Leak down test : Uses 70lbs pressure to test for leaks around valves and cylinders.
The most common place for oil leaks is the sump/crankcase cover gasket. A torn gasket will allow oil to escape. A common cause could be a blown head gasket putting too much pressure in the crankcase.
i have 8 hp horiz. Briggs leaking at the mail seal, flywheel side. I put a new seal on but it still leaks. I suspect too much crankcase pressure, maybe the breather is not open enough? anyone got some ideas on this? when I turned the engine by hand without the seal present, lots of air vented out the oil drain hole behind the seal. that is why I suspect high pressure. Is this normal? it runs great but leaks out the flywheel side main seal. ms
it is probably your water pump
If a 1980 Pinto c3 transmission leaks from the front, adding stop lead fluid might help. This can be obtained from retail auto part stores.
I hav e the same problem
The front transmission line leaks, how do I replace it?
Replace the front seal which is located by the spline.
heator core
If the front of the engine leaks coolant there is a blown head gasket. This requires immediate repair as it can lead to a blown engine if not managed appropriately.
Does it leak on the passenger front flooor?
Check the valve cover gasket, if not that you may have a warped head.