'60.. weird coolant leak??
#1
Le Mans Master
Thread Starter
'60.. weird coolant leak??
I dorve my '60 about 100 miles last weekend and it has a coolant leak that I can't see. It got a little splashed on the hood, some on the motor mount.
I tried a pressure tester and it held 13lbs pressure without any leaks for 5 minutes.
Could the water pump be barely drooling?? Rotten gasket? This leak isn't much, but its making a mess.
I tried a pressure tester and it held 13lbs pressure without any leaks for 5 minutes.
Could the water pump be barely drooling?? Rotten gasket? This leak isn't much, but its making a mess.
#3
Race Director
I had a small leak come from the steel plate that covers the impeller. Happened after a well-known pump restorer rebuilt it. I installed it without checking the bolts on the plate. Sure enough, just a little drip-drip. Had to take the pump off and found one bolt barely snug. Tightened it up and no more leak.
#4
Tech Contributor
I had a small leak come from the steel plate that covers the impeller. Happened after a well-known pump restorer rebuilt it. I installed it without checking the bolts on the plate. Sure enough, just a little drip-drip. Had to take the pump off and found one bolt barely snug. Tightened it up and no more leak.
#5
Safety Car
I dorve my '60 about 100 miles last weekend and it has a coolant leak that I can't see. It got a little splashed on the hood, some on the motor mount.
I tried a pressure tester and it held 13lbs pressure without any leaks for 5 minutes.
Could the water pump be barely drooling?? Rotten gasket? This leak isn't much, but its making a mess.
I tried a pressure tester and it held 13lbs pressure without any leaks for 5 minutes.
Could the water pump be barely drooling?? Rotten gasket? This leak isn't much, but its making a mess.
Loosen the belt(s) and give the pump shaft a wiggle. Any felt play would indicate the leak source.
Years ago our circle track car would leak all week in the garage and on race night, once it got warmed up, would not leak all evening. Pump shaft was loose but it never threw a belt (captured) so we left it alone.
#6
Safety Car
I would begin by tightening the the pump mounting bolts. My best bet if all the hose connections are secure, could be leaking at the front plate gaskets when the engine is at temp and moves. You may have to drop the pump and change the gaskets and possibly even the plate if it's corroded, just tightening may be enough though.
Good luck,
Paul
Good luck,
Paul
#9
Safety Car
Yup, I'd bet it's leaking from the gaskets at the plate. When it's good and hot, take it for a drive and give it a few good shots to get the motor to torque against the plate, you'll probably find your leak(s).
Paul
Paul
Last edited by Fawndeuce; 07-17-2009 at 08:33 AM.