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Thread: Brown Benz (M104-Megasquirt)

  1. #41

    Join Date
    Sep 2013
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    Rochester NY
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    279
    Quote Originally Posted by 202brabus View Post
    I got a downpipe off a 2.6 190e and fitted it to the m104 and it did not fit. Do you have any pics of you m104 motor showing the exhaust manifolds?
    Posted one in your thread already. They look the same to me at a glance. If you want a pic of the manifolds in the car I can snag one tomorrow.
    84 8v 5 speed ---- 93 2.6 auto ---- 1.8t swapped Audi Fox ---- 02 Lifted Discovery II

  2. #42

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    That would be awesome
    1986 201.034 "Berthilda" 5-speed, Evo II wheels 225/45/17, 400E front swaybar, 400e rear brakes
    1986 201.024 M104 engine, 5-speed Conversion, Updated LE trim console, 400E front sway bar, W202 springs, Limited slip Diff, 16v Steering box, 3" magnaflow exhaust system, 16v body kit, 16v Fuel tank, 16v Brake Booster, 400E calipers, MS2 3.57.
    1993 201.029 Sportline LE.

  3. #43

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    Megasquirt is awsome when you're an irresponsible 20 year old...



    It's back to normal now though. That setup was nearly undriveable.
    84 8v 5 speed ---- 93 2.6 auto ---- 1.8t swapped Audi Fox ---- 02 Lifted Discovery II

  4. #44

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    What did you do for fuel lines on the rail to the body?
    1986 201.034 "Berthilda" 5-speed, Evo II wheels 225/45/17, 400E front swaybar, 400e rear brakes
    1986 201.024 M104 engine, 5-speed Conversion, Updated LE trim console, 400E front sway bar, W202 springs, Limited slip Diff, 16v Steering box, 3" magnaflow exhaust system, 16v body kit, 16v Fuel tank, 16v Brake Booster, 400E calipers, MS2 3.57.
    1993 201.029 Sportline LE.

  5. #45

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    Quote Originally Posted by 202brabus View Post
    What did you do for fuel lines on the rail to the body?
    I just used a mixture of hoses and fittings that I had lying around. It's pretty straight forward, fuel in at the back, and fuel out from the pressure regulator. Hook it all together so it doesn't leak. I've actually been meaning to rework it. I think I'm using the zig zag hard line from the M103 for the fuel in. Probably adds a little extra flow resistance which I don't need, not that I'm maxing out the fuel system... yet

    The best way would probably be to get the right metric fittings off of McMAster with barbs and run some injection hose to the factory lines.
    84 8v 5 speed ---- 93 2.6 auto ---- 1.8t swapped Audi Fox ---- 02 Lifted Discovery II

  6. #46

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    Ive got an idea that might work.
    1986 201.034 "Berthilda" 5-speed, Evo II wheels 225/45/17, 400E front swaybar, 400e rear brakes
    1986 201.024 M104 engine, 5-speed Conversion, Updated LE trim console, 400E front sway bar, W202 springs, Limited slip Diff, 16v Steering box, 3" magnaflow exhaust system, 16v body kit, 16v Fuel tank, 16v Brake Booster, 400E calipers, MS2 3.57.
    1993 201.029 Sportline LE.

  7. #47

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    Did you ever hook up an idle air control motor? The m103 2 wire valve works great.
    1986 201.034 "Berthilda" 5-speed, Evo II wheels 225/45/17, 400E front swaybar, 400e rear brakes
    1986 201.024 M104 engine, 5-speed Conversion, Updated LE trim console, 400E front sway bar, W202 springs, Limited slip Diff, 16v Steering box, 3" magnaflow exhaust system, 16v body kit, 16v Fuel tank, 16v Brake Booster, 400E calipers, MS2 3.57.
    1993 201.029 Sportline LE.

