
A factor in having a go myself was it had been a while since I had had the head off a car engine, the last being a 1978 Morris Marina (1.7) and a 1980 VW Polo (1.0) both with burnt out valves. After some diliberation as to whether the car was worth it and could I be bothered the only solution was to replace the cylinder head gasket. This can be seen on quite a few old Puegeot TU type engines. Near this point a oil channel makes its way from the block to the head. I had suspected that the cylinder head gasket was not doing it's job for a while by virtue of a oil seepage from the front offside corner. The engine is of the TU1 type that had done 107000 miles without a gasket change to the best of my knowledge. Perhaps one or two very small bubbles at a time, but at 1000+ rpm they all add up. I suspected that gasses under compression in one of the cylinders were in fact being squeezed around/through the gasket into the water jacket like a one-way valve. To say that the cylinder head gasket had 'blown' was probably an overstatement. If the cap of the expansion bottle was undone after a couple of days of none use pressure would be heard to release with bubbles comming from the radiator linking tube. The excess pressure would not go even if the car was stood for several days. An additional symptom was excessive pressure in the coolent system, it was this that was pushing the water down in the radiator thereby triggering the low coolent level switch. I thought I haven't seen that before (in this car) but I'll just top the coolent up and bleed the system - or so I thought! It soon became apparent that after this symptom had repeated itself at ever regular intervals that the cylinder head gasket was dodgy. One day, whilst driving home from work I noticed that the coolent level indicator on the dash suddenly flickered on then illuminated permentenly. This can be done manually at least twice each day or this turning is performed automatically if the incubator is supplied with the optional Autoturn Cradle which turns the eggs hourly. Eggs are turned during incubation as the whole incubator is rocked from side to side – hence the Octagonal cabinet ends. Eggs from as small as finches to as large as geese can be incubated and a guide to the numbers of a range of popular species which will fit is give in the specification table. To accommodate eggs of different sizes the Octagon 20 Eco's removable egg tray is supplied with dividers which the user can position to suit their eggs and so maximise the number of eggs that can be held. The top of the incubator is clear allowing good visibility of the eggs and chicks. The base is double skinned and foam filled to reduce heat loss leading to lower electricity consumption and better temperature distribution. The high quality incubator cabinet is entirely injection moulded from high grade ABS which makes it tough and easy to clean.
