Hi all,

Hopefully someone can help me with this one as it’s been difficult to track down what I need:
Rocker cover thread is 1/2” UNF 20 (or a very close tapered thread)
I want a 90 degree fitting that’ll thread in and have a 1/2” breather outlet

I can’t seem to find any brass 90 degree fittings that are the right thread or outlet size
My second option is a banjo bolt, but I haven’t found any barb fittings in 1/2” outlet with the right size inner diameter

Thanks!

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Hey Tim

Autobarn at Albion Park have a heap of different fittings - I needed some 3/8 NPT stuff for my fuel reg. Took it in with me to make sure I got the right size/thread etc.

May be worth a shot,they might have what you need behind the counter.


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67 Van, 1275cc

If it is a tapered thread are you sure it is UNF? It may be BSP (British Standard Pipe) which are still commonly used today - a plumbing supplier may be better.

A 1/4" pipe thread is the following: OD 0.518", 19 TPI.


Cheers, Paul.

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1970 Morris Mini K

Thanks Paul, I had the crazy idea that 1/4 BSP would have been a 1/4” OD thread but obviously that isn’t the case now I’ve read up some more!

Looks like there is a good choice in 1/4 BSP to 1/2” barb so I’ll have to check the local shop

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Even if you can find a right angle barb of close size threadwise, then run that threads tap into the offending thread and use some thread sealant or ptfe tape. But it sounds like a 1/4 bsp to me.

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Cheers Dave.

Autobarn Albion Park found me an elbow with the right thread and hose size (TFI #BME1214) which matches the thread on the old straight fitting. Thanks for sorting me out Paul & Gambo

It’s about 1cm too long on the barb end, so it’ll need to meet the grinder

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Good to hear Tim - they are my local weekend go to for things like that now.


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67 Van, 1275cc