two carbs or not two carbs...

[norrinradd]

Can always count on TobyB ! I don't know if it's Petronix , the box was unmarked. How do I meter the coil primary ? I have an ohmmeter, where do I place leads ? Thanks again !!

[Tdh]

Pull the cap and snap of photo of what's underneath and post it here.  Like Toby, I'm pretty sure its a Pertonix under the cap based on the wires, but lets make sure before you start plugging wires in.  

[norrinradd]

Here is a pic Tdh. Thanks for the input !

[norrinradd]

Metered 7 on the ohmmeter so I guess I'm good to go !

['76mintgrün'02]

2 hours ago, norrinradd said:

Metered 7 on the ohmmeter so I guess I'm good to go !

 

 

It seems like you may have measured the secondary resistance, as opposed to the primary.
If so, that was 7000 ohms.

Did you measure between the two small posts on the coil (+/-)?   ((primary))

 

Did you zero-out your meter before testing?  It takes a fairly sensitive tester to read the primary resistance accurately.

 

The red coil requires a ballast resistor to bring it up to 3 ohms.

 

IE distributors don't come with Pertronix installed, but theirs need 3 ohms of resistance as well.  Too little resistance and you will fry it.  They're delicate.

 

Tom

[norrinradd]

Yep, measured between the two small posts to get 7 on my Fluke T5-1000 digital multimeter set to ohms. My invoice from TEP says it's a Tii mechanical advance dist. with electronic ignitor. 

['76mintgrün'02]

Oh, sorry.  It looked like an IE distributor and they also refer to theirs as a Tii distributor.

 

https://www.racetep.com/automaker/bmw/distributorless-ignition-systems-and-itb-efi-kits/tii-mechanical-advance-distributor-with-electronic-ignitor.html

 

This is a brand new Tii-style mechanical-advance distributor, made exclusively for us. This distributor comes with an electronic ignitor points-replacement kit pre-installed (similar to a Pertronix). Comes with a cap, but the name-brand Bosch cap is optional. Great upgrade for your 2002's worn out distributor. Includes instructions (An adjustable timing light highly recommended).

 

I agree with the last line of their description.

 

On 8/8/2021 at 2:09 PM, norrinradd said:

I switched to a Ti dizz and red coil.

 

7 ohms of resistance for a red coil doesn't sound right, but then again, I am assuming you have a Bosch red coil.

Tom

['76mintgrün'02]

There is a photo of the Bosch red coil on the Racetep site and the label says use with 1.8ohm external resistor, or electronic (something).  I thought the red coil had 1.2 ohms of resistance and the 1.8 was to bring it up to 3.  Hence, my confusion.

Tom

 

EDIT:

https://www.racetep.com/2002-ignition-systems-and-conversions/bosch-red-coil.html

Edited August 10, 2021 by '76mintgrün'02

[norrinradd]

Thanks Tom, I'll call Steve at TEP and see what he says. He sold it to me and will know what I should do ! -Scott

[TobyB]

Yeah, 7 ohm primary seems REALLY high-

 

I think a phone call's a good idea.

 

Then if something blows up, TEP can send you a new one.

 

It sounds like you metered it correctly- the only cross- check would

be to make sure the meter zeros (reads within .2 of an ohm when you 

meter the same post with both probes) and that it's not showing

a battery indicator.

 

odd.

 

Curious what TEP says.

 

t

 

[norrinradd]

Well, the carbs are on. There's the good news. The bad is that the starter won't turn. Metered everything and 12v everywhere it needs to be. Tried jumping contacts on solenoid even, nothing. Got a new starter. Nothing. Got another one ( exchanged ). Nothing.  Tried jump starting from a running car. Nothing. A  Bosch sr71x ( small ) arrived today and installed . Nothing. So, four starters down. Maybe it's not the starter ! When you guys get done chuckling, can you tell me what I need to do ? Thanks !

[Son of Marty]

How is the block to chassis/battery ground wire good and clean and the same size as the 12v input to the starter. also what year is your car and was it originally a automatic? There are various lock out used in some cars. 

[norrinradd]

Block to chassis ground cleaned and shiny. Wire gauge is same for pos and neg. Car is a 72 and don't believe it was auto. Seat belt clips to a metal ring behind E-brake lever. I don't see any wires to indicate a seat belt kill switch...  New coil and dist was installed with the carbs but that shouldn't interfere with starter turning...

[norrinradd]

Whoops, info not completely correct. Starter #3 turned but didn't engage gear. That was a bad starter. Starters #2 and #3 were O'reilly. It was the weekend and was all I could get !

[SydneyTii]

Have you bench tested the starter / solenoid, can you hear it do anything, wire the starter up separately out of the car see if you can make it function, at least you’d know if it’s good then, or not. They are simple cars, just as well … I work on mine!