  8. #48

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    Do you have the part number off your throttle cable? I ordered one for a 2.6 and it looks shorter than the cable in there have in there now. Also do you have some pics of the throttle linkage?
    Thanks
    1986 201.034 "Berthilda" 5-speed, Evo II wheels 225/45/17, 400E front swaybar, 400e rear brakes
    1986 201.024 M104 engine, 5-speed Conversion, Updated LE trim console, 400E front sway bar, W202 springs, Limited slip Diff, 16v Steering box, 3" magnaflow exhaust system, 16v body kit, 16v Fuel tank, 16v Brake Booster, 400E calipers, MS2 3.57.
    1993 201.029 Sportline LE.

  9. #49

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    Sep 2013
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    Rochester NY
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    Now that the snow is slowly melting away here in NY, it's time for summer prep. The engine developed an alarming tick. Definitely upper engine sounded like a collapsed lifter right up front. The screwdriver to the ear was no help narrowing it down any farther. Tore the girls dress off and found a few things I don't like.



    First things is the second intake tappet was squishy. I could move it up and down with my finger. Only that one though, every other tappet, intake and exhaust, was hard as a rock. From what I've read I thought they should all be flexible when the cam is not engaging the valve but since the noise location and the location of the "outlier" match, I'm guessing that's it. Cam lobe looks fine, tappet mating surface looks fine. I'll take it apart and clean it out which should hopefully fix it, not really a problem. The bigger problem came next.

    Opened up a bit more to reach the timing cover easier.


    I'll have to get more pics once the lower cover is off too but the timing chain guide on the tensioner side is destroyed.



    From what I can tell, the chain is fine although it did groove the aluminum backing of the guide once the plastic bits popped out of the way. I've got all three new chain guides, and a new tensioner coming. If someone knows a bit more about the M104 maybe offer up some advice? I know all about the woes of the chain tensioner and its proper installation. For practice I tried removing the old tensioner and reinstalling it. The locking c-clip that acts as the non reversible ratchet which causes everybody's problems wouldn't even engage on the first ridge making the cap on the end of the housing impossible to install, with or without the spring. It would hit the top of the plunger before going in far enough to engage the threads. I'm hoping the new one makes more sense to me and maybe offers an explanation. If my tensioner screwed up somehow and wore through the guide rail prematurely causing it to break then I'm actually lucky I didn't snap a camshaft.

    Oh well, I don't mind too much because it's still too salty to drive the car and at this point it's so easy to work on this thing. I've got lots of other fun parts to start putting on for the summer which I need to get started on too.
    84 8v 5 speed ---- 93 2.6 auto ---- 1.8t swapped Audi Fox ---- 02 Lifted Discovery II

  10. #50

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    Yep...


    Aside from the chunks, it's all pretty clean.



    All stripped down:


    Here's the ruined chain guide.


    And my oil chain guide is missing a chunk...


    I should have known better to order this too. Completely forgot about it so gonna have to wait another week for a new one before I can reassemble. Anyone know if reusing head bolts is okay? I'm considering doing the head gasket with my serious case of "while i'm there." I still have to take the cams off and clean my clickety lifter. Also, the new timing chain tensioner works like it's supposed to so there was definitely something wrong with the old one.
    84 8v 5 speed ---- 93 2.6 auto ---- 1.8t swapped Audi Fox ---- 02 Lifted Discovery II

  11. #51

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    I know my Haynes manual said to inspect the head bolts for stretching and if none they could be reused.
    But personally I'd get new ones if possible. I feel you on getting the gasket done now though.
    1993 190e 3.0

  12. #52

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    Albany, Oregon
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    +1 on HG
    ____________________
    1993 190e 2.6 AMG Clone/Almandine
    1990 190e 2.6 / Black
    1997 e320 / White
    2003 Ranger 2.3 16V

  13. #53

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    Head Gasket's done.







    Lots of Carbon buildup, I spent a long time cleaning the pistons and combustion chambers. Cylinder walls looked good though.



