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> SOT: 930 Tach disassembly FT! is rattling in there?, Unless your running a boosted -6
914forme
post Nov 12 2017, 07:58 PM
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Times a wastin', get wrenchin'!
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So I have a 930 Tach, and every time you rolled it around it would rattle. I figured that someone dropped a bulb in it, but before I did something with itI needed to find out why it rattled so.

So let the autopsy begin. (IMG:style_emoticons/default/screwy.gif)

930 Tach - so what makes these so damn expensive (IMG:style_emoticons/default/confused24.gif) That little 1 bar boost gauge hosed in the face. (IMG:style_emoticons/default/confused24.gif)

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Tools of the trade - custom made for this job.

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Opens gauge bezels like a can opener.

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Just work your way around, at least 3/4 of the way.

All opened up (IMG:style_emoticons/default/piratenanner.gif)

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Flip it over remove three screws and one nut.

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And removed from the can

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More Detail just for you Tim (IMG:style_emoticons/default/beer.gif)

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Interior of the can

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And now what was rattling around inside the tach.





(IMG:style_emoticons/default/poke.gif)




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I was right (IMG:style_emoticons/default/piratenanner.gif)

(IMG:style_emoticons/default/happy11.gif) Can't wait to see what happens to this now (IMG:style_emoticons/default/shades.gif)
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914forme
post Nov 18 2017, 10:52 AM
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Times a wastin', get wrenchin'!
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Just ordered the film thank you Bob for the suggestion. Will give it a try and se how it does. Bob and I have exchanged several e-mails and we will give his method a try. As Bob says "Been dicking with this stuff since 1974" I'll (IMG:style_emoticons/default/pray.gif) sage wisdom. The thread that made me reach out to Bob can be found here

First Project per Mark's request a 911 fuel gauge in a 914 Tach, nice and flat, and should put it to a good test.

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I can add more hash marks or ticks in-between the numbers to make it closer to the Porsche / VDO tach of the time period. Not bad for a few minutes and not using a scanned face. That will be next, when day light is not burning.

Ran a test print, I'll add it to a piece of AL and cut it out and see if all the stuff is in the right spots adjust and finish the design up. then off to get them cut, with a bunch of other items. (IMG:style_emoticons/default/shades.gif)

So yes Tim you will be getting a shipment soon.
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914forme   SOT: 930 Tach disassembly FT! is rattling in there?   Nov 12 2017, 07:58 PM
timothy_nd28   It's amazing how VDO stuck with their same boa...   Nov 12 2017, 08:29 PM
mepstein   So how hard is it to substitute in a 914 gas gauge...   Nov 12 2017, 08:36 PM
timothy_nd28   Mechanically, I would just reuse the boost motor a...   Nov 12 2017, 09:01 PM
Spoke   ...930 Tach - so what makes these so damn expensi...   Nov 12 2017, 09:40 PM
914forme   Well, here is the real skinny on this. The boost ...   Nov 13 2017, 11:19 AM
mepstein   Well, here is the real skinny on this. The boost...   Nov 13 2017, 11:54 AM
theer   Ooooo Stephen, that would look very nice in my Get...   Nov 13 2017, 11:36 AM
914forme   Ooooo Stephen, that would look very nice in my Ge...   Nov 13 2017, 11:56 AM
914forme   So now since Mark posed the question. Yes you can...   Nov 13 2017, 05:58 PM
mepstein   Stephen - is there any way to flip the gas gauge 1...   Nov 13 2017, 06:21 PM
Larry Hubby   You might try using a 911 fuel gauge, which reads ...   Nov 13 2017, 07:37 PM
iamchappy   Best solution would be to leave the gauge as is an...   Nov 13 2017, 07:38 PM
mepstein   Best solution would be to leave the gauge as is a...   Nov 13 2017, 07:42 PM
914forme   Mark, are you talking reverse rotation on the gaug...   Nov 13 2017, 07:46 PM
timothy_nd28   The other item, I have been thinking about revers...   Nov 13 2017, 08:14 PM
timothy_nd28   I love the type writer analogy! :D Perhaps ...   Nov 13 2017, 08:10 PM
914forme   Just ordered the film thank you Bob for the sugges...   Nov 18 2017, 10:52 AM
timothy_nd28   Sounds good! Could you also do a face overlay...   Nov 18 2017, 04:15 PM
914forme   Yes that is not an issue, I can pretty much do wha...   Nov 19 2017, 05:39 PM


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