Adding an early 911 combo gauge in 6 conv.

[krk]

Originally posted by bernbomb914
Did I say Kirk? I ment Mike and Thanks To krk for the info to find the #
Bernie

No worries. My neighbor calls me kirk too. And I also ended up using visual enhancement devices to make sure I could read the fine print on that gauge. I sort of expected each of the components to have a number as well -- they don't seem to.

So an additional question for y'all. The temp gauge has no numbers (red is probably not good, and the druck side goes from 0 to 5. On my 76 911, the temp gauge is calibrated in degrees F, and the druck side is calibrated in lbs/sq-in. (so I just went out in the dark and found the number -- 911 641 107 30 with 0006 on the right)

So... I can live with the druck guage for oil pressure as I'm sure someone will tell me what the calibration is, but I'd prefer a calibrated gauge for temp. I sort of expected to get that when I picked the 78 one up (no I didn't see it).

Is there a rhyme and reason to these gauges? Certain years? Certain models? Certain options? Etc.

krk.

[Mike D.]

I can see a number on the pressure switch, the one on top next to the breather. (this is the pressure switch, right?) It is a small one like on the 4cyl. cars all it says is 072-2J.

Should it be one of the larger cylindrical ones?

Is the temp sender the one on the front left just below the fan? If so, I just can't see anything but a VDO stamp.

-Mike D.

[bernbomb914]

There are senders with two posts that handle the lite and guage. Is that what you use with this gauge?

Bernie

[914timo]

bernbomb914

Is there a fuel guage that will work with the 914 sender made by VDO?

Yes there is. I use VDO 3309556 fuel gauge, and it works great with 914 sender.

http://www.vdokienzle.ch/pkw/s31110.htm




The price was here last summer under 40 euros (about $40).

[bernbomb914]

Thanks Timo for the information.

Bernie

[Jim Chambers]

I have a temp/pressure gauge similar to JP's, 4", on ebay now (#1874629212). I also have a 3" 911 fuel level/oil level (#1875629809). Both came to me in a 914-6. The oil gauge was in the cluster to the left just like JP's pictured above. I have gone back to the stock 6 combo gauge. The level gauge was mounted below the dash with a bracket but could be installed in a console after cutting a larger hole. Obviously, the oil level gauge half would be inoperative on a 4. I never operated the car with the gauges installed so I can't guarantee that they work. Compatible sending units could probably be found using the data earlier in this thread. My reserves are $10 & $8 dollars.
Don't expect to get rich, just send them out of my garage.

[Dave at Pelican Parts]

A few things here....

Originally posted by krk
... the druck side goes from 0 to 5.

That's Bar, or atmospheres. 1 Bar is about 14.5 PSI.

Originally posted by bernbomb914
There are senders with two posts that handle the lite and guage. Is that what you use with this gauge?

Nope. They're talking 911 engines, which have a separate sender for the gauge than for the light. To run these gauges on a four-cylinder 914, you would need to pick up senders that match the gauges. I hear from the guys at Palo Alto Speedometer that the regular aftermarket VDO senders actually do match the 911 gauges. You have to pick a 5-bar pressure sender, of course, and you have to pick a temp sender that is labeled with the same range as the gauge--but supposedly that is all you have to do!

NB, on the temp gauge without numbers, try looking at the veeeeeerrrrrry edge of the gauge module. You may find tiny little numbers there; those are the temps at that point in degrees C.

The gauge differences do depend on the year of the 911, mostly. I'm not sure any of them came from the factory with PSI and Deg F markings, but those were popular aftermarket upgrades for a while.

--DD

[Jim Chambers]

For what it's worth, the oil gauge I have on Ebay appears to be PSI and Degrees F. Sure looks like a factory gauge.

[Mike D.]

I'm installing the 911 combo gauge in a '73 914 w/ 1970 2.2E engine bumped up to 2.4. (I think, still working on that too).

I looked at that 3" fuel/oil level gauge. I could make another face plate for the center consol and instal that 3" gauge where the old 4 cyl. temp gauge is/was. On that note maybe I could get a clock that works...

