F1blueRx7

iTrader: (5)

I know the high pressure port on the rack is a 12mm x 1.5 fitting, can anyone confirm that the low pressure return port is the same?

cozmo kraemer

You can just cut the metal tubing that comes out of the port and run a rubber hose with hose clamps from there to the return on the PS pump. That is the way mine is and doesn't leak.

F1blueRx7

iTrader: (5)

Could if I could find it... It's missing, and the banjo fitting is less $ then what people are asking for the line in the FS section.

cozmo kraemer

Gotcha! I use a local place that has pretty much every fitting imaginable, they measure the thread for me.

Wish I could help ya?

Get someone that has the line to measure the pitch...probably the best way.

jkstill

iTrader: (11)

The return port is not the same.

Those 2 fittings are quite difficult to find. I managed to find the high pressure side, but never did find the return side. ( I think that's right )

Anyway, I took those fittings to two different shops that specialize in hydraulic fittings (one is mostly automotive, the other industrial) and they could never find a match for that one fitting.

Your best bet may be to ask on the for sale forum if someone has a Gotham P/S line loop kit they would sell, as that has both fittings.

F1blueRx7

iTrader: (5)

I'm not looking to loop however, Earls carb style fittings act as the banjo bolt. I'm trying to fab an -AN return for a GM powersteering pump. I'm going to go pick up a thread gauge and find out exactly what it is.

cozmo kraemer

There is a local industrial supply place here that has EVERY fitting imaginable, even the dreaded 'Japan A/C' fittings. I went there for my fittings for the GM P/S to Mazda rack, but I had the return line still on the rack (which made things a lot easier.)

jkstill

iTrader: (11)

I wasn't suggesting that you use the loop.

What I meant, and guess I didn't state clearly, was that you buy a loop kit just to get the fitting.

That fitting is extremely difficult to replace.

Or find someone that has removed the P/S, and buy the hard lines and put a clamp on fitting on the line.

F1blueRx7

iTrader: (5)

I picked up a thread gauge at sears to day. Along with my metric dial caliper I should be able to get an exact measurement.

F1blueRx7

iTrader: (5)

It's 14mm x 1.5mm

You can't adapt it with a banjo fitting (I haven't found one). It's lucky that the other fitting 12mm x 1.5 since this matches most carb/fuel rail fittings. You have to use a metric to AN fitting.

This would be the correct fitting IMO.

http://store.summitracing.com/partde...5&autoview=sku

Not sure if -6an is big enough for the return.

Earls also has a wider range of the same fittings with more options.

F1blueRx7

iTrader: (5)

Sorry it's 16mm x 1.5mm

I didn't measure the size properly initially
http://store.summitracing.com/partde...5&autoview=sku

That is the correct part for the return fitting. Oddly, it also happens to be the fitting thats used on the feed side of the GM ls1 pump.

cozmo kraemer

Now go measure the a/c condenssor thread size (two ports) that goes with Samberg's radiator!

Thanks for the info on teh steering rack it may come in handy some day and will save a lot of time to know the threading.

F1blueRx7

iTrader: (5)

Pretty sure it's a superflow aluminum 134a condenser with #6 and #8 lines on it. (#6 and #8 are common a/c fitting sizes). The factory fittings are different in 93. If your a/c fittings look like this:

it's metric.

If they're smooth without those cuts then it's SAE. I got that info from Greg (Eat-Pez). Thats about all I know. I don't know the specific sizes but I'm working on getting the necessary adapters/fittings so I can put it together myself and just take the hoses to an A/C or hydraulic shop and have them crimped. I won't be ready for this part until next month some time.


You can get one very similar to the ebay link he posted in his thread here: http://www.nostalgicairparts.com/air...denser-328.php

M104-AMG

iTrader: (8)

FWIW- Aeroquip makes an EZ-fitting for A/C refrigerant lines. Just find the ends you need (or have a proprietary one brazed to an EZ-fitting) buy some bulk EZ-fitting refrigerant lines, and you can make custom-length A/C lines in the field with a special hand crimper.

I've successfully done this on my Mercedes 5+ years ago, and no leaks.

:-) neil

http://www.imcool.com/articles/airco...ClipSystem.php
http://www.bostonweatherhead.com/pro...AC-MS002-E.pdf

F1blueRx7

iTrader: (5)

I've read about it, but the ezclip kit is still just as expensive as a beadlock crimper.

M104-AMG

iTrader: (8)

You don't need a full EZ-clip kit.

I just purchased the crimper and necessary crimps for $55. Fittings were $15 (x2), and hose was $20.

A beadlock crimper is $400+ and you can't crimp inside 99% of the normal engine bays!

:-) neil

F1blueRx7

iTrader: (5)

Hrm. They have sort of a limited amount of fittings. No Metric, no service ports. I'll still have to have a fitting brazed to match up with the metric rx7 fittings.

cozmo kraemer

I have the american a/c. I know I had a discussion with this with Ray Crowe and ordered some Japan a/c lines (WAY WAY more expensive) and they didn't fit...went to the American a/c lines and they did fit.

So I am pretty sure I have the more widely available a/c. I will do some research on how to hook it up this weekend. We have a great hydraulic hose place close to me, so it shouldn't be a problem as long as I know the sizes and lengths.

Thanks for your input Neil. That is an interesting fitting that I hadn't known about previously.

M104-AMG

iTrader: (8)

Yes there are low & high service ports, either in-line, or on 90-degree elbows.

A search will reveal more fittings.

:-) neil