Cap off oil cooler outlet from water pump
#3
Like Mtrhds94Z just said, there's a bypass hose that routes from the waterpump to the bottom driver's side of the radiator. GM part number 10197675.
Any auto parts store should carry it. Just ask for the lower radiator return hose for a *non-oil cooler equipped vehicle. The hose itself is roughly 1-1/4" in diameter, so if they give you something larger, you'll know it's the wrong one. It should be relatively skinny...
Any auto parts store should carry it. Just ask for the lower radiator return hose for a *non-oil cooler equipped vehicle. The hose itself is roughly 1-1/4" in diameter, so if they give you something larger, you'll know it's the wrong one. It should be relatively skinny...
#6
When I had my waterpump out of my truck to do some work on the timing cover and install an electric waterpump I solved this problem.
I blocked off the oil cooler outlet and both heater core ports on the radiator. I popped out the outlet necks, and tapped the waterpump for pipe threads. I believe 1/2 was used for the smaller ones, and 3/4 was the larger one. Then I inserted a threaded pipe cap into the new holes I made with some RTV on the threads. No leaks since, looks pretty nice (alot better than rubber caps and a loop for the heater hoses).
I blocked off the oil cooler outlet and both heater core ports on the radiator. I popped out the outlet necks, and tapped the waterpump for pipe threads. I believe 1/2 was used for the smaller ones, and 3/4 was the larger one. Then I inserted a threaded pipe cap into the new holes I made with some RTV on the threads. No leaks since, looks pretty nice (alot better than rubber caps and a loop for the heater hoses).
#7
Originally Posted by slmdgmc
When I had my waterpump out of my truck to do some work on the timing cover and install an electric waterpump I solved this problem.
I blocked off the oil cooler outlet and both heater core ports on the radiator. I popped out the outlet necks, and tapped the waterpump for pipe threads. I believe 1/2 was used for the smaller ones, and 3/4 was the larger one. Then I inserted a threaded pipe cap into the new holes I made with some RTV on the threads. No leaks since, looks pretty nice (alot better than rubber caps and a loop for the heater hoses).
I blocked off the oil cooler outlet and both heater core ports on the radiator. I popped out the outlet necks, and tapped the waterpump for pipe threads. I believe 1/2 was used for the smaller ones, and 3/4 was the larger one. Then I inserted a threaded pipe cap into the new holes I made with some RTV on the threads. No leaks since, looks pretty nice (alot better than rubber caps and a loop for the heater hoses).
Visual water pump comparison. You can see that the bypass port is blocked on the non f-body pumps. The hose pipes are slightly different as well.
Last edited by shoebox; 07-18-2004 at 11:19 AM.
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