What finally worked for me was to warm up the engine, take out the drain plug, take off the thermostat, get an air hose with one of those small conical rubber ends on it so you can get a good seal in the drain plug hole and give a good blast of air into the block alternating the thermostat opening and the drain plug until it breaks loose. Kind of rocking the crud plug. Get it flowing, then use the Muriatic acid to clean things out.
Allen
Yeah, well, that's just like, you know , your opinion, man - The Dude
1948 Chevy 3600 - goal Original restoration, Current Stage 1 - Disassembly and getting body in primer
1954 GMC 3100 goal Hot Rod, Current Stage 1 - Get body in primer
1931 Ford Model A 5 window Coupe - Old Skool Hot Rod
1945 Ford 2N Tractor - Runs great
1964 Ford 2000 Tractor - Use it every week
1974 Stingray Corvette
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