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Thread: BMW e32 730i big six

  1. #1
    Join Date
    Jun 2017
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    1991 BMW E32

    BMW e32 730i big six

    Hello everyone, I'm new here and I'm proud owner of a E32 730i with lpg conversion,. Also I'm glad to be a member of this forum. This is my baby

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  2. #2
    Join Date
    Jan 2005
    Location
    Japan
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    54,655
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    11/88 E32 750iL+98 E36M3
    welcome to the forum. Can you show us some pictures of the LPG installation in engine bay and where you added the LPG tank?
    Shogun tricks and tips for the E32 series are HERE!

  3. #3
    Join Date
    Jun 2017
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    Bosnia and Herzegovina
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    My Cars
    1991 BMW E32
    I'm on road now. Soon will shot some pics

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  4. #4
    Join Date
    Jun 2017
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    Bosnia and Herzegovina
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    1991 BMW E32
    There's lpg. It's ecu controlled injection system

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  5. #5
    Join Date
    Jun 2017
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    Bosnia and Herzegovina
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    1991 BMW E32
    Some maintenance on suspension.

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  6. #6
    Join Date
    Jun 2017
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    Bosnia and Herzegovina
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    1991 BMW E32
    And more pics

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  7. #7
    Join Date
    Jun 2017
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    Bosnia and Herzegovina
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    My Cars
    1991 BMW E32
    Hello everyone. My e32 doesn't have a AC so I can get complete AC system really cheap. I have time to install everything but I don't know how to do the electric. Could someone please advise me. Tnx

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  8. #8
    Join Date
    May 2012
    Location
    Boynton Beach, Florida
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    1,526
    My Cars
    1990 735I (E32) M30
    I went into RealOEM and brought up your car. 1991 E32 Euro 730I LHD with Manual Transmission. Everything for your car is here. It the upper left you could click on Retrofitting. Then scroll down and there are a few places to click to see the A/C and the wiring of it.
    https://www.realoem.com/bmw/enUS/par...1-E32-BMW-730i
    1990 735I (Auto) E32 Feb 1990 to Present
    1996 Z3 Roadster (5 Speed) E36/7 Jan 1999 to Dec 1999
    1983 733I (5 Speed) E23 April 1983 to Feb 1990
    https://www.youtube.com/watch?v=2d4tHoHGaJo
    https://1drv.ms/v/s!Av20xCMMocSsyEpl...h_oOk?e=ekIcAT







  9. #9
    Join Date
    Jun 2017
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    Bosnia and Herzegovina
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    1991 BMW E32
    Ok thanks man. I'll try

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  10. #10
    Join Date
    Jun 2017
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    Bosnia and Herzegovina
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    My Cars
    1991 BMW E32
    Now it locks drivers door too. This metal bracket was broken. Some welding and it's good as new.

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  11. #11
    Join Date
    Jun 2017
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    Bosnia and Herzegovina
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    My Cars
    1991 BMW E32
    Now I've adjusted the valves and put some good oil in, torqued the banjo bolts a changed oil filter. Also transmission mounts were rubbish so I've put new one, and also seats were cracked so I've got new ones. Cheers

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  12. #12
    Join Date
    Jun 2017
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    My Cars
    1991 BMW E32
    Some leather seats maintenance. And new gear selector leather cover
    This seven series is absolute perfection, and M30 is brutal engine.

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  13. #13
    Join Date
    Jun 2017
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    1991 BMW E32
    Hm. My M30 is losing the coolant somewhere. There's no obvious leaks. Also carpets are dry so the heater core is ok (I think). Am I experiencing head gasket failure. Also there's no white smoke or oil in coolant. Car runs smooth and there's no power loss or something like that

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  14. #14
    Join Date
    May 2012
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    1990 735I (E32) M30
    Take off your oil fill cap and look inside the cap. If you've got while foamy bubbles you might have a head gasket problem.
    1990 735I (Auto) E32 Feb 1990 to Present
    1996 Z3 Roadster (5 Speed) E36/7 Jan 1999 to Dec 1999
    1983 733I (5 Speed) E23 April 1983 to Feb 1990
    https://www.youtube.com/watch?v=2d4tHoHGaJo
    https://1drv.ms/v/s!Av20xCMMocSsyEpl...h_oOk?e=ekIcAT







  15. #15
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    1991 BMW E32
    I've already done that. There's no head gasket failure symptoms. Engine runs great has a lot of power. There's no excessive pressure in hoses.

