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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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#1 (permalink) Old 06-15-2005, 09:08 PM
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its a long post but please read


Alright so I finished my first ever engine swap in a 1990 325i bmw convertible (Auto) . It was a hard thing to do for me because I had never done anything like this before, and thanks to the help of this forum and all of its intellegent members I have been able to pull through without the engine blowing up or anything bad like that.


about a month ago I got the engine to start, it was a standard swap from an old engine to a rebuilt one so therefore I had no conversions to make. it would start and rev up then shut off. At this point my dad said that he wanted it finished and checked over so we brought it to a mechanic my family has used for as long as I can remember. This shop has fixed all of my dads previous bmw's so I thought hey why not mine if someone else is willing to pay.
They told me I did a good job in the replacement but I neglected to replace the torque converter seal on the transmssion so they said that they would replace it and the car would be ready.

last friday I went to the shop to pick up the car and pay the 900 something dollar bill (mostly labor) for pulling the transmission and fixing the seal then putting the transmission in. I started it up and started to drive away. About 500 feet from the shop, the car slipped out of gear and I guided it to the side of the road.

so now its back at the shop, and they are looking at it again, and they said something is wrong with the transmission (I could have told them that). I drove it to the shop with a bad idle and the transmission did fine so my question to you guys is what went wrong. it had and still has enough transmission fluid. im starting to loose my assurance that this mechanic knows what he is doing.

thanks ahead of time for any feedback you might have

-Casey

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#2 (permalink) Old 06-15-2005, 11:21 PM
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Dude, I love the poster for the BMW convertible. Can you imagine the hell that child went through with a name like that?

Anyways, back to topic. You know what I think? Don't go back. If the transmission was fine before hand, and after replacing the seal, the thing is dying out on you, they definitely do not know what they're doing, or they're trying to screw you. And at $900 a pop to remove/install the tranny, you're getting raped, not screwed. Is that American? It costs me $500 in labour to get mine pulled/reinstalled, judging by past receipts (last time was in 2001), and thats up here in Canada.

You know your way around the car. Drain the transmission, install a new filter, and refill it. See what happens. And by the way, what does a front transmission seal have to do with an erratic idle? Something is askew here, I think.

I know what this is like. I have a mechanic that my family trusts, and he's been fairly reliable overall. My first car, however, was sabotaged. My '89 Reliant had fine brakes when it was handed over, and came out with nice thick gouges in the front discs, prompting replacement of the discs, and while they were at it, they wanted to do tie rods, wheel bearings, etc, etc. Not to mention I told them the headgasket had to go, and they told me I was wrong, and replaced my temp sensor. 10kms later, the car was overheating and blowing white steam again.

I take my BMW to this fellow because he sold the car to me, and did all the improvement work himself, so I figure he's not gonna screw with it. I also learned a good lesson: watch the whole procedure, start to finish. Even oil changes. Don't trust anybody with your baby.

I wish you luck.

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#3 (permalink) Old 06-15-2005, 11:49 PM
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Quote:
Originally posted by offabroadway@Jun 15 2005, 07:21 PM
Dude, I love the poster for the BMW convertible. Can you imagine the hell that child went through with a name like that?

Anyways, back to topic. You know what I think? Don't go back. If the transmission was fine before hand, and after replacing the seal, the thing is dying out on you, they definitely do not know what they're doing, or they're trying to screw you. And at $900 a pop to remove/install the tranny, you're getting raped, not screwed. Is that American? It costs me $500 in labour to get mine pulled/reinstalled, judging by past receipts (last time was in 2001), and thats up here in Canada.

You know your way around the car. Drain the transmission, install a new filter, and refill it. See what happens. And by the way, what does a front transmission seal have to do with an erratic idle? Something is askew here, I think.

I know what this is like. I have a mechanic that my family trusts, and he's been fairly reliable overall. My first car, however, was sabotaged. My '89 Reliant had fine brakes when it was handed over, and came out with nice thick gouges in the front discs, prompting replacement of the discs, and while they were at it, they wanted to do tie rods, wheel bearings, etc, etc. Not to mention I told them the headgasket had to go, and they told me I was wrong, and replaced my temp sensor. 10kms later, the car was overheating and blowing white steam again.

