New starter spins but gear wont move - RX8Club.com

Go Back  RX8Club.com > General Topics > New Member Forum
Reload this Page >

New starter spins but gear wont move

New Member Forum A place for new members to get their feet wet

New starter spins but gear wont move

Reply

 
 
 
Old 01-27-2018, 11:36 PM
  #1  
New Member
Thread Starter
 
Join Date: Jan 2018
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
New starter spins but gear wont move

Hay everyone!!! Long time rx8 owner, first time forum member. I have a 2005 rx8 manual trans on my third engine. Car hasnt been to reliable for me lol. Long story short i just replaced engine with used one. Brand new starter,coils,and plugs. Car ran and drove for a month and then randomly now it wont start so i bought a new starter

1- new starter spins when key is turned
2- starter gear will not slide out to make contact with flywheel
3- bench testing starter i can get gear to slide out if i supply direct power to both terminals

My question would be where does the small black pressed on wore connector go ? What would cause it to not send signal to push gear out ?
Zoomzoom720 is offline  
Reply With Quote
Old 01-28-2018, 08:44 AM
  #2  
^^^ Fluent in snark.
 
NotAPreppie's Avatar
 
Join Date: Mar 2006
Location: Chicago, IL, USA, North America, Earth, Sol System, Sector ZZ9 Plural Z Alpha, Milkyway, Universe
Posts: 2,818
Thanked 331 Times in 265 Posts
Sounds like an installation issue.

There should be a spade terminal for the wire with the spade connector. You can see it here (just to the left of the two threaded posts):

Last edited by NotAPreppie; 01-28-2018 at 08:49 AM.
NotAPreppie is online now  
Reply With Quote
Old 01-28-2018, 11:24 AM
  #3  
New Member
Thread Starter
 
Join Date: Jan 2018
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Im having a hard time thinking its install error. I instaled the engine and starter the first time and it ran perfectly for over a month. Now iv replaced dtarter 3/4 times this week with new ones thinking i was getting faulty remans. Install is incredibly simple.

With the starter installed nice and tight, the battery terminal bolt securly fastened, and that spade terminal connected the starter will spin but the gear does not slide out. If i put started on bench and connect power to both of those electrical connection points via jumper cables, the starter gear spins AND slides out.

1) cluth interlock switch bad ?
2) main relay?
3) ignition switch?
Zoomzoom720 is offline  
Reply With Quote
Old 01-28-2018, 05:23 PM
  #4  
New Member
Thread Starter
 
Join Date: Jan 2018
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Today i scanned car snd got a p0336 code. Then I cleared the NVRAM and still nothing. You can hear starter gear spinning but car wont fire. The belt under hood isnt even spinning. I then spun crank pulley to ensure engine wasnt seized. And i tested the clutch sensor and it tested good. Im stumped
Zoomzoom720 is offline  
Reply With Quote
Old 01-28-2018, 06:38 PM
  #5  
^^^ Fluent in snark.
 
NotAPreppie's Avatar
 
Join Date: Mar 2006
Location: Chicago, IL, USA, North America, Earth, Sol System, Sector ZZ9 Plural Z Alpha, Milkyway, Universe
Posts: 2,818
Thanked 331 Times in 265 Posts
If that’s the case then it sounds like the starter solenoid might be bad.
NotAPreppie is online now  
Reply With Quote
Old 01-28-2018, 06:52 PM
  #6  
New Member
Thread Starter
 
Join Date: Jan 2018
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Originally Posted by NotAPreppie View Post
If thatís the case then it sounds like the starter solenoid might be bad.
Thats how it would appear except when bench testing starter it works as it should
Zoomzoom720 is offline  
Reply With Quote
Old 01-29-2018, 07:06 AM
  #7  
^^^ Fluent in snark.
 
NotAPreppie's Avatar
 
Join Date: Mar 2006
Location: Chicago, IL, USA, North America, Earth, Sol System, Sector ZZ9 Plural Z Alpha, Milkyway, Universe
Posts: 2,818
Thanked 331 Times in 265 Posts
Then it sounds like an install issue. (Can we keep going around in circles?)

