NoPistons -Mazda Rx7 & Rx8 Rotary Forum - What is the Thread pitch and size on s4 fuel rails?

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- - What is the Thread pitch and size on s4 fuel rails? (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/what-thread-pitch-size-s4-fuel-rails-65706/)

rx7man629

05-09-2007 07:47 PM

as topic states. Please help. Converting to AN lines and getting rid of stock Fuel Pressure Regulator, and Pulsation Damper.

Fd3BOOST

05-10-2007 03:52 AM

Quote:

Originally Posted by rx7man629' post='871237' date='May 9 2007, 04:47 PM

as topic states. Please help. Converting to AN lines and getting rid of stock Fuel Pressure Regulator, and Pulsation Damper.

Whatever size bolt came out of the hole will be the size and most rx7 thread pitch is 1.5 or 1.0

You can get a metric thread pitch gauge at Sears or just about anywhere else.

BDC	05-14-2007 03:56 PM

All of the fittings' sizes and pitches of all of the fuel components used on my twin Walbro setup -- attached in the file. Have fun. https://www.nopistons.com/forums/pub...1047683473.gif

B

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