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Forum: maintenance & nonperformance 07-31-2021, 12:20 PM
Replies: 16
Views: 332
Posted By bobxyz
Try:...

Try: http://forums.turbobricks.com/showpost.php?p=6081738&postcount=5
or search for 134a at ozvolvo.org/archive
Forum: aftermarket engine management 07-29-2021, 10:03 PM
Replies: 32
Views: 8,532
Posted By bobxyz
Your high voltage readings on +5Vref and on +12V...

Your high voltage readings on +5Vref and on +12V are still very strange.

For your Fuel Pump concerns, you may just be seeing the resistance of the main pump. I'd guess that the main pump is only...
Forum: maintenance & nonperformance 07-29-2021, 09:17 AM
Replies: 5
Views: 367
Posted By bobxyz
There's normally a schrader valve in the switch...

There's normally a schrader valve in the switch port of the accumulator/dryer so that you can change the switch without losing much refrigerant. I have no idea how well they work after many years of...
Forum: maintenance & nonperformance 07-27-2021, 07:13 PM
Replies: 4
Views: 299
Posted By bobxyz
^^^ Thanks, that explains the mystery spring and...

^^^ Thanks, that explains the mystery spring and plunger that I found in a box of free craigslist parts, along with the main PS pump body.
Forum: maintenance & nonperformance 07-27-2021, 07:09 PM
Replies: 12
Views: 683
Posted By bobxyz
Do you have an external voltage regulator on your...

Do you have an external voltage regulator on your alternator?

The '81 greenbook drawings (TP30316 from ozvolvo.org/archive) show it mounted by the passenger fender next to the radiator overflow...
Forum: performance & modifications 07-27-2021, 09:12 AM
Replies: 9
Views: 577
Posted By bobxyz
What engine management system does it have? Is...

What engine management system does it have? Is it K-Jet, Motronic, or LH? (I'm guessing Motronic.) A good picture of the engine bay would help.
Forum: maintenance & nonperformance 07-22-2021, 08:40 PM
Replies: 8
Views: 933
Posted By bobxyz
I'd connect ECU-30 to anywhere on the ignition...

I'd connect ECU-30 to anywhere on the ignition switch 50 to starter wiring. I don't know if the LH2.4 ECU uses it for anything with a manual transmission. Maybe fault detection, for example,...
Forum: maintenance & nonperformance 07-21-2021, 06:47 PM
Replies: 8
Views: 933
Posted By bobxyz
The ECU needs a 12 pulse per axle rev speed...

The ECU needs a 12 pulse per axle rev speed signal. The speedometers for 48 tooth differentials convert to the 12 pulse per rev signal (essentially, they drop 3 out of 4 pulses); the speedometers...
Forum: maintenance & nonperformance 07-20-2021, 07:08 PM
Replies: 8
Views: 933
Posted By bobxyz
Yes, you can delete them. The ECU uses them to...

Yes, you can delete them. The ECU uses them to increase the idle speed when the AC is running.


Your speedo needs to match the 12 tooth or 48 tooth cage. There will be a number on the speedo...
Forum: maintenance & nonperformance 07-19-2021, 10:12 PM
Replies: 5
Views: 914
Posted By bobxyz
I'd get the diag box working first -- it may not...

I'd get the diag box working first -- it may not help, or it might mislead you, but it's a good start. If press the button, does the LED turn on? If not, you're missing +12v or ground at the box. ...
Forum: performance & modifications 07-16-2021, 10:39 PM
Replies: 397
Views: 47,102
Posted By bobxyz
I realized that if I still had my VW Manx [style]...

I realized that if I still had my VW Manx [style] dune buggy, that this motor and controller would be in my garage already. I'd think the Manx would be a near perfect candidate for this setup --...
Forum: maintenance & nonperformance 07-16-2021, 06:02 PM
Replies: 8
Views: 834
Posted By bobxyz
If the cable really isn't making good contact,...

If the cable really isn't making good contact, just shove on it from the engine compartment to seat it further.

When you say "speedo hole" I'm assuming the speedometer in the cluster, and not the...
Forum: performance & modifications 07-16-2021, 05:57 PM
Replies: 397
Views: 47,102
Posted By bobxyz
I haven't kept up with this thread but, as a...

I haven't kept up with this thread but, as a point of reference, this showed up on the local craigslist yesterday:

Netgain WarP 9 DC Motor for Electric Vehicle (EV) - $200 (Longmont CO)...
Forum: maintenance & nonperformance 07-15-2021, 08:39 PM
Replies: 13
Views: 2,101
Posted By bobxyz
The service light is driven by the odometer and...

