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#1 |
Registered User
Join Date: Apr 2004
Location: Calgary, Alberta,Canada
Posts: 1,595
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Difference between 8cyl and 6cyl factory tach??
The factory tach I just bought has 8cyl stamped on the back of the housing. Will it read correctly on a 292 6cyl??
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I know what your thinking.......I have ESPN. ![]() Sometimes it's easier to do things the hard way. ![]() Fesler Built 1968 Chevy C10....Must resist the urge to mess with it!! ![]() ![]() |
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#2 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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no it will not
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#3 |
Senior Member
![]() Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,253
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Aftermarket tachs have a slide switch on the back: 6 Cyl or 8 Cyl; or 4-6-8, depending.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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#4 |
Led Sled! Discs R 4 ME!
![]() Join Date: Jan 2001
Location: Toms River, NJ, USA (Transplanted Hoosier)
Posts: 7,327
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The 6 cyl tach will count 6 fires of the coil and think the rotor has completed one revolution then there is 2 to go.
you will need a 6 cyl tach if you want to keep it factory |
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#5 |
Join Date: Dec 1999
Location: Eastern - Manitoba Canada, Winnipeg
Posts: 4,369
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See if you can dial it in to the correct rpm using the set up screw inside the tach head ... pictures shows a hole.. yours may still have a sticker covering it. Just get another tach meter that reads correctly to dial it in.
I just put tach cluster on the rad cradle.. hook a set of tach wires to it and ground the cluster to the chassis. Run the truck, set the rpm, then install correctly.
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Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife. |
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#6 | |
Registered User
Join Date: Apr 2004
Location: Calgary, Alberta,Canada
Posts: 1,595
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Quote:
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__________________
I know what your thinking.......I have ESPN. ![]() Sometimes it's easier to do things the hard way. ![]() Fesler Built 1968 Chevy C10....Must resist the urge to mess with it!! ![]() ![]() |
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#7 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Deuce,
I had PM'd you the instructions back on 6-10-04 in regards to the tach. It looks like you have not read the PM yet. Jim |
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