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Shade Tree Mechanic
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Shade Tree Mechanic
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Howdy all, I narrowed it down to coolant coming out of tail pipe on my `64 ,283". Car runs great, idles good, not missing how do I narrow it down to a head gasket or intake manifold gasket? Thanks for all your help ! PS , I tried block seal with no results.
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Joined: Jan 2002
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you need a cooling system pressure tester.
Gene Schneider
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In most cases if it is coolant liquid out the exhaust the common cause is a crack in the exhaust port of the head. If a leak (or humid intake air) on the intake side or head gasket generally shows as steam out the exhaust.
As Gene suggested pressure tester will give you a good indication though the crack may not open with a cold engine.
Tony
1938 1/2 ton Hope to drive it before I retire
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Shade Tree Mechanic
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Shade Tree Mechanic
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Thanks All, will buy cooling system pressure tester
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You can borrow one from your local auto parts store such as O’Reilly’s, AutoZone, and Advance.
Rusty
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Just a thought, are we sure it's coolant instead of plain old condensation?
VCCA Member 43216
Save a life, adopt a senior shelter pet.
1938 HB Business Coupe
1953 210 Sedan
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Joined: Jan 2002
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I still suspect tha he has a muffler full of condensation and a good 10 mile of driving will blow it out.
Gene Schneider
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Shade Tree Mechanic
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Thanks all, drove around, then out down for 5 minutes & coolant (green) came out tailpipe, did a couple series of run then shut down & every time I started motor up green coolant spit out, funny tho, the car runs great.
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It'll run great until the Coolant hits the Top of the Hot Piston!
Jon T.
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I would be looking at the plug. One of them will look very different, maybe very clean looking. Then you may see signs of coolant leaking from the exhaust to head junction.
My 1951 1 Ton is now on the road! My 38 Master 4 Door is also now on the road .
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If what is coming out of the tail pipe is water it will evaporate quickly. If coolant and it contans antifreeze it will evaporate in hours if at all.
Gene Schneider
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If 1 spark plug is different color to the rest it generally indicates water entering the combustion process. When all plugs look the same and there is a large amount of coolant at the tail end I would be suspecting the head is cracked into the exhaust port. I have heard it can be fixed but never seen a repair last very long.
You will probably notice the radiator level dropping as well.
Tony
1938 1/2 ton Hope to drive it before I retire
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