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Thread: What did you do to your e21 today?

  1. #5076
    Join Date
    Mar 2013
    Location
    Santa Rosa, CA
    Posts
    1,631
    My Cars
    1981 320i silver
    When my car has been sitting a while, some fluid obviously leaks. I pump the clutch pedal many times and pressure will come back. And it works.
    Maybe the slave is leaking a little. Or maybe both the clutch master and slave should be replaced.

  2. #5077
    Join Date
    Nov 2007
    Location
    Sacramento, California
    Posts
    4,704
    My Cars
    1980 BMW 320i E21 M10B18

    Cool

    Quote Originally Posted by TheNeek View Post
    I tried to drive it.
    Clutch doesn't disengage - Hoping it just needs bleeding
    Intake boot for the M42 has a rip in it big enough to fit a baby's fist through
    Fuel leak from the high pressure pump to the filter.
    Had to push it back into my mom's garage.
    I had that happen to me once, Clutch would not engage bled the the back wheel cylinders then the front calipers and last the clutch slave and the clutch came back up strong, air in the lines would be my first assumption as well. I bought a power brake bleeder and use Dot 4, 15 to 20 psi does the whole hydraulic system, no need to pump the brake petal or clutch petal, open the valves when solid fluid appears in the clear line after a few seconds close and on to the next one.

    Randy
    Last edited by 320iAman; 10-01-2022 at 12:16 PM.

  3. #5078
    Join Date
    Jun 2011
    Location
    Philippines
    Posts
    135
    My Cars
    e21 320/6, e30 325e
    Sanded, primed, and painted:

    1. Coilover rear springs @500 lbs/inch rate to be paired with front @360 lbs/inch
    2. Part of front strut bar

    20221007_155726.jpg

  4. #5079
    Join Date
    Jul 2010
    Location
    San Jose, California
    Posts
    1,720
    My Cars
    E21 320i, E30 325i
    Quote Originally Posted by amarino View Post
    Wow no posts in here since March.

    From my spreadsheet keeping track of maintenance, I last changed the oil 3 years ago in September 2019. Car mostly sits outside my dad's place and he tries to drive it every other week or so to keep it working. Then I show up for a weekend or week and drive it around, then it sits again.

    Did an oil and filter change and minor tune up with new spark plugs, distributor cap and rotor. I took a sample of the old oil (Castrol GTX High Mileage 10W-40) to send to Blackstone Labs (https://www.blackstone-labs.com/) for analysis. Will post the results.

    I was not able to get WR9DS spark plugs. Local foreign auto parts store said that model was discontinued, and it seems to be out of stock everywhere online. So I ended up going with Bosch WR9DC+ spark plugs. They came pre-gapped to .028/.029 so I left them as is.

    For oil this time I went with Liqui Moly LM2043 10W40 MoS2 Anti-Friction Engine Oil: https://www.fcpeuro.com/products/10w...ui-moly-lm2043
    Oil filter is Mahle OC 25.
    Bosch Distributor Rotor (04038)
    Bosch Distributor Cap (03212)

    Oil had an interesting color brand new out of the bottle. It must be the MoS2 additive. Lets see how it looks in 1-2 years when I remember to change it next.
    Attachment 708689

    Just got the results from the Blackstone Labs Oil Analysis. They found high levels of potassium which indicate coolant. I think I have just the generic green AutoZone coolant right now. Will probably check it out in a few weeks when I go down for the SoCal Vintage BMW show. Maybe just a borescope camera in the spark plug holes to see if any cylinder show signs of being "too clean". Full report below:

    2022-10-20_140828.png
    '81 E21 320i / '90 E30 325i / '̶9̶2̶ ̶E̶3̶4̶ ̶5̶2̶5̶i̶t (sold) / '15 Toyota XW30 / '̶̶8̶0̶ ̶E̶2̶1̶ ̶3̶2̶0̶i̶A̶ (sold)

  5. #5080
    Join Date
    Nov 2007
    Location
    Sacramento, California
    Posts
    4,704
    My Cars
    1980 BMW 320i E21 M10B18

