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Forum: maintenance & nonperformance 06-14-2019, 10:10 PM
Replies: 10
Views: 450
Posted By bobxyz
That's fun! Thanks for the info from...

That's fun! Thanks for the info from RS-Elektronik. :)



I was puzzled by why someone would go to all the trouble of making a regulator with remote temperature sense, but then bury the...
Forum: maintenance & nonperformance 06-11-2019, 12:09 AM
Replies: 12
Views: 425
Posted By bobxyz
With the key off, measure resistance from the...

With the key off, measure resistance from the ground wire ring terminals (e.g. the crimp on ring terminal) to the battery - post. This should be ~0 ohms if it's making good contact to the manifold,...
Forum: maintenance & nonperformance 06-10-2019, 08:19 PM
Replies: 10
Views: 450
Posted By bobxyz
I don't have a copy of the greenbook you're...

I don't have a copy of the greenbook you're referencing, but I'll guess that it's from the late 70s / early 80s, and is talking about an early Electronic Voltage Regulator for the Alternator (or...
Forum: maintenance & nonperformance 06-09-2019, 04:57 PM
Replies: 10
Views: 581
Posted By bobxyz
When I replaced my rear axle (due to whining...

When I replaced my rear axle (due to whining diff), the salvage yard pulled one for me, and included the parking brake cables. I reused the original cables, but I think I remember seeing a hold down...
Forum: performance & modifications 06-08-2019, 04:05 PM
Replies: 31
Views: 1,223
Posted By bobxyz
Do you care about emissions? If not, you can go...

Do you care about emissions? If not, you can go with a wider variety of cams, and tradeoff worse idle for better higher rpm performance. Compared to swapping in a +T'd engine, swapping cams is...
Forum: maintenance & nonperformance 06-08-2019, 12:57 AM
Replies: 12
Views: 574
Posted By bobxyz
Spare salvage yard parts for the next 10 years

Let's say that I want to hold on to my '85 wagon for at least the next 10 years.

https://image.ibb.co/bt1KBK/spider-eyes.jpg

A couple years ago, there were a good number of 240s that came...
Forum: performance & modifications 06-08-2019, 12:25 AM
Replies: 31
Views: 1,223
Posted By bobxyz
^^^ agreed. The late factory 240 turbo...

^^^ agreed.

The late factory 240 turbo auto's had a 3.91 rear end. The 240 turbo manual's used 3.73. All the non-turbo auto's had a 3.73, so your converted auto will be the same gearing as the...
Forum: performance & modifications 06-07-2019, 02:37 PM
Replies: 31
Views: 1,223
Posted By bobxyz
Automatic or Manual? What turbo? How much low...

Automatic or Manual? What turbo? How much low speed / stop-n-go daily traffic?

Are you OK with running/shifting at higher RPMs most of the time so that you can have best high RPM performance, or...
Forum: maintenance & nonperformance 06-05-2019, 08:19 PM
Replies: 69
Views: 1,713
Posted By bobxyz
Here's pictures of the AC parts from a '93 240...

Here's pictures of the AC parts from a '93 240 (click on pic for full size)
https://i.ibb.co/v3GfbQr/93-AC-parts3.jpg (https://ibb.co/v3GfbQr) https://i.ibb.co/kcmrY0d/93-AC-parts1.jpg...
Forum: maintenance & nonperformance 06-03-2019, 08:29 AM
Replies: 6
Views: 350
Posted By bobxyz
Check that the coolant temp sensor connector is...

Check that the coolant temp sensor connector is fully seated, and that it's the right connector. On a '93, I don't know if it's possible to accidentally swap a couple connectors, but it is possible...
Forum: aftermarket engine management 06-02-2019, 09:59 PM
Replies: 11
Views: 439
Posted By bobxyz
Do you see any voltage change on 32-cam in? A...

Do you see any voltage change on 32-cam in? A tiny change would be more encouraging than none at all.

Sounds like your MS3X Expansion Card has problems. You could unplug the 37-pin expansion...
Forum: maintenance & nonperformance 06-02-2019, 09:41 PM
Replies: 2
Views: 314
Posted By bobxyz
1) the rail is just for mounting things, but...

1) the rail is just for mounting things, but there may be nearby ring terminals that get screwed down to the body. If the screw is uncoated, it should still make an OK connection. You could test...
Forum: aftermarket engine management 06-02-2019, 09:33 PM
Replies: 11
Views: 439
Posted By bobxyz
When you say you bypassed the internal pullup,...

