Elbow Fitting Needed for PCV Piping

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Elbow Fitting Needed for PCV Piping

Postby w30bob » Tue Jun 13, 2017 7:33 am

Hi Guys,

Does anyone know where to get the 90 degree reducing elbow circled in the pic below? It goes from 1/8 NPT Female to 1/4 NPT Female. I've been able to source all the other fittings from Weatherhead or Parker, but no one seems to offer the 90 degree reducing elbow with both ends female. It's supposed to be made of steel per the ORD, but if it's being made today it's being made in brass. The ORD part number is 8329637 or WO-807430.

Or if someone has one laying in the bottom of their toolbox and would part with it...........I'm game! Just shoot me your price and address.

thanks,
bob

Image
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Re: Elbow Fitting Needed for PCV Piping

Postby Radtech » Tue Jun 13, 2017 11:37 am

It is just a brass 90 with 1/8" pipe fittings.Any auto parts store should have them.
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Re: Elbow Fitting Needed for PCV Piping

Postby Ben Dover » Tue Jun 13, 2017 1:28 pm

Go on eBay, Female Reducing Elbow 1/4"Pipe to 1/8" Pipe. Look for Iron, brass is OK.
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Re: Elbow Fitting Needed for PCV Piping

Postby w30bob » Tue Jun 13, 2017 5:30 pm

Hi Guys,

Been to every hardware store within 50 miles, called McMaster, checked the Parker and Eaton catalogs...........no such animal. I've also lived on eBay since the day it started and can find almost anything and it's not there either. The only ones on eBay are street elbows (rough round castings) and one cast brass elbow that looks nothing like the original fitting. Everyone has these in 1/8NPT to 1/8 NPT or 1/4NPT to 1/4NPT, but not reducing female to female. Everyone also has reducing 1/4 FNPT to 1/8 MNPT.

I even bought a couple 1/8 FNPT to 1/8 FNPT machined brass that looked similar to the original fitting hoping I could drill and tap one side to 1/4.......but there isn't enough material in the fitting to make it happen. I may just have to buy a hunk of steel and have a machine shop make the darn thing for me. Oh........I tried cross referencing the ORD part numbers (ordinance and WO numbers) and can't even find a cross for it anywhere. Seems to be one strange animal.

thanks,
bob
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Re: Elbow Fitting Needed for PCV Piping

Postby Ben Dover » Tue Jun 13, 2017 6:25 pm

Took me less than 30 Seconds. E-Bay 252445738527, Galvanized steel. I stopped at this, bet I could find a lot more, tho.
1/4" to 1/8" Female 90 Degree Galvanized Reducing Elbow. :wink:
2011 MVPA PIONEER AWARD - MVPA #1064
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO
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Re: Elbow Fitting Needed for PCV Piping

Postby Ben Dover » Tue Jun 13, 2017 7:03 pm

Try Brass Reducing Elbow, Brass Female Elbow, I found several, available in USA.
2011 MVPA PIONEER AWARD - MVPA #1064
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO
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Re: Elbow Fitting Needed for PCV Piping

Postby Radtech » Tue Jun 13, 2017 7:38 pm

You will need a 1/4"npt brass 90 and a 1/4-1/8 bushing.I doubt you will find the original part as apparently they were only made specially for this application only.
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Re: Elbow Fitting Needed for PCV Piping

Postby Ben Dover » Wed Jun 14, 2017 5:14 am

Here's two eBay
BRASS:
272026850526
122294700738
Am sure you will like. The price is right. :wink:

Galvanized:
252445738527
2011 MVPA PIONEER AWARD - MVPA #1064
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO
Ben Dover
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Posts: 40204
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Re: Elbow Fitting Needed for PCV Piping

Postby w30bob » Wed Jun 14, 2017 7:04 am

Ok..........guess I'm not explaining this right.....my bad. But radtech gets it. Sure, they make tons of 90 degree reducing elbows.......brass, cast iron, etc......but none of them look remotely close to the original part. 8329637 looks like a square/rectangular block of steel machined flat on all sides except one, drilled and tapped for 1/8 FNPT on one side and 1/4 FNPT on the other. The other reducing elbows out there will work.........but will look like something from under your sink. As radtech said..........they must have been made special.

But after more digging last night I may have found a way around this problem. Instead of using the correct unobtainium steel block female to female reducing elbow I can use a brass block reducing elbow that goes 1/4 female to 1/8 MALE (just changing the 1/8 female to male)..............if I switch the branch tee it connects to from a 602x5, which has the male 1/8 NPT on the top, to a 652x5, which has a female 1/8 hole on top. It won't be technically correct, but when screwed together you won't be able to tell if the male end is on the reducing elbow or the branch tee.........it will just like two blocks of brass connected by a small nipple. With a little steel color paint it'll look original! But what a friggin' pain in my arse. :roll:

Thanks boys. And if you do ever run across one of these square steel reducing elbows I still want it. I'm going to frame it and put it on my wall to remind me that restoring MVs isn't always fun.

thanks,
bob
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