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#492307 - 03/05/08 06:35 PM
Coolant Overflow
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k_helsby
New Member
Registered: 02/17/08
Posts: 4
Loc: New Jersey
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When I went to add coolant to an empty overflow tank in my 70 Cutlass (Rocket 350), I noticed two things. First, the lines are marked Add (bottom line) and Full (top line). To what level do I add fluid when the engine is cold. Second, what is the second hose coming from the top of the coolant overflow tank? It's not attached to anything, nor is it long enough to ever have been attached to anything. Is it a vent - should I be concerned? Thanks. - Ken
Edited by k_helsby (03/05/08 06:36 PM)
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#492348 - 03/05/08 09:28 PM
Re: Coolant Overflow
[Re: k_helsby]
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joe_padavano
Member
Registered: 08/21/06
Posts: 308
Loc: Northern VA
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When I went to add coolant to an empty overflow tank in my 70 Cutlass (Rocket 350), I noticed two things. First, the lines are marked Add (bottom line) and Full (top line). To what level do I add fluid when the engine is cold. Second, what is the second hose coming from the top of the coolant overflow tank? It's not attached to anything, nor is it long enough to ever have been attached to anything. Is it a vent - should I be concerned? Thanks. - Ken
I don't think a coolant overflow tank was factory offered in 1970, but even it it's aftermarket, when cold the level should be above the ADD line. The FULL line should be the hot level. The second line is the overflow for the overflow. It should be directed down under the car in the unlikely event that the overflow tank becomes overly full.
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Joe Padavano
OCA Capital City Rockets chapter
64 Jetstar 88
66 442 conv
68 W-30
69 H/O
69 442
70 W-30
72 442
86 Caprice wagon (w/307 Olds)
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#492363 - 03/05/08 10:34 PM
Re: Coolant Overflow
[Re: joe_padavano]
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k_helsby
New Member
Registered: 02/17/08
Posts: 4
Loc: New Jersey
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Thanks Joe - got the answer I needed. Ken
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