-Mike D.

[J P Stein]

Get the same year gauge (or close.....71-73) as the motor.
There is a date on the back of the gauge that tells ya when it wuz made......I had no problem finding one......mine is in bar (press/druck) and Centigrade (temp). Easy to deal with.

When the temp reaches 80C, I feel free to play with the waa,waa pedal. A waa, waa pedal comes as standard equiptment with Webers or, I'm told, MFI.

[krk]

Jim Chambers: This is the first time I've heard of the oil level gauge working with the /6 oil tank. (in my dim memory, I thought someone told me the /6 oil tank wasn't plumbed with the sender stuff?) Anyone else know?

JP: I can confirm the waa, waa pedal was also shipped on the '76 turbo. It seems operational.

DD: On my turbo, the temp is in degrees-F. I recall reading in the user guide not to fully engage the waa, waa pedal until temp measures 178F (or some such thing). I'm pretty sure the manual referred to degrees F, which would suggest it was shipped that way. I'll have to dig it out. I also squinted really hard, and can't see any markings on the uncalibrated temp gauge. I'll pop it out of the case and see if I'm simply blind.

krk.

[Jim Chambers]

krk: You are right. No level gauge in a factory six. Some PO wanted one bad enough to cut a hole in the side of the tank next to the oil filter and solder a sending unit in. The he had to cut a hole (with a can opener I think) in the body for clearance.
Car was in pieces when I got it. Put tank in, filled with oil, went in for Dinner. Came out to a 4" puddle of oil. Leaking from the soldered seam. Took tank to a radiator shop and had sender removed and tank patched. No more level gauge. Ask me if I care. I have always found a dip stick does the job.

[krk]

Jim -- I agree. The level gauges aren't particularly accurate anyway. Well, if you're stopped long enough and they're still in the red, you should have turned it off earlier...lol. Certainly, not as good as keeping a bead on temp and pressure.

DD -- I'll be.. er.. whatever. You are on the money and I am in fact blind. I popped the gauge out and there are teeny tiny markings for temp on there.

There are marks for 30C(56F), 60(140F), 150C(302F) and 170C(338F). The 60 and 150 mark the operating band (the top of the warm up box and the bottom of the *red* zone) 30 is about 1/3 below 60 and 170 is about 1/3 above 150.

Now, can that really be right? 150C/302F seems awfully *hot*! I would have thought the red zone would start at 250F or so...??? Have I misread something?


krk.

[Dave at Pelican Parts]

You've only missed the notion that Porsche didn't want people to keep coming in saying "my car is running in the red zone!!!" Just like the change in 74 on the 914, where the red zone was moved higher up on the gauge...

--DD

[krk]

DD: are you aware of whether the values are the same on the temp gauge that was stock on the /6? (I'll be pulling it at some point, but I was just curious...)

krk.

[Dave at Pelican Parts]

Nope, not sure what they were. I think that there are calibration numbers on the edge of the stock Six temp gauge, though, just like the 911 ones.

--DD

[krk]

Originally posted by Dave at Pelican Parts
Nope, not sure what they were. I think that there are calibration numbers on the edge of the stock Six temp gauge, though, just like the 911 ones.

Sheesh. Now I'm going to have to pull the face off and see. The bay area weather has created other... er... opportunities for me to do things around the house for now. I'm on BA's tranny course mon/tues. We'll see when I actually get to it....

krk.

VDO does not list the number given below - is it the correct number???

Ken

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"bernbomb914

Is there a fuel guage that will work with the 914 sender made by VDO?

Yes there is. I use VDO 3309556 fuel gauge, and it works great with 914 sender.

http://www.vdokienzle.ch/pkw/s31110.htm"
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[914timo]

Try the link I gave. There you can see:

VDO cockpit vision Kraftstoff-Vorratsanzeiger 301-010-008K

The number is not the same I gave earlier. I donīt know why. Maybe they have chanced the numbering after summer.

[Optimusglen]

Sorry to bring up an old thread, but I have a 911 combo gauge 91164110400 and I'm trying find which oil temp and oil pressure senders match with it.