66 coolant leak

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Old Dec 10, 2010 | 12:09 PM
  #1  
ithaca4me's Avatar
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66 coolant leak

Well I pulled it out today to put the sta-bil in it and found antifreeze on the ground. It is coming from the right rear of the engine. The heater core is bypassed so it just goes straight back in the manifold there. There is no water in the oil my assumption is the intake manifold gasket is leaking out the rear (thank goodness) but just asking if anyone has seen this on there 330 I am not pleased but easy fix if that is what it is. If you guys confirm my theory I will just go through and change all the gaskets I can get to in the spring. Hopefully you guys won't say it is a head gasket. Any way she starts and sets and prrrrs like a kitten. Thanks in advance for the help.
Old Dec 10, 2010 | 12:14 PM
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Lady72nRob71's Avatar
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If it is not leaking from the heater valve connection (where you have your bypass hose going to, then it would prolly be coming from a bad intake manifold gasket.
Check the freeze plugs, too, to make sure one of them is not weeping and coolant is running down something else.
Old Dec 10, 2010 | 12:19 PM
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ithaca4me's Avatar
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Thanks for the quick reply I can see jus a liitle bit laying on the back of block just below the heater hase connection and the seam looks a little wet unfortunantly I rubbed my finger around the hose connection and it was dry. (could'nt be a loose clamp). I will check the freeze plugs also.
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