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#1
04-10-2011, 09:42 PM
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On a NPT fitting the size is the ID of the fitting not the exterior so the bore will be 1/4 " on a 1/4" npt fitting and the leading edge of the threads are around 3/8 in Outside diameter , on fluid carriers the size is suposed to be the interior bore measurement not the exterior size
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#2
04-10-2011, 10:41 PM
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Also remember, as Tom stated, NPT threads are tapered. So, don`t go hog wild on tightening as the fitting gets "bigger" the more you tighten. You can split the bore if you are careless.
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#3
04-11-2011, 12:41 PM
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"Also remember, as Tom stated, NPT threads are tapered. So, don`t go hog wild on tightening as the fitting gets "bigger" the more you tighten. You can split the bore if you are careless."
And if you are tapping a hole make sure you don't go bigger than the actual fitting to seal!
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune [email protected] 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs 1964 Corvette Coupe 327 4 speed |
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#4
04-11-2011, 06:31 PM
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Thanks Guys I ordered the parts this morning im confident that I ordered are right, Skip Fix Id like to buy you that drink now
 you were the first to point me in the direction i needed to go . Dont understand why i didnt see it that way when i started.
__________________
Gentlemen put your trust in God, But mind to keep your Powder dry. Oliver Cromwell Michael Hughes Sr 1966 GTO Convertable: Stolen never recovered 1966 GTO Hard Top .30 over 455 4-Speed 3:23 Posi |
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