When you say you bypassed the internal pullup, what do you mean? Pulled the jumper, or added your own pullup resistor?

If you measure the voltage (to ground) of the cam/crank pins on the CAS, and...
Forum: maintenance & nonperformance 06-02-2019, 09:30 PM
Replies: 2
Views: 227
Posted By bobxyz
Find a copy of the '93 240 wiring greenbook -...

Find a copy of the '93 240 wiring greenbook - TP32352-1 1993 240 Wiring Diagrams. Pg 10 of 133 shows the original radio connector. If you're sure that this is the same as your missing connector,...
Forum: maintenance & nonperformance 05-31-2019, 09:39 PM
Replies: 146
Views: 3,607
Posted By bobxyz
Checking and adjusting idle mixture with the...

Checking and adjusting idle mixture with the "dwell" test connector and a wideband O2 sensor is pretty easy. The hardest part may be finding the connector in the engine bay, and removing the...
Forum: maintenance & nonperformance 05-31-2019, 01:21 PM
Replies: 146
Views: 3,607
Posted By bobxyz
Great progress! Your new videos sound so much...

Great progress! Your new videos sound so much better. When I tuned up my '85, I think I went through all the steps maybe three times to get it running well. First time through caught the big...
Forum: maintenance & nonperformance 05-31-2019, 11:29 AM
Replies: 9
Views: 592
Posted By bobxyz
That's some funny symptoms. Fuses 7,8,9,10 are...

That's some funny symptoms. Fuses 7,8,9,10 are all tied together on one side, with fused sides feeding brake lights, courtesy lights, hazard lights, radio, power windows. The common side has a big...
Forum: maintenance & nonperformance 05-30-2019, 01:40 PM
Replies: 146
Views: 3,607
Posted By bobxyz
Here's a screen capture from your video when...

Here's a screen capture from your video when running at idle:

https://i.ibb.co/9ptXDqq/78-242-k-jet-pressure.jpg

The reading is bad -- either you have the pressure tester valve closed, which...
Forum: website & board 05-29-2019, 07:51 PM
Replies: 3
Views: 224
Posted By bobxyz
After logging in, click on "User CP" just under...

After logging in, click on "User CP" just under the topmost "Turbo" on the forum home page. There's a "Edit Options" menu half way down, and one of the choices is to "Save a copy of sent messages in...
Forum: maintenance & nonperformance 05-29-2019, 07:42 PM
Replies: 146
Views: 3,607
Posted By bobxyz
OK, is the pressure tester valve closed in the...

OK, is the pressure tester valve closed in the video? ~4.5 kp/cm^2, or ~4.4bar, is too high for warm control pressure.
Forum: maintenance & nonperformance 05-29-2019, 03:37 PM
Replies: 146
Views: 3,607
Posted By bobxyz
Hmm, I'd believe 1100rpm idle, but 550 seems too...

Hmm, I'd believe 1100rpm idle, but 550 seems too low for your video. Did you have the tach/dwell meter on 4-cyl or 8-cyl setting? If your meter doesn't have a 4-cyl setting, you need to double the...
Forum: maintenance & nonperformance 05-29-2019, 12:01 PM
Replies: 146
Views: 3,607
Posted By bobxyz
I didn't read the thread, but have a few comments...

I didn't read the thread, but have a few comments on the video (if not already mentioned before):
- Your idle speed sounds about right -- it's certainly faster than the 200rpm on the dash gauge. If...
Forum: maintenance & nonperformance 05-24-2019, 11:52 PM
Replies: 73
Views: 3,062
Posted By bobxyz
https://i.imgur.com/oa9QpQ9l.png As weird as...

https://i.imgur.com/oa9QpQ9l.png

As weird as that ragged hole / crack / gash looks, it's normal for 240 heads.

To embed pictures from imgur, go to imgur, right click on the picture and select...
Forum: maintenance & nonperformance 05-23-2019, 11:26 PM
Replies: 11
Views: 528
Posted By bobxyz
FYI - there's partial datasheets for the 012 and...

FYI - there's partial datasheets for the 012 and 016 AMM available at: http://ipdown.net/documents.html, but neither one has a precise engine stalled voltage.
Forum: performance & modifications 05-23-2019, 09:55 PM
Replies: 25
Views: 3,636
Posted By bobxyz
After some side discussions, and more reading...

