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Speed Metal Army General
Join Date: Apr 2012
Posts: 457
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Tach not firing up right away?
Sometimes my tach doesn't work off the hop! If I razz the motor a bit it comes to life and stays on line. Once its working it does so flawlessly. I did search for this problem(Pre-emptive defence here
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10-08-2014, 07:51 PM
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Registered User
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Mine is the same. Subscribed.
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10-08-2014, 08:01 PM
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Registered
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Mine does that when my battery starts to weaken, then I charge the battery and the symptoms go away. Might just be coincidental.
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78’ SC 911 Targa - 3.2SS, PMO 46, M&K 2/2 1 5/8” HEADERS, 123 DIST, PORTERFIELD R4-S PADS, KR75 CAMS, REBEL RACING BUSHINGS, KONI CLASSICS |
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10-08-2014, 09:02 PM
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Registered
Join Date: Oct 2006
Posts: 315
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On my 73S it appears that the glass has warped because after sitting for more that one week, upon starting, the tack will not move. If I tap on the glass the needle will move freely.
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10-09-2014, 12:51 AM
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Registered
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Mine do that when the outside temperature is over 90 degrees.
But once I drive my car for 5 minutes it comes back to life. My car stays in the garage and this never happens until it's park outside for more then two hours.
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76 carrera 3.0 SSI W/M&K 1RARE76/]89 carrera 4 (964)SOLD 87 targa 3.2,fabspeed cat bypass,sw chip,m&k exhaust(sold)94 carrera 2 cabriolet(sold)00 carrera 996(sold) 95 993,red,meanest looking one(sold) 83 911 sc targa,my first porsche(sold)
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10-09-2014, 05:51 AM
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Member 911 Anonymous
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Gentlemen, have you all check the ground behind the tach to insure they clean and tight? This is just not normal. my 2 cents. I know it is a PITA to remove the tach but I would check the contacts especially the ground.
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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10-09-2014, 06:14 AM
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Registered
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Yep, easy peasy, I have the quick release steering wheel,the tach pops right out in seconds, connection does not seem to be the issue for me.
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78’ SC 911 Targa - 3.2SS, PMO 46, M&K 2/2 1 5/8” HEADERS, 123 DIST, PORTERFIELD R4-S PADS, KR75 CAMS, REBEL RACING BUSHINGS, KONI CLASSICS |
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10-09-2014, 09:43 AM
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Registered
Join Date: Feb 2006
Location: Ontario Canada
Posts: 2,947
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i had this .. and i had a wild swing also .. like there was no damping action .
i bought a tach core and swapped them out while i got mine rebuilt. all worked great so i never got mine rebuilt. I think you will find your problem is the tach.
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1976 Yamaha XS360 ( Beats Walkin') 1978 911 SC Targa ( Yamaha Support Vehicle ) 2006 Audi A4 2.0T (Porsche Support Vehicle ) 2014 Audi A4 2.0T Technik (Audi Support Vehicle) |
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10-09-2014, 11:45 AM
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Targa
Stella
My Favorite
AWSOME 964
carrera 3.0
Marble Grey
