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1999 S70 GLT Power Steering Foam - cause - missing return baffle in pump reservoir

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abscate
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Year and Model: 99: V70s S70s,05 V70
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Re: 1999 S70 GLT Power Steering Foam - cause - missing return baffle in pump reservoir

Post by abscate »

From all data, which I believe comes from Volvo VIDA

1999 power steering Fluid Specification

(ATF) Type F, G, Dexron IID, E, III, Ford Mercon.
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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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800artfreed
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Year and Model: 98 S70T5; 99 S70GLt
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Post by 800artfreed »

I have finally taken pictures of a disassembled 1999+ year PS reservoir. I just hacked it open so you will notice the rough edges at the seam between the upper and lower halves. The pictures have long titles to be self explanatory. I have added some comments to a few of the pictures.
Previous discussion in this thread made the point that a wire coat hanger can be used to grab the return tube and hold it in position and then use a channel lock style pliers to push the brass pipe back into the internal return tube. Of course you must first remove the upper hose to the PS reservoir. I replaced the factory clamp with a stainless steel screw clamp. This fix prevents you from having to buy a new reservoir.
I have not had any problems since I did the repair 3 years ago.
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I think shrinking return hose allows brass pipe to work its way out of position. Internal return tube then falls off.
I think shrinking return hose allows brass pipe to work its way out of position. Internal return tube then falls off.
01_out of position brass tube allows return tube to fall off and create aeration of PS fluid.jpg (254.07 KiB) Viewed 1062 times
Return tube is attached to upper half before assembly of PS reservoir by the factory
Return tube is attached to upper half before assembly of PS reservoir by the factory
02_Internal return tube_notice rectangel of plastic used to force tube down into the bottom of PS reservoir.jpg (519.78 KiB) Viewed 1062 times
03_internal view of return tube held in place by brass pipe.jpg
03_internal view of return tube held in place by brass pipe.jpg (218.3 KiB) Viewed 1062 times
04_PS return tube pointing down_forced by rectangle of plastic.jpg
04_PS return tube pointing down_forced by rectangle of plastic.jpg (319.34 KiB) Viewed 1062 times
05_Brass tube in place that connects internal retrun tube.jpg
05_Brass tube in place that connects internal retrun tube.jpg (250.87 KiB) Viewed 1062 times
It hard to see but at the right angle of the return tube there is a solid plastic tip that presses against the wall of the reservoir. The only way the tube fall off is the movement of the brass pipe our of position into the hose.
It hard to see but at the right angle of the return tube there is a solid plastic tip that presses against the wall of the reservoir. The only way the tube fall off is the movement of the brass pipe our of position into the hose.
06_PS return tube in place_notice small plastic tip on right side pressing against side wall of reservoir.jpg (471.29 KiB) Viewed 1062 times
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1998 S70-T5 200K+
1998 V70-T5 200k+
1999 S70-GLT 80k+
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