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Jumping Tach!

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Old May 18, 2004 | 04:18 PM
  #1  
WhiteEG6's Avatar
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From: Jacksonville, FL
Default Jumping Tach!

I am having some problems with my distributor. Last week my tach started to jump back and forth the symptoms of a bad igniter, so I replace the igniter and the problem remains. While IM accelerating the tach moves slightly, but under WOT it pegs quickly to 8K. Could it be anything else that I have missed? I checked all my connections. I notice that when I turn the key to the acc spot the tach moves to 1k. IM stumped here.
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Old May 18, 2004 | 05:12 PM
  #2  
civickiller's Avatar
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From: Kona/V-town, HI
Default Re: Jumping Tach! (WhiteEG6)

might have to replace the whole dist, try swap with a known good dist and see if it still happens
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Old May 18, 2004 | 08:50 PM
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From: Greetings From Asbury Park,, NJ
Default Re: Jumping Tach! (WhiteEG6)

Common problem on Hondas.
Loose or corroded main ground connector at thermostat housing and/ OR Loose or corroded connections at the coil and /or ignitor inside the dizzy.
Clean, tighten, crimp and Di-electric grease all the above.
HTH
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Old May 19, 2004 | 04:12 PM
  #4  
WhiteEG6's Avatar
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Default Re: Jumping Tach! (4crx4me)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4crx4me &raquo;</TD></TR><TR><TD CLASS="quote">Di-electric grease all the above.
HTH</TD></TR></TABLE> Di-electric? is this a specific type of grease?
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Old May 19, 2004 | 05:53 PM
  #5  
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From: Greetings From Asbury Park,, NJ
Default Re: Jumping Tach! (WhiteEG6)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WhiteEG6 &raquo;</TD></TR><TR><TD CLASS="quote"> Di-electric? is this a specific type of grease?</TD></TR></TABLE>
Yeah, Permatex makes it. They sell it at pep boys. It's not absolutely neccasary, if you do the the first 3 things, though.
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Old May 23, 2004 | 03:57 PM
  #6  
PurpleDC2's Avatar
 
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From: Brighton, CO, USA
Default Re: Jumping Tach! (4crx4me)

make sure to check the main ground, the one attached from body to the tranny
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Old May 23, 2004 | 04:24 PM
  #7  
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Default

Ok, i'm sorry, but is their a pic that shows where these grounds are, or a more brief description, thanks!
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Old May 23, 2004 | 04:56 PM
  #8  
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bump!!! help!!
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Old May 23, 2004 | 09:49 PM
  #9  
NSTY Z33's Avatar
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From: 407, FL, USA
Default Re: Jumping Tach! (WhiteEG6)

WhiteEG6. Found it/fixed it man, exact problem as you.

I cleaned/dremeled ground plate and grounds at tranny/chassis.
Tighted up connectors at ignitor(Would have rather soldered, but don't have tool)
Brushed up all connectors at ignitor and coil.

This all helped, thanks to people's posts. Hopefully problem does not arise again till i get my new motor in
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Old May 25, 2004 | 09:51 AM
  #10  
speedDOHCtors's Avatar
 
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From: Riverside, CA, USA
Default Re: Jumping Tach! (JDMCRXDelSol)

Open the distributor and make sure that all of your connections are really tight. It seems that if they are even the slightest bit loose it will cause the tach to jump. Also make sure to check the back of the speedo. It's possible that a wire could have come loose in there also.
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