Messages

1

Engine + Driveline / Can a M42 motor come out of time?

« on: February 19, 2009, 08:23:40 PM »

Fuel pump pushes 40 lbs constantly from the pump and all the way to the fuel rail. Im super bummed. I cant seem to find out what is wrong with this motor.

2

Engine + Driveline / Just changed my O2 Sensor

« on: February 12, 2009, 01:10:18 PM »

check the forums
if you dont m ind doing some splicing, a bosch 3 wire ( as mine uses) is about $30 just had to change the plug ins from std BMW to crimp on bullets ( so I can change it again later in life) I dont think the computer knows the difference if it is for a ford mustang or a BMW

 I have used the Ford mustang O2's on many VW's and my M42 and they work great. Autozone $30 also. You can customize the connectors for easy replacement down the road also. Then heat wrap for the final touch.

3

Engine + Driveline / need water-pump help

« on: February 12, 2009, 10:24:26 AM »

I like the tree idea. Just have someone video tape it....

4

Engine + Driveline / Can a M42 motor come out of time?

« on: February 10, 2009, 09:34:14 AM »

http://en.wikipedia.org/wiki/Pounds_per_square_inch#cite_note-0

Psig stands for 'pounds per square inch gauge'.

You need 0-100 PSIg

Surprised you haven't blown the 0-10psi gauge up, lol

If you not maxxing out the 0-10psi gauge then you obviously have a failed fuel pump.

Also 2 items of curiosity,
1) is the same gauge you said read in bar and where showing 4-5bar which would now equate to 4-5psi? (dead fuel pump)
2) I notice a CA license plate, did you email me today regarding this E30?

If it was you, instead of towing the car to my place, how about I drive over to you and hook up the proper fuel pressure gauge to verify the fuel pressure? (405 and the 5?)

Thats me. If you can come to my place and help me out, that will be perfect.

Parker

5

Engine + Driveline / Can a M42 motor come out of time?

« on: February 09, 2009, 09:16:50 PM »

thanks That helps. My fuel pressure gauge tester reads in PSIG. from 0-10. how do I convert that to PSI?

6

Engine + Driveline / Can a M42 motor come out of time?

« on: February 09, 2009, 05:12:33 PM »

Question....
under the hood, the line that the fuel run to the rail is a brass line and the return "top" is a black line correct? If I disconnect the return line and run the fuel pump, I should have gas flow out of that line correct?

thanks

7

Engine + Driveline / Can a M42 motor come out of time?

« on: February 08, 2009, 03:53:25 PM »

Well the FPR did not fix the problem and neither did the Crank Sensor. I even replaced the ECU to no avail. I once again checked the fuel pressure and it is pumping. Im lost. Anyone want to buy a non running 318is for cheap?

8

Engine + Driveline / Guess it is worth a shot.

« on: February 02, 2009, 05:34:02 PM »

I tried to find a picture on real oem but it isn't even given a part number. It is a small cylinder that seals the top of the fuel pump to the bottom of the integrated hard line, if you have pulled an oe pump then you should know what I'm talking about. And no, it wasn't an easy diagnosis, even though it turned out to be something totally stupid. I had even pulled the pump up out of the hole just to check things, but the crack was on the backside and I couldn't see it, oh well. Carry on.

Do you think the fuel pressure is what caused the crack? Im wondering how the part failed.

9

Engine + Driveline / Engine rattle & leak

« on: February 02, 2009, 05:17:48 PM »

1. Turn your back
2. RUN FAST

HAHAHAH that is pretty screwed up.

10

Engine + Driveline / Engine rattle & leak

« on: February 02, 2009, 04:22:48 PM »

I have joined the M42 Club because of my prospective purchase of a relatively clean '90 318is.  The only problem with the car is that it has a rattling/grinding noise that the owner's mechanic says is the loose timing chain hitting the cover.  He says it has actually worn through the cover and is now slowly leaking oil onto the ground and engine.
My question is this: If it is true that the timing chain has worn a small hole in the cover, how hard would it be to repair the damage?
I have access to a complete parts engine to get the covers from and I am confident in replacing anything that needs to be done.  I need to decide within the next 3 hours.  Please help

Thanks,
Cody

You better get that fixed before you have a much larger problem. I would pull the cover, inspect the cam gears and make sure the teeth are not pointed. If everything looks okay, put the new cover on it, and replace the chain tentioner. I think they are pretty cheap, and you should be able to search for a good DIY on this forum to help you out on replacing it the correct way.

good luck.

11

Engine + Driveline / Can a M42 motor come out of time?

« on: February 02, 2009, 10:34:21 AM »

did you ever end up buying the pressure regulator?  $112 for the CPS?  Damn.. I would have searched for a used one...

Yeah, I have a new pressure regulator, but I have not installed it yet. Im hoping the CPS will fix it and I will return the FPR. That way I can get my $70 back. Also, I dont have time to wait to find a used one that may or may not work once I get it. I really need to get this car on the road so I can sell it. I love the car, but I need a pickup truck pretty bad.

12

Engine + Driveline / Guess it is worth a shot.

« on: February 02, 2009, 10:31:58 AM »

Well I figured it out.

After me and Eric went through every single electrical issue left I decided that it had to be some kind of problem with the pump. When I went to pull the pump to just go return it for another equally loud and shitty autozone special, I realized there was a slight problem. The small connector between the pump and the hard line had a huge crack in it, bye bye fuel pressure. So yeah, after all of that troubleshooting crap, a 2 inch piece of fuel hose saved the day. Gotta love it.

Im trying to visualize where the crack was in the hose. Isn't this a hose on the outside of the tank, where fuel would be leaking into the car??

13

Engine + Driveline / Can a M42 motor come out of time?

« on: January 31, 2009, 03:23:29 PM »

My understanding is that a complete diagnostic of the crank sensor requires the use of an oscilloscope so that you can see the wave.

Well I dont have an Octopus Scope "hahaha" so AutohauseAZ.com just got $112.00 from me. I hope this works.....

14

Engine + Driveline / Can a M42 motor come out of time?

« on: January 31, 2009, 01:42:25 PM »

Good fuel pressure through the whole system. This sucks ass. I am not wondering is my crank sensor is bad, but for some reason the ohms test is coming up okay. Anyone ever have a bad sensor but didn't know until you replaced it.  Does this sound right?

15

Engine + Driveline / Guess it is worth a shot.

« on: January 27, 2009, 07:15:34 PM »

Yeah I have one of each known to be working, I'm going to swap them in, in the morning. I will report back, but by now I'm almost positive that it is the cps. We shall see.

one of the sensors should be 1280 ohms and the other is like 540. Test the center and left pins on both of them.

Does the car crank, but not start?

good luck.