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Toyota Master
2,044 Answers
- Posted on Apr 06, 2013
Re: Diameter of fuel line for 1995 carolla
Are you talking the Fuel Line (Metal) or Hose (Rubber)?
Here are some facts you need to know to work with the OEM fuel
lines.
- The threaded fittings used in the fuel system are
a bit strange considering this is a Japanese vehicle. There are two fitting
sizes used: 1/8-28 BSPT (Yes the first one is a British Pipe thread!) and
13mm x 1.5. (The diameter I measured on this fitting is .504, which is larger
than a 12mm fitting (.472), but smaller than a 14mm (.532) This would logically
make it a 13mm. It it NOT a 1/4-BSPT as I had orginally thought.) There appears
to be no such thing as a 13mm compression fitting available for purchase.
If you should find a source for these, PLEASE let me know!
- The female threads on the carb inlet, glass fuel filter inlet
and outlet, and the fuel pump inlet and outlet are 1/8-28 BSPT. (So are the
intake manifold small threaded holes and the block holes for the oil pressure
sensor and oil lines. )
- There are two thread adapters (Toyota calls these Unions)
used in the Cruiser fuel line system: a straight female 1/8-28 BSPT to 13mm
x 1.5, and a 90 degrees female 1/8-28 BSPT to 13mm x 1.5. The 90 degree fitting
is only used on the fuel pump outlet to adapt the fuel pump to the hard line.
- The OEM hard fuel line is 8mm in diameter (.314"). 5/16"
(.312") is close enough in size to not matter much.
- OEM soft (rubber or the clear plastic) fuel lines are no
longer available.
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