bv9900

This is my sad story, in which I need advice on what to review once this is dismantled, I transferred the story from another forum to increase the possibilities of improvement


Well, today while driving on a 500km trip the car asked me for oil, I stopped and made a small puddle, but a puddle , not a drop.
I check the level and at the minimum, I'm completely angry now, well... I'm going urgently for oil (I practically stopped at a shopping center) to examine the problem a little, let the family wait hehe, I've done it at the level and it's dripping , dripping, all the time, I search and can't find, small but stable. I decide to take a risk, I circle 20km at a correct level, 50km, a good level, in the end I have finished the journey although it has ended at the minimum again, a liter in 400km has been wasted.
I already have it in the elevator and I'll be the surgeon tonight.
I already know where it goes, or so I think, crankshaft seal, why? Well, why after 200km or so I gave the acceleration for pleasure and the rpm needle shot up, that made me understand why I wasn't losing oil in driving speed and that I wasn't going to run out of oil. at any moment and the engine could explode, so I relaxed a little and turned on the radio.
He tried to take it in the best possible way, but thinking about it I worry, how can a crankshaft seal get damaged at 340,000km? Lately I can hear the chain sometimes, even though I changed it 70,000 years ago, maybe it's the bench...? I guess tomorrow I'll get to the question kit, but what a gift my colleague gave me, so I think about it...
Any similar case? Something happening?
By the way, any ideas on how to remove the gear lever. In principle I will dismantle everything inside and see, but it is still easy to do below, I don't have the computer here :dash1:
But until the moment of assembly I don't think I see it as urgent
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Well nothing, I have disassembled the box, quite easy by the way, about 2 hours once I got on the elevator, I found the bimass (mixture of sasch and luk I see in the mallet) very damaged, I have not taken it out yet, only the box Let's see if I dare to upload a video later, now to the shower
I have also found some excessive tightening torques (I would say on the bell, 10kg by eye, maybe more, they sounded with a good clap! when released)
A bead from my view that is not original on the distribution cover and a support for the diesel tubes with the screw loose a couple of millimeters, something tells me that it could be a poorly placed or rejected seal...
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https://youtu.be/VWEgsoPSkQg?feature=shared
There is the state of my clutch, I am thinking of leaving it because I am a stingy, in addition to not noticing defects in its driving, nor vibrations or noises and reinforced by this other video
https://youtu.be/1M_IkewixhI?feature=shared

Although for me the looseness is excessive, in the second video I really see them similar.
By the way, since I plan to raise everything I do a little, he commented that it is not necessary to touch the lever from above to release it from the box, it simply has two very easy-to-extract pins on top of the box, when you release the block from the box you lower it a little and it is accessed without major problem
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Well, the seal was leaking because it had a couple of pieces of plastic, bakelite, sheet metal, brown and brittle. After crying a little I decided to move on and now I'm removing the timing cover, I hope it's from a skid like thisI'm doing it without removing the engine, which I'm almost regretting.
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Well there we have the problem, I didn't do well to turn on the radio
https://ibb.co/t40jShV
https://ibb.co/PwrGwpN
https://ibb.co/jwm3gKL
Now I'll relax and think about what material I order on the weekend.
Well, we can go with everything from 1500 pavetes, all original, to putting just enough and from other brands that can be €80.
At first I was thinking of a distribution kit, camshaft covers and gaskets, including firestop washers, reaming and good cleaning, that's for sure.
I evaluate the front side crankshaft seal, crankcase gasket, even the oil pump, also the diesel pump or its crankcase seal, but of course we add hours and hours.
And I have to remove the exhaust gas precooler for the EGR, I'm going to do that this weekend at some point, but it's also difficult.
Do you think I should add something to the list of mandatory things?
I have already decided to reuse the clutch, since the disc is new and I don't see manufacturing dates but I suspect that it has been changed, especially because of the crankshaft seal that was not original
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https://ibb.co/FHzThwL
https://ibb.co/mX1y7Z0
https://ibb.co/XprpG7V
This is the duct between the exhaust manifold and the EGR, for me it is perfect assuming the km it has, what I don't know is its function, heating antifreeze or cooling gases, I suppose the goal is to cool gases