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> Gauging value of NOS ? 914-6 heater flapper valves
bdstone914
post Feb 23 2025, 08:23 PM
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Picked up a pair of 914-6 flapper valves today that were mounting on some very good heat exchangers today. There is no rust and no sign they ever saw use on an engine.
Dansk new 914 flappers are about $140 each. They will be offered for sale along with the exchangers once I determine a fair value.
The exchangers have little metal missing around the pipes. pipes have coon deep rust pits but exhaust flanges are serviceable. Do no have pictures of them yet.

Pictures to be uploaded shortly.


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gereed75
post Feb 24 2025, 08:32 AM
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I have compared four vs six flapper valves. Besides the hole there is a slight difference in the volume of the chamber under the cap. Not sure why

I have been running four flappers with a hole that replicates the six hole for many years now. No discernible problems
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bdstone914   Gauging value of NOS ? 914-6 heater flapper valves   Feb 23 2025, 08:23 PM
Front yard mechanic   140 a pair! What a deal   Feb 23 2025, 09:54 PM
bdstone914   140 a pair! What a deal Still waiting to s...   Feb 23 2025, 10:04 PM
FlacaProductions   140 a pair! What a deal Still waiting to ...   Feb 24 2025, 08:48 AM
930cabman   140 a pair! What a deal Still waiting to ...   Feb 24 2025, 04:42 PM
Montreal914   Bruce, are there any major differences between the...   Feb 23 2025, 10:00 PM
bdstone914   Bruce, are there any major differences between th...   Feb 23 2025, 10:02 PM
Jack Standz   140 a pair! What a deal Still waiting to ...   Feb 23 2025, 10:44 PM
76-914   [quote name='bdstone914' post='3193355' date='Feb...   Feb 24 2025, 04:38 PM
Krieger   :lol4:   Feb 23 2025, 11:59 PM
mb911   No idea on value they are cool and all but it woul...   Feb 24 2025, 05:16 AM
gereed75   I have compared four vs six flapper valves. Beside...   Feb 24 2025, 08:32 AM
DennisV   Bruce, are there any major differences between th...   Feb 24 2025, 10:53 AM
rgalla9146   I'll try to do a side comparison 4 vs. 6 ...   Feb 24 2025, 04:00 PM
rgalla9146   I'll try to do a side comparison 4 vs. 6 ...   Feb 25 2025, 02:51 PM
76-914   $500 for the pair. Most 6 purists have deep p...   Feb 24 2025, 04:37 PM
ctc911ctc   As all my kids could could tell you by the time th...   Feb 24 2025, 05:28 PM
Front yard mechanic   I take it back how about 100 bucks   Feb 24 2025, 09:32 PM
bdstone914   I take it back how about 100 bucks How about y...   Feb 26 2025, 08:21 AM
L-Jet914   I found this information in the PET regarding the ...   Feb 24 2025, 11:21 PM
johnhora   Since we are talking about the 914-6 flapper boxes...   Feb 25 2025, 12:54 PM


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