| bgalla | -- 01-06-2016 @ 8:55 PM |
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I'm restoring a 36 and the new radiator hoses leak around the connection despite full scr*w*ng down of the hose clamps. I increased the diameter of the radiator connections slightly with some electric friction tape and this stopped the leaks. I worry about this holding up with the heat of the engine, however. Any suggestions on how to handle this problem? Thanks
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| carcrazy | -- 01-06-2016 @ 10:16 PM |
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You could apply some Permatex #2 to the pipes then slide the hoses onto them and tighten the clamps. You might find that the modern type of hose clamps apply pressure more uniformly around the diameter of the hose and provide a better seal.
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| TomO | -- 01-07-2016 @ 7:22 AM |
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I would remove the tape, it will just make a gooey mess as it gets older. Clean the connecting surfaces on both the radiator and the block and water pumps. Check the diameter of the radiator connections for a 1 3/4" size and that the hose ID is the same. If everything is OK, your hoses may be too stiff for the reproduction hose clamp and you will have to go to the new style clamps until the hose seals. I would give the new style clamps at least a couple of thousand miles to seal the hoses, the change to the reproduction clamps without removing the hoses. Tom
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| camsaure | -- 01-08-2016 @ 11:06 AM |
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I assume you mean the connections on the radiator? If so a couple more thoughts: Make sure they are nice and round with no dings, some kind of mandrel or maybe an exhaust pipe expander used carefully may work?? also maybe the bead around them could be expanded a bit more. Most aviation shops or mechanics have a small hand tool made by Parker, that should be able to be used while on the car. This tool is for forming just such a bead on tubing for hose connections.
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