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Intake Banjo
- Thread starter DNK
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lbcs_r_fun
Jedi Hopeful
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poolboy
Yoda
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If you're talking about the one on the intake manifold there is an alternative, Don.
An actual banjo fitting was used because of the addition of the Anti Run-on Valve in 72 and the banjo was a way for the ARV to share the Vacuum with the brake Servo.
I doubt that you need the ARV, so you can get by with the brake sevo nipple for earlier cars.... which is also NA from most places, but a threaded nipple is available in the hardware stores.
I picked up one, but I don't recall the thread size, try a plumbing fitting for the thread size then shop for it with a nipple on the end.
An actual banjo fitting was used because of the addition of the Anti Run-on Valve in 72 and the banjo was a way for the ARV to share the Vacuum with the brake Servo.
I doubt that you need the ARV, so you can get by with the brake sevo nipple for earlier cars.... which is also NA from most places, but a threaded nipple is available in the hardware stores.
I picked up one, but I don't recall the thread size, try a plumbing fitting for the thread size then shop for it with a nipple on the end.
K
KSIS
Guest
Guest
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Intake Banjo = Ben drinking beer?
poolboy
Yoda
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I had to go check because it's not listed. I found that the bolt that holds the damper pulley to the crankshaft has the same threads..That would make it 5/8" UNF thread.
If you don't plan on using the Anti Run-on Valve, and can find a threaded hose barb fitting you can attach the brake servo hose to it..no need for a banjo if there's only that one nipple.
Have a look at Moss #373-875 as to what I'm suggesting. Of course Moss list it as NA,..and if none of the others...maybe McMaster Carr might.
https://www.mcmaster.com
Possibly ?
part # 5346K77
Brass Barbed Hose Fitting Adapter for 3/8" Hose ID X 5/8"-18 Male Flare
If you don't plan on using the Anti Run-on Valve, and can find a threaded hose barb fitting you can attach the brake servo hose to it..no need for a banjo if there's only that one nipple.
Have a look at Moss #373-875 as to what I'm suggesting. Of course Moss list it as NA,..and if none of the others...maybe McMaster Carr might.
https://www.mcmaster.com
Possibly ?
part # 5346K77
Brass Barbed Hose Fitting Adapter for 3/8" Hose ID X 5/8"-18 Male Flare
dklawson
Yoda
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5/8-18 is also the thread pitch used by BMC on its intake manifolds where a brake servo was fitted. Unfortunately... while close to 3/8" pipe, it's not close enough. 3/8" pipe is larger in diameter. However, you could chase the threads of a 3/8" nipple with a 5/8-18 die to make the part you need. MiniMania has the nipple for $14, part number 12H1405.
However, if you really want a banjo bolt, those are also used on BMC A-series engines for the oil supply pipe and apparently for later brake servos. Again, check out MiniMania part number 2A715 ($13) and the same part used (U/2A715) for $7.
However, if you really want a banjo bolt, those are also used on BMC A-series engines for the oil supply pipe and apparently for later brake servos. Again, check out MiniMania part number 2A715 ($13) and the same part used (U/2A715) for $7.
OP
DNK
Great Pumpkin
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Ken, the plug I had in there is a 14 gauge. I don't have a 7/8 bolt size on my tool but the plug is 3/4<X<1 where X id the plug.
The back of my checker says that 7/8 has a 14 pitch thread size as course so I figure it's that.
But I still wonder if it is pipe size as if it wasn't it would screw right thru to the inside, correct?
The back of my checker says that 7/8 has a 14 pitch thread size as course so I figure it's that.
But I still wonder if it is pipe size as if it wasn't it would screw right thru to the inside, correct?
poolboy
Yoda
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Don, there are 2 threaded holes in your manifold , right ?
One is for the EGR steel pipe. That one is more or less in the center of the manifold and it's NPT threads if you have the 72-76 version of the manifold.
The one for the Brake servo is closer to the rear carb and unless someone rethreaded it should still be 5/8-UNF.
But I guess anything is possible either out of whim or necessity by a past owner.
One is for the EGR steel pipe. That one is more or less in the center of the manifold and it's NPT threads if you have the 72-76 version of the manifold.
The one for the Brake servo is closer to the rear carb and unless someone rethreaded it should still be 5/8-UNF.
But I guess anything is possible either out of whim or necessity by a past owner.