89 930 won't start intermittently
12-20-2021 | 09:52 PM
#1
Thread Starter
8th Gear
Joined: Jul 2011
Posts: 8
Likes: 0
89 930 won't start intermittently
Hi,
My 930 will occasionally not start or turn over. I do hear a loud click from the engine compartment. The battery is fully charged. Is there any type of ignition lock switch that prevents starting without the clutch being depressed that might be failing? If I pres the clutch and release it a couple of times it usually starts right up. Any other thoughts are appreciated. Thanks!
My 930 will occasionally not start or turn over. I do hear a loud click from the engine compartment. The battery is fully charged. Is there any type of ignition lock switch that prevents starting without the clutch being depressed that might be failing? If I pres the clutch and release it a couple of times it usually starts right up. Any other thoughts are appreciated. Thanks!
Last edited by automan9; 12-21-2021 at 04:23 PM. Reason: Adding additional information
12-23-2021 | 01:55 PM
#2
Pro
Joined: Aug 2006
Posts: 591
Likes: 114
From: Germany
No, there are no safety switches for the clutch. The cause of the problem is most likely the starter solenoid switch, which sometimes gets stuck.
The clutch is right next to the starter, apparently the slight vibration when the clutch is pressed is sometimes enough to get the solenoid switch unstuck.
The solenoid switch can be replaced without replacing the starter motor, but the starter motor has to be removed therefor.
Fritz
The clutch is right next to the starter, apparently the slight vibration when the clutch is pressed is sometimes enough to get the solenoid switch unstuck.
The solenoid switch can be replaced without replacing the starter motor, but the starter motor has to be removed therefor.
Fritz
12-13-2022 | 07:13 PM
#5
Pro
Joined: Aug 2006
Posts: 591
Likes: 114
From: Germany
No I didn't, I would need a Bosch Classic spare parts list for that.
As a rule, however, the exchange is mostly not necessary. I have had very good experience with disassembling, cleaning and re-greasing the parts of the starter.
The inner parts of magnetic switch do not have to be greased but used clean and dry. Only if plunger and housing have deep grooves I would replace it, but that is almost never the case.
The only real wearing parts are the brushes of the collector, which can be obtained as a spare part.
For the disassembly you need no special tools, simple diy job.
Fritz
As a rule, however, the exchange is mostly not necessary. I have had very good experience with disassembling, cleaning and re-greasing the parts of the starter.
The inner parts of magnetic switch do not have to be greased but used clean and dry. Only if plunger and housing have deep grooves I would replace it, but that is almost never the case.
The only real wearing parts are the brushes of the collector, which can be obtained as a spare part.
For the disassembly you need no special tools, simple diy job.
Fritz
Last edited by fritz k.; 12-13-2022 at 07:14 PM.
01-19-2023 | 10:30 PM
#7
Track Day
Joined: Sep 2015
Posts: 18
Likes: 3
No I didn't, I would need a Bosch Classic spare parts list for that.
As a rule, however, the exchange is mostly not necessary. I have had very good experience with disassembling, cleaning and re-greasing the parts of the starter.
The inner parts of magnetic switch do not have to be greased but used clean and dry. Only if plunger and housing have deep grooves I would replace it, but that is almost never the case.
The only real wearing parts are the brushes of the collector, which can be obtained as a spare part.
For the disassembly you need no special tools, simple diy job.
Fritz
As a rule, however, the exchange is mostly not necessary. I have had very good experience with disassembling, cleaning and re-greasing the parts of the starter.
The inner parts of magnetic switch do not have to be greased but used clean and dry. Only if plunger and housing have deep grooves I would replace it, but that is almost never the case.
The only real wearing parts are the brushes of the collector, which can be obtained as a spare part.
For the disassembly you need no special tools, simple diy job.
Fritz
Last edited by TDH888; 01-19-2023 at 10:31 PM.