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Thread: E46 Compact Track Day Build

  1. #151
    Join Date
    Apr 2014
    Location
    Cardiff, UK
    Posts
    280
    My Cars
    E39 528i, E46 325ti
    Loving how clean the underside is looking now. Keep up the great work.

  2. #152
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    186
    My Cars
    2001 E46 325ti Compact
    Quote Originally Posted by MrMuddle View Post
    Loving how clean the underside is looking now. Keep up the great work.
    Thanks itís really satisfying to look at...now weíll see on Saturday how well it performs. Initial indications are really good though. Just too bad that the only day that looks like rain this week and the next is Saturday, but then some sliding will be practiced


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  3. #153
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    186
    My Cars
    2001 E46 325ti Compact
    Had a blast Yesterday at Ring Knutstorp. The car worked flawlessly and despite some rain during the day the conditions were really good. The poly bushings have definitely introduced some more sound into the cabin as you can now clearly hear the engine revving in the whole cabin compared to before. I wasnít quite sure as itís been a while since I drove the thing but the video clearly shows that the sound is different from past videos which were pretty much silent and the most prominent sound was the seat creaking

    The car is really well balanced and I always felt in complete control and it was apparent that the LSD was making it easier to push the car out of corners, but Iím still far from being able to steer it on throttle so a lot of seat time is due. It seemed more predictable than I remember it when coming out of corners and it didnít snap into oversteer like it used to but rather it builds gradually so you can catch it, but since itís a very new sensation it took some getting used to. I had an instructor in the car which was really nice to get some pointers on the line and how to work the throttle to make use of the new rear end.

    I had a small spin on lap six of this stint which was simply due to the fact that I wanted to see what would happen if I just stomped on the gas in the hairpin. And I guess thatís what track days are for so you can find and explore the limits in a safe place and not out on the road somewhere.

    https://youtu.be/FkWb3QOMNuI


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  4. #154
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    186
    My Cars
    2001 E46 325ti Compact
    So today I tackled changing the harmonic balancer which was much easier than I had dreaded.

    The biggest head ache was actually locating the hole to put fly wheel locking pin and when located it had a little surprise plug in it





    After sitting there for almost 20 years it was a real PITA but out it came and in went the locking pin.

    Taking off the Jesus bolt was no fuss at all. I used 24Ē breaker bar from Amazon and it just came off with no issue.

    New vs old





    Looking at the crank shaft seal after taking off the balancer it looked like it had been leaking at one point and it was very brittle so I decided to change which went like a breeze too.


    I was reluctant to clean too much around the timing case as itís pretty open around the crank shaft and I didnít want to get any grime in there.



    Slipped on the new Corteco balancer, put in a new Jesus bolt and then I drove out to a friend to borrow his MEGA torque wrench. 410 NM / 302 ft-lbs donít come in small packages.







    Popped in the blue plug and put on some new Meyle belts and weíre good to go.

    Looking at the old balancer it didnít seem in horrible condition, but the rubber inside the balancer was a bit ďwaveyĒ so I think it didnít hurt to change it.





    Being under the car again showed that I definitely have an oil leak and the whole passenger side of the oil pan is wet so Iím still thinking it need a new oil pan gasket. Itís on my to do list but I think Iíll put it off to the winter.


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  5. #155
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    186
    My Cars
    2001 E46 325ti Compact
    New rear brake calipers just went on. As mentioned before the dust boots on the old ones werenít seated correctly so the pistons are pitted and rusty and the left one had a leak at the bleeder a while back.








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  6. #156
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    186
    My Cars
    2001 E46 325ti Compact

    E46 Compact Track Day Build

    Today however I finally got the Compact out on track again. This time a new place for me, at Jyllandsringen. The biggest racetrack in Denmark. Itís still tiny

    A really good day with pretty good weather although we had a 20 minute thunderstorm mid day, but it was during another groups slot and when we went back out it was sunny again. Perfect timing for my group.

    Had one session with an instructor, none other than Danish racing legend and 1990 Le Mans winner John Nielsen. Itís just so awe inspiring to have a real racing driver in you car. I had about 6 laps behind the wheel and then he did 2. The way he can control a car is simply amazing. Thereís a lot to learn

    Well on to the more serious business being a quite big coolant leak after the last session. It was drippjng from the very back of the engine maybe even all the way back over the gearbox and when I took off the cap for the expansion tank I found a redish oily substance floating in the top.



    Right then and there I thought ďblown head gasketĒ. I had another instructor in the car for the last session so I asked him if he had noticed if I had money shifted and he didnít think I had.

    As it was a three hour drive home and the track is out in the boonies, I opted for driving it to a nearby town and seeing what happened and maybe get it picked up there by a truck. However no other symptoms arose, no white smoke, no overheating, no rough idle, no white stuff on the oil cap, nothing. And when I got to Vejle, about an hours drive still nothing and only a inch of coolant had left the expansion tank, but it was still dripping. So with no other symptoms in sight I decided to inch the car home not going over 3000 rpm and not a single problem on the way home.

    So now itís in the driveway. Any ideas to what it is wrong? Iím thinking the leak is one of the long coolant hoses that go down to the back of the engine, but what is the redish residue?? Does a blown head gasket cause a leak??

    [edit]: having looked at the coolant level this morning when cold it does not seem like any coolant has leaked from the system. With that in mind The below is only what I suspected when looking at the dripping which seemed like a lot. Not a full hemorrhage, but more than I would expect from the A/C although it was coming from that exact location and the weather was very warm and damp and the A/C was running on full swing while I was packing the car up.

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    Last edited by KlausH79; 08-19-2020 at 04:30 AM.

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