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'71 Deluxe - Now with Super Secret Subaru Swap!
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<blockquote data-quote="DadWagens" data-source="post: 588001" data-attributes="member: 14037"><p>Thanks man I am long long looooong overdue for an update to this thread. Bus has been running great, no issues to speak of. I've made some upgrades as well but I'll just answer your question for now... the lower suction side filler tube was abandoned because I was losing coolant. In that configuration I had no overflow/expansion tank, so when the coolant got hot and expanded the pressure cap would open and dump the water on the ground. When the engine cooled it would suck air into the coolant reservoir instead of pulling coolant back in from an overflow/expansion tank. Moving the filler to the top cross over tube between the radiators makes it easier to fill, helps with bleeding air, and the addition of the overflow/expansion tank ensures that the cooling system stays full.</p><p></p><p>Any other questions, just ask!</p></blockquote><p></p>
[QUOTE="DadWagens, post: 588001, member: 14037"] Thanks man I am long long looooong overdue for an update to this thread. Bus has been running great, no issues to speak of. I've made some upgrades as well but I'll just answer your question for now... the lower suction side filler tube was abandoned because I was losing coolant. In that configuration I had no overflow/expansion tank, so when the coolant got hot and expanded the pressure cap would open and dump the water on the ground. When the engine cooled it would suck air into the coolant reservoir instead of pulling coolant back in from an overflow/expansion tank. Moving the filler to the top cross over tube between the radiators makes it easier to fill, helps with bleeding air, and the addition of the overflow/expansion tank ensures that the cooling system stays full. Any other questions, just ask! [/QUOTE]
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'71 Deluxe - Now with Super Secret Subaru Swap!
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