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03-16-2003, 07:12 PM
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#1 |
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Registered User
Join Date: Oct 2002
Location: enterprise kansas
Posts: 230
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tach problems
ok I was messing in the 71 today since its about 75 degrees out. and I was trying to hook up the factory tach in the dash. if I tap the guage the needle bounces so Im pretty sure it works. the problem is the motor doesnt move it. theres two wires on the back of the dash panel. one is running to the tach plug on the HEI cap. the other is running to the fuse block. is this right and any ideas as to why its not working if it is? any help would be appreciated
thanks, Dan
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71 chevy C10 LWB 2WD runs and everything 79 chevy 1/2 ton Big Ten silverado gonna part it out since it left me walking. 69 f100 real good shape with lots of go go juice 89 plymouth reliant (daily driver) 86 thunderbird sitting in the weeds almost covered (anyone need parts?) WWW.xschunkofthenet.freeservers.com nothing there I promise " tell me I'm a sinner I got news for you. I spoke to god this morning and he dont like you" OZZY |
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03-16-2003, 07:20 PM
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#2 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
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TACH
Make sure the tach is hooked to the tach side of the dist. cap. It's marked and make sure you have the metal tab that goes in the cap in place, I have seen these missing before. Yes the wires should be as you said.
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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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03-16-2003, 07:22 PM
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#3 |
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Registered User
Join Date: Oct 2002
Location: enterprise kansas
Posts: 230
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yeah its hooked on right on the dist. the only thing I can think of is the wires may be bad since its hooked up right. is there a right and wrong plug to hook them to on the tach?
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71 chevy C10 LWB 2WD runs and everything 79 chevy 1/2 ton Big Ten silverado gonna part it out since it left me walking. 69 f100 real good shape with lots of go go juice 89 plymouth reliant (daily driver) 86 thunderbird sitting in the weeds almost covered (anyone need parts?) WWW.xschunkofthenet.freeservers.com nothing there I promise " tell me I'm a sinner I got news for you. I spoke to god this morning and he dont like you" OZZY |
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03-16-2003, 07:28 PM
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#4 |
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Registered User
Join Date: Jul 2000
Location: NC
Posts: 987
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Make sure the tach is well grounded...To test my tach while it was out of the truck, I wired the body of the tach to a good ground and that made the difference.
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03-16-2003, 07:31 PM
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#5 |
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Registered User
Join Date: Oct 2002
Location: enterprise kansas
Posts: 230
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I didnt think about that it should be grounded though its bolted in tight and the dash is real solid actually.
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71 chevy C10 LWB 2WD runs and everything 79 chevy 1/2 ton Big Ten silverado gonna part it out since it left me walking. 69 f100 real good shape with lots of go go juice 89 plymouth reliant (daily driver) 86 thunderbird sitting in the weeds almost covered (anyone need parts?) WWW.xschunkofthenet.freeservers.com nothing there I promise " tell me I'm a sinner I got news for you. I spoke to god this morning and he dont like you" OZZY |
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03-16-2003, 07:33 PM
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#6 |
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Registered User
Join Date: Jul 2000
Location: NC
Posts: 987
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Did you try switching the wires on the back of the tach?
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03-16-2003, 07:34 PM
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#7 |
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Registered User
Join Date: Jul 2000
Location: NC
Posts: 987
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And...I am sure you are correct...if the tach is installed in the dash you should be good for ground.
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03-16-2003, 07:34 PM
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#8 |
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Registered User
Join Date: Oct 2002
Location: enterprise kansas
Posts: 230
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not yet Im getting ready to do that when Im done jumping back and forth between posts. which is going to have to be soon the suns going down
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71 chevy C10 LWB 2WD runs and everything 79 chevy 1/2 ton Big Ten silverado gonna part it out since it left me walking. 69 f100 real good shape with lots of go go juice 89 plymouth reliant (daily driver) 86 thunderbird sitting in the weeds almost covered (anyone need parts?) WWW.xschunkofthenet.freeservers.com nothing there I promise " tell me I'm a sinner I got news for you. I spoke to god this morning and he dont like you" OZZY |
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03-16-2003, 08:23 PM
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#9 |
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Registered User
Join Date: Oct 2002
Location: enterprise kansas
Posts: 230
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ok after a long lengthy descision ( mainly unplugging things and plugging them back in so many times my hand hurts from hitting stuff up under the dash) and with a lot of choice words. Ive come to the desicion of I dont think it works. perhaps I'll just find another somewhere. whats the cheapest place for replacement clusters? and can I buy just one of the parts of do I have to buy them all?
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71 chevy C10 LWB 2WD runs and everything 79 chevy 1/2 ton Big Ten silverado gonna part it out since it left me walking. 69 f100 real good shape with lots of go go juice 89 plymouth reliant (daily driver) 86 thunderbird sitting in the weeds almost covered (anyone need parts?) WWW.xschunkofthenet.freeservers.com nothing there I promise " tell me I'm a sinner I got news for you. I spoke to god this morning and he dont like you" OZZY |
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03-16-2003, 08:32 PM
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#10 |
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Registered User
Join Date: Jul 2000
Location: NC
Posts: 987
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I am sure you buy just the tach if that is all that you need. I think I saw a tach for sale on the parts board for $50.
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