    Cool

    Did adjustment of front wheel bearings , re-grease, and tire rotation.
    Raise the front end take off the front tires and remove and hang the calipers, I used a metal coat hanger.
    Remove the screw 5 mm that secure the rotor to the hub
    Remove the cotter pin that locks in the 24 mm crown nut and remove the crown nut.
    The hub will now slide out, re-grease the bearings and make sure there enough grease in the hub itself so it contacts the shaft.
    Put hub back in and attach the rotor with 5 mm screw-make sure its very tight and put back in the crown nut with its washer.
    Rotate the rotor as your tightening the crown nut stop tightening when the rotor stops from turning-sets everything in place no slack, loosen the crown nut now and rotate the rotor while tightening to 2 ft lbs- I used my in-lbs torque wrench when at 24 in - lbs 2 ft lbs stop and put the cotter pin in, if its blocked by the crown nut back it off till the hole of the shaft can take the cotter pin and insert and spread it out, put back in the cup that covers it if one is there and your done , put back on the caliper and tire and torque both to oem settings.

    I am using Febi bearings and these have been the best so far including SKF service, a while back I bought a set of Febi front bearing with grease seal, bearings, and cotter pin I paid around $24 for 2 sets, now its like $24 for one side--- "shrinkflation" , you get less for more money.

    After doing the bearing adjustment , I rotated the tires back to front , front to back.

    Randy
    Last edited by 320iAman; 10-20-2022 at 06:53 PM.

  6. #5081
    Join Date
    Nov 2007
    Location
    Sacramento, California
    Posts
    4,704
    My Cars
    1980 BMW 320i E21 M10B18

    Cool

    Changed out the differential fluid with 1 qt of SAE 80/90 and checked the bolt tightness of the face plate to the 3rd member housing. Topped off transmission fluid with Pennzoil synchromesh fluid.


    Randy
    Last edited by 320iAman; 10-21-2022 at 07:22 PM.

  7. #5082
    Join Date
    Mar 2021
    Location
    Napa, CA
    Posts
    166
    My Cars
    95 540i/6

    Parts and more Parts

    Prep and paint ongoing and ongoing...

    IMG_6971.jpg IMG_6972.jpg
    95 540i/6 HE53
    00 528it/5 DP53
    01 530i/5 DT53
    83 320i M10

  8. #5083
    Join Date
    Nov 2007
    Location
    Sacramento, California
    Posts
    4,704
    My Cars
    1980 BMW 320i E21 M10B18

    Cool

    Just Bought 4 M22 x 1.5 mm drain plugs. I bought these for the two differentials or 3rd members I have. The OEM 3rd member drain and fill plugs have an allen hex key in them, this upgrade will make the process of draining and filling the 3rd member much easier. I already changed the OEM allen hex key fill/drain plugs on the transmission to the newer bolt style making it much easier to fill,drain, and top off the transmission. 4 with washers for $16, last set at this price.

    s-l1600.jpg

    Randy
    Last edited by 320iAman; 02-16-2023 at 12:09 PM.

  9. #5084
    Join Date
    Aug 2001
    Location
    NC
    Posts
    2,126
    My Cars
    E30M3,318is,318i,E21320
    Quote Originally Posted by 320iAman View Post
    Just Bought 4 M22 x 1.5 mm drain plugs. I bought these for the two differentials or 3rd members I have. The OEM 3rd member drain and fill plugs have an allen hex key in them, this upgrade will make the process of draining and filling the 3rd member much easier. I already changed the OEM allen hex key fill/drain plugs on the transmission to the newer bolt style making it much easier to fill,drain, and top off the transmission. 4 with washers for $16, last set at this price.

    s-l1600.jpg

    Randy

    Well look at that. Guess I never thought to just look for some. Last time I worked on mine I cut off some old wheel lug bolt heads and welded them into the plugs to convert them to hex. Works like a charm for diff and trans.
    88 M3
    91 318is
    91 318i
    83 320is
    08 X3 3.0si

    "If it flys, floats, or f*cks, rent it!"

  10. #5085
    Join Date
    Nov 2007
    Location
    Sacramento, California
    Posts
    4,704
    My Cars
    1980 BMW 320i E21 M10B18

    Cool

    Yes, The newer style transmission drain/fill BMW hex bolts are available had them installed for years, I paid ~ $8 ea. I just seen these M22 x 1.5 mm yesterday on eBay. Here is the seller has two sets of two left. $12 a set. For $12 one differential is easier to drain /fill with standard tools.

    s-l1600.jpg

    https://www.ebay.com/itm/18574940806...Bk9SR8aMgoLMYQ


    Here is a set of 10 for $18.50

    s-l1601.jpg

    https://www.ebay.com/itm/26578050770...3ABFBMmsTUg8xh




    Randy
    Last edited by 320iAman; 02-17-2023 at 11:40 AM.

