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02-23-2023, 06:50 PM | #1 |
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Join Date: May 2013
Location: Pa.
Posts: 2,174
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Coolant blew out overflow on radiator?
8BA/ flushed engine, put new antifreeze green, while idling during timing & carbs adjust it decided to blow out about a quart or so of new coolant. I have temp gauges on both banks & it wasn’t running hot, 185 right side 195 left side. After blowing out the quart+ it stopped. I let it continue running & temp stayed about the same. I’m delinquent in flushing & changing , been a few years. Engine has 4” bore Merc crank, domed pistons, 2 X 2 Holley 94, oversize valves, Mallory e-Dist. & Isky cam.
I vaguely remember a post & thread a few years ago saying if engine & radiator r over filled it should seek its own level ( I filled to about a 1/2 “ below top of rad. Tank)? While it didn’t happen a few years ago that I remember I’m Thinking that’s Probly what happened?
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Nomad |
02-23-2023, 07:33 PM | #2 |
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Re: Coolant blew out overflow on radiator?
If you look in the radiator where is the coolant in relation to the top of the cores
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02-23-2023, 08:20 PM | #3 |
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Re: Coolant blew out overflow on radiator?
After the loss, is the coolant over the top of the core? If so, It looks like it is ok
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02-23-2023, 11:19 PM | #4 | |
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Re: Coolant blew out overflow on radiator?
Quote:
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02-23-2023, 11:24 PM | #5 |
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Location: Palmer, Alaska
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Re: Coolant blew out overflow on radiator?
you probably had an air pocket when you refilled the rad. when the t-stat opened it purged the air , most likely . let the eng run until it reaches operating temp with the cap off and then top off the tank until it just covers the tubes
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02-24-2023, 01:49 AM | #6 |
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Re: Coolant blew out overflow on radiator?
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02-24-2023, 09:46 AM | #7 |
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Re: Coolant blew out overflow on radiator?
Paul & oldbugger, coolant is covering the core by about 1/2". Ken, you are right, probably at 4" the wall would be gone. Ive had many engines and vehicles in my 73 yrs and had a brainfart, 4" was on many of the SBC's i had. The 8BA is the only flathead Ford and it's been 12 years since buying it. went from memory oops! rechecked paper work and it was bored to 3 5/16".
Thx all
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Nomad |
02-24-2023, 03:49 PM | #8 |
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Re: Coolant blew out overflow on radiator?
sounds like you got it figured out.
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02-24-2023, 08:07 PM | #9 |
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Join Date: Aug 2018
Location: Sydney Nova Scotia
Posts: 126
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Re: Coolant blew out overflow on radiator?
A few years back was having a small heating issue didn't know why flushed new coolest etc. Found out some how the over flow tube was plugged about midway.i ran a piece of weed whacked line through the tube .blocked solid. Cut metal tube off and replaced with rubber. Might want to check it out
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