After some side discussions, and more reading (https://forums.tbforums.com/showthread.php?t=191366), my curiosity won out and I unplugged the VSS wire last night, then went for a leisurely 20 minute...
Forum: maintenance & nonperformance 05-23-2019, 12:22 AM
Replies: 17
Views: 617
Posted By bobxyz
My guess is that the big fat ground wire from the...

My guess is that the big fat ground wire from the alternator to the engine block is bad. This would match your good voltage when battery is disconnected (alternator not under much load), but bad...
Forum: maintenance & nonperformance 05-20-2019, 11:16 PM
Replies: 5
Views: 426
Posted By bobxyz
From the passenger footwell, take off the center...

From the passenger footwell, take off the center console side cover, stick your head all the way forward and, with a flashlight, look above the tunnel at the front of the air box. You should see the...
Forum: performance & modifications 05-19-2019, 05:21 PM
Replies: 9
Views: 636
Posted By bobxyz
My LH2.4 swapped B21FT seems to run fine here in...

My LH2.4 swapped B21FT seems to run fine here in Colorado -- 5400 foot elevation, so ~20% less oxygen/fuel than sea level. The LH2.4 uses a MAF or AMM to measure incoming air mass. This will...
Forum: performance & modifications 05-18-2019, 03:57 PM
Replies: 9
Views: 636
Posted By bobxyz
Read these: ...

Read these:
https://forums.turbobricks.com/showpost.php?p=5919035&postcount=14

https://forums.tbforums.com/showthread.php?t=327942
Forum: maintenance & nonperformance 05-09-2019, 09:21 PM
Replies: 25
Views: 827
Posted By bobxyz
Instead of the Kustom relay mods, I'd really...

Instead of the Kustom relay mods, I'd really recommend getting a 2nd junkyard relay and swap it in now. If it works, leave it in place and put the original in the trunk as a spare. In the future,...
Forum: performance & modifications 05-08-2019, 08:51 PM
Replies: 2
Views: 372
Posted By bobxyz
AFAIK, the IAC can be oriented any way you want...

AFAIK, the IAC can be oriented any way you want and direction of flow doesn't matter. It just passes extra air to provide a good idle. Internally, it's a spring loaded cylinder that rotates...
Forum: performance & modifications 05-08-2019, 08:37 PM
Replies: 8
Views: 518
Posted By bobxyz
Just guessing here.... The 2 inner bearings...

Just guessing here....

The 2 inner bearings are _very_ close in diameter. Maybe someone installed them in the wrong locations, and then "machined" both of them in place to get the aux shaft to...
Forum: performance & modifications 05-07-2019, 08:02 PM
Replies: 11
Views: 461
Posted By bobxyz
Was it Cinco De Mayo Gremlins?

Was it Cinco De Mayo Gremlins?
Forum: maintenance & nonperformance 05-07-2019, 08:00 PM
Replies: 34
Views: 1,243
Posted By bobxyz
Oh my, that's too bad.... As a consolation prize...

Oh my, that's too bad.... As a consolation prize [???], your video is great. Start at 2:55 if you're just gawking....
Forum: performance & modifications 05-07-2019, 07:45 PM
Replies: 11
Views: 461
Posted By bobxyz
Unplug the CAS connector and, with key on,...

Unplug the CAS connector and, with key on, measure the voltages at the CAS connector:
- from CAS black wire, to battery +12v post (should be 12v)
- from CAS red wire, to battery - post (should be...
Forum: maintenance & nonperformance 05-07-2019, 01:52 PM
Replies: 7
Views: 315
Posted By bobxyz
There should be 2 blue wires on coil +12v. One...

There should be 2 blue wires on coil +12v. One comes from a body harnesses by the driver's fender and supplies +12 from the ignition switch. The 2nd wire goes to the ignition module, using part of...
Forum: performance & modifications 05-07-2019, 09:19 AM
Replies: 11
Views: 461
Posted By bobxyz
From:...

From: http://forums.turbobricks.com/showpost.php?p=3519662&postcount=4
White = Cam [should go to VR2-]
Yellow = Crank [should go to VR1-]
Try swapping and see if it fixes the problem. You can...
Forum: maintenance & nonperformance 05-03-2019, 07:51 PM
Replies: 37
Views: 1,506
Posted By bobxyz
Will it idle without assistance? If so, try...

