 Tach bouncing repair, where is the post?? |
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| Britain Smith |
 Feb 22 2005, 09:18 PM
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#1
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Nano Member  Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364  |
Can someone give me the link of the thread that described which capacitors inside the tach need to be replaced to keep it from jumping all over the place.
-Britain |
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Replies(1 - 10)
| bd1308 |
Feb 22 2005, 09:20 PM
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#2
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
i thought it was the springs that needed to be adjusted in order to stop the bouncing?Caps sound more feasable though
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| Britain Smith |
Feb 23 2005, 01:45 PM
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#3
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Nano Member Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364 |
Is there no one who can help me out with this?
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| Demick |
Feb 23 2005, 01:54 PM
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#4
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Ernie made me do it! Group: Benefactors Posts: 2,312 Joined: 6-February 03 From: Pleasanton, CA Member No.: 257  |
I'm guessing that it is just a matter of replacing some of the electrolytic caps inside the tach. I offered to do some research on this a few years back to see if I could come up with a fix - the offer was for a few people to send me their bouncing tachs (I would pay shipping), and I would see what I could come up with. If I could successfully come up with a fix and repair any of the tachs which were sent to me, then I offered that they could have them back - they just had to pay the postage both ways and parts costs.
Nobody took me up on the offer. I don't think anyone has an official fix except to send it to PA Speedo and pay $180 for a new circuit board. Demick |
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| J P Stein |
Feb 23 2005, 01:57 PM
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#5
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
IIRC, it's a resistor that can be applied externally. I saw it in "up fixen" I think. I'll see if I can root it out.....it could take a while. |
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| scruz914 |
Feb 23 2005, 02:07 PM
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#6
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Senior Member Group: Members Posts: 815 Joined: 26-February 04 From: Santa Cruz, CA Member No.: 1,724 |
There was some discussion on tach bounce here but nothing to really correct it.
Tach Thread I think that PA Speedo would be the best way to go. |
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| Mark Henry |
Feb 23 2005, 02:08 PM
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#7
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Yep I have the fix...toss it for a autometer monster (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif)
IMHO you need it for that bad boy your building and it's a 100 times better tach. Fits the stock hole perfect. Attached image(s) 
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| bd1308 |
Feb 23 2005, 02:15 PM
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#8
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
will the sportcomp guage work with our stock wiring?
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| JmuRiz |
Feb 23 2005, 02:17 PM
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#9
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914 Guru Group: Members Posts: 5,586 Joined: 30-December 02 From: NoVA Member No.: 50 Region Association: MidAtlantic Region 
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If it matters, my tach bounces a LOT less now that I'm running a Crane Optical points system and their box/coil. Might have something do do with it. Anyone have a bouncing tack that's using a Mallory or any other dizzy?
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| Mark Henry |
Feb 23 2005, 02:33 PM
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#10
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
No problem on the tach, I put connectors on it so I didn't have to cut the stock wiring. Little bit of black RTV and stick it in. The issue is you lose the turn and high beam lights. I got a couple of 12v mini lights from radio shack and did a stelthy install in the e-brake light lens. You could just drill a couple of 1/8" holes in the panel. Thing is as solid as a rock and no more (IMG:http://www.914world.com/bbs2/html/emoticons/boldblue.gif) |
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| scotty914 |
Feb 23 2005, 02:48 PM
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#11
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suby torque rules Group: Members Posts: 1,528 Joined: 20-July 03 From: maryland, the land of 25 year Member No.: 924 |
if somebody sends me a tach i can figure a poor man fix, or even a new board. i would sell the fix for 5 bucks or the board for a little over cost. but my tach does not bounce so i cant use mine for a test.
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