  11. #5086
    Join Date
    Sep 2017
    Location
    Salt Lake City, Utah
    Posts
    39
    My Cars
    E21, F22, G01
    Replaced the 40-year old injectors and lambda sensor (no idea how old it was)

    IMG_0874 (2).jpg
    Attached Images Attached Images

  12. #5087
    Join Date
    Nov 2007
    Location
    Sacramento, California
    Posts
    4,704
    My Cars
    1980 BMW 320i E21 M10B18

    Cool

    Bought a pair of these to put in my backup Getrag 245 5 sp transmission from Pelican Parts ( 27-11-1-226-798-BOE)-ships today ~$23 for two. The allen hex plugs eventually get loose being thin walled and its more of a task to take them in and out-till they strip out, they are 17 mm allen wrench or 17 mm hex bit size by the way, this way I can use a 1/2 " socket with 1/2 " socket wrench making the job a lot easier. I have these installed on my Getrag 245 running in the car right now.

    unnamed.jpg

    Randy
    Last edited by 320iAman; 02-20-2023 at 11:22 AM.

  13. #5088
    Join Date
    Feb 2019
    Location
    Northfield, VT
    Posts
    103
    My Cars
    1981 320i
    Ran it in a night time TDS rally here in Vermont.

  14. #5089
    Join Date
    Nov 2007
    Location
    Sacramento, California
    Posts
    4,704
    My Cars
    1980 BMW 320i E21 M10B18

    Cool

    Differential fill/drain plugs came in. I have two 3.91 open differentials , one is rebuilt- like new and the other on the car.

    IMG_20230221_112714_019.jpg Stock with Allen Hex key leftIMG_20230221_112801_702.jpg Stock Left IMG_20230221_112918_782.jpg same length of thread IMG_20230221_113023_171.jpg 4 with washers.

    Randy
    Last edited by 320iAman; 02-21-2023 at 02:48 PM.

  15. #5090
    Join Date
    Jun 2016
    Location
    Austin, TX
    Posts
    1,585
    My Cars
    1978 323i
    Drove to work again Checked the oil, perfect. Needs an alignment, slight left pull on the highway. Has a 55 mph shimmy
    Last edited by cgifool; 02-21-2023 at 04:13 PM.

  16. #5091
    Join Date
    Nov 2007
    Location
    Sacramento, California
    Posts
    4,704
    My Cars
    1980 BMW 320i E21 M10B18

    Cool

    Transmission fill/drain plugs came in. Will install in my backup Getrag 245 5-Speed to change out the 17 mm Allen hex plugs.

    IMG_20230222_125334_646.jpg


    Randy

  17. #5092
    Join Date
    Nov 2007
    Location
    Sacramento, California
    Posts
    4,704
    My Cars
    1980 BMW 320i E21 M10B18

    Cool

    Bought a set of these NGK Iridium IX Spark plugs BPR5EIX 6597 made for BMW 320i for $30 plus change. Going to run these a while and see how they perform. It is said they have more complete combustion and require lower voltage to due so and last up to 50,000 miles maybe even more as they wear less than platinum or double platinum.

    NGK Iridium 6597 BPR5EIX.jpg

    Randy
    Last edited by 320iAman; 02-22-2023 at 11:15 PM.

  18. #5093
    Join Date
    Nov 2007
    Location
    Sacramento, California
    Posts
    4,704
    My Cars
    1980 BMW 320i E21 M10B18

    Cool

    Here is a listing from NGK that fits 1980 BMW 320i E21 1.8L, 6597 is still available, looks like being replaced with more expensive version, 95525.

    NGK.png

    Randy
    Last edited by 320iAman; 02-26-2023 at 02:27 PM.

  19. #5094
    Join Date
    Feb 2002
    Location
    Austin, TX
    Posts
    908
    My Cars
    G05, F15, E46, E21 (x2)
    ‘82 320iS. Replaced starter with smaller lighter unit. Observed that WUR filter was clean. Reassembled and engine would not run…start, die, start, die…doh, left brake booster hose off. Reinstalled booster vacuum hose and thought for sure it would now run, well it did until the fuel pump fuse blew…what???? Replaced fuse, same result. Disassembled all wiring to check for shorts/errors, including ground at manifold support. All looked good. Reconnected all wiring to WUR, starter, ground, and the hot start diaphragm…someone has to tell me what that dang thing does...there is just one port, how can it do anything? Replaced fuse, would not start. Jumped fuel pump relay, pumps running, fuse warm but not hot. Got engine started…I think it was flooded. Replaced fuel pump relay and seems to be running fine.

