Jump to content
  • When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Another stupid 32/36 + 123Tune thread


Jimmy

Recommended Posts

UPDATE:

 I attached the timing light and ran the car until it stalled. The timing light went dark long before the motor stopped spinning. I identifed a wiring issue at the coil and all is well, as can be for now. I'll post back here if I run into more trouble with setup.

 

My car has run too rich at idle the entire time I've owned it.

 

The 32/36 DGAV was on the car when I got it but is pretty new. (Redline model if that matters) and the stock push/pull dizzy seemed ok but I got a deal on the 123 and everyone raves about them so I figured why not chase the elusive magic setup that allows enough initial timing to keep these carbs from idling on the primaries.

 

Other than the carb and dizzy, the motor is stock as far as I can tell. The configuration retains the diverter valve gizmo that sends excess fuel back to the tank.

 

I put new NGK BP6ES/7333 (FYI the latter number is the one most FLAPS use so ask for 7333 when they tell you they don't have BP6ES) and it ran better immediately. 

 

For the moment, the 123 has the stock tii curve (I know it sucks for carbed cars, I had to use something, it won't stay that way) and a flat zero vacuum advance map. These are strictly for the purposes of initial setup. I haven't driven the car since installing the 123. I know tuning is iterative and I'm just starting out with this car.

 

At idle the exhaust is eye-watering, so I tackled that as soon as I put the new plugs in as not to foul them immediately. The car seems to idle best* with the mixture screw about 4.5 turns out (!!!) with almost no help from the idle speed screw. From reading, it sounds like the idle jet is too small. Or maybe the whole thing is a mess. I don't know yet.

 

*Here's the trouble right now: 

Since arriving at the current settings on the carb, it will idle fine for a minute or so and then suddenly completely die, is if someone shut the key off. It restarts immediately, but will then die again after idling smoothly for 10 or 15 seconds. There's plenty of fuel in the tank and in the filter. When it restarts it starts immediately without long cranking, and it revs up just fine.

 

Does any of this behavior sound like a specific known issue? If I didn't have history with this car I would suspect fuel filter, fuel pump, or float level. I'm having trouble reconciling how the car could be slowly/intermittently starving for fuel at idle. I haven't tried starting and holding it at 2000rpm or something to see if it stays running or if it dies. Maybe I should, but it seems less relevant.

 

 

 

 

 

 

Edited by Jimmy
Update
Link to comment
Share on other sites

Just a dumb thought but the +123 has a security setting in the app that disables the dizzy if it doesn’t connect with the app. Default settings have this disabled but maybe you turned it on inadvertently or prior to you purchasing it?

 

Im assuming you have the Bluetooth version? That’s all I can come up with. 

Link to comment
Share on other sites

12 minutes ago, 2002Scoob said:

I was told by 123 that if the anti-theft ignition kill is turned on, it will indeed allow a few hundred ignition cycles to happen before shutting down. It's not a full 'off'. It could be your case.

 

It's the USB version. I've had enough fidgety bluetooth stuff that I didn't want to fight with it in addition to fighting with my car. Not that I haven't also had wonky USB stuff and wonky Windows issues. The "unhandled exception" errors are a real treat. USB users know what I'm talking about.

 

I found that following the instructions included with the 123 to be an impediment to actually getting it going, particularly with respect to the green light.

 

I would revise them to this:

 

1) Do physical, electrical, and software installation as per 123 instructions.

 

2) Configure and load primary tune using known "good" safe tune eg tii map.

 

3) Locate BB on flywheel. Clean it, mark it, whatever you gotta do to see it with a timing light.

 

4)Set a point on the 123 tune map to 25 degrees at known RPM (eg 2000)

 

5) Slightly retard distributor (turn clockwise), crank engine (maybe with a buddy) slowly turning the distributor counter-clockwise until the car starts and stays running on its own.

 

6) point a normal non-fancy generic timing light (or a fancy one set to zero) at the hole in the bellhousing and adjust the distributor until the BB is visible at the RPM determined in step 4.

 

7) Tighten distributor clamp and tune away.

 

 

  • Like 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • BMW Neue Klasse - a birth of a Sports Sedan

    BMW Neue Klasse - a birth of a Sports Sedan

    Unveiling of the Neue Klasse Unveiled in 1961, BMW 1500 sedan was a revolutionary concept at the outset of the '60s. No tail fins or chrome fountains. Instead, what you got was understated and elegant, in a modern sense, exciting to drive as nearly any sports car, and yet still comfortable for four.   The elegant little sedan was an instant sensation. In the 1500, BMW not only found the long-term solution to its dire business straits but, more importantly, created an entirely new
    History of the BMW 2002 and the 02 Series

    History of the BMW 2002 and the 02 Series

    In 1966, BMW was practically unknown in the US unless you were a touring motorcycle enthusiast or had seen an Isetta given away on a quiz show.  BMW’s sales in the US that year were just 1253 cars.  Then BMW 1600-2 came to America’s shores, tripling US sales to 4564 the following year, boosted by favorable articles in the Buff Books. Car and Driver called it “the best $2500 sedan anywhere.”  Road & Track’s road test was equally enthusiastic.  Then, BMW took a cue from American manufacturers,
    The BMW 2002 Production Run

    The BMW 2002 Production Run

    BMW 02 series are like the original Volkswagen Beetles in one way (besides both being German classic cars)—throughout their long production, they all essentially look alike—at least to the uninitiated:  small, boxy, rear-wheel drive, two-door sedan.  Aficionados know better.   Not only were there three other body styles—none, unfortunately, exported to the US—but there were some significant visual and mechanical changes over their eleven-year production run.   I’ve extracted t
  • Upcoming Events

  • Supporting Vendors

×
×
  • Create New...