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#1
03-22-2005, 03:42 PM
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K1 spring/piston assembly
 I'm about to drop the tranmission pan and change the filter and I was thinking about rebuilding/replacing the K-1 spring/piston assembly at that time. I have seen a lot of info about changing the spring in the valve, but I'm wondering if it might be a good idea to replace the plastic piston insert or even just the o rings on it. Has anyone had any experience with this? What would the part #s be? I would guess that the rings would have to be of some special material to resist the trans fluid.As always I'm going to the group that has the hands on experience. We don't always say thanks right away but please know the help is always appreciated.
__________________
1983 300SD 200000miles Last edited by Phil; 03-22-2005 at 07:05 PM. Reason: terminology 
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#2
03-22-2005, 05:11 PM
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i just changed out the springs when i did mine...i dont guess it could hurt to change the O-rings as well, but i dont think its standard with this procedure
__________________
1985 300SD 192,000miles...Astral silver/ Grey MbTex 1983 300D 194,000miles...White/Tan MbTex...my newest addiction
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#4
03-22-2005, 09:03 PM
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The K1 spring kit is part# 126 270 44 77.
I got this right off the package. I bought two of 'em at the dealer for $10.50 each. They consist of three springs and two plastic pieces. No o-rings.
__________________
Michael LaFleur '05 E320 CDI - 86,000 miles '86 300SDL - 360,000 miles '85 300SD - 150,000 miles (sold) '89 190D - 120,000 miles (sold) '85 300SD - 317,000 miles (sold) '98 ML320 - 270,000 miles (sold) '75 300D - 170,000 miles (sold) '83 Harley Davidson FLTC (Broken again) :-( '61 Plymouth Valiant - 60k mikes 2004 Papillon (Oliver) 2005 Tzitzu (Griffon) 2009 Welsh Corgi (Buba) 
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#5
03-22-2005, 09:13 PM
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Quote:
__________________
1985 300SD 192,000miles...Astral silver/ Grey MbTex 1983 300D 194,000miles...White/Tan MbTex...my newest addiction
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#6
03-23-2005, 11:18 AM
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K1 spring/piston assembly
Quote:
Thanks fo the input. By the way can anyone tell me if its a good idea to put Trans X in when I change the trans fluid and what does it do?
__________________
1983 300SD 200000miles
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