    BTW, the smaller starter requires you make a pigtail for the solenoid/starter trigger wire (or whatever you call it). The spade terminals on the starter are super short, and thus not reliable.

    Edit/add: Ok, so the hot start diaphragm is really a vacuum switch…can’t be anything else. More testing and the fuel pump fuse still gets hot a blows. Starting a new thread.
    Last edited by DavidF; 02-28-2023 at 05:42 PM.

  20. #5095
    Join Date
    Jun 2016
    Location
    Austin, TX
    Posts
    1,585
    My Cars
    1978 323i
    Today after a good 30 minutes in traffic, only a quarter mile or so from home, my 2-year-old cheap chinese fuel pump started making noisy noises. About halfway home from there it sputtered a few times, the engine cut out a couple times, and finally died not 3 blocks from home. Lucky break considering how much I've been driving it all over town the last few weeks.

    Oh well. I knew it was a risk when I bought that pump. Parked it and put the cover on, guess I'll get it towed this weekend.

    After a relatively short search online I ordered an NOS Bosch pump from Greece. Looks like they're NLA from the usual suppliers stateside.

  21. #5096
    Join Date
    Oct 2022
    Location
    Raleigh NC
    Posts
    64
    My Cars
    1983 320i S
    Is this an in tank pump or outside pump? I've replaced both. Outside pump was Bosch, readily available in USA. In tank pump was replaced with just a generic pump added to existing assembly.
    Both work fine.

  22. #5097
    Join Date
    Jun 2016
    Location
    Austin, TX
    Posts
    1,585
    My Cars
    1978 323i
    Quote Originally Posted by Bill5Star View Post
    Is this an in tank pump or outside pump? I've replaced both. Outside pump was Bosch, readily available in USA. In tank pump was replaced with just a generic pump added to existing assembly.
    Both work fine.
    My early car has no in-tank pump. This is the outside one, which is different between early and late cars, part # 16121118344

    Looks like this one: https://www.pelicanparts.com/More_In...80-254-982-INT

    I did find it here, but the photo doesn't match the pump so I was suspicious and didn't go for it.

    https://www.bimmerworld.com/Intake-F...121118344.html

  23. #5098
    Join Date
    Nov 2007
    Location
    Sacramento, California
    Posts
    4,704
    My Cars
    1980 BMW 320i E21 M10B18

    Cool

    Bought a couple of New Fuel Filters, 2-$26/free shipping. Purolator filters ( air/ fuel ) are original equipment for these cars.

    s-l1600.jpgs-l1600a.jpg

    Randy
    Last edited by 320iAman; 03-02-2023 at 11:38 AM.

  24. #5099
    Join Date
    Nov 2007
    Location
    Sacramento, California
    Posts
    4,704
    My Cars
    1980 BMW 320i E21 M10B18

    Cool

    Quote Originally Posted by cgifool View Post
    My early car has no in-tank pump. This is the outside one, which is different between early and late cars, part # 16121118344

    Looks like this one: https://www.pelicanparts.com/More_In...80-254-982-INT

    I did find it here, but the photo doesn't match the pump so I was suspicious and didn't go for it.

    https://www.bimmerworld.com/Intake-F...121118344.html
    Either will work, newer style ones have replaceable shutoff valves otherwise they are the same in psi and gph ect. You would need an acorn or cap nut M12x1.5mm(many around) and a couple of sealing washers for the newer style ones. I see a bosch one for $68 brand new that will work form FCP Euro..

    Randy
    Last edited by 320iAman; 03-02-2023 at 12:17 PM.

  25. #5100
    Join Date
    Jun 2016
    Location
    Austin, TX
    Posts
    1,585
    My Cars
    1978 323i
    Quote Originally Posted by 320iAman View Post
    Either will work, newer style ones have replaceable shutoff valves otherwise they are the same in psi and gph ect. You would need an acorn or cap nut M12x1.5mm(many around) and a couple of sealing washers for the newer style ones. I see a bosch one for $68 brand new that will work form FCP Euro..

    Randy
    Wow, good to know! Too bad the one I ordered has already shipped, but I'll keep it in mind for next time... Hopefully not less than 4 years from now.

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