The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Suspension

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-18-2015, 03:05 PM   #1
paintman
Registered User
 
Join Date: Dec 2010
Location: washington NJ
Posts: 766
a question for the power steering pump experts....

Hey guys! I am in the process of trying to convert my saginaw pump from a banjo fitting over to a AN fitting. I am having issues with finding the proper fitting. I purchased a 5/8"-18 to 6AN fitting but it doesn't seem right. The problem is the new fitting seems to tighten down on the flare inside the pump far to soon.

Here is a pic of the new fitting on the left and the original banjo fitting that came with the pump.
[/URL]

Here is a pic of the inside of the pump showing the male flare and a pic of the fitting in place hand tight.
[/URL]
Shouldn't the hex /shoulder part of the fitting bottom out against the back of the pump housing, thus allowing the use of a crush washer. Or does the fitting rely solely on the flares inside for a seal???? What am I missing here?
[/URL]
paintman is offline   Reply With Quote
Old 11-18-2015, 04:10 PM   #2
BossHogg69
motor exploder
 
BossHogg69's Avatar
 
Join Date: Mar 2009
Location: Pittsburgh, PA
Posts: 2,346
Re: a question for the power steering pump experts....

I'm definitely no expert, but flare fittings just rely on the flare. I have a similar adapter on my saginaw power steering pump to use -6 AN lines plumbed to my hydroboost. It looks about like yours does.
__________________
Adam

1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac
1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's
1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac
2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80
2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac

Use the SEARCH function on this forum - it is your friend!!
BossHogg69 is offline   Reply With Quote
Old 11-18-2015, 04:22 PM   #3
paintman
Registered User
 
Join Date: Dec 2010
Location: washington NJ
Posts: 766
Re: a question for the power steering pump experts....

Quote:
Originally Posted by BossHogg69 View Post
I'm definitely no expert, but flare fittings just rely on the flare. I have a similar adapter on my saginaw power steering pump to use -6 AN lines plumbed to my hydroboost. It looks about like yours does.
That's what I always thought. Just seems like I should get more then 2-3 turns on the fitting before it tightens against the flare. seems like it will come loose.
paintman is offline   Reply With Quote
Old 11-18-2015, 04:26 PM   #4
donandal
Registered User
 
Join Date: Jun 2012
Location: Lakewood,New York
Posts: 502
Re: a question for the power steering pump experts....

is that brass flare fitting down in that hole, removable from the pump?
donandal is offline   Reply With Quote
Old 11-18-2015, 04:31 PM   #5
paintman
Registered User
 
Join Date: Dec 2010
Location: washington NJ
Posts: 766
Re: a question for the power steering pump experts....

Quote:
Originally Posted by donandal View Post
is that brass flare fitting down in that hole, removable from the pump?
Sure looks like it's brass, not sure if it's removable though. Should it be????
paintman is offline   Reply With Quote
Old 11-18-2015, 06:22 PM   #6
donandal
Registered User
 
Join Date: Jun 2012
Location: Lakewood,New York
Posts: 502
Re: a question for the power steering pump experts....

I thought I saw on a different thread where some one just
pulled it out.

can't find that thread yet.
donandal is offline   Reply With Quote
Old 11-18-2015, 07:31 PM   #7
Jrainman
Registered User
 
Jrainman's Avatar
 
Join Date: Jul 2015
Location: North East PA
Posts: 684
Re: a question for the power steering pump experts....

there is a spring under pressure behind the brass , it needs to be there ,if it pops out on you be sure to reinstall it ,
Jrainman is offline   Reply With Quote
Old 11-19-2015, 11:45 AM   #8
chevy_mike
Never Ending Projects
 
chevy_mike's Avatar
 
Join Date: Jul 2006
Location: San Diego, CA
Posts: 3,836
Re: a question for the power steering pump experts....

Banjo fittings require crush washers on each side to seal correctly. Inverted flair fittings only require the tapered areas to match for a seal.
__________________
.
1965 C10 Panel, Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD
1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD
1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD


We were given two ears and one mouth for a reason... listen twice as much and speak half as often...
chevy_mike is offline   Reply With Quote
Old 11-21-2015, 09:05 PM   #9
truckeroy
Registered User
 
truckeroy's Avatar
 
Join Date: Oct 2013
Location: Shelbyville, IL
Posts: 111
Re: a question for the power steering pump experts....