The service light is driven by the odometer and has absolutely no effect on engine performance (other than whatever slight effect old oil might have). There's a spring loaded gear that turns _very_...
Forum: maintenance & nonperformance 07-15-2021, 07:01 PM
Replies: 13
Views: 2,101
Posted By bobxyz
I think the late 240's have a Service light that...

I think the late 240's have a Service light that comes on every 5K miles (or whatever) to change the oil. It's reset by a lever on the back of the speedo. The CEL Check Engine Light, also called a...
Forum: maintenance & nonperformance 07-15-2021, 06:54 PM
Replies: 49
Views: 17,018
Posted By bobxyz
Try this A/C thread:...

Try this A/C thread: http://forums.turbobricks.com/showthread.php?t=330298&page=3
Forum: aftermarket engine management 07-12-2021, 09:41 PM
Replies: 16
Views: 853
Posted By bobxyz
Those "EZ116K Modifications" are from one of my...

Those "EZ116K Modifications" are from one of my old posts. I don't know if anyone ever followed those instructions completely and successfully -- I decided to stay with LH2.4 once I figured out how...
Forum: aftermarket engine management 07-12-2021, 07:13 PM
Replies: 16
Views: 853
Posted By bobxyz
It sounds like your sensor isn't wired correctly....

It sounds like your sensor isn't wired correctly.

The 2-pin LH2.4 sensor is actually 2 separate sensors in one body. One pin connects to the EZK, the other pin connects to the ECU, and the...
Forum: aftermarket engine management 07-10-2021, 01:24 PM
Replies: 16
Views: 2,068
Posted By bobxyz
If you want to poke around with the MS...

If you want to poke around with the MS capabilities, you can download the latest firmware and the lite (free) version of TunerStudio, then open up TunerStudio on you PC desktop and wander though the...
Forum: performance & modifications 07-08-2021, 11:01 PM
Replies: 397
Views: 47,102
Posted By bobxyz
That's a sensorless 3-phase motor. You want an...

That's a sensorless 3-phase motor. You want an ebay "brushless dc motor 3 phase hall", the hall sensor being the key difference. The hall sensors tell the motor controller chip what position the...
Forum: aftermarket engine management 07-08-2021, 09:00 AM
Replies: 16
Views: 2,068
Posted By bobxyz
The original MegaSquirt I firmware was written in...

The original MegaSquirt I firmware was written in assembly, but all the newer MSextra firmware is C code. In the past, the source code was released, but they may not be releasing it anymore due to...
Forum: maintenance & nonperformance 07-03-2021, 03:50 PM
Replies: 33
Views: 7,775
Posted By bobxyz
The 0332014114 relay is a real oddball and it's...

The 0332014114 relay is a real oddball and it's highly unlikely that anyone makes a replacement today. Easiest is to ask in wanted for good used, then swap it in and keep your original as a known...
Forum: maintenance & nonperformance 07-02-2021, 08:34 PM
Replies: 16
Views: 1,277
Posted By bobxyz
Here's what my LH2.4 converted B21FT looks like...

Here's what my LH2.4 converted B21FT looks like <strike>now</strike> one small hose clamp ago (click for bigger):
https://i.ibb.co/Yp5X52F/B21-FT-with-LH2-4-EFI-Intake.jpg (https://ibb.co/Yp5X52F)
...
Forum: maintenance & nonperformance 07-02-2021, 06:20 PM
Replies: 16
Views: 1,277
Posted By bobxyz
When I got my '85 GLT, the AW71 transmission had...

When I got my '85 GLT, the AW71 transmission had supposedly been rebuilt somewhat recently. If you look at the kickdown cable bracket (click for bigger),
https://i.ibb.co/L6f66PP/IMG-0433.jpg...
Forum: maintenance & nonperformance 07-02-2021, 05:56 PM
Replies: 33
Views: 7,775
Posted By bobxyz
Page 61 of Volvo Greenbook TP111042 from here:...

Page 61 of Volvo Greenbook TP111042 from here: https://ozvolvo.org/archive/
says that the Bosch 0332014114 relay has been superseded by 0332015009, which looks like a common variety of 5-pin relays.
Forum: performance & modifications 07-02-2021, 04:32 PM
Replies: 11
Views: 1,617
Posted By bobxyz
This thread may be useful:...

