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Stampedetrail

Joined: 29 May 2005 Posts: 274 Location: Fairbanks, Alaska
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Posted: Sun Sep 16, 2007 7:33 pm Post subject: Guage swap -- bad idea? |
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Hi all. I'm thinking about swapping the fuel / temp / idiot light gage for this one:
911 SC Gage
Opinions? I think it will look better, so long as it fits The only other issue would be where to find a small fuel gage to install in place of the old oil guage.
Have to think about that one. Does anyone have a 911 with a similar gage they could measure? That would be nice to know if this swap is possible without a lot of re-engineering of the dash, which I won't do. Thanks!
Edit:
I could replace the old oil pressure gage with this number:
VDO gage
Cool idea, no? _________________ 1977.5 924 "Martini" head / New Old Stock rebuild
1985.5 944 Why? Because I can. |
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D Hook

Joined: 02 Nov 2002 Posts: 3158 Location: Omaha, NE
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Posted: Mon Sep 17, 2007 1:12 am Post subject: |
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Are you trying to solve an issue with your present gauge?
Have you checked the wiring harness to see what the swap would entail?
That old adage "if it ain't broke, don't fix it" comes to mind.
Good luck. _________________ '80 924 n/a SOLD |
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RC

Joined: 25 Mar 2007 Posts: 2637 Location: Australia
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Posted: Mon Sep 17, 2007 8:41 am Post subject: |
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| Quote: | | Post subject: Guage swap -- bad idea? |
Well considering that the standard gauge is 10 bar (1 bar = 14.7 PSI) , a good engine developes 7 bar (100 PSI) and the 911 one on ebay only appears to read 5 bar full scale, ??? |
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Stampedetrail

Joined: 29 May 2005 Posts: 274 Location: Fairbanks, Alaska
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Posted: Mon Sep 17, 2007 9:01 am Post subject: |
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No issue, just wanted to think about sprucing things up at the dash a bit.
| Quote: | | Well considering that the standard gauge is 10 bar (1 bar = 14.7 PSI) , a good engine developes 7 bar (100 PSI) and the 911 one on ebay only appears to read 5 bar full scale, |
Well that's a good point. The needle will always be pegged! Wonder why the oil pressure on a 911 engine would be so low? You could always halve the voltage to the dial with the right resistor, but then you're calculating oil pressure in your head while driving or something like that. Not to mention that the 911 guage has jumped way up in price. Have to think about this one some more, but that guage has got to go (too f'ugly). Maybe there's a guage for an Audi that would fit & have the right scale? _________________ 1977.5 924 "Martini" head / New Old Stock rebuild
1985.5 944 Why? Because I can. |
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D Hook

Joined: 02 Nov 2002 Posts: 3158 Location: Omaha, NE
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Posted: Mon Sep 17, 2007 9:54 am Post subject: |
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I think (but am not sure) that you could change the sender to get around that.
How 'bout this:
Get some 2 1/8" VDO Cockpit-style gauges (all over ebay) to match the present oil pressure gauge you should already have. You would need a temp guage, a fuel gauge and a volt gauge. Take out the AC switch above the radio and mount the fuel gauge there, take out the clock and mount the volt gauge in it's place. Then buy an A pillar gauge cluster and mount the water temp gauge and even an oil temp gauge there.
Then convert the empty hole opposite of your OXY sensor light and make that a turn signal indicator. Lose the low fuel light or incorporate it into the A pillar somewhere. Pull out the OXY light (no one uses them anyway) and use that light for high beam indicator. You don't need the brake light indicator since that lights up on the dash above the radio as well.
Then in the big empty whole where the gauge was that you don't like the look of, buy a VDO 911 clock.
Now you have a whole bunch of racey looking gauges, a chopped up wiring harness and (best of all) you still have a clock! And you didn't even chop up your speaker cover to do it.  _________________ '80 924 n/a SOLD |
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Stampedetrail

Joined: 29 May 2005 Posts: 274 Location: Fairbanks, Alaska
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Posted: Tue Sep 18, 2007 6:37 pm Post subject: |
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Rotfl
come on!! _________________ 1977.5 924 "Martini" head / New Old Stock rebuild
1985.5 944 Why? Because I can. |
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morghen

Joined: 21 Jan 2005 Posts: 9102 Location: Romania
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Posted: Wed Sep 19, 2007 6:18 am Post subject: |
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just drop it...the 911 one looks as crap in a bottle. _________________ Supercharger and EFI kits
https://www.the924.com |
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D Hook

Joined: 02 Nov 2002 Posts: 3158 Location: Omaha, NE
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Posted: Wed Sep 19, 2007 11:58 am Post subject: |
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| Stampedetrail wrote: | Rotfl
come on!! |
Actually, that's all doable. I just don't know why you'd want that fugly 911 gauge in there.  _________________ '80 924 n/a SOLD |
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Stampedetrail

