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JasonBird

Heres what I believe to be my 240?

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My tunnel is opened up already so fitting is not a problem. Its a OD and 5th is economical.

Thats all I know, now..... will it bolt up to the '74?

post-15930-13667606978623_thumb.jpg

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Guest Anonymous

I hope you don't mind me posting here! easier than texting!?

I think I can give you more info than I have over the phone. The gearbox is an E21 316 (not 316i), which means M10 engine- the gearbox will bolt straight on because the block is essentially the same as yours. I bought this gearbox from a 316 which was being broken due to lorry-related damage to both nearside doors.

It should fit in the tunnel without modification, articles that suggest otherwise usually come from the U.S. where the clutch slave cylinder doesn't have clearance in the LHD cars tunnel. The box has a mechanical speedo drive right at the back where the output shaft exits the housing. I believe you'll need a 323i clutch release bearing to use this 'box in your '02 (although I can't remember where I heard this and why).

Apparently this box is not as strong as the 245, however it is lighter and shorter than the 245 which has its advantages. you may not even have to shorten the shift linkage like you do with a 245.

When I got it home I drained the oil and replaced it with ATF to help clean the internals. the oil I removed was clearly old and smelly, but there was no sign of silt or debris. I drove the car breifly before taking the box, and satisfied myself it was healthy. The whole car, in fact, had the appearance of a car at least ten years younger! The seller emphasised it was a tragety to break the car, but both doors, the 'b' pillar and the sill was caved in. Clearly the damage was terminal.

Your '02 has a four bolt output flange and the E21 and E30 gearboxes have three-bolt, so you'll need to fit your prop with a different input flange.

I'm keen to see how this progresses...

-James

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Guest Anonymous

One more thing,

I have the propshaft aswell, the UJs aren't perfect but I do have access to a lathe- if you need either of the flanges or the splined coupling your welcome to them. I'm sure a propshaft specialist will have them though really.

Also, I meant to stick the drain/fill plug key in the box but forgot, so If you don't have one I'd post it to you.

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The plug would be handy. Thanks for all the info. I'll get set about this conversion pretty soon.

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Yes that is a Getrag 240 transmission, BUT thet one is from an E30 chassis and therefore does not mount to the '02 cross member as easily as a 240 from a very late 4-cylinder E21. The E30 240 gearboxes also do not have a mechanical speedometer output that the E21 ones do....

The Getrag 245 from a 1980 through early 1983 E21 is the MUCH more common trans to use in a five speed conversion than the 240. It has been done and there is a E21 240 box in one of my cars, but the measurements for \things like driveshaft and shift component lengths are not nearly as commonly known as the ones for the 245 box....

HTH

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Guest Anonymous

Tom, this box was removed from a 316 E21 and has a mechanical speedo drive. The locating lugs on the rear casing were unbolted for this picure, they were re-attached bofore I sold the 'box to Jason

-James

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Tom, this box was removed from a 316 E21 and has a mechanical speedo drive. The locating lugs on the rear casing were unbolted for this picure, they were re-attached before I sold the 'box to Jason

-James

OOPS, I swear I read E30 in your post.... Oh well, there's some good info in this thread now for someone to find in a search later... :)

Cheers,

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On 5/30/2009 at 6:49 AM, tjones02 said:

Oh well, there's some good info in this thread now for someone to find in a search later... :)

That would be me!  Seven years later... almost to the day.

 

Tomorrow I am thinking I will go to the local yard and pull the five speed out of an 83.  After reading this, I now know that it could be either a 245 or a 240, depending on whether it was an early or late 83.  This will be my first extraction, so I am a little wary, but it does not seem too scarey.  I just wish I had paid a little closer attention to the details, while reading all the conversion threads over the years.

 

I also found this information in an old for sale thread,

 

On 2/27/2012 at 5:19 PM, Europartsmonger said:

I have a five speed OD transmission from a 1983 320i. This is the trans that has two pieces. It is a one year only trans and is shorter than the typical 320i transmission. You can read all about this trans here on the FAQ board.

 

Right now the car is sitting on the dirt, so I cannot see what the transmission looks like.  I should have jotted down the vin, so I could date the car/trans and figure out which style it is (assuming it is the original).  

 

I will continue to learn what I can using the search feature, but if anyone feels like typing about 1983 five speeds, I am all eyes.

 

Tom

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Just go get it.

 

They're getting harder and harder to find, and the shortie isn't that much worse than the long 'un that you shouldn't use what's in good shape.

 

I ran a shortie in the race car for a season, and it held up fine.  Don't shift aggressively.

 

t

 

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Wellll, yesterday I went and pulled it.  The good news is that it is a 245.  

038.JPG

The bad news is that the last time the car was driven, the guibo blew up and did some damage.  

031.JPG

I really should have taken photos of the 'repairs' that had been done, to force the last few miles out of this poor car.

Duct tape sure gets icky when it has been oiled and there was a lot of it on this car... along with tie wire and zip ties.

One of the shift platform mounting block/bushings was  was broken in half, so it had a big zip tie.

The clip on one end of the shifter connecting link was missing, so it was wrapped with duct tape.

You really had to be there to appreciate the amount of work that went into doing it all wrong.

 

All that to say, I am banking on the idea that these transmissions are relatively robust and that I will be able to straighten (or replace) the shift-shaft and get a seal to keep the oil in.  

034.JPG

 

I will obviously need a new flange, since the holes are elongated and a new seal would probably be a good idea, 'while I am in there'.  I left the driveshaft there, because it had similar damage.

 

This may be a silly question, but could I use the rear cover from my four speed on this one (easily)?

There is no rush to install this, but I am hoping it is repairable (and in a little better condition on the inside).

 

I would like to extend (another) thank you to Nathan for helping me pull it and actually doing most of the work!

 

Tom

 

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Nope, getting the 'rear cover' off is a gearbox- apart kind of job.  

Try bodging it back together carefully, and see what happens...

 

t

 

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On 6/3/2016 at 5:15 PM, '76Mintgrun'02 said:

Wellll, yesterday I went and pulled it.  The good news is that it is a 245.  

 

 

I would like to extend (another) thank you to Nathan for helping me pull it and actually doing most of the work!

 

Tom

 

 

I'm always willing to work for food, and Tom cooks well! So it's hard to turn down! LOL!

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