This thread may be useful: https://forums.turbobricks.com/showthread.php?t=336694

Do you have a Volvo T3 turbo with the stepped flange, or an aftermarket T3 (or T3/T4) with a flat flange, or the...
Forum: performance & modifications 06-23-2021, 07:02 PM
Replies: 5
Views: 1,774
Posted By bobxyz
What does your charcoal canister look like? ...

What does your charcoal canister look like?

The one on my 240 has a tank port on top, an open (atmosphere) port on bottom, plus a purge valve assembly on top. The purge valve has a small and...
Forum: performance & modifications 06-19-2021, 03:05 PM
Replies: 397
Views: 47,102
Posted By bobxyz
Thanks, that setup makes sense and is much easier...

Thanks, that setup makes sense and is much easier than converting to a DBW throttle. As you say, tuning may be difficult. If it helps, in theory, you can tune MegaSquirt to do accel enrichment...
Forum: performance & modifications 06-18-2021, 02:38 PM
Replies: 397
Views: 47,102
Posted By bobxyz
Can you tune a hybrid setup if the gas engine...

Can you tune a hybrid setup if the gas engine uses a traditional cable actuated throttle body? Seems like it would be pretty difficult since the airflow isn't electronically adjustable, and the...
Forum: performance & modifications 06-18-2021, 02:36 AM
Replies: 397
Views: 47,102
Posted By bobxyz
Switching directions here, what are the...

Switching directions here, what are the possibilities for adding an e-alternator for better acceleration and better MPG? Let's assume that just the alternator is replaced, along with a separate...
Forum: performance & modifications 06-18-2021, 12:51 AM
Replies: 27
Views: 4,435
Posted By bobxyz
From my yellowing 1985 GLT Owner's Manual: ...

From my yellowing 1985 GLT Owner's Manual:

https://i.ibb.co/xXj0rBS/85-GLT-Oil-Warning-Light.jpg

https://i.ibb.co/rFCkScW/85-GLT-Oil-Warning-Gauge.jpg

My original ~350K miles B21FT engine...
Forum: performance & modifications 06-16-2021, 03:16 PM
Replies: 397
Views: 47,102
Posted By bobxyz
Wow, you folks have been busy. For everyone who...

Wow, you folks have been busy. For everyone who is contributing clear and useful information, THANK YOU! It's always great to learn new things from those who are willing to share and who can teach...
Forum: performance & modifications 06-15-2021, 11:21 PM
Replies: 397
Views: 47,102
Posted By bobxyz
OK, let's talk topology. Here's your first...

OK, let's talk topology. Here's your first recommendation:



This is the same exact topology that I referenced. It may look a bit different in the datasheet (page 18) because the datasheet...
Forum: performance & modifications 06-15-2021, 03:05 PM
Replies: 397
Views: 47,102
Posted By bobxyz
I'd love to know what an actual expert would say...

I'd love to know what an actual expert would say about HK's recommended controller chip and example designs.

For those following this thread with access to real EV Inverter design engineers, and...
Forum: performance & modifications 06-15-2021, 01:25 PM
Replies: 397
Views: 47,102
Posted By bobxyz
I'm at work so this will be brief. HK, cut...

I'm at work so this will be brief.

HK, cut the crap. Quit recommending that hobbyists make their own high voltage motor controllers using ebay amplifier modules, 30 year old small motor...
Forum: performance & modifications 06-14-2021, 12:11 AM
Replies: 397
Views: 47,102
Posted By bobxyz
It's way over budget, but here are some really...

It's way over budget, but here are some really rough and optomistic cost guesses to convert a 240/740/940 RWD brick to a very basic full EV using a donor Lexus GS450H.

Let's start with a salvage...
Forum: performance & modifications 06-12-2021, 12:31 PM
Replies: 397
Views: 47,102
Posted By bobxyz
That chip and evaluation board are for open loop...

That chip and evaluation board are for open loop control of small motors, not for automotive traction motors. Think cordless drill, handheld vacuum cleaner, or toy RC car.
Forum: performance & modifications 06-12-2021, 12:39 AM
Replies: 397
Views: 47,102
Posted By bobxyz
I was curious about the Lexus GS450H...

I was curious about the Lexus GS450H possibilities so I did a little more surfing. My rough understanding is as follows.

The Lexus ~2006-2011 GS450H is RWD hybrid luxury sedan and uses a 6-cyl...
Forum: maintenance & nonperformance 06-11-2021, 08:55 PM
Replies: 21
Views: 3,097
Posted By bobxyz
Clip a meter or a test light to the blue coil...

