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01-31-2003, 02:17 PM
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#1 |
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Registered User
 
Join Date: Oct 2002
Location: Gilroy, CA
Posts: 1,454
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Will the stock tach work with HEI??
So will it? Mine was converted to HEI before I bought it. The tach was unpluged from the cap. I pluged it in and it will hardly move. Has my tach gone bad? Could it be a bad ground? Or something else???
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1969 Chevy Project SWB Fleet, 20s, 5.3, t56, in the weeds. 1970 Chevy Truck cab on a 1979 Jimmy frame-8.1 liter 496 bbc/sm465/np203-jeds doubler-np205/d60/14bff Welded/42 tsls on recentered H1s 1998 Chevy Crew Cab K3500 SAS'd with hpd60, links and swayaway coilovers. 8.1l vortec DD/towrig "I like long walks, especially when they are taken by people who annoy me. " |
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01-31-2003, 02:41 PM
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#2 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Stock tachs will definately work with the HEI distributors. Something must be wrong with your tach.
Jim |
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01-31-2003, 03:48 PM
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#3 |
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Registered User
Join Date: Oct 2000
Location: St. Johns, Arizona
Posts: 2,660
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I agree that it should work.
On that note, the guy I bought my '72 K10 'burb from said that he had tried to convert it to HEI, but the tach wouldn't work,so he put it back. All i can say is make sure that your connections are tight, and you are on the 'tach' terminal of the distributor...
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my 2¢ - t.i.o.l.i. Bowen 1968 K20 fleet 1969 K10 swb fleet 1972 K10 Suburban 1972 C10 lwb step 1992 K1500 'burb 1995 K2500 'burb 1997 C1500 'burb 1999 K1500 2000 K1500 'burb Why do I own so many Suburbans? |
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01-31-2003, 05:03 PM
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#4 |
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Senior Member
 
Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
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Pertorinx HEI
I've got a Pertronix HEI and my factory woks as good as the old way.
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01-31-2003, 06:00 PM
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#5 |
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Registered User
Join Date: Apr 2002
Location: Choctaw, OK
Posts: 235
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I've got the original tach with '76 original (Autozone) HEI, works great, "tach" terminal is labled on distributer.
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'69 Chev Cust/10 swb, 350/700R4, 5"/6" '70 Chev C10 swb, 67 front, 454/700r4, 4"/5" '73 Chev stepper, 350/3 spd '84 Chev K20 350/4 spd '91 GMC 1500 Suburban 4x4, 350/700R4 |
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01-31-2003, 07:52 PM
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#6 |
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Senior Member
Join Date: Mar 2000
Location: Saskatoon,SK,Canada
Posts: 2,476
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Been running one that way for years with no problems.
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Saskatoon, Saskatchewan Canada |
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01-31-2003, 08:13 PM
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#7 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Tach/ HEI
There are quite a few things it could be.
1. Could be a bad ground. 2. The terminal in the HEI is not hooked right. (inside the coil) 3. The tach itself needs adjusting. 4. Tach could be broke(wires crossed on tach) 5. Connector is bad on distrbutor You wouldn't believe the stuff I found on mine when I bought it. People do some of the darndest things.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71  Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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