    All cleaned up.

    84 8v 5 speed ---- 93 2.6 auto ---- 1.8t swapped Audi Fox ---- 02 Lifted Discovery II

  14. #54

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    While the head was off, I was able to get a good picture of my throttle linkage. It's a re purposed bracket from the M103 intake manifold somewhere, folded and bent to fit and bolted with one bolt onto the lower intake manifold right next to the block.



    It's an absolute pain to bolt on with the head in place, which naturally is how I did it, but it reuses the quick release clip on the throttle cable so it never really needs to be removed. Here's what it looks like with the cable in place.



    The cable wraps up and over the upper intake manifold then drops down in between the runners through the mount. I used one of the threaded ball joint arms off of the M103 throttle linkage and ran a die of the same thread over the little metal crimped end of the original cable. The arm threaded on nicely and clips straight to the M104 throttle body. This was one of those "Just need something that works" fixes but it kinda works well.

    Went through and cleaned every single hydraulic tappet...



    Right down to the check valve springs...



    Didn't want to take any chances. That process took about six hours, 24 tappets, 15 minutes a piece. Made sure to prime them up with oil. More than one were squishy so it made sense.

    My buddy also came by for moral support and to play with his Polaroid camera. Caught me re-installing the cams in 1983.



    This one looks straight out of workshop manual.



    I'm in reassembly mode, maybe fire her up next weekend.
    84 8v 5 speed ---- 93 2.6 auto ---- 1.8t swapped Audi Fox ---- 02 Lifted Discovery II

  15. #55

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    Ran the engine last Saturday, taking it a muffler shop Friday to get the exhaust done a bit more properly.

    Also made up some short shifter extensions and did that whole mod.


    84 8v 5 speed ---- 93 2.6 auto ---- 1.8t swapped Audi Fox ---- 02 Lifted Discovery II

  16. #56

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    Sep 2013
    Location
    Rochester NY
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    E420 brake upgrade done yesterday and got the summer wheels on. Probably the best value for money mod I've done. $100 used calipers. $40 G2 Caliper paint and a couple dollars worth of TipsnLips protective clear coat. $200 rotors and ceramic pads from Cbrakes on Ebay. Once the pads bed in I'll see if I can lock up the BBS's.





    Also welded up some Ebay V-bands for the exhaust and a couple glass packs. I have an appointment tomorrow morning to have the rest of the piping done, should sound pretty mean.
    84 8v 5 speed ---- 93 2.6 auto ---- 1.8t swapped Audi Fox ---- 02 Lifted Discovery II

  17. #57

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    May 2011
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    Very nice work
    1993 190e 3.0

  18. #58

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    Nice exhaust! \/
    1986 201.034 "Berthilda" 5-speed, Evo II wheels 225/45/17, 400E front swaybar, 400e rear brakes
    1986 201.024 M104 engine, 5-speed Conversion, Updated LE trim console, 400E front sway bar, W202 springs, Limited slip Diff, 16v Steering box, 3" magnaflow exhaust system, 16v body kit, 16v Fuel tank, 16v Brake Booster, 400E calipers, MS2 3.57.
    1993 201.029 Sportline LE.

  19. #59

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    Exhaust is finished.




    It's loud but just tame enough to bare. I'm in love.
    84 8v 5 speed ---- 93 2.6 auto ---- 1.8t swapped Audi Fox ---- 02 Lifted Discovery II

  20. #60

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    Aug 2006
    Location
    San Diego, Ca.
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    229
    That looks crazy loud.
    Hopefully you don't need to do long trips with it.......seems like it would get on your nerves and your head and ears would need a break.
    Is it droney or boomey in the cabin at any engine speeds?
    1988 300E 3.2 M104 & 5-speed swap; gutted
    1986 300E 5-speed
    1996 C280 Sport
    1977 Ferrari 308 project w/ longitudinal Cadillac Northstar/Porsche G50/50

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