I take my BMW to this fellow because he sold the car to me, and did all the improvement work himself, so I figure he's not gonna screw with it. I also learned a good lesson: watch the whole procedure, start to finish. Even oil changes. Don't trust anybody with your baby.

I wish you luck.
[snapback]353907[/snapback]

yea, I thought it sounded a little fishy when they said that they had to replace that seal, but at the same time I thought that I might as well have it done. Im gonna give them a call tomorrow and tell them whats up. When I did the engine swap I had to stand the transmission up on its guido disk to put the torque converter in and it leaked tranny fluid on the floor is there a chance something could have gone wrong when I did that maybe fluid in the wrong place or something? I dont know much about transmissions so if I did something wrong I wouldnt know anyway thanks for your advice and I was really happy when I found that BMW posterboard picture because it really helps nerds and cars connect, runs better without windows

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#4 (permalink) Old 06-16-2005, 11:21 AM
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Haha, hey, I hadn't thought of it that way. BMW vs. Microsoft. I hope Bill Gates doesn't drive one. Can you say pro-Linux (or Mac for that matter)?

It depends on where the transmission leaky was coming from. The torque converter is a fluid coupling with lockup mechanism, so it needs tranny fluid to survive. Replacing your seals was likely a good thing, but its hard to say. Guido disc = guide disc? Are you sure you didnt bend/stress the part that the transmission was standing on, and did you put wood underneath it so it didn't destroy itself on a cement floor? Its possible you skewed the shaft that it was leant on, but I still don't understand the popping out of gear, unless you were losing transmission fluid. Did you check when you came to a stop?

I would redo the fluid and filter and see what she does. Does the shop have any guarantee on their work? Because if they were the last ones to touch the tranny, they should be at least partly liable for it's failure in such a short distance.

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#5 (permalink) Old 06-16-2005, 04:58 PM
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Quote:
Originally posted by offabroadway@Jun 16 2005, 07:21 AM
Haha, hey, I hadn't thought of it that way. BMW vs. Microsoft. I hope Bill Gates doesn't drive one. Can you say pro-Linux (or Mac for that matter)?

It depends on where the transmission leaky was coming from. The torque converter is a fluid coupling with lockup mechanism, so it needs tranny fluid to survive. Replacing your seals was likely a good thing, but its hard to say. Guido disc = guide disc? Are you sure you didnt bend/stress the part that the transmission was standing on, and did you put wood underneath it so it didn't destroy itself on a cement floor? Its possible you skewed the shaft that it was leant on, but I still don't understand the popping out of gear, unless you were losing transmission fluid. Did you check when you came to a stop?

I would redo the fluid and filter and see what she does. Does the shop have any guarantee on their work? Because if they were the last ones to touch the tranny, they should be at least partly liable for it's failure in such a short distance.
[snapback]354105[/snapback]

the shop does guarentee thier work, and it was on a wood block when i had it up, but it was supported by the engine lift so the full weight wasnt on the guide disk at the end of the tranny. When the car slipped out of gear thats the first thing I checked before calling the shop and the fluid level was fine. and it wasnt loosing transmission fluid.

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#6 (permalink) Old 06-16-2005, 06:37 PM
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**Update**

talked to the shop today and they said that a pump inside the transmission may not be working because transmission fluid isnt flowing... any ideas on what they are talking about

Casey

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#7 (permalink) Old 06-17-2005, 04:22 PM
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Quote:
Originally posted by htp.bmw@Jun 16 2005, 03:37 PM
**Update**

talked to the shop today and they said that a pump inside the transmission may not be working because transmission fluid isnt flowing... any ideas on what they are talking about

Casey
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it pumps the fluid into different drums which make the car shift gears, when a certain drum is full its in the gear when it changes gears it fills a different drum, if its not pumping enough the drum wont stay full and it will slip out of gear, same symptoms ans low trany fluid. shouldn't be that hard to fix.

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#8 (permalink) Old 06-17-2005, 05:06 PM
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guido isnt the guide disc, its a typo, its supposed to be guibo or also known as flex coupler at the end of the tranny where the drive shaft is attacted. and about your engine revving and turning off, can you explain that more?
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#9 (permalink) Old 06-17-2005, 08:31 PM
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so its not that hard to fix the pump in the transmission (its being done professionally, is that big bucks?) the engine would rev up when i turned it on to about 3000 and then shut off, there were vaacum leaks and it was the first time the engine had been started

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