Ideas on my leak? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Lobo'74 · 02-26-2004, 02:34 PM

Truck has been sitting for about a month or so. I started it up , let it idle for a couple of minutes moving another car off the driveway, then drove about a mile to the gas station. Found fresh engine coolant in the "dimple" in the left front of my intake manifold, and a small line of fluid all down the left engine/intake manifold/valve cover area. No visible leak. I dried it all off and ran it for another 5 - 7 miles or so and checked it again... Still no more leak.

The engine is a '79 350 so it has the thermostat cover on top of the engine in this same area. Any chance that after sitting in the garage for a month that the gasket around the thermostat dried out and allowed the leak until it swelled up again?

No fluid in the oil so i don't think its a cracked block, but is is weird.

Any ideas?

02-26-2004, 02:34 PM	#1
Lobo'74 Registered User Join Date: Nov 2002 Location: Charlottesville, VA Posts: 404	Ideas on my leak? Truck has been sitting for about a month or so. I started it up , let it idle for a couple of minutes moving another car off the driveway, then drove about a mile to the gas station. Found fresh engine coolant in the "dimple" in the left front of my intake manifold, and a small line of fluid all down the left engine/intake manifold/valve cover area. No visible leak. I dried it all off and ran it for another 5 - 7 miles or so and checked it again... Still no more leak. The engine is a '79 350 so it has the thermostat cover on top of the engine in this same area. Any chance that after sitting in the garage for a month that the gasket around the thermostat dried out and allowed the leak until it swelled up again? No fluid in the oil so i don't think its a cracked block, but is is weird. Any ideas? __________________ "Truck" '67 small window '79 350 .030 over, LT1 "clone"



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