That unthreaded area on the end of the thread looks like it is for a bubble flare and/or metric fitting. While working on my brakes I found out there are 4 types of flare fittings. Inch inverted flare like we use on our older US vehicles, Japan inverted flare with metric thd, Europe bubble flare with metric thd and British bubble flare with inch thd. I found this out when I blindly grabbed different lengths of brake line at Farm & Fleet one day and naturally got every type but the US inverted flare. The bubble flare have the tip without thd out to the end.
__________________
1948 Chevy 1/2T
1964 Chevy 1/2T stepside short bed
1939 Pontiac coupe Street Rod
2005 GMC 1/2T short bed
truckeroy is offline   Reply With Quote
Old 11-21-2015, 09:45 PM   #10
paintman
Registered User
 
Join Date: Dec 2010
Location: washington NJ
Posts: 766
Re: a question for the power steering pump experts....

Hey thanks for all the responses guys. Here's a better pick of the flare. When I tighten the fitting in hand tight, I can feel it bottom out on the flare inside the pump, so it is definetly making contact. Now wether or not it is the proper flare is now in question. Secondly it seems as if the fitting would come loose with only 3 turns on the fitting.
[/URL]

You would think there would be a specific fitting that would go with this pump. I guess I can always just use the origininal banjo fitting. I just wanted to put a 45 degree fitting on the pump so I can run my lines a little better.
paintman is offline   Reply With Quote
Old 12-14-2015, 01:20 PM   #11
RodnRudy
Senior Member
 
RodnRudy's Avatar
 
Join Date: Oct 2014
Location: New Palestine In
Posts: 932
Re: a question for the power steering pump experts....

The last picture you have posted is indeed an inverted flare fitting. Just tighten it down and you should be good to go.
RodnRudy is offline   Reply With Quote
Old 12-14-2015, 01:33 PM   #12
truckeroy
Registered User
 
truckeroy's Avatar
 
Join Date: Oct 2013
Location: Shelbyville, IL
Posts: 111
Re: a question for the power steering pump experts....

That fitting looks like a foreign inverted flare fitting. Probably British bubble flare with inch thread. US inverted flare does not have the non threaded end on it like you show in the picture. The threads are inch, but with the tip not having threads , it will bottom out before you get enough thread engagement.
__________________
1948 Chevy 1/2T
1964 Chevy 1/2T stepside short bed
1939 Pontiac coupe Street Rod
2005 GMC 1/2T short bed
truckeroy is offline   Reply With Quote
Old 12-14-2015, 01:37 PM   #13
RodnRudy
Senior Member
 
RodnRudy's Avatar
 
Join Date: Oct 2014
Location: New Palestine In
Posts: 932
Re: a question for the power steering pump experts....

I stand corrected truckeroy, I should've looked at the pic closer.
RodnRudy is offline   Reply With Quote
Old 12-14-2015, 03:17 PM   #14
jbarron
Registered User
 
Join Date: Apr 2006
Location: Spring, Texas
Posts: 167
Re: a question for the power steering pump experts....

If you search for inverted flare to an fitting, they all look like that.

I agree not enough thread engagement.
__________________
'72 3/4 Cheyenne Super 402/TH400 Gear Vendors
'72 3/4 Cheyenne Super 350/200R4
'50 1/2 Chevy 3 Window
jbarron is offline   Reply With Quote
Old 12-14-2015, 04:46 PM   #15
chevy_mike
Never Ending Projects
 
chevy_mike's Avatar
 
Join Date: Jul 2006
Location: San Diego, CA
Posts: 3,836
Re: a question for the power steering pump experts....

I think those pumps normally used a inverted flare hard line, which would allow more of the nut to thread in, since the flare end would be shallower than the I/F part of the AN fitting. If you're getting three full turns with the AN fitting into the pump, you're good. Once you snug them up, the are set. Make sure you support your line so it doesn't flop around and try to back the fitting out.
__________________
.
1965 C10 Panel, Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD
1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD
1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD


We were given two ears and one mouth for a reason... listen twice as much and speak half as often...
chevy_mike is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:48 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com