Will it idle without assistance? If so, try wiggling all the wires that you can get to. It sounds like a bad connection, or a short, especially since it seemed to show up with vibration.
Forum: performance & modifications 05-02-2019, 08:01 PM
Replies: 2
Views: 371
Posted By bobxyz
I've seen a couple people on this forum mention...

I've seen a couple people on this forum mention speeduino, but I haven't seen anyone post that they've successfully finished the project.

A B230FT with LH2.4/EZ116K uses a 60-2 tooth flywheel with...
Forum: maintenance & nonperformance 05-01-2019, 09:43 PM
Replies: 2
Views: 257
Posted By bobxyz
You need to adjust the length of the linkage...

You need to adjust the length of the linkage between end of shift lever and tranny gear selector lever. Find a manual (Bentley or Greenbook) to get the lengthen/shorten directions correct. You...
Forum: maintenance & nonperformance 05-01-2019, 09:40 PM
Replies: 5
Views: 313
Posted By bobxyz
Watch the youtube video linked to on the...

Watch the youtube video linked to on the EuroPartsHouse page. It made me feel better about giving it a try, instead of one of the other alternatives. Haven't received/installed it yet.
Forum: maintenance & nonperformance 05-01-2019, 05:07 PM
Replies: 146
Views: 3,607
Posted By bobxyz
Was the engine running when you made your...

Was the engine running when you made your measurements? (I don't have the diag procedure here.) The fuel pump relay senses the tach signal from the coil and won't turn on until engine starts...
Forum: maintenance & nonperformance 04-30-2019, 08:24 PM
Replies: 8
Views: 465
Posted By bobxyz
^^^ you can also do it by hand with a socket...

^^^ you can also do it by hand with a socket wrench and 6" extension if you have good stamina. Peek in through the oil cap and keep cranking until you see the valve buckets fill up with oil.

For...
Forum: maintenance & nonperformance 04-30-2019, 08:13 PM
Replies: 8
Views: 393
Posted By bobxyz
Download the TP31058 1987 740 wiring diagram...

Download the TP31058 1987 740 wiring diagram greenbook from here:
https://web.archive.org/web/20161107212009/http://volvowiringdiagrams.com/?dir=volvo/740%20Wiring%20Diagrams

On page 28+29 (of...
Forum: events 04-26-2019, 10:34 PM
Replies: 188
Views: 17,424
Posted By bobxyz
Please post pics of the grill action.... Can't...

Please post pics of the grill action.... Can't let the Davis Folks have all the fun :-P
Forum: maintenance & nonperformance 04-26-2019, 10:28 PM
Replies: 3
Views: 359
Posted By bobxyz
Looks like Bentley is confused. My Bentley says...

Looks like Bentley is confused. My Bentley says check between 23 and 20, but the 23 is pasted in in a slightly different font. Looking at a greenbook, the correct test is between pins 10 and 23,...
Forum: performance & modifications 04-26-2019, 12:17 AM
Replies: 25
Views: 3,636
Posted By bobxyz
Followup: I've been running my LH2.4 swapped...

Followup:
I've been running my LH2.4 swapped '85 GLT AW-71 K-Jet for a while now with no weird idle issues. Generating the LH2.4 VSS signal from the Cable Speedometer Cruise Sensor seems to work...
Forum: maintenance & nonperformance 04-25-2019, 04:01 PM
Replies: 61
Views: 2,393
Posted By bobxyz
Are you using a hardware store water pressure...

Are you using a hardware store water pressure gauge? Those things are notorious for failing/sticking after sitting around for a couple years. Maybe your fuel pressure is OK but the gauge is bad?
Forum: maintenance & nonperformance 04-25-2019, 01:07 AM
Replies: 9
Views: 394
Posted By bobxyz
I'm using the Lambda Service Light on my '85...

I'm using the Lambda Service Light on my '85 K-jet -> LH2.4 for CEL. This is the light on the far left that's driven by a separate little box and mechanical cable to indicate that the Lambda O2...
Forum: maintenance & nonperformance 04-25-2019, 12:55 AM
Replies: 5
Views: 496
Posted By bobxyz
The main headlight step relay has dual functions...

The main headlight step relay has dual functions -- it selects between high and low beams when on, and flashes the high beams when pulling back on the turn signal stalk. I think these 2 functions...
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