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  16. #16
    Join Date
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    1990 735I (E32) M30
    Trying to think where it might go. Maybe you had a large air bubble in the system and as it goes away slowly it appears that the coolant level is going down. Maybe you should bleed the system. There's a screw, 11mm I think on the thermostat housing. Can't think of anything else.
    1990 735I (Auto) E32 Feb 1990 to Present
    1996 Z3 Roadster (5 Speed) E36/7 Jan 1999 to Dec 1999
    1983 733I (5 Speed) E23 April 1983 to Feb 1990
    https://www.youtube.com/watch?v=2d4tHoHGaJo
    https://1drv.ms/v/s!Av20xCMMocSsyEpl...h_oOk?e=ekIcAT







  17. #17
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    1991 BMW E32
    I've bled the system. I'm not a mechanic but I do know great deal about my car and all repairs with it. This is really enigma. But can't be so difficult to detect a leak. Only thing that I didn't consider is that head gasket has very small rupture and it leaks inside combustion chamber but not too much for white smoke to form

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    Last edited by Red 7even; 09-24-2017 at 04:28 PM.

  18. #18
    Join Date
    May 2012
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    1990 735I (E32) M30
    I'm not a mechanic either, so we're both trying to figure out where the "invisible coolant" is going. No water on the floor.....ever?
    1990 735I (Auto) E32 Feb 1990 to Present
    1996 Z3 Roadster (5 Speed) E36/7 Jan 1999 to Dec 1999
    1983 733I (5 Speed) E23 April 1983 to Feb 1990
    https://www.youtube.com/watch?v=2d4tHoHGaJo
    https://1drv.ms/v/s!Av20xCMMocSsyEpl...h_oOk?e=ekIcAT







  19. #19
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    1991 BMW E32
    I'll remove all of coolant and remove all hoses and radiator for inspection. Can't be so hard to find a leak. If it gets worse I'll remove heater core and it's hoses. It's not a normal car it's hunted. BTW leak is not big approx 2l per 2000-3000km so if a radiator has a leak it will not be obvious and it will vaporize before being detected

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  20. #20
    Join Date
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    89'750iL,98'740iL,00'M5
    Ive seen some of these heads develop a crack near the spark plug area, heat from the exhaust would evaporate the coolant before you ever saw it. Had this guy searching for this for months. Look around the head especially on the exhaust side. Only thing I can think of

    BMW 7er Website www.7er.com
    1989 BMW 735i Schwarz (sadly, sold) // 1989 BMW 750iL Cirrusblau Metallic // 1998 BMW 740iL Oxfordgrün Metallic // 2000 M5 Carbon Schwarz ///

  21. #21
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    1991 BMW E32
    Gotcha. After some time I've found the leak. The car wasn't on operating temperature so coolant couldn't evaporate quickly. I'll need new radiator. BTW today I've got new shock absorbers

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  22. #22
    Join Date
    Oct 2011
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    Denver, CO
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    1990 535/5
    Glad you found your leak! Was about to suggest the overflow line connection as i have had a very small intermittent leak on my M30 powered e34

    Also, there are two drains for the heater box which discharge any leak on either side of the transmission, so a heater core leak really shouldn't soak the carpet (had one of those leaks as well)

  23. #23
    Join Date
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    Congrats on you find. You wanna talk heater core leaks?? I had a 1983 E23 733I (5 speed) for seven years. In all that time my worst problem was a combination of heater core leaking and sunroof drain holes clogging. Final two years of that car my carpets were always soaked. Sometimes just water, and sometimes it tasted sweet like antifreeze. When I traded it in, in 90 for this E32, the salesman bought it. He said he knew a great mechanic at the dealership who could fix the problem. I never went back to that dealership, but I can guarantee it was never fixed. That car was haunted. If I wanted dry carpets for more than a week, I had to make sure I parked the car on a bit of an incline with the front end a little higher than the rear. Great memories.
    1990 735I (Auto) E32 Feb 1990 to Present
    1996 Z3 Roadster (5 Speed) E36/7 Jan 1999 to Dec 1999
    1983 733I (5 Speed) E23 April 1983 to Feb 1990
    https://www.youtube.com/watch?v=2d4tHoHGaJo
    https://1drv.ms/v/s!Av20xCMMocSsyEpl...h_oOk?e=ekIcAT







  24. #24
    Join Date
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    1991 BMW E32
    Tnx. So far so good. I don't have time to replace the radiator. Here are some pictures of my car. Sunny day and some washing. It's a daily driver. Enjoy

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