Picked up my '83 320i with the 5 speed a few months back. I went to change the transmission and diff fluid today and found this metal shard on the drain plug of the tranny :O
Looking through the Hayes manual it looks like it could be a number of different parts.... does anyone have any idea?
Car drives and shifts fine, but when cold 1st and 2nd are very difficult to get in gear. Overall it is a bit notchy too. Putting in some MTL today based off my reading of other threads here.
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Found another larger piece in the drain pan....
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Drain pan? Of a 5 speed?
Maybe a shift fork? http://www.realoem.com/bmw/enUS/show...diagId=23_0532
'81 E21 320i / '90 E30 325i / '̶9̶2̶ ̶E̶3̶4̶ ̶5̶2̶5̶i̶t (sold) / '15 Toyota XW30 / '̶̶8̶0̶ ̶E̶2̶1̶ ̶3̶2̶0̶i̶A̶ (sold)
I just mean the plastic pan I let the transmission oil drain into. So that piece must have just flowed out while it was draining.
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Did Randy go to bed early again?
It is a piece of the part that the shift fork pushes against when you go to change gears, it is cylindrical with a shoulder. That's what the shift fork contacts, the shoulder.
A piece of slider #14 which is moved by the fork. 13 and 15 are synchronizers.
Last edited by okieflats; 01-20-2018 at 11:44 PM.
Thank you amarino and okieflats for the quick identification. Could this cause any serious damage to continue driving it this way? I imagine it's been this way for a long time.
My guess would be since the shift fork makes contact with approximately half the circumference of the slider, a missing piece of the slider contact surface wouldn't affect the overall contact between the fork and slider ring.
Worth investigating more?
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I would use regular oil, not synthetic at this point. drain and check the magnet much more often (500 miles?) to see if you are getting more metal. Find a way to glue a bigger magnet around the drain plug and make sure you catch as much steel as possible from circulating and getting caught in the gears.
Maybe try some tiny rare-earth magnets? https://www.homedepot.com/p/MASTER-M...45HD/202526363
'81 E21 320i / '90 E30 325i / '̶9̶2̶ ̶E̶3̶4̶ ̶5̶2̶5̶i̶t (sold) / '15 Toyota XW30 / '̶̶8̶0̶ ̶E̶2̶1̶ ̶3̶2̶0̶i̶A̶ (sold)
I had a scare that I dropped a nut down the timing cover into the pan on my old m10. I ended up sticking a few flat ring magnets on the bottom and sides of the pan from the outside as a precaution. Years later when I took the m10 out to swap in an m20, I pulled the oil pan off and guess what was stuck to the pan where one of the magnets was? Yup, the nut I dropped. Safe and sound. lol
I'll go ahead and slap some magnets on the underside and change the oil in it more often and just hope I don't find any more pieces then.. sounds like the magnet method has been proven. Thanks guys.
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