As is often the case at this time of year the amount of servicing, tuning and MoT work coming into the workshop has dropped off considerably and the amount of winter rebuild work has started to ramp up, particularly on engines. We have a fair waiting list for these at the moment with a TR4A power plant and two six cylinder 2500 units on the go. The wet liner engine is almost done and one of the six pots is going back together while the other one is coming apart.
We had special fun with the 4A unit removing the liners which after 50 years in situ really didn’t want to come out at all. After two days spent soaking them with release agent during which a pair of adapted heavy duty spring compressors were left on the first one under tension for the whole period all we had succeeded in doing was knocking a few lumps off the bottom of the liner and bending the compressors slightly!
More drastic measures were called for and an angle grinder used to cut a ‘V’ in one side of the liner before attacking it with a hammer and chisel to crack it and make it ‘relax’ inwards freeing it from the block. That done it did then knock out of the block revealing the shifting sands of time and more rust than I’ve seen in an engine for a very long time. Luckily the seats for the liner seals cleaned up OK, the block was emptied and the new liners fitted – job done!