Joined: 29 May 2005 Posts: 274 Location: Fairbanks, Alaska
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Posted: Wed Sep 19, 2007 1:10 pm Post subject: |
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So... you're saying the 911 gage will fit then? If not I'll have a hell of a time finding a clock that big. I don't want to go so "ricey," just kind of upgrade & modernize things a bit. Already tried LED lights but they just arent all that bright -- I can barely see the tach when it's dark!
Help!! _________________ 1977.5 924 "Martini" head / New Old Stock rebuild
1985.5 944 Why? Because I can. |
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Ozzie

Joined: 12 Mar 2005 Posts: 4448 Location: Townsville, Qld. Australia
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Posted: Wed Sep 19, 2007 3:39 pm Post subject: |
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Standard dash bulbs are 1.3Watt.
Higher wattage bulbs are available. _________________ Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance |
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D Hook

Joined: 02 Nov 2002 Posts: 3158 Location: Omaha, NE
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Posted: Wed Sep 19, 2007 9:14 pm Post subject: |
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Your car is 30 years old. Trying to modernize it will take a bit of it's "charm" away, IMHO. But it's your car and your the one who has to look at it.
Go on ebay and find a 911 clock and check the measurements and see if that fits into your bezel. If it does, your in business.
Everything I listed there is doable because you're still using OEM gauges so the look will be consistent, providing you find the right ones. But it will make a big mess down the road for yourself when something starts acting up and for the next owner for sure.
Rice, to me, is when you try to make the car appear to be something it's not. It's not a 911, it's not a Boxster.
Good luck! _________________ '80 924 n/a SOLD |
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D Hook

Joined: 02 Nov 2002 Posts: 3158 Location: Omaha, NE
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Posted: Wed Sep 19, 2007 9:20 pm Post subject: |
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BTW, cleaning your grounds under the dash will help those dash lights quite a bit.
Also, if you decide to switch to a higher wattage lamp, take the cover off the back of the speedo and put some tin foil or something similar between the dash bulb and the odometer gear. (tin foil can short so be careful where you put it.) Putting a hotter bulb in there will cause the plastic gear to become brittle and break easier. I think it's what leads to so many failures of the gears in the speedos on these cars and the early 944's. _________________ '80 924 n/a SOLD |
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RC

Joined: 25 Mar 2007 Posts: 2637 Location: Australia
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Posted: Thu Sep 20, 2007 12:53 am Post subject: |
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| Quote: | Already tried LED lights but they just arent all that bright -- I can barely see the tach when it's dark!
Help!! |
Some of the cheap Chinese ones are dimmer than stock. Started writing a reply but it dragged on so I made it a how to.
Maybe you would be interested in some modern replacement dial faces like in another thread just down this page a bit?
Roger |
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Stampedetrail

Joined: 29 May 2005 Posts: 274 Location: Fairbanks, Alaska
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Posted: Thu Sep 20, 2007 12:51 pm Post subject: |
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Hmmm, the ones I bought were from Radio Shack... buncha monkeys. Vaughn has a good link on LED lights though that I checked out last night, but I was hoping to find something here in town that would work. Actually, I think what I'm gonna do is first get some LEDs that are BRIGHT, then pull the speedo & see what's what with the broken Odometer. Probably the gear slipped & I'll have to rig it, but I'm pretty good at that sort of thing having built a little generator out of 2 8-track players and so forth.
I still want to find a better looking damn fuel/temp/idiot gage!! Any ideas besides a huge 911 clock? BTW thanks RE the tinfoil I'll try that out! _________________ 1977.5 924 "Martini" head / New Old Stock rebuild
1985.5 944 Why? Because I can. |
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Stampedetrail

Joined: 29 May 2005 Posts: 274 Location: Fairbanks, Alaska
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Posted: Sat Sep 22, 2007 7:00 pm Post subject: |
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Just got back in, it's about 40 F out, from repairing & installing my speedo / odo & replacing the lights. I got the speedo out in no time, but it took hours & hours to fix the odo. After I got the speedo open, found the typical cracked gear had typically descended on the odo shaft. I pulled the gear & tried to repair it with model airplane cement (toluene). I also cut a small spacer from a drive gear from an 8-track player which fits well under the gear to keep it from descending again. Tried to glue the two pieces together, but it wasn't staying put. So now I've got the gear interference-fitted on the shaft with a sleeve of black electrical tape on the shaft, and the aforementioned spacer underneath. It works, though I don't know for how long!
I also zeroed out the odometer, replaced the light bulbs, and added longer wires to make installation easier. It's not a problem to remove the cable at the EGR box instead of at the speedo.
I zeroed out the odometer with a drill with a wooden screwdriver installed handle-out with a rubber band wrapped around the handle, then driving the odo gear with the drill.
Crazy night. Now my wife is pissed. _________________ 1977.5 924 "Martini" head / New Old Stock rebuild
1985.5 944 Why? Because I can. |
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