Converse, do not waste your money repairing a PT when there is millions of them still out there. If in another 20 years when supply has dried up, then it might be worth your while. A straight fueled PT is going to need a rebore and O/S piston and if you can find in Melb anybody who will rebore a one off, all I can say is good luck. Only place left on my side of Melb is B&B Engines in Clayton and single cylinder rebores were costing me $100 some years ago now, then you need a new piston and rings and bearings and seal. At a guess you would be looking at about $150 all up. I guess if I took 40 bloks down to be bored I would get them at a better price because once he sets the machine up he can just fly through them, but at this stage I have no intentions of spending that sort of money on PT motors. F/Cs are ok if the rings are just worn, give it a hone and a set of rings and away you go again. Straight fueled, forget it
As for testing the motors, I have tested up to 10 a day as I have a rig that I just drop the motor on, clamped down,it has a good carby and fuel tank mounted on it. Test for spark, have spark and known fuel it should fire, if it doesn't it gets a squirt of starter fluid down the plug hole, if it makes no attempt to fire or give a burble it is a dead motor as far as I am concerned, because if it won't fire with starter fluid above the piston it has obviously been straight fueled and is scrap. They can still have compression but the will not fire. Pull the head off and the bore will always be damaged beyond economic repair
Last edited by NormK; 18/02/19 02:26 PM.