Announcement

Collapse
No announcement yet.

318i build up, slow progress, M42 swap, lots of maintenance

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    318i build up, slow progress, M42 swap, lots of maintenance

    So after owning an e36 328, and an mx5 I missed e30s enough to get back into them. I didn't care what i got but it had to be manual.

    About 3 months ago i found a lovely white sedan 1200kms away for $4000. Flew down the weekend after finding it and drove it home.

    Click image for larger version

Name:	Screenshot_20161001-174405~01.jpg
Views:	1
Size:	117.9 KB
ID:	7249556

    Travelled the 1200kms home without a hiccup. Found that those aftermarket headlights are absolutely terrible and the morning after getting home i re wired in the stock smileys. also found that the m40 wouldn't rev past 5k rpm so it was definitely on its death bed.

    The plan was always to swap an engine into the car and after my ownership of a 318is I couldn't get the thought of having another m42 powered e30 out of my head so decided that was the route to go. Also happens to be a fair bit cheaper than most other swaps. I kept my eye out for something and ended up buying a complete package (motor, box, loom, ecu, driveshaft and exhaust) out from a rusty car for 1400.

    Cleared my schedule for a weekend and me and a mate got to work.

    Click image for larger version

Name:	IMG_20160924_164426713 (576x1024).jpg
Views:	1
Size:	72.9 KB
ID:	7249557

    Managed to pull the old motor out and get the new one in with 90% of the work done in one day. Next morning we got up and worked on getting the ignition stuff in, the rear section of exhaust on and generally doing the little things we forgot.

    Turned the key.

    No start.

    Car would crank forever if i let but not even a hint of fuel or spark. Started diagnosing and checking things for a good 6 hours. Eventually i exhausted all my options and me and my mate sat around and watched some racing.

    We then went out to his E30 to try and fix a no start problem and I realized that i had a grounding cable on the positive terminal! Changed that over and the thing splutters into life.

    To cut a long story short, I drove the car for 2 days without a problem. I then turned the heater on and 5 minutes later noticed the motor getting a little bit hot. nothing was making it cooler so I pulled over and looked into an empty overflow tank. tried filling it and found a large stream of water coming from the rear of the head. Limped it to my mates house, pulled the intake off and found this.

    Click image for larger version

Name:	IMG_20161001_175209461 (576x1024).jpg
Views:	1
Size:	51.4 KB
ID:	7249558

    motor must have sat long enough for the coolant to do some damage. I've managed to do some dodgy repairs by shoving a tight rubber hose into it and that seems to hold. I'll try and find a better permanent solution soon.

    My current problem is now the car still overheats. I'm 99% sure its the thermostat as it doesn't open as far as ones I've tested in the past. I'll go get one during the week from the stealer and see how it goes.

    While I fix the car I'll be using this little rocket to get around

    Click image for larger version

Name:	IMG_20160928_151853114 (1024x576).jpg
Views:	1
Size:	104.2 KB
ID:	7249559

    bought it the day after the car overheated as a very rushed purchase but I'm very glad i did. I've never had 2 vehicles and so all my repairs have been rushed or hard to do right. This will hopefully make my life a lot easier and less stressful as I don't need to have the car back on the road so quickly after doing work.

    Current plan of attack is
    Fix cooling issues
    Mess under intake, heater bypass and mustang injectors
    Coil on plug
    Exhaust

    Have a few other little things that need doing that I'll slowly take care of and document. Trying to do every bit of maintenance possible and everything right the first time.

    Anyway thanks for looking and does anyone have any idea what to replace this with?

    Click image for larger version

Name:	IMG_20161001_175209461 (576x1024).jpg
Views:	1
Size:	51.4 KB
ID:	7249558

    #2
    The last couple of weeks I've been slowly getting stuff done. Tapped threads into the head so I could use a plug to solve the corroded head issue. Blocked the throttle body heater on the head and plastic coolant pipe and also the heater inlet on the pipe. Its pretty ghetto at the moment but I'll work out a better solution.


    Ran simplified vacuum lines as well. After removing and looking at what actually had to be done I've realised that the mess under intake mod is incredibly easy. Gave everything a clean while I was in there but will give it a proper go over when I decide to paint everything. Lots of oil in the intake.


    Car runs nice and hard but seems to be missing a little when its First started and will die sometimes. It seems like a coil issue so next job will be a coil on plug install. Then maybe Mustang injectors.

    Comment


      #3
      Nice upgrade from a worn M40 I'd imagine. Really your only option for replacing that corroded nipple without sending the head off to be machined and have something brazed in is screwing in a pipe fitting that's the right size. Are you driving it without the proper fan shroud? The M42's fan is too far from the radiator to do much good without it.

      IG @turbovarg
      '91 318is, M20 turbo
      [CoTM: 4-18]
      '94 525iT slicktop, M50B30 + S362SX-E, 600WHP DD or bust
      '93 RX-7 FD3S

      Comment


        #4
        Originally posted by varg View Post
        Nice upgrade from a worn M40 I'd imagine. Really your only option for replacing that corroded nipple without sending the head off to be machined and have something brazed in is screwing in a pipe fitting that's the right size. Are you driving it without the proper fan shroud? The M42's fan is too far from the radiator to do much good without it.
        Yeah I considered that but i live in a hot climate so decided that blocking off the heater is just as easy. There are fittings at the local parts store that are the same size with an outlet so I always have the option.
        No shroud at the moment as none of my driving has been in traffic. Car kept cool really well today even stopped just to see what it would do. I'll do a couple of flushes to the system then reinstall the shroud.

        Comment


          #5
          Developed a leak in the rad over the past couple of weeks and bought a new one. Also bought a COP kit and coils are in the post. Pretty excited to get those in and tidy up the engine bay.



          Thought about making my own plate but after reading it needed to be 6mm I decided it would be much easier to buy it.



          Shiny new rad and filters



          I was reading around about bleeding the system and found a very useful piece of info. When filling the system, pull the top pipe off and pour as much into there as possible. This 'backfills' the head and engine, hopefully completely filling the system. Obviously there will be a few places where air will still stick around but I only had to add around a litre when bleeding the system. Made a huge difference especially with this engine.

          And I finally have a fully functioning cooling system. This has been a much longer process than I ever thought it would have to be and I'm glad it is over.

          As soon as I get the coils they will go in, I'll buy injectors on my next paycheck and hopefully get an exhaust very soon so it doesn't sound like a lawnmower.

          Comment

          Working...
          X