Join Date: Aug 2005
Location: Newcastle Australia
flush coolant before storing an engine
I Recently purchased 3lt Milano engine that had been shipped to Australia from America 15 yrs ago and stored it had not moved until I bought it. I pulled the plugs and sprayed some WD down the cylinders then some light oil and did a compression test 210-220 psi on all cylinders....good. checking the rest of the engine I noticed the water pump was seized so more WD into the thermostat housing the pump did not budge some more WD waited an hour and it still would not turn so I removed the pump. The pump cavity was full of rusty crap. I then poured a jug of water into the heater outlet a the back of the head it came out the drain plugs rusty I then pushed a piece of cloth into the block with a screw driver it came out rusty and gritty so I removed the left side head to find a combination of rusty thick mud at the lower section of the block and thick dried coolant crystals at the top. There is a small amount of corrosion in the water pump cavity but it should be OK, The block and liners are also OK. If I had not removed the head and cleaned out the rusty and gritty sludge I'm sure it would have destroyed every water pump I put on the engine so a hint for engine storage leave the sump full of oil then drain and flush the waterjackets
Glen 3.0 GTV6 2.0 156 JTS
EX 1.2 Alfasud. 1.8 and 2.0 Alfetta's 2.5 Alfa75
Last edited by sportiva; 03-05-2016 at 05:45 AM.