Author Topic: power steering reservoir whoosh leak.  (Read 4409 times)

Dave

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power steering reservoir whoosh leak.
« on: September 15, 2013, 21:33:41 »
I always have red atf accumulating around the front left side under hood and i never knew what caused it. . I am working on the timing and bumping the motor to line up the timing marks and i notice than when i turn off the engine a big puff of atf sprays out of the top of the reservoir.  What the heck?

ja17

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Re: power steering reservoir whoosh leak.
« Reply #1 on: September 17, 2013, 01:00:59 »
Try changing the fluid and replacing the filter. Sounds like the filter may be plugged.
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

Dave

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Re: power steering reservoir whoosh leak.
« Reply #2 on: September 17, 2013, 02:40:48 »
Thanks Joe.  I will get on it.
I don't see a gasket on top under the wingnut.  Am I missing one?

wwheeler

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Re: power steering reservoir whoosh leak.
« Reply #3 on: September 17, 2013, 02:58:19 »
I just have a simple flat washer under the wing nut. There is of course a gasket on the lid that seals to the reservoir bowl. My understanding is that in the cap there is an oil baffle much like in the valve cover that allows the reservoir to breathe as the fluid level changes. There should be a small hole just under the wing nut, and I believe that is where it is vented. Maybe it is plugged and allows pressure to build?
Wallace
Texas
'68 280SE W111 coupe
'60 220SE W128 coupe
'70 Plymouth Roadrunner 440+6

stickandrudderman

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Re: power steering reservoir whoosh leak.
« Reply #4 on: September 17, 2013, 10:28:00 »
You've probably got air in the system; try bleeding it at the box.

Benz Dr.

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Re: power steering reservoir whoosh leak.
« Reply #5 on: September 18, 2013, 03:29:25 »
I raise the front wheels off the ground and then I turn the steering wheel back and forth until all of the air bubbles are gone. This method is very effective.
« Last Edit: September 22, 2013, 21:51:54 by Benz Dr. »
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

garymand

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Re: power steering reservoir whoosh leak.
« Reply #6 on: September 18, 2013, 17:51:39 »
Its a little tricky.  The filter is in the fluid, at the bottom of the Canister/reservoir.  the filter is a ring, about 30 mm tall, with a sheetmetal disc sitting on top of it.  All this is under the fluid.  There are a couple of 7 or 8 mm holes in the disc.  You that the spring off the screw shaft and used a magnet or a Phillips screw driver in a hole to get the disc out, the reach in and grab the filter.  It takes a lot to plug that filter. 

Don't know why u are getting the squirts, though.
Gary
Early 250SL German version owned since 71, C320, R350, 89 Porsche 944 Turbo S

Dave

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Re: power steering reservoir whoosh leak.
« Reply #7 on: September 19, 2013, 02:17:35 »
Im on it.  Thanks