useful the scavenger fan needs to be???...probably only rarely needed in a traffic queue in sweltering heat, so in the UK it's fair to assume that for normal use it's not going to do anything but just sit there, waiting to do what it needs to if you sit for ages in traffic on the London Orbital Car Park whilst enjoying a picnic and listening to your favourite CD for a half hour or so!
Cheers
Helen

You could do your "Full Bulgarian" there.

helen&tony wrote:Bulgarian food is appalling...

marmite