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10-11-2011, 09:30 PM
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#1 |
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Registered User
Join Date: Jun 2010
Location: Las Vegas, Nv
Posts: 312
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Tach help
Just finished installing a tach in place of the HUGE fuel gauge, and have the small fuel gauge in the lower left spot on the cluster. Got everything wired up and work except for the fact the tach seems to read low(halfway between 5 and 0) when idling in gear. Haven't taken it out for a drive, but upon revving, the rpms seem good. Also, they seem good when in park or neutral. The cluster that I used to add to mine was from a light duty 8cyl truck. Think the tach is dyeing? Maybe need to pop the needle off and re-position?
Also, figured I'd post a pic of what the gauges are going to look like when completed: 
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1995 Suburban K2500 454.....off road & towing 1999 Astro, work van 2006 Silverado 2wd 5.3 w/4.5" lift and 33s |
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10-11-2011, 09:51 PM
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#2 |
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Registered User
Join Date: Jul 2009
Location: Thibodaux, LA
Posts: 479
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Re: Tach help
when it is idling in gear it is going to naturaly lower the RPM of the motor as it is pushing against the TQ convt. if at idle in neutral or park you are around 700 rpm then in gear at idle little below 500 sounds about right to me.
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"Buckle up I wanna try somethin!!" "of course it will hold!, I welded it!" 1977 c10 under knife for full rebuild, 5.3l 4l60e drive rain swap, replacement frame and green repaint |
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10-11-2011, 10:30 PM
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#3 |
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Registered User
Join Date: Jun 2010
Location: Las Vegas, Nv
Posts: 312
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Re: Tach help
Yea, I know it's gonna be lower in gear, it just seems to low to me.
Park:  Drive: 
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1995 Suburban K2500 454.....off road & towing 1999 Astro, work van 2006 Silverado 2wd 5.3 w/4.5" lift and 33s |
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10-11-2011, 10:48 PM
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#4 |
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Registered User
Join Date: Jul 2009
Location: Thibodaux, LA
Posts: 479
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Re: Tach help
i would turn up your idle about 100rpm. does i sound like it wants to diesel or die? if not then should be fine
__________________
"Buckle up I wanna try somethin!!" "of course it will hold!, I welded it!" 1977 c10 under knife for full rebuild, 5.3l 4l60e drive rain swap, replacement frame and green repaint |
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10-11-2011, 11:13 PM
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#5 | |
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Registered User
Join Date: Jun 2010
Location: Las Vegas, Nv
Posts: 312
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Re: Tach help
Quote:
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1995 Suburban K2500 454.....off road & towing 1999 Astro, work van 2006 Silverado 2wd 5.3 w/4.5" lift and 33s |
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10-12-2011, 12:52 AM
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#6 |
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Registered User
Join Date: Jul 2009
Location: Thibodaux, LA
Posts: 479
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Re: Tach help
ok that sounds good long as it doesnt sound like its tryn to race out of gear of going into gear hard that sounds about right
__________________
"Buckle up I wanna try somethin!!" "of course it will hold!, I welded it!" 1977 c10 under knife for full rebuild, 5.3l 4l60e drive rain swap, replacement frame and green repaint |
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