Show full size 924Board.org
Discussion Forum of 924.org
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
 Technical FAQ924 FAQ (Technical)   Technical924 Technical Section   Jump to 924.org924.org   Jump to PCA 924 Registry924 Registry

Guage swap -- bad idea?
Goto page 1, 2  Next
 
Post new topic   Reply to topic    924Board.org Forum Index -> General Discussions
View previous topic :: View next topic  
Author Message
Stampedetrail  



Joined: 29 May 2005
Posts: 274
Location: Fairbanks, Alaska

PostPosted: Sun Sep 16, 2007 7:33 pm    Post subject: Guage swap -- bad idea? Reply with quote

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.
Back to top
View user's profile Send private message Send e-mail Visit poster's website
D Hook  



Joined: 02 Nov 2002
Posts: 3158
Location: Omaha, NE

PostPosted: Mon Sep 17, 2007 1:12 am    Post subject: Reply with quote

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
Back to top
View user's profile Send private message Send e-mail
RC  



Joined: 25 Mar 2007
Posts: 2637
Location: Australia

PostPosted: Mon Sep 17, 2007 8:41 am    Post subject: Reply with quote

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, ???
Back to top
View user's profile Send private message
Stampedetrail  



Joined: 29 May 2005
Posts: 274
Location: Fairbanks, Alaska

PostPosted: Mon Sep 17, 2007 9:01 am    Post subject: Reply with quote

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.
Back to top
View user's profile Send private message Send e-mail Visit poster's website
D Hook  



Joined: 02 Nov 2002
Posts: 3158
Location: Omaha, NE

PostPosted: Mon Sep 17, 2007 9:54 am    Post subject: Reply with quote

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
Back to top
View user's profile Send private message Send e-mail
Stampedetrail  



Joined: 29 May 2005
Posts: 274
Location: Fairbanks, Alaska

PostPosted: Tue Sep 18, 2007 6:37 pm    Post subject: Reply with quote

Rotfl
come on!!
_________________
1977.5 924 "Martini" head / New Old Stock rebuild
1985.5 944 Why? Because I can.
Back to top
View user's profile Send private message Send e-mail Visit poster's website
morghen  



Joined: 21 Jan 2005
Posts: 9102
Location: Romania

PostPosted: Wed Sep 19, 2007 6:18 am    Post subject: Reply with quote

just drop it...the 911 one looks as crap in a bottle.
_________________
Supercharger and EFI kits
https://www.the924.com
Back to top
View user's profile Send private message Visit poster's website Yahoo Messenger MSN Messenger
D Hook  



Joined: 02 Nov 2002
Posts: 3158
Location: Omaha, NE

PostPosted: Wed Sep 19, 2007 11:58 am    Post subject: Reply with quote

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
Back to top
View user's profile Send private message Send e-mail
Stampedetrail  



Joined: 29 May 2005
Posts: 274
Location: Fairbanks, Alaska

PostPosted: Wed Sep 19, 2007 1:10 pm    Post subject: Reply with quote

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.
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Ozzie  



Joined: 12 Mar 2005
Posts: 4448
Location: Townsville, Qld. Australia

PostPosted: Wed Sep 19, 2007 3:39 pm    Post subject: Reply with quote

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
Back to top
View user's profile Send private message Send e-mail
D Hook  



Joined: 02 Nov 2002
Posts: 3158
Location: Omaha, NE

PostPosted: Wed Sep 19, 2007 9:14 pm    Post subject: Reply with quote

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
Back to top
View user's profile Send private message Send e-mail
D Hook  



Joined: 02 Nov 2002
Posts: 3158
Location: Omaha, NE

PostPosted: Wed Sep 19, 2007 9:20 pm    Post subject: Reply with quote

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
Back to top
View user's profile Send private message Send e-mail
RC  



Joined: 25 Mar 2007
Posts: 2637
Location: Australia

PostPosted: Thu Sep 20, 2007 12:53 am    Post subject: Reply with quote

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
Back to top
View user's profile Send private message
Stampedetrail  



Joined: 29 May 2005
Posts: 274
Location: Fairbanks, Alaska

PostPosted: Thu Sep 20, 2007 12:51 pm    Post subject: Reply with quote

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.
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Stampedetrail  



Joined: 29 May 2005
Posts: 274
Location: Fairbanks, Alaska

PostPosted: Sat Sep 22, 2007 7:00 pm    Post subject: Reply with quote

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.
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    924Board.org Forum Index -> General Discussions All times are GMT + 10 Hours
Goto page 1, 2  Next
Page 1 of 2

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group