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3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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Old 07-26-2005, 10:33 PM   #1 (permalink)
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For the past few days my car has been popping out of third gear. This morning I couldn't get it to go into third gear without it making a horrible grinding noise! (it makes the noise right after I let off the clutch)

I can get it into third if I push in the clutch and let the RPMs drop, lift the clutch gently, then listen/feel for a small pop and then it will engage.

I'm new to manual tranny's, especially foreign manual trannys. Before I tear this thing apart. what should I be looking for? (i'm thinking blown synchros)

1985 318i 5spd
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Old 07-27-2005, 09:38 AM   #2 (permalink)
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used i would think the synchro's are gone, i've heard BMW's tend to have problems with that gear. Have you checked the seals? if they are leaking, even minutely, third is the first to go.
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Old 07-28-2005, 12:24 AM   #3 (permalink)
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Come to think of it, i've never changed/added oil to this tranny. Is it too late now?, or can adding gear oil help it out a little.

If it truly is dead, can I use the transmission from a six cylinder or do I have to hunt down another getrag 240?
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Old 07-28-2005, 01:35 PM   #4 (permalink)
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Originally posted by Hypnogaja@Jul 27 2005, 11:24 PM
Come to think of it, i've never changed/added oil to this tranny. Is it too late now?, or can adding gear oil help it out a little.

You might be able to buy yourself a little time...

If it truly is dead, can I use the transmission from a six cylinder or do I have to hunt down another getrag 240?
[snapback]365649[/snapback]
^^^don't know for sure...
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Old 07-30-2005, 11:30 AM   #5 (permalink)
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take all of the Transmission oil out, ATF fluid can save the synchro's if they are in bad shape, but this sounds like the synchro is gone too bad, but the 6cyl won't fit, sorry you'll have to totally restore this box, and findin a 4cyl tranny shouldn't be so hard LSA oil can help too
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Old 07-30-2005, 04:58 PM   #6 (permalink)
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I'm gonna take the tranny out tomorrow, it shouldn't be as much of a pain as taking the massive 700R4 out of my IROC

BTW, where are the oil ports on this tranny? I see one threaded screw on the bottom, but I think it's just a drain plug. Dunno where I would add oil.

I love this car but i'm prob. gonna sell the car soon. Spent nearly $1k on it so far, might as well put the money towards an e36 or a 325e or i
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Old 07-31-2005, 09:15 PM   #7 (permalink)
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Originally posted by Hypnogaja@Jul 30 2005, 03:58 PM
I'm gonna take the tranny out tomorrow, it shouldn't be as much of a pain as taking the massive 700R4 out of my IROC

[snapback]366300[/snapback]

Bah, i pull those in like 2 hrs...



but really, like 2 hrs, and they're out
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Old 08-02-2005, 08:51 PM   #8 (permalink)
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Originally posted by german-speed-demon+Jul 31 2005, 08:15 PM--><div class='quotetop'>QUOTE(german-speed-demon @ Jul 31 2005, 08:15 PM)</div><div class='quotemain'><!--QuoteBegin-Hypnogaja@Jul 30 2005, 03:58 PM
I'm gonna take the tranny out tomorrow, it shouldn't be as much of a pain as taking the massive 700R4 out of my IROC*

[snapback]366300[/snapback]

Bah, i pull those in like 2 hrs...



but really, like 2 hrs, and they're out
[snapback]366483[/snapback]
[/b][/quote]

this might be allitle off topic but i just can wait to ask

i want to do a manual conversoin and i remember you told me that i need to cut the flooring to fit the hydrolick ram for the clutch. i found that theres a opening on the floor and the brackest for the clutch can be bolted, what else needs to be done or to look for?
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Old 08-04-2005, 10:29 AM   #9 (permalink)
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hmmm...mount points for master and slave cylinders, and check trans tunnel for shifter clearance...e-brake shouldn't be a problem, (drawing on experience from other vehicles for this, so bear with me. Never done a trans swap in a bmw)...cosmetically, you have the center console from a manual? i'll try to think of some more and then repost later.
dave
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