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Intake Banjo
- Thread starter DNK
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lbcs_r_fun
Jedi Hopeful
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poolboy
Yoda
Online
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
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Guest
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Intake Banjo = Ben drinking beer?
poolboy
Yoda
Online
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
Offline
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
Online
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.