Search found 1893 matches

by Mike W.
Tue Apr 07, 2009 11:24 pm
Forum: Tech Forum
Topic: Advancing ignition timing....
Replies: 6
Views: 4924

Seems like advancing the timing more than factory spec used to do more good than it does now. I attribute it to the change in gasoline, which only vaguely resembles what it used to, at least here in California. But it's a seat of the pants thing, time it, crank in a little more advance and see how i...
by Mike W.
Sat Apr 04, 2009 10:30 pm
Forum: Tech Forum
Topic: relay under the clock?
Replies: 1
Views: 2159

If it's the one I'm thinking of, more behind the clock than underneath it, it should be the blower changeover relay, when you turn on the A/C, it cuts out the heater blower and switches in the A/C blower. It's a 5 pin relay with NO and NC contacts. The relay itself rarely fails, but the switch that ...
by Mike W.
Thu Apr 02, 2009 11:01 pm
Forum: Tech Forum
Topic: Sunroof conversion?
Replies: 7
Views: 5007

I would love to have a manual / crank version. Electrics are always finicky sooner or later. I'm not sure you couldn't convert one to manual, especially the 80-81 version. I'd try some junkyard work first, but it looks like the manual bits from an E21 would bolt right up in place of the motor assem...
by Mike W.
Wed Apr 01, 2009 8:20 pm
Forum: Tech Forum
Topic: Sunroof conversion?
Replies: 7
Views: 5007

From what my big blue BMW book tells me, it's the roof, not just a bolt on. I think at best you would be grinding off the old one and glueing on the new one. The frame attached to the roof under the headliner that is. I'm not even sure the panel is the same size.

In other words, a longwinded no.
by Mike W.
Fri Mar 27, 2009 9:16 pm
Forum: Tech Forum
Topic: How to do a Motronic 1.3 conversion for the M30? -Parts List
Replies: 1
Views: 2855

Mye28.com has much more on it. The link is more a B35 conversion, but it has some good stuff in it too. Search will bring up much more.

http://mye28.com/viewtopic.php?t=60306
by Mike W.
Fri Mar 20, 2009 2:43 pm
Forum: Tech Forum
Topic: pumping brakes increases idle
Replies: 11
Views: 8162

I have taken apart the AFM and adjusted the swiper arm, no change. I have installed a new O2 sensor, no change. But what does the O2 say when you're driving around? It may look goofy, but you've got to wire it up out of the hood, in the window, so you can watch it while you're driving. That will gi...
by Mike W.
Fri Mar 20, 2009 12:17 pm
Forum: Tech Forum
Topic: pumping brakes increases idle
Replies: 11
Views: 8162

I just tried the 'pump the brakes when stopped at idle' with no variation in idle speed, so, do I have a problem with my 79 528i? You may not be pumping fast enough. Regardless, if the brakes work ok, you're ok. I am still trying to solve my rough idle after engine reaches operating temp issue, whi...
by Mike W.
Fri Mar 20, 2009 12:13 pm
Forum: Tech Forum
Topic: Weak throttle body springs
Replies: 4
Views: 3481

Seems like early cars had two linear springs up top, but later ones didn't. I might be thinking of E21's though, since the intake is so similar in appearance, except for 4 vs 6 that is. If that's what you have, with 2 linear extension springs, just run down to the hardware store and buy a couple. On...
by Mike W.
Thu Mar 19, 2009 9:37 pm
Forum: Tech Forum
Topic: pumping brakes increases idle
Replies: 11
Views: 8162

swatterssr wrote:Interesting.
So, they been like this since new?
Yep, pretty much any vacuum boosted car is like this. E28's aren't due to having a hydroboost system running off the power steering pump, but that's the exception, not the rule.
by Mike W.
Thu Mar 19, 2009 9:35 pm
Forum: Tech Forum
Topic: Mystery(to a noob) part in the engine bay
Replies: 3
Views: 3570

No, it's there and there for a good reason. Granted, the car will run fine with or without it, but it's a painless smog device. It captures, then burns off, all the vapors trying to evaporate from the gas tank to the atmosphere and cause smog. Other than having to replace hoses every 15 or 20 years,...
by Mike W.
Tue Mar 17, 2009 12:58 pm
Forum: Tech Forum
Topic: Torque Front Shock Tower Nut?
Replies: 11
Views: 7419

It is possible to snap off hardened shock rods like Bilstein :shock:
Do I read that as you've done it? I'm surprised, I could see it more on E28's, which use a much smaller shaft/threads, but E12's are pretty beefy. Was it wailing on it for an extended time, or just a quick shot or what?
by Mike W.
Mon Mar 16, 2009 8:38 pm
Forum: Tech Forum
Topic: Power steering flush, capacity and method?
Replies: 3
Views: 2994

Holy crap, getting the pitman arm off the shaft of the old steering box was a huge ass-pain. Even though I've never tried, somehow I knew that. Which is why I'll swap out a box before I replace a leaky seal. Not that it's a fun job either, but less work overall. I know, not an option in your case, ...
by Mike W.
Mon Mar 16, 2009 8:35 pm
Forum: Tech Forum
Topic: Torque Front Shock Tower Nut?
Replies: 11
Views: 7419

Even though it serves a critical function, I'd say the torque is non critical. Meaning I just give it a quick shot with the impact wrench. It's a lock nut, and as long as you don't get it so tight you shear it off, or it's so loose there is play, it's good. And with the locknut, it'll stay that way.
by Mike W.
Sun Mar 15, 2009 9:04 pm
Forum: Tech Forum
Topic: making one e-12 from two......
Replies: 33
Views: 17512

Uh oh. Beware of mission creep. The pan I can understand if it's been repaired, but if you don't have oil pressure problems, then the next thing is rod bearings, then mains, then if you're that far, you might as well pull the head and go thru it, then is it new rings or new pistons... The pan is doa...
by Mike W.
Sun Mar 15, 2009 8:56 pm
Forum: Tech Forum
Topic: Hard starting - Fuel Injectors??
Replies: 2
Views: 2775

It could be leaky injectors, but it would manifest itself by acting flooded, since gas would have leaked down into the manifold while the car was off. Next time it happens, with the key off, pull the big plug off the ECU in the glove compartment. That will shut off the FI system. Then try to crank i...