Clip a meter or a test light to the blue coil power wire and a nearby ground. Check that you have +12volts when you turn the key on AND while cranking. If the ignition switch is flakey, it might...
Forum: maintenance & nonperformance 06-11-2021, 06:50 PM
Replies: 8
Views: 2,128
Posted By bobxyz
What do the rear turn signals, and side markers...

What do the rear turn signals, and side markers (if you have them), do? If you find a bulb that's not blinking at all, it might be shorted internally causing the relay to short cycle. You can try...
Forum: maintenance & nonperformance 06-11-2021, 09:06 AM
Replies: 4
Views: 1,542
Posted By bobxyz
The sensor determines when the fan turns on. ...

The sensor determines when the fan turns on. From your brickboard post, a '91 R12 sensor will turn on sooner (at a lower pressure) than a '93 R134a sensor. The fan turning on earlier won't hurt...
Forum: maintenance & nonperformance 06-10-2021, 11:38 PM
Replies: 4
Views: 1,542
Posted By bobxyz
See last picture (click for bigger) and comments...

See last picture (click for bigger) and comments here: http://forums.turbobricks.com/showpost.php?p=5994144&postcount=63

Currently, I don't have a front A/C electric fan in my '85 (mechanical fan...
Forum: performance & modifications 06-10-2021, 08:47 PM
Replies: 397
Views: 47,102
Posted By bobxyz
Is the Lexus GS450H gearbox part # 263241762 ? ...

Is the Lexus GS450H gearbox part # 263241762 ? If so, those seem pretty $$$ reasonable on ebay: https://www.ebay.com/b/Complete-Auto-Transmissions-for-Lexus-GS450h/171115/bn_20971871

Wonder how...
Forum: maintenance & nonperformance 06-10-2021, 07:47 PM
Replies: 13
Views: 2,107
Posted By bobxyz
Automotive Belt Sander (or sometimes called a...

Automotive Belt Sander (or sometimes called a Belt Surfacer, or Platen Grinder) in action: https://www.youtube.com/watch?v=_X091HmGt7M
Forum: performance & modifications 06-07-2021, 09:04 AM
Replies: 5
Views: 2,078
Posted By bobxyz
Either speedo will work. Are you going to mount...

Either speedo will work. Are you going to mount it in the main cluster? If so, I'd pick the easiest to adapt/mount.

Yes, you want the 12 pulse output for the LH2.4 VSS wire. If it's not...
Forum: aftermarket engine management 06-05-2021, 02:23 PM
Replies: 37
Views: 10,266
Posted By bobxyz
The stuffed boards showed yesterday and they look...

The stuffed boards showed yesterday and they look nice! I'm really impressed - the design files were uploaded late a week ago Wednesday (5/26), and I have 10 fab'd and assembled boards in hand (6/4),...
Forum: aftermarket engine management 06-05-2021, 01:51 PM
Replies: 45
Views: 8,190
Posted By bobxyz
The datasheet doesn't say explicitly, but I'd...

The datasheet doesn't say explicitly, but I'd sure expect that the 15KHz is the tooth rate (i.e. 15000 rpm with a 60-tooth wheel). Odds are that the sensor will operate much faster, and that the...
Forum: performance & modifications 06-05-2021, 12:52 PM
Replies: 5
Views: 2,078
Posted By bobxyz
Ahh, another gem from Art. The '93 940 speedo...

Ahh, another gem from Art. The '93 940 speedo pins are:
1 - ground
2 - 48pulse output to ABS (unused for you)
3 - switched +12v power
4 - pulse input from VR differential sensor
5 -...
Forum: performance & modifications 06-03-2021, 09:29 AM
Replies: 397
Views: 47,102
Posted By bobxyz
^^^ Thanks! That's great info - I'll need to...

^^^ Thanks! That's great info - I'll need to spend some time looking up those parts. I guess an e-conversion on a TBricks budget, or most anyone's budget, is out of the question at this time. Do...
Forum: maintenance & nonperformance 06-03-2021, 09:19 AM
Replies: 30
Views: 6,887
Posted By bobxyz
Picture of disti alignment at TDC (it's off a tad...

Picture of disti alignment at TDC (it's off a tad - the hold-down bolt hole isn't quite centered in the picture). Notice the scribe mark in the edge of the disti housing versus the tip of the rotor:...
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