Firewall Fuel hardline nut fitting size??
Thread Starter
Senior Member
Joined: Dec 2004
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From: EMAIL ME at Chase@ChaseBaysOnline.com
I need to know the thread pattern on this nut here. (found this pic in another thread that didnt help much)

Reason why is i got all the stuff to run stainless lines from the hardline. (Tube sleeve, tube nut, hoses, earls inline fuel filter, etc)
But where the hardline comes out from the firewall i dont think its long enough b4 it bends in through the firewall to get my tube cutter to cut it, then put on the tube sleeve and nut, and then flare it.
So basically i need to know cuz i found some cool Fuel Injection adapters on http://www.anplumbing.com but they only come in 14 x 1.5mm and 16MM x 1.5.

Also if anyone has done something else, found another alternative, or has input feel free to share.
TIA!!

Reason why is i got all the stuff to run stainless lines from the hardline. (Tube sleeve, tube nut, hoses, earls inline fuel filter, etc)
But where the hardline comes out from the firewall i dont think its long enough b4 it bends in through the firewall to get my tube cutter to cut it, then put on the tube sleeve and nut, and then flare it.
So basically i need to know cuz i found some cool Fuel Injection adapters on http://www.anplumbing.com but they only come in 14 x 1.5mm and 16MM x 1.5.

Also if anyone has done something else, found another alternative, or has input feel free to share.
TIA!!
Find some lose Honda nuts and start trying to screw them on.
When one fits, take it to Home Depot, Lowes etc and test the thread pitch on one of those gauges.
Or get the tool that will allow you to figure out the pitch without the use of a testing a nut.
You can usually find them in the tap and die section of tool places.
When one fits, take it to Home Depot, Lowes etc and test the thread pitch on one of those gauges.
Or get the tool that will allow you to figure out the pitch without the use of a testing a nut.
You can usually find them in the tap and die section of tool places.
Thread Starter
Senior Member
Joined: Dec 2004
Posts: 10,137
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From: EMAIL ME at Chase@ChaseBaysOnline.com
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jonathan_ED3 »</TD></TR><TR><TD CLASS="quote">Find some lose Honda nuts and start trying to screw them on.
When one fits, take it to Home Depot, Lowes etc and test the thread pitch on one of those gauges.
Or get the tool that will allow you to figure out the pitch without the use of a testing a nut.
You can usually find them in the tap and die section of tool places. </TD></TR></TABLE>
Thanks for the suggestion. but i drive my car everywhere so i dont wanna do that, plus im sure someone here will know...
When one fits, take it to Home Depot, Lowes etc and test the thread pitch on one of those gauges.
Or get the tool that will allow you to figure out the pitch without the use of a testing a nut.
You can usually find them in the tap and die section of tool places. </TD></TR></TABLE>
Thanks for the suggestion. but i drive my car everywhere so i dont wanna do that, plus im sure someone here will know...
What do you mean you drive your car everywhere?
What does that have to do with anything.
Every Honda enthusiast should have a box of loose "Honda" nuts and bolts!
They come in very handy for situations like this
What does that have to do with anything.
Every Honda enthusiast should have a box of loose "Honda" nuts and bolts!
They come in very handy for situations like this
Thread Starter
Senior Member
Joined: Dec 2004
Posts: 10,137
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From: EMAIL ME at Chase@ChaseBaysOnline.com
haha i mean...im at work now, and i drove my car here. i would hafta undo all my fuel lines to try to thread a buncha bolts on there. When i could just sit here on my work computer and see if people know hahaha
Honda-Tech Member
Joined: Nov 2002
Posts: 2,753
Likes: 5
From: I told you to wait in the truck in Texas, United States
I came up with 14mm X 1.5mm pitch..
Somewhere there are a couple of threads on this..
look around..
Try here:
https://honda-tech.com/zerothread?id=1452210
The information was already provided in a thread You participated in..
How about that...
Somewhere there are a couple of threads on this..
look around..
Try here:
https://honda-tech.com/zerothread?id=1452210
The information was already provided in a thread You participated in..
How about that...
Thread Starter
Senior Member
Joined: Dec 2004
Posts: 10,137
Likes: 0
From: EMAIL ME at Chase@ChaseBaysOnline.com
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88DXCRX »</TD></TR><TR><TD CLASS="quote">I came up with 14mm X 1.5mm pitch..
Somewhere there are a couple of threads on this..
look around..
Try here:
https://honda-tech.com/zerothread?id=1452210
The information was already provided in a thread You participated in..
How about that...</TD></TR></TABLE>
well thats a EK...i didnt know if EF was different.
So you u measured the threads on EF's and it was 14mm x 1.5 ???
If thats correct then thats AWESOME!! Makes things easier, THANKS
Somewhere there are a couple of threads on this..
look around..
Try here:
https://honda-tech.com/zerothread?id=1452210
The information was already provided in a thread You participated in..
How about that...</TD></TR></TABLE>
well thats a EK...i didnt know if EF was different.
So you u measured the threads on EF's and it was 14mm x 1.5 ???
If thats correct then thats AWESOME!! Makes things easier, THANKS
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