Jeff,
The V5 on the diagram actually means the current track continues on diagram page V, track 5 which is the Tachometer. Both the blk/violet wire from Term TD on the CD unit and the white/red wire from term 3 on the RPM limiter go to the TD terminal on the tach. The RPM limiter shuts down the fuel pump when the RPM is too high, the white/red wire is just the tach signal to the limiter.
The blk/violet wire to the TD terminal on the CD unit should be correct, I would be looking at the connection to the tach or the tach itself. Make sure it is connected to the TD terminal and nothing else is connected with it unless you have the RPM limiter wired in.

Glad to hear you got it running, been out of town so I'm just catching up on your progress. Sorry about the oil cooler, that sucks. Have you looked for a source of oil leaking on top of the cooler?.

Jim

Thanks for the feedback! There are 3 main wires connected to the tach, two red/whites hooked to the +, two brown hooked to the -, and the blk/purple hooked to the TD.

Are you saying that I only need the blk/purple and not the others?



The top of the motor is dry and it looks like it is coming from directly in the middle of the cooler fins.

No, just saying to make sure nothing else was connected to the TD terminal that could be causing your no run issue. The power and ground wires are necessary.

Jim

FYI here is the wiring page (part V) I was looking at.

Click to view attachment

I am thinking the blk/violet wire might be touching something in one of the plugs so I am going to run an external wire from the CD unit directly to the back of the tach and see what happens!

Good plan.

I ran a jumper from the CD unit to the back of the tach without hooking it up and started the motor then I touched the wire to the TD on the tach and it died and backfired?

Maybe the tach is messed up??

Is it the correct tach?
Don't know if it would make the engine die by I know there were different tachs.

Jim

I don't know, it came with the motor and injection so I assumed it was the correct one!

I was able to start the motor with the 914 tach plugged in so either it is the wrong one or something is wrong with it.

Jeff, Great to see your car running, it sure sound's quite for it having header's and that big ass muffler. What brand name is your muffler? Did Lennie tell you my 3.2 is on its way here and will show up on Monday at Sacramento terminal. Now my progess will start. Good luck with the rest of your conversion. John

3.2L, good for you!!!

When is the install party?

The muffler doesn't have any markings or numbers. I bought it in LA from a guy off craigslist for $100! He said it came off his 3.0L turbo!

Count me in on he install party of the 3,2 when it happens. Jeff, just let me know when you are ready to yank your engine and i will be there.

Lennie and I were talking about it today and I am going to try to change it with the motor in first.

We will see!!?? I will let you know! I got a new cooler today and need to send it off to be modified!

I have done 911 coolers with the engine in the car.
Factory would not pay under warranty for engine R&I.

Not as easy as if the engine were out but still doable.

Jim

I will give it a try! I still have to wait until I get the new cooler modified so it could be a few more weeks!

The might be awhile need to get a start on dropping old motor clean rusty area's and then weld in new engine mount, drill hole's for oil tank, then paint engine bay, mount front oil cooler and run oil line's, install and weld on metal flare's, then think about engine install and wiring, "o" I forgot also install new fuel line's and new fuel pump. This should keep me busy till spring. But I can't wait to start, I'm also in to need to have a 101 for dummie's on how to take and post picture's on this site and other's so I can show my progress. John

Directions for posting photos!

Thanks Jeff, I'll see if I can handle it and I'll start taking picture's of my start and my new parts as they arrive. The new wheels showed up yesterday, Polished lip's and center's 7's & 8's, new muffler a two in, two out SS Dansk, engine mount and header's and other parts are on they whey, engine come's on Monday, arrive's at Sacramento will have to go get. All this new parts mean's I've got to clean my garage to fit them in, but will be nice to get started. Thanks again John

Maybe we should have a "planning" bbq

Well I ran another jumper from the - side of the coil just to see if the tach would move a bit and still nothing! It didn't die but I figured it would at least jump a bit .

I think it is the wrong tach or it is bad!

John, glad you found your motor now the fun begins, if you want help putting lights in your garage let me know, then you can give me a hand when I get ready to do my seat upholstery.
Probably see you on the 27th if you make it.


Jeff

Send it to Palo Alto Speedometer to have it rebuilt. Most likely a bad capacitor from sitting 10 years!

Thats what Lennie said! I do think it is bad so either I buy another or fix this one!

Send it and have restored too. It will be better than new.

Tach problem is solved!!

I decided to do a bit more research on the tach and found that the part number was for a 2.7L and would not work with the 3.0L!!

So, I bought the proper tach and it fired up and worked!!

Glad to hear it's coming together, if you get it drivable you should drive it out to the Sacramento Porsche family reunion on the 27th.


Jeff

I would love to try to make it to the Sac event but the cooler may not be here until Fri. I am going to my High School Reunion this weekend so I won't get much time to work on it!!

We will see!

Ride with Lennie. We are meeting at the McDonalds by the Antioch bridge at 7:30am for the caravan to Sacramento. Then BBQ to send Rob off to Reno in style.

Good news on the tach!

Sorry was out of town for the weekend.

Don't worry Lennie, the Sac breakfast is not until the 27th!!

Windshield?

Goggles?

yea, I called him again but he must be !?

Is it running yet? How about now?

Jeff, How did you find out what your Tach will run with what motor, I thought any tach from a 911 would work. Dose it go by year to what motor its for, I bought a whloe set from MarkB but don't know what year they came out of. can you have them re-done to work with what you need? John

There is a very small part number on the inside rim lip of the face that will corispond to the year and motor!

I did have a conversation with Palo Alto Speedomiter and they said they could put the proper board in any tach but it was $250 ish by the time it was done. I bought the proper tach for $150.

Where do you get the coresponding number's for each tach to each motor. John

Pelican Parts Has the Part Numbers

Or you can look at the date code on the back and see if it matches the year range of your motor!

The part number for 911's starts with 911 and 914's start with 914!