 Tach doesn't funcion |
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| markwemple |
 Feb 26 2008, 09:51 AM
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#1
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Member  Group: Members Posts: 68 Joined: 27-November 07 From: Severna Park, MD Member No.: 8,380 Region Association: MidAtlantic Region  |
I can't find the wiring diagram that is specific enough about the tach to chase the wires. Plan on cleaning the ground post nearby but don't know where the wire attaches to the distributor or how to check to make sure the tach itself isn't dead. Someone told me that 914 tachs fail more often than most.
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| Dave_Darling |
Feb 26 2008, 11:34 AM
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#2
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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Make sure the red/white wire gets power when the key is on.
Make sure the grounds are good. Make sure the black/purple wire at the tach connects nicely to the black/purple wire on the (-) terminal of the coil. --DD |
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| purple |
Feb 26 2008, 11:35 AM
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#3
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Pigeon feeders attract me Group: Members Posts: 938 Joined: 24-July 07 From: Houston, TX Member No.: 7,942 Region Association: None |
also make sure fuse # 9 isnt hosed.
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| markwemple |
Feb 26 2008, 03:18 PM
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#4
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Member Group: Members Posts: 68 Joined: 27-November 07 From: Severna Park, MD Member No.: 8,380 Region Association: MidAtlantic Region |
QUOTE(Dave_Darling @ Feb 26 2008, 09:34 AM)  Make sure the red/white wire gets power when the key is on. Make sure the grounds are good. Make sure the black/purple wire at the tach connects nicely to the black/purple wire on the (-) terminal of the coil. --DD So, that is one wire that I should check for damage. (black/purple) |
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| markwemple |
Feb 26 2008, 03:20 PM
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#5
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Member Group: Members Posts: 68 Joined: 27-November 07 From: Severna Park, MD Member No.: 8,380 Region Association: MidAtlantic Region |
QUOTE(purple @ Feb 26 2008, 09:35 AM) also make sure fuse # 9 isnt hosed. #9 fuse is fine. It WAS one of the circuits giving me trouble, though. All other #9 circuits work, except the wiper motor. |
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| crash914 |
Feb 26 2008, 03:24 PM
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#6
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its a mystery to me Group: Members Posts: 1,826 Joined: 17-March 03 From: Marriottsville, MD Member No.: 434 Region Association: MidAtlantic Region |
Mark, the tach wire also goes through the relay plate. The wire should be connected to the same post that the points are connected to. As Dave said, - terminal of the coil.
I can show you. If possible, I do have another tach for sale... |
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| markwemple |
Feb 26 2008, 03:34 PM
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#7
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Member Group: Members Posts: 68 Joined: 27-November 07 From: Severna Park, MD Member No.: 8,380 Region Association: MidAtlantic Region |
QUOTE(crash914 @ Feb 26 2008, 01:24 PM) Mark, the tach wire also goes through the relay plate. The wire should be connected to the same post that the points are connected to. As Dave said, - terminal of the coil. I can show you. If possible, I do have another tach for sale... Thanks Herb. I still need to come up and pick up the wheel and see what else you have from the great part out! MAybe I'll take a risk and drive the '14......Um well maybe I'll put on several local miles first! |
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