Reply To: Engine overheating

Paul,

Yes, it could be timing but I wonder to what extent was the engine overhauled?

Were the liners removed and the block cleaned out?  It is very common for these engines to silt up and, when an engine has stood for a long time the deposits can solidify like concrete.  This will considerably reduce the effective volume of the waterjacket as well as hindering coolant flow.  Try removing the drain plug on the left of the block.  If coolant does not flow very freely there is almost certainly a build up of silt in the block.

Were the waterways in the head checked?  Inside the head there is (or should be) a steel tube designed to direct coolant flow over specific hot spots.  When the tube corrodes it can become blocked and the head will overheat as a result.  Replacement tubes are available but, personally, I found the engine of my Légėre ran very well, at even the highest ambient temperature, without the tube at all.

B…….