a leak

1965-1971 Datsun 521 forums. All 520 and 521 topics and discussion can be found here.
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acdatsun
Posts: 6
Joined: Wed Dec 31, 1969 5:00 pm

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1971 pl521 350,000 miles original engine, running, one bad valve, and found oil (frothy) in radiator but no water in the oil pan, has not be overheated does anyone have an idea of were the leak could be abe

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Charlie69
Posts: 256
Joined: Sat Nov 08, 2008 6:01 pm
Car: 1966 Datsun 520
Location: Tolleson AZ

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It is probably the head gasket
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acdatsun
Posts: 6
Joined: Wed Dec 31, 1969 5:00 pm

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thanks, one of my friends also suggested the manifold intake, so if it is not a simple fix, with that many miles it is rebuild time
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