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m40

  1. Timing belt issue on M40

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hey guys, I have a e36 316i M40 and did some work on it recently as i had an oil leak. I have taken timing belt, oil pan and filter housing to clean everything and change seals as well as the crackshaft seal. Everything went well but when i put it all together i noticed i had a strange noise...
  2. 1991 e36 m40 engine change

    Technical Guides for the E36, E30 and E21
    Hello everyone. I am going to attempt to install an M40 out of a E30 into a 1991 E36 which also has/had an M40 in it. The sump looks different, the E30 M40 sump is low at the front. Does anyone know if this engine will go straight into the E36 or will I need to change parts to make it fit. I...
  3. E34 518i injectors not firing

    Auto Electrical Forum
    Hi guys I have a 1991 E34 518i with the m40 engine that I have as a project car. It had serious vacuum leaks, so I took off the inlet entire manifold to replace the gaskets. While it was off I cleaned the idle control valve, tps, throttle body and the manifolds from oil and checked the o-rings...
  4. Rare 318i M40?

    General BMW Discussions
    I am wondering if i have a rare 1988 318i M40 (Plastic bumpers) as all the other models of around that age that I have seen have power steering but mine does not. I have owned it since 1992 and have seen many since but with power steering. Any views or opinions? Cheers!
  5. M40 Camshaft kit supplier.

    BMW Garages and Parts Retailers
    I am looking to buy a FEBI M40 camshaft kit complete,any suggestions with a reasonable price please? Thanks,Mick
  6. e36 316i m40 fluctuating rpm between 5k and 5.6k when full throttle

    BMW 3 Series Forum - Technical Talk on the BMW E21
    hi, this is my first post and i have a problem with my bmw e36 316i m40b16 from 1993. I bought the car a couple of weeks ago and changed almost all the rubber bushings, brakes and suspension and the filters(fuel, oil, air). I also went to the tire shop and let them straighten the wheels. The...
  7. M40 to M50/M52 swap

    BMW Engine Conversions
    I'm looking to replace my leaking M40 1.6 engine with something bigger. Im not looking for anything more than stock performance its just that fixing my current engine does not make much sense financially. What are some easy swaps I should be looking into? What are the costs of such operation...
  8. e34 518i m40 turbo project

    Turbocharging your BMW
    Hi, i have a 92 518i that im reluctant to sell. i have had the idea that im going to turbo it and see where i go from there. has this been done before or is there a thread anyone knows of? any tips and advice wouldnt go a miss as this is my first turbo project. thanks :)
  9. E36 318i M40 no spark

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi, I recently replaced the head after the timing belt broke and bent the valves. Now I'm getting no spark. I went to a wrecking yard and got 3 crank sensors, 2 DME's, a coil and an engine harness (from an auto, but I read it should work on a manual). I replaced the coil lead. There is power to...
  10. E30 M40 - without O2 sensor?

    Auto Electrical Forum
    Hi. I have e30 with M40 engine, with bad o2 sensor (diagnostic says low o2 sensor voltage about 0V). Fual consumption is bad, about 13L/100km. I would like to ask, that m40-s factory without o2 sensor, why dont have fault codes in motronic, if the ecu is same? These cars have o2 emulator? (i...
  11. e36 318i diff max rated power

    BMW Engine Conversions
    Hi all simple question i have a e36 318i 1992 australian model with the m40 motor currently. I am looking into a swap it with the australian holden commodore engine witch makes 300nm at about 145 kw from memory i may be wrong on the kw number. Anyway getting down to the real question will the...
  12. 1989 E30 M40 Fuel pump running constantly

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Good day Gents I hav a E30 M40 '89 model 318i, what a nice drive!!! I am only concern that the fuel pump does not switch on when igntion is swicth to "ON". It only switch on when car is idling or in running mode. Also when idling or running, the fuel pump runs constantly. Have already check the...
  13. 318i M40 e36 1993 - Starting Issue

    Auto Electrical Forum
    Hey guys, first time poster, first time BMW owner, haha. So I am from Australia picked up this second hand BMW 318i M40 e36 1993 and on the way driving home was like a 30minute drive I was close to home and the car had a little misfire, continued for a couple seconds fine then just died. I kept...
  14. 318i M40 e36 1993 - Starting Issue

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hey guys, first time poster, first time BMW owner, haha. So I am from Australia picked up this second hand BMW 318i M40 e36 1993 and on the way driving home was like a 30minute drive I was close to home and the car had a little misfire, continued for a couple seconds fine then just died. I kept...
  15. Hesitation when starting after stall.

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi all i have searched everywhere for a solution but no luck. anyway i have a 318i e36 with the M40 engine with 194000 km on it, it runs good no major problems however it being a manual somtimes i do stall it, when i try to restart it it really hesitates like it is being flooded and only heavy...
  16. Supercharging an m40 engine in a E36

    Supercharging your BMW
    Hi everyone, Rather new to this so sorry for my presentation. I have a 1992 bmw 318ise auto and I'm looking to supercharge it, but I have discovered that I appear to have a m40 engine which I believe is from an older model bmw. It's a 1.8 and I need some help as I'm not sure if it can be...
  17. E30 M40 running rich, no idle

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hello! First of all, sorry for my eng. I have an E30 with M40B16 engine, without kat, and o2 sensor. This car have a LPG system (central injection - vacuum controlled) I dont have problems in LPG mode, but if i switch to petrol mode, the car is running rich (powerless, smelly), and no idle...
  18. 1990 E30 316i M40 Motronic 1.3 Cold lumpy run and slight miss

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Ok, I'm re pursuing my cars condition. Summary: I have a spluttery cold running condition. When warm/normal operating temp, the car idles near enough perfectly. At both hot and cold conditions there is a slight misfire. I have...
  19. Fuel Injectors for M40 engine

    General BMW Discussions
    Hello, I was hoping someone could give me info on injectors that can be used on the m40b18 engine. I was wondering if a different engine uses compatible injectors because I have been searching for quite a while and I cannot find any m40 injectors for sale. Any help will be greatly...
  20. Advice on M40 Camshaft replacement

    General BMW Discussions
    Hi all, In short, my 316i e36 is making a horrible tapping noise, after many garage trips to various garages the general opinion is that it's the camshaft has had its day. Now my original plan was to just ditch the M40 and get an M50 engine put in (which may happen anyway still) but in the...
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