Basic explanation for anybody else who doesn't understand starters.
The interface is very simple. The spade terminal is the trigger for the solenoid. The top screw terminal is power from the battery. The bottom terminal transmits power from the solenoid to the starter motor.

The solenoid is triggered when 12V power is applied to the spade connector. This should extend the starter gear and start it spinning. If it only spins, then the plunger isn't extending the gear.
NotAPreppie is online now  
Reply With Quote
Old 01-29-2018, 04:11 PM
  #8  
New Member
Thread Starter
 
Join Date: Jan 2018
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
I dont know how else to tell you it is not installers error. Iv swapped these motors 3 timed problem free, i think i can hsndle 2 bolts and 2 connects. A monkey could replace these starters.

Somthing did occur to me today tho. Unfortunatly i cannot test it for next few days due to traveling but i have a theory. With starter installed you can clearly hear the gear turn, but cannot visually see if it comes out to make contact with flywheel. I assume its not becuase you can see the underhood belt not rotating. BUT what if gear is coming out and making contact with the flywheel which in turn is spinning it but the flywheel has become unattached.

My next test will be to remove starter and while looking at flywheel have friend rotate crank pulley to see if engine will rotate along ith flywheel.
Zoomzoom720 is offline  
Reply With Quote
Old 01-29-2018, 05:53 PM
  #9  
^^^ Fluent in snark.
 
NotAPreppie's Avatar
 
Join Date: Mar 2006
Location: Chicago, IL, USA, North America, Earth, Sol System, Sector ZZ9 Plural Z Alpha, Milkyway, Universe
Posts: 2,818
Thanked 331 Times in 265 Posts
Or the starter gear is extending but is no longer securely attached the starter motor. Maybe enough to spin the gear until a load is applied.
NotAPreppie is online now  
Reply With Quote
Old 02-06-2018, 10:49 AM
  #10  
New Member
 
Join Date: Sep 2013
Location: Birmingham/Huntsville Al
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Happened to me also. Turned out to be a separated ring gear from the flywheel. The starter spins the engine doesn't.
Top Blaster is offline  
Reply With Quote
Old 02-06-2018, 10:59 AM
  #11  
New Member
Thread Starter
 
Join Date: Jan 2018
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Originally Posted by Top Blaster View Post
Happened to me also. Turned out to be a separated ring gear from the flywheel. The starter spins the engine doesn't.

Its funny you say that, i was just telling my feiend the other day thats what i thought it was too. Unfortunately i wont be near car for a few more days. Im gonna remove starter and have buddy rotate crank and see if flywheel spins. Or if i can freely spin flywheel myself without engine rotating
Zoomzoom720 is offline  
Reply With Quote
Old 02-06-2018, 11:12 AM
  #12  
New Member
 
Join Date: Sep 2013
Location: Birmingham/Huntsville Al
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
I removed the starter to check the flywheel. What I found was that the ring gear would move back and forth in the flywheel groove. Not much but enough that the started would not engage.
Top Blaster is offline  
Reply With Quote
Old 02-13-2018, 06:33 AM
  #13  
New Member
Thread Starter
 
Join Date: Jan 2018
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
And in the end it was a broken flywheel. Put new one in and she started right up👍🏻
Zoomzoom720 is offline  
Reply With Quote
Reply
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
blkswan
Series I Trouble Shooting
21
01-15-2015 11:14 AM
Neil Sheffield
Series I Trouble Shooting
16
04-20-2012 08:37 PM
mattg2247
Series I Trouble Shooting
6
08-14-2011 01:05 AM
mysql
Series I Aftermarket Performance Modifications
3
10-06-2008 03:33 PM
RX8rider
RX-8 Discussion
36
01-04-2005 11:30 PM


Thread Tools
Search this Thread
Rate This Thread
Rate This Thread: