H-Booster return line fitting?? - Team Camaro Tech
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post #1 of 5 (permalink) Old Feb 26th, 09, 06:34 AM Thread Starter
Senior Tech
EY
 
Join Date: Nov 2005
Location: Europe, Finland
Posts: 194
H-Booster return line fitting??

Hi

Where can I get a 90 degree fitting for the Hydrobooster low pressure return line? Are all fittings equipped with a metering hole?

My unit is -95 astro van unit and it has a brass, straight fitting with an o-ring seal. The problem is that the large hole for the fluid (what you see outside) is not drilled through, instead in the bottom it only has a small metering hole for returning fluid. Why is this BTW??

Can I use a "large hole" regular 90 degree fitting instead, or do I need the metering hole?

Thanks.

E.Y. Finland,
-67 RS
Orig: PG + 327/275 + 12-bolt.
Now: SBC409 TKO600
rodek is offline  
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post #2 of 5 (permalink) Old Feb 26th, 09, 10:10 PM
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Join Date: May 2001
Location: Ashby,MN, USA
Posts: 8,305
Re: H-Booster return line fitting??

if it's for the return line, i don't think there should be any sort of a restriction in there.
but i do know that the return line needs to be run a certain way for some reason or another..

you don't plan sincerity.
you have to make it up on the spot.

wanna hear about 20 years ago when i was too smart to know any better?
novaderrik is offline  
post #3 of 5 (permalink) Old Feb 27th, 09, 07:14 AM
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Join Date: Jan 2004
Location: Saginaw, Michigan
Posts: 1,122
Re: H-Booster return line fitting??

Most flow is coming from the gear port back to the pump reservoir. So you want the most direct route for the gear return flow. Hydroboost return flow is intermittant. So with return flows from the two components meeting at a T-fitting, attach the gear hose so that it runs straight through the fitting. Plumb the Hydroboost so that it comes in at an angle.

I don't think that there was ever any type of metering that occurred in a T-fitting.
Jim
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post #4 of 5 (permalink) Old Feb 27th, 09, 03:32 PM Thread Starter
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Join Date: Nov 2005
Location: Europe, Finland
Posts: 194
Re: H-Booster return line fitting??

I'll try to take a pic for you guys to see, there definitely is only a small metering hole in the brass low pressure- fluid out, to the reservoir, fitting.

E.Y. Finland,
-67 RS
Orig: PG + 327/275 + 12-bolt.
Now: SBC409 TKO600
rodek is offline  
post #5 of 5 (permalink) Old Feb 27th, 09, 04:56 PM
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Join Date: Jan 2001
Location: Bedford, PA
Posts: 38
Re: H-Booster return line fitting??

I installed HB last fall and I used the "stock" straight fitting on the return line. I think I do remember it having a pretty small hole in it. Not sure why.

I did not run it like Jim suggested(although his way is probably better), I have it with the HB return going straight through the T in the return line, primarily because it was easier to route this way. It seems to be working OK this way, but I have read that there can be issues when running a T in the return line.

I was thinking a Y in the line would be a good solution. Anyone know where to buy a reasonably priced Y block with 1/4" barbs or 1/4" NPT ports?
Joel Koontz is offline  
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