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Then is the crank pulley solidly bolted to the crank hub?

I've heard of dampeners separating, not on BMWs, but I suppose it's possible. So crawl under there and see if it feels tight. Work a big screwdriver in there and try to wiggle it. Look for wobble while it's idling. A bit of a PITA for troubleshooting, but try pulling the belts, or at least loosen th...

I'd look to the sending unit rather than the gauge. Ohm it out. IIRC it's supposed to be something like 0-82 depending on the fuel level. Take it out and make sure the float moves freely and watch the readings when you tilt it up and down, it should change. You can't see resistance, so looking at th...

A Euro 728 would have a higher compression 2.8 engine, probably 9:1 instead of the 8.3:1 of a US spec 530i. About the same power but a touch less torque. The euro car might have a hotter cam and would have a different curve on the distributor, and of course would not have come with all the smog equi...

Agreed, the old swashplate compressor is great, smooth, quiet and effective. And yes, the wingcell on my E28 was always rough, noisy and short lived.

Apparently the much newer Sanden compressors are even better, but I've no experience with them personally, just what my E28 friends tell me.

I have to point the vent away from my face because it gets too cold. That's what the thermostat operated by the temp dial is for! Which is also one thing that drives me nuts about newer cars, they run the A/C full blast all the time, then reheat to control temp. Except reheat often doesn't work lik...

I haven't heard anything lately, but last I knew they were in the 1,000-1,200 range. I just looked and there's a couple on ebay right now asking 1400 and 1700. Yours is probably a bit more desirable than most as I'm assuming it has the speedo drive installed in it. They're desirable both for convers...

Should it be a grease suitable for elec contacts? Any key questions to ask of them? It should be, grease is generally non conductive. Only question I might have is how thick is it. Intended application might answer that, for instance wheel bearings use a heavy duty grease. Disc brake wheel bearing ...

A quick search suggests dielectric grease isn't generally used as a lubricant in the conventional sense. But if synthetic, it might be. Pricey, but here's a clear grease, though I don't know how thick it is or isn't, but you might be able to search thru Q and A. Weird, I can't seem to post a link. S...

I used white lithium grease when I rebuilt mine. It's a relatively light grease, meaning thin, and since the problem is too much friction/stiction, I wanted something light. It's possible, but I don't recall any problems with light transmission thru it. I think drip point is around 200-230+ so that ...

It should start pretty quick. When I injected my E3, using 530i parts, it would start, very predictably on the 6th compression cycle, or second revolution. I think my E12 528i was the same. Don't forget about injectors, they have to be clean and hold fuel pressure. The fuel pump needs to hold pressu...

What sort of resistance? Remember the fuel pump, thru it's windings, does bridge hot and ground, probably at something like 4 ohms.

Troubleshooting. First step, disconnect both pumps and see what you get then.

I second the idea of using the largest parallel flow condenser. The stock 528i one isn't bad, a definite improvement on the earlier 530i ones, but not as good as parallel flow. Obviously make sure the aux fan up front is working well too. The stock compressor is just fine, the system is limited by t...

canada karl wrote: ↑Fri Aug 05, 2022 12:01 pm If I remember correctly when I had a shop install the 5 speed in the 530i they took the speedo gear out of the 4 speed to use. Does that sound right to you?

Yes it does. The parts are the same.

Mye28.com is the go to E28 site. I'm very active there too. No start could be a bunch of different things, generally not expensive as long as the timing belt hasn't broken. eta's are slow, but torquey and the 5 speed helps. Wouldn't be a bad pickup at all especially as E28 prices are escalating. A 5...