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E34 (1989 - 1995)

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  #1  
Old 01-07-2013, 08:16 AM
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hh3uunp hh3uunp is offline
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Won't start not battery chainsaw sound

So since my e39 been out of commission due to the poor roads in Springfield. I have been driving my brothers e34 but this morning it wouldn't start and it wasn't the battery. My mechanic skills end there. Sounds like an idling chainsaw
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  #2  
Old 01-07-2013, 11:44 AM
paperplane94 paperplane94 is offline
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If you hear the starter turning but the engine is not turning then the solenoid on the starter has failed. You can try to strike it with something to get it to engage, but replacement is best.
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  #3  
Old 01-07-2013, 11:58 AM
paperplane94 paperplane94 is offline
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"chainsaw sound" tells me that the starter is turning, but not the engine.
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  #4  
Old 01-07-2013, 12:04 PM
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Quote:
Originally Posted by Monsignor View Post
It could be the battery not giving enough power. These cars tend to really need lots-a juice.

A car needs four things to run
Air
Spark
Fuel
Compression
Make sure the fuel pump is running and check the FP relay; it seems to be a commmon issue on these bad boys.

From there try a battery.
Fixed.
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It's Deja Poo - as in, I've heard this **** before.
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  #5  
Old 01-07-2013, 12:22 PM
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Quote:
Originally Posted by paperplane94 View Post
"chainsaw sound" tells me that the starter is turning, but not the engine.
Good answer

Time to replace the starter motor. When the pinion gear does not come out far enough to proporly engage the flywheel, it makes that awefull sound. That is the sound of the gear grinding on the fly wheel.
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  #6  
Old 01-07-2013, 01:12 PM
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Quote:
Originally Posted by Monsignor View Post
OP, does the engine crank and not fire?
The engine doesn't fire

Update
1. Checked all the fuses/relays

I don't really have a lot of time to mess with it
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  #7  
Old 01-07-2013, 02:35 PM
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supertech777 supertech777 is offline
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The bendix gear on your starter may have some broken teeth or worse case your flywheel has a bad spot ...

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  #8  
Old 01-07-2013, 02:53 PM
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BMR_LVR BMR_LVR is offline
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Quote:
Originally Posted by Monsignor View Post
using that logic
  • oil
  • coolant
  • radiator
  • fan
  • transmission
  • driveline
  • differential
  • wheels
  • tires
  • brakes
  • seat
  • steering wheel
  • pedal assembly
  • brake fluid

I'm just messing around. I know what you mean. At high mileage which is common for a car that can possibly be registered a classic used daily, cylinder wear can cause compression issues.

I dont think OP has suddenly woken up and found his car is pushing 0 psi on all 6 (8?) cylinders though...
I wasn't saying that compression was his problem, but it is one of the 4 basic tennants of a gasoline internal combustion engine. Honestly, I was just messing with you a little just for fun. Guess I should have used an emoticon like or
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Quote:
Originally Posted by noego View Post
It's Deja Poo - as in, I've heard this **** before.
Steve

Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold


Last edited by BMR_LVR; 01-07-2013 at 02:54 PM.
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  #9  
Old 01-08-2013, 04:53 PM
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just to confirm, we are talking about the E34 not the E39 right?
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  #10  
Old 01-08-2013, 05:46 PM
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Quote:
Originally Posted by _Ethrty-Andy_ View Post
just to confirm, we are talking about the E34 not the E39 right?
Yes. His brothers E34 because his E39 is OOC
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  #11  
Old 01-08-2013, 05:52 PM
snowsled7 snowsled7 is offline
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It still is not clear if the starter is turning over the engine, and the engine isn't starting OR the starter is not engaging the flywheel and the engine isn't turning over as the key is turned.

Two very distinct problems, two different solutions
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  #12  
Old 01-08-2013, 06:02 PM
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I have no clue. It was towed to my Indy for repairs mainly I just don't have time to fix it.

