Search found 122 matches

by 528i-1981
Wed Nov 20, 2019 5:34 am
Forum: Tech Forum
Topic: Cheap flasher unit replacement
Replies: 1
Views: 12

Re: Cheap flasher unit replacement

I'm impressed by this but also I think the AC diode repair-in-the-Fry's-parking-lot is worth an explanation as well.
by 528i-1981
Sat Nov 09, 2019 8:18 am
Forum: Tech Forum
Topic: Exhaust Manifold and Thermal Reactors
Replies: 4
Views: 116

Re: Exhaust Manifold and Thermal Reactors

Yes, Adika, welcome. BTW, Maybeillbuyit's project posting is in the Gallery, which you'll see on the board index if you back out of the Tech Forum. If you don't go with headers to replace the reactors, you have a couple of options with manifolds. The later E12 528i manifold (single 2" pipe) will wor...
by 528i-1981
Thu Oct 31, 2019 4:42 pm
Forum: Tech Forum
Topic: Whelp...it looks like I may have a spun bearing!
Replies: 3
Views: 101

Re: Whelp...it looks like I may have a spun bearing!

Terrible luck for you! You hardly had time to enjoy driving it. At least it’s autumn!
by 528i-1981
Wed Oct 23, 2019 4:37 am
Forum: Tech Forum
Topic: Motronic 1.3 conversion
Replies: 26
Views: 805

Re: Motronic 1.3 conversion

Sounds and looks great. Thanks for taking the time to make these (and other) posts, too. I've learned so much, it was like an online adult-ed class on E12s. -E
by 528i-1981
Sat Oct 05, 2019 6:17 am
Forum: Tech Forum
Topic: Motronic 1.3 conversion
Replies: 26
Views: 805

Re: Motronic 1.3 conversion

It looks like the pictures Joe posted feature the E21 runners with an elegant bracket for the FPR.
by 528i-1981
Thu Oct 03, 2019 4:51 pm
Forum: Tech Forum
Topic: Motronic 1.3 conversion
Replies: 26
Views: 805

Re: Motronic 1.3 conversion

I think I read that at the fuel rail at 6000 rpm, something like 15 g of fuel per second is consumed, which is less than 20 ml or 2/3 oz. The volume of the whole fuel system from the pump forward is way bigger than that and at 40 psi the delta P should be really small anywhere in the system. Maybe L...
by 528i-1981
Tue Oct 01, 2019 9:58 am
Forum: Tech Forum
Topic: Motronic 1.3 conversion
Replies: 26
Views: 805

Re: Motronic 1.3 conversion

Looks great and I've learned a lot following this project - thanks Lock. That rad tube photo is instructive. I'll be sure to check mine next time I have stuff apart.
by 528i-1981
Thu Sep 26, 2019 5:51 am
Forum: Tech Forum
Topic: Sticky front right brake
Replies: 5
Views: 182

Re: Sticky front right brake

I’m curious, would this work?: dismount only the sticky caliper, leaving the free caliper on the rotor to constrain the free piston. Shouldn’t this result in more available system pressure to push on the sticky piston? It should at least provide more time to work the sticky piston out before the fre...
by 528i-1981
Mon Sep 23, 2019 4:38 am
Forum: Tech Forum
Topic: Motronic 1.3 conversion
Replies: 26
Views: 805

Re: Motronic 1.3 conversion

Nice progress, Lock. I especially like the fuel pressure gauge mounted on the fuel rail - that worked out nicely.
by 528i-1981
Tue Sep 03, 2019 1:58 pm
Forum: Tech Forum
Topic: We did it: E28 subframe swap...
Replies: 7
Views: 275

Re: We did it: E28 subframe swap...

Nice work! This is a terrific resource - I think there's a guy in Brazil contemplating something similar (i.e. and E28 rear subframe bolt-up) for his E12. The pictures don't appear to have make it, unfortunately. You need to host them elsewhere and link to them. I use this: https://imgbb.com/ It giv...
by 528i-1981
Mon Aug 26, 2019 6:09 pm
Forum: Tech Forum
Topic: Throttle body heater hose delete
Replies: 10
Views: 297

Re: Throttle body heater hose delete

How many miles on your M30, Lock? The disintegration is probably more of an age thing, but I _think_ a higher-mileage car, where the coolant and it's anti-corrosive payload is circulating more frequently, might fare a little better if the coolant was religiously changed. I worry about mine now. Ah s...
by 528i-1981
Sat Aug 24, 2019 5:16 am
Forum: Tech Forum
Topic: Throttle body heater hose delete
Replies: 10
Views: 297

Re: Throttle body heater hose delete

Lock, you should consider building a gallery on the Motronic conversion, something like Dave (maybeillbuyit) did with his rehab.
by 528i-1981
Tue Aug 20, 2019 5:20 am
Forum: Tech Forum
Topic: 1978 530i A/C Oil charge
Replies: 6
Views: 205

Re: 1978 530i A/C Oil charge

There are inexpensive injectors (basically cylinders with a short hose and a stopcock) you can attach to the service line through the manifold gauge set. You use these using the low side service port, similar to introducing refrigerant. Sounds like things are well under control.
by 528i-1981
Mon Aug 19, 2019 7:10 pm
Forum: Tech Forum
Topic: 1978 530i A/C Oil charge
Replies: 6
Views: 205

Re: 1978 530i A/C Oil charge

I have the Bosch 0 140 903 506 axial compressor. The BMW service manual specifically says that the compressor plug should not be removed with refrigerant in the circuit, and that the circuit must be emptied before opening. I took our Bavarian brethren at their word and slavishly complied, so I hones...
by 528i-1981
Mon Aug 19, 2019 4:51 am
Forum: Tech Forum
Topic: 1978 530i A/C Oil charge
Replies: 6
Views: 205

Re: 1978 530i A/C Oil charge

Use a fluid transfer cylinder or a syringe with tubing and use the inspection hole. When it dribbles out of the hole, you're done. Keep some rags handy, this can get messy especially if your car isn't on a lift. The total system volume of oil is what's important. The compressor is lubricated by oil ...