CJ7 tach wiring - JeepForum.com

 
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post #1 of 3 Old 04-23-2014, 10:44 AM Thread Starter
foggybottombob
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1984 CJ7 
 
Join Date: May 2008
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CJ7 tach wiring

Does anyone know if an original 84 CJ7 factory tachometer has any means of switching it from 6 cylinder compatible to 8 cylinder compatible.

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post #2 of 3 Old 04-23-2014, 11:12 AM
Mike Romain
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Quote:
Originally Posted by foggybottombob View Post
Does anyone know if an original 84 CJ7 factory tachometer has any means of switching it from 6 cylinder compatible to 8 cylinder compatible.
No, they never came with V8's. But on a recent post, a gent insists it just works with his new V8. I would be tempted to just try it and see. It is wired inline with the ignition power.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
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post #3 of 3 Old 04-23-2014, 01:45 PM Thread Starter
foggybottombob
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Mine is wired like the stock one was but the tach is not stable. It reads correctly for a while then it will jump up 500 or 600 rpm and bounce around that for a while. It's unstable and gives inconsistent readings. I guess I need to buy a new tach.
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