Ill update once I get it back so you guys can know what was wrong
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  #13  
Old 01-08-2013, 06:43 PM
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Quote:
Originally Posted by supertech777 View Post
the bendix gear on your starter may have some broken teeth or worse case your flywheel has a bad spot ..
+1
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Last edited by Radian; 01-08-2013 at 06:45 PM.
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  #14  
Old 01-09-2013, 12:00 AM
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BMWFatherFigure BMWFatherFigure is offline
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If the fly wheel has a bad spot turn the motor in normal direction about 30degrees. Might even start and get you to repair shop.
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  #15  
Old 01-09-2013, 07:49 AM
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Quote:
Originally Posted by BMWFatherFigure View Post
If the fly wheel has a bad spot turn the motor in normal direction about 30degrees. Might even start and get you to repair shop.
Can you explain why turning the motor 30 Degrees would change how the starter engages the flywheel any differently?
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  #16  
Old 01-09-2013, 07:51 AM
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I see that BMWFF is off line, so I will venture an answer if he doesn't mind. If there is a bad spot in the flywheel, and the starter gear cannot engage it where it is, then by rotating the crankshaft, it may get to where the teeth on the flywheel are good therby allowing the starter gear to engage and spin the flywheel enough to get the car to crank.

Correct me if I'm wrong FF.
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Most problems are usually something simple !

Quote:
Originally Posted by noego View Post
It's Deja Poo - as in, I've heard this **** before.
Steve

Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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  #17  
Old 01-09-2013, 08:25 AM
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Quote:
Originally Posted by BMR_LVR View Post
I see that BMWFF is off line, so I will venture an answer if he doesn't mind. If there is a bad spot in the flywheel, and the starter gear cannot engage it where it is, then by rotating the crankshaft, it may get to where the teeth on the flywheel are good therby allowing the starter gear to engage and spin the flywheel enough to get the car to crank.

Correct me if I'm wrong FF.
But wouldnt it just get back to the bad part of the flywheel eventually if it doesnt fire immediately. How many turns does a motor go through before firing usually? I strongly believe it would be at least 1 full rotation.
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  #18  
Old 01-09-2013, 08:36 AM
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Yeah, but ideally, the flywheel would have enough rotational inertia to allow the bad spot to go past the starter gear. Not perfect by any means, but perhaps it would allow him to get it started so that he can get it to the mechanic.
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Most problems are usually something simple !

Quote:
Originally Posted by noego View Post
It's Deja Poo - as in, I've heard this **** before.
Steve

Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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  #19  
Old 01-09-2013, 09:08 AM
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I would love OP to try this and to post results.

Obviously the flywheel has to be the issue in this case. And the issue in the flywheel has to be a single bad spot in the teeth so chances are slim this is even the problem. Turning the engine a touch is free and harmless. Infinitely worth a shot.
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  #20  
Old 01-09-2013, 09:17 AM
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BMR_LVR BMR_LVR is offline
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Quote:
Originally Posted by hh3uunp View Post
.... It was towed to my Indy for repairs mainly I just don't have time to fix it. .....
Quote:
Originally Posted by Monsignor View Post
I would love OP to try this and to post results.

Obviously the flywheel has to be the issue in this case. And the issue in the flywheel has to be a single bad spot in the teeth so chances are slim this is even the problem. Turning the engine a touch is free and harmless. Infinitely worth a shot.
He already towed it to his mechanic

Joe: 1
Steve: 1

__________________
Most problems are usually something simple !

Quote:
Originally Posted by noego View Post
It's Deja Poo - as in, I've heard this **** before.
Steve

Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

Reply With Quote
  #21  
Old 01-09-2013, 09:31 AM
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hh3uunp hh3uunp is offline
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Quote:
Originally Posted by BMR_LVR View Post
He already towed it to his mechanic

Joe: 1
Steve: 1

Yeah now we play the waiting game. Tick tock tick tock ... This is taking too long
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  #22  
Old 01-09-2013, 09:32 AM
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That was a quick turnaround...

Kudos, touché, so on and so forth
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