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  1. BMW E30 318is & 318i

    BMW E30 318is & 318i

  2. whats the difference between M44 and M42 ?

    General BMW Discussions
    just wondering whats different between the M44 and the M42, i know the M44 has a bit more power but what are the visual diffrences between them ?
  3. m42 exhaust manifold

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hey bit of a newbie here, Ive got a 318is, and ive been having a bit of a pain in the ass with my exhaust manifold. It had a nasty crack so i had it welded up for me for a sum of £200, i was missing the exhaust bracket at the time so whent ahead and bought the kit from bmw. The brackets been on...
  4. E46 M42 318 engine smoking

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi All, I have been having a bit of a run of bad luck with my car. Earlier this year I had to have my Vanos system repaired, chain had jumped, guides were smashed, bit of a disaster. It was in at Main agents and the costs started to rack up. Every time they told me about one part of the job it...
  5. 1995 E36 318 M42 inlet manifold part missing?

    BMW 3 Series Forum - Technical Talk on the BMW E21
    I know the boots split between the air box and intake (will replace one day!) but just wondering what's missing where the short section of pipe is blocked with a bolt. Presumably it's a breather but where should it go? Thanks in advance.
  6. 1995 e36 318is m42 hesitation (FIXED)

    BMW 3 Series Forum - Technical Talk on the BMW E21
    as above i have this hesitation from when i bought the car,you put your foot down it does sweet fa,but if you hold it there it will start to pick up. well reading up on this i thought it would be the afm. so i changed tps + lambda sensor previous owner changed them. i changed the afm from a...
  7. 1994 E36 316i - M42 after driving rough idle and stalling. help

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi all I did an engine swap from M40 to M42 had the engine striped and sent the engine for rebuild , after I got it back mechanicks fucked up timing - had them to fix it , and the car ran sweet. Its after driving I noticed that when i kick clutch in idle goes bonkers jumping randomly and...
  8. 1997 e36 316i - fitting a m42 engine

    BMW Engine Conversions
    Hi guys im buying a 1997 e36 316i coupe for for a drifting/track day car and has a m42 engine to go with it.How can i fit this engine as iv seen one here that m42 was fitted to the older cars and m44 to the newer cars with ewsII.Could i just get another wiring loom and ecu from a m44 car and...
  9. 1993 E36 318is M42 heavy on fuel

    BMW 3 Series Forum - Technical Talk on the BMW E21
    I travel 36 miles to work each day. Today I have done around 50 miles and its took £20. Its been heavy on it for a few weeks or a month maybe and wonder what may be causing it. Unsure of age of fuel filter so will need to change that but will I see a decent gain from that? Could my exhaust...
  10. 1996 E36 318is M42 profile gasket leaking when engine stops

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi. I had the head gasket and thermostat changed in December now since then the car has a whistling noise, and an oil leak. The leak is probably the most worrying thing. It has taken me a while to find. It looks like the profile gasket is leaking. But when the engine is running it's fine...
  11. Cleaning early e36 318is (m42) Idle Control Valve

    Technical Guides for the E36, E30 and E21
    Not a guide as such, more like a heads up to anyone who owns a early M42 engined e36. The revs have been going crazy the last few days on my 1992 318is. Sometimes it's fine, others it stalls and other times the revs rise and fall from anything from 400rpm to 1700rpm. I found a guide on bimmerdiy...
  12. E36 318is engine changed from a M44 to M42 but car won't start

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi Thanks for an excellent forum. I have a bmw 318is M44 E36 and i changed the engine to a M42 but now the car won't start. The car is cranking but not starting. The crank sensor on the M44 sits on the engine block whereas on the new engine, (M42) the crank sensor sits on the dampner...
  13. 1992 E36 318is m42 wont start!

    BMW 3 Series Forum - Technical Talk on the BMW E21
    hi am new to the site and after abit of advice! I was driving the other day when my car cut out and wouldnt start. it over revved slightly befor loosing all power. the recovery mechanic who couldnt really seem bothered said it had lost its compression. there was no noise or bangs or smoke just...
  14. 1993 E36 318is (M42) engine misfire and knock

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi all, This is my first post on these forums and I wish it was on a happier note. I have just had my timing chain, tensioner, rails and water pump changed on my 318iS. 5 days later it has developed quite a mis-fire and top-end knock when I rev it. Does this sound like a valve issue and if so...
  15. 1995 E36 318is - Does M42 engine have an automatic tensioner on the alternator belt?

    BMW 3 Series Forum - Technical Talk on the BMW E21
    I have read that the drive belt tensioner on M44 engines is hydraulic and therefore self tensioned. Is this the case with the M42 engine as mine is chirping and i'm hoping it is just a case of tightening it manually......
  16. 1992 E36 318is - head gasket dying (or dead), really worth it?Replace M42 with M44?

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi everybody, it's now officiel, my headgasket is dead, the car still runs but lubricated with a mixture of oil and water. it's a 1992 318is M42 with around 85,000miles. which I bought £700 6 months ago. So the question is: is it really worth it to change the headgasket myself? knowing that...
  17. 1997 318i e36, m42 camshafts in a m44 engine?

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi I have lust been robbed bought some camshafts off ebay. the man said thay where m44 camshafts after having them reprofiled now i find thay are m42 will thay fit on m44 engine? I dont know if i will get the same performance. should i just sell them and get the m44 camshafts if so is an...
  18. Aftermarket Exhausts for 1995 E36 m42 318iS

    BMW Tuning Forum
    My standard pipe is a bit noisy due to rattly baffles,although it isn't blowing at all yet,been looking at aftermarket ones,performance etc but don't want to spend £3-400 on a system when the car only cost me a bargain £1000,only 'cheap' one i can find on the market is a sportex but i'm told...
  19. 1995 E36 318is (M42) heater burning smell

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Seems to vary this one - ive been getting a burning smell through my interior heater. If I put it on the next blower speed up it goes. Basically if I play around with the heater it disappears. Any ideas where it would be coming from???
  20. 1995 E36 318is (M42) fuel usage doesnt seem right....

    BMW 3 Series Forum - Technical Talk on the BMW E21
    The engine runs sweet as a nut. Second time I put fuel in it, £20 lasted be about 175 miles which is fine. Car idles at 750rpm smoothly from icy cold start to nice long 40 minute run. Yesterday I brimmed it (£48) and zero'd the clock. Having now covered 80 miles, it is already at 3/4 on the...