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cdf fuel rail internal thread size??

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Old Jan 13, 2016 | 07:50 AM
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Default cdf fuel rail internal thread size??

hi all

trying to fit a set of cdf fuel rails to my car

long story short on cylinder 3 by the turbo the fuel rail fitting when i have my 90 elbow on is touching the compressor housing so need to shorten it with a 90 that comes straight from the fuel rail as opposed to a straight reducer down to an-6 and then a 90 elbow

im trying to identify the thread in the fuel rail though and cant confirm exactly as to whether it is 3/8 bspp or 9/16 unf can anyone enlighten me?

i could mill a few mm off the end of fuel rail but clearance would still be tight and i dont want things expanding and cracking when warm so i think i tighter elbow is my best bet...or a banjo but i dont want to restrict flow in any way???

anyone else have any other recommmendations?

cheers
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Old Jan 13, 2016 | 08:02 AM
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ring and ask CDF ?
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Old Jan 13, 2016 | 08:04 AM
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when they are open i will haha

didnt know if anyone else had had the same problem!
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Old Jan 13, 2016 | 08:21 AM
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its 3/8 bspp for anyone interested iv just worked it out and confirmed it

looks like i will have to mill the fuel rail though/take a chunk out of the compressor housing because as far as i can tell you cannot buy a 3/8bspp 90 an-6 fitting in alloy or make any combo of it up in forged fittiings!
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Old Jan 13, 2016 | 08:39 AM
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Why not use a banjo connection with -6, if you mill to much off the end your internal thread connector will start to cover over the supply to the injector.

Last edited by MOTORS S GT; Jan 13, 2016 at 08:40 AM.
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Old Jan 13, 2016 | 08:43 AM
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Originally Posted by MOTORS S GT
Why not use a banjo connection with -6, if you mill to much off the end your internal thread connector will start to cover over the supply to the injector.
I have not seen a 3/8 bspp banjo bolt available in torques or anywhere else for that matter

Milling looks like easiest option and its free and wont compromise anything else i dont think

Im gonna get in touch with torques to confirm that that is my only option though first!
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Old Jan 13, 2016 | 08:50 AM
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Just looked in Earls, 3/8 bsp banjo bolt 28mm long part No 1012-

Last edited by MOTORS S GT; Jan 13, 2016 at 09:08 AM.
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Old Jan 13, 2016 | 09:57 AM
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Originally Posted by MOTORS S GT
Just looked in Earls, 3/8 bsp banjo bolt 28mm long part No 1012-
Inwas actually wrong

Cdf just 100% confirmed its a 9/16 unf fitting so i can get what i need online easily!

Cheers
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