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#1
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Wasn't sure where to post this, but I was looking to make a custom manifold to run 6 jets on my I6 engine. I was wondering what the inlet side of the jets thread pitch/size are?
Thanks PS. If this is in the wrong location I apologize, but I do have a HFS-3 |
#2
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The inlet side of the jets is a push on hose tail ?
The threaded section that screws into your intake or pipework is M8x0.75mm |
#3
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Am I way off here? I actually haven't received my HFS-3 yet, but based on the pictures on the website I assumed that the push to connect fittings were threaded into the jets after you remove the push on hose fitting. |
#4
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The little hosetail section does screw onto the main jet body. No idea what that thread is, but the jet is designed to be used with it in place.
I guess you could remove it and configure it some other way...not sure of what benefit it might be ? |
#5
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The benefit of removing that hose tail would be the fact that I would be removing 6 small sections of hose. Instead I will be using a fuel rail/manifold that feeds 6 injectors. I will then only have mechanical joint connections to each jet and get rid of the nylon hose. The only place I will have hose is from the pump to the valve and from the valve to my custom manifold. It is a bit over the top and may not be necessary, but I have limited space to work in and it may be my best option. I believe the fitting is a M8, but not sure if it may a BSP. Either way if I can figure out size and thread pitch that would be great. |
#6
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I'll have a look later and see if I can measure.
The main thread is M8x0.75mm BSP is BSP threads, not metric. I'd think the internal thread is metric too given it's so small and fine. |
#7
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I would appreciate it if you could measure it. I understand metric and BSP are different, I just didn't know if the main thread was the same as the inlet side of the jets or if the inlet has a BSP thread like the adapters the kit comes with. An easy test I planned on doing was just trying to thread one jet into the inlet side of another. If it worked then I would know it was M8x0.75mm, if not then I would have no idea.
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#8
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As best I can tell. The OD of the thread measures 6.3mm, so basically 1/4"
Thread pitch, on imperial the thread gauge closest match is 25G, whatever that means. Metric pitch it's exactly 1.0mm Inside the jet. This jet must be about 18 years old ! lol, I assume they are still the same though. This one had a 4mm hosetail on the right hand piece in the photo. ![]() |
#9
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The jet was 1/4" betweem 1992 to 2002. From then it changed to M6 x 0.5mm.
Those are the real museum piece.
__________________
Richard L aquamist technical support |
#10
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Haha, Ive a few of them here !! I reckon I bought them back around 1994 or so. |
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