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Fly wheel tooth missing

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  #51  
Old 04-11-2012 | 12:04 AM
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Rebuild your engine every 3,000 miles and you'll never have any issues... or time/money
 
  #52  
Old 04-11-2012 | 04:21 AM
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see Broken Reluctor Tab on D1 - DiscoWeb Message Boards for someone who has made the welding repair
 
  #53  
Old 04-11-2012 | 09:21 AM
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Great idea...the clip! And that one would epoxy well with JB Weld.
 
  #54  
Old 04-11-2012 | 02:04 PM
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Originally Posted by best4x4byfar
Great idea...the clip! And that one would epoxy well with JB Weld.

Give it a try and let us know how it goes.

Also I would like to understand how it happened in the first place so hopefully the rest of us do not encounter that problem.

Good Lucky

(Just saw 3 Amigos again, Steven Martin's character was named Lucky.
 
  #55  
Old 04-11-2012 | 03:09 PM
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The clip idea would thicken one tab and push the gap to the side. In addition, the gap should be 4.5 mm. How would these factors effect the CKP waveform?
 
  #56  
Old 04-11-2012 | 03:13 PM
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IMHO the physics is more sensitive to the edge of the tab, which causes the zero crossing of the waveform. The thickness of the tab is not as big an issue. The drilled reluctor style have much thicker walls of the "tab" areas. See Distributor Pickups for some ideas. There would have to be enough clearance for tip not to contact the center area between inner and outer tabs.
 
  #57  
Old 04-11-2012 | 04:06 PM
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Default 5mm tab...

Answer to what caused this: "Broken flywheel tooth could have been chewed up by starter, perhaps someone tried to crank one time with engine already running, etc. Usually the tip would fall to the bottom if broken off, it could only be involved in breaking a tooth if it travelled around the flywheel and was engaged by starter gear during starting." Savannah Buzz

Plan is for the week up coming to coordinate Rover on lift with welder/ metal fabricator to do the work.. oil pan pulled and access revealed to the reluctor plate. Mechanic is not as excited as I am about this....now if we lived in a third world country such repairs would be de rigeur...

So it is a 5mm tab for 1998 Reluctor? Measurements for metal fabrication? Not sure tab can be found that broke off. I can have welder bring metal of that width to job....and what gauge steel?

Also really interested in the clip idea...
 

Last edited by best4x4byfar; 04-11-2012 at 04:10 PM.
  #58  
Old 04-11-2012 | 04:24 PM
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I dont understand why people always speculate when they have no experience doing it.. Take it to a certified welder and they can fix it. see the post Sav posted from Dweb - maybe PM the guy ask him what he did.
 
  #59  
Old 04-11-2012 | 05:06 PM
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Originally Posted by Savannah Buzz
IMHO the physics is more sensitive to the edge of the tab, which causes the zero crossing of the waveform. The thickness of the tab is not as big an issue.
yup, agreed
 
  #60  
Old 04-11-2012 | 05:14 PM
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This an example of a need for simple signal processing. A digital circuit to take in the pulses, find the rea d missing double pair of teeth, produce a cleaned up waveform out that is synced to pulses, and ignores drop out of a single tooth. Somebody may already make one. Is there a computer weasel in the house?
 


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