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Forum: maintenance & nonperformance 09-13-2019, 08:11 PM
Replies: 7
Views: 251
Posted By bobxyz
The bolts are still hanging out on my engine...

The bolts are still hanging out on my engine stand, and I just checked:
- the top 2 are blind holes, need 2x M12x1.75 3" long
- one bottom hole is open and threaded, need 1x M12x1.75" 3" long, or...
Forum: maintenance & nonperformance 09-13-2019, 01:23 PM
Replies: 17
Views: 472
Posted By bobxyz
Flushed and new orifice tube too? If the orifice...

Flushed and new orifice tube too? If the orifice tube is partially clogged, cooling will suffer and short cycling may occur.
Forum: maintenance & nonperformance 09-12-2019, 09:50 PM
Replies: 17
Views: 472
Posted By bobxyz
Here's a picture of the '93-only factory r134a...

Here's a picture of the '93-only factory r134a compressor (click for full size and zoom in):
https://thumb.ibb.co/gDeqzQ/93-AC-parts4.jpg (https://ibb.co/gDeqzQ)

The label says: "LUB. OIL: SK-20...
Forum: maintenance & nonperformance 09-12-2019, 07:19 PM
Replies: 17
Views: 472
Posted By bobxyz
I was thinking that you were one of the members...

I was thinking that you were one of the members who swapped in an entire r134a AC system from a '93 (orifice tube, not expansion valve). If so, the low pressure switch, with metric threads, should...
Forum: maintenance & nonperformance 09-12-2019, 11:04 AM
Replies: 17
Views: 472
Posted By bobxyz
Yes, that cycling is normal. Find an AC recharge...

Yes, that cycling is normal. Find an AC recharge tutorial on youtube that shows the high-side/low-side gauges and you'll see both pressures going up until the compressor kicks in, then the pressures...
Forum: maintenance & nonperformance 09-12-2019, 11:00 AM
Replies: 26
Views: 970
Posted By bobxyz
I'm wondering if there's some way that the...

I'm wondering if there's some way that the alternator is back powering the cluster. Next time the cluster is out, check the resistance across the fuse - should be ~0 ohms.

What exactly are the...
Forum: maintenance & nonperformance 09-12-2019, 12:12 AM
Replies: 14
Views: 553
Posted By bobxyz
When I said "center console" I meant the one...

When I said "center console" I meant the one between the seats that houses the parking brake lever, and the seat belt reminder light for the back seat passengers. Sorry for the confusion.
Forum: maintenance & nonperformance 09-11-2019, 10:00 PM
Replies: 26
Views: 970
Posted By bobxyz
Document page 70-71 (pdf page 37) of this...

Document page 70-71 (pdf page 37) of this greenbook (http://ipdown.net/docs/TP3933032_940_1997_1998_wiring_diagrams.pdf) shows that there is some sort of fuse (part # 11/41, on the back of the...
Forum: maintenance & nonperformance 09-07-2019, 12:33 PM
Replies: 14
Views: 553
Posted By bobxyz
For fuse #12, I looked briefly at the wiring...

For fuse #12, I looked briefly at the wiring diagrams and my top guess would be that the seat belt reminder light in the back of the center console has come loose and is shorting to ground.
Forum: maintenance & nonperformance 09-06-2019, 10:51 PM
Replies: 65
Views: 12,255
Posted By bobxyz
O-rings for 1993 240 AC

I ordered a kit of orings that was supposed to be correct for the '93 AC system. Some were correct, others were not included, so I ended up painstakingly figuring out all the needed O-rings for a...
Forum: maintenance & nonperformance 09-06-2019, 10:41 PM
Replies: 65
Views: 12,255
Posted By bobxyz
Mounting a 1993 AC Condenser in a 1985

I've been accumulating the parts to swap a '93 AC system into my '85 for several years and _finally_ have working AC! :)

I figure I'd update this post with more pics and info since this post...
Forum: maintenance & nonperformance 09-06-2019, 07:03 PM
Replies: 8
Views: 436
Posted By bobxyz
Those should be DUST boots, purely to keep road...

Those should be DUST boots, purely to keep road grime off the moving tie rod shafts. There should be NO fluid in the boots, or maybe just a little seepage over many weeks. If you're seeing more...
Forum: maintenance & nonperformance 09-06-2019, 05:46 PM
Replies: 33
Views: 653
Posted By bobxyz
Great, glad it's all back together. How's it run...

Great, glad it's all back together. How's it run now? Oh, and what year is it?

(I have no idea what I was looking at when I thought you had cruise -- I must have had someone else's KJet engine...
Forum: maintenance & nonperformance 09-05-2019, 11:09 PM
Replies: 4
Views: 320
Posted By bobxyz
If you're talking about the 2-pin connector that...

If you're talking about the 2-pin connector that comes from the sensor on the differential, it doesn't matter which way the 2 wires are connected (original or swapped is fine). Check that your...
Forum: maintenance & nonperformance 09-05-2019, 10:05 PM
Replies: 33
Views: 653
Posted By bobxyz
Let me see if I can find some pictures of my '85...

Let me see if I can find some pictures of my '85 GLT (from when it was K-Jet). Check back here in ~30 minutes.

Edit:
https://i.ibb.co/tH3fzpf/85-Turbo-KJet-Vacuum-Hose-Routing.jpg

...
Forum: maintenance & nonperformance 09-04-2019, 11:51 PM
Replies: 33
Views: 653
Posted By bobxyz
Pictures? The boost gauge hose should go...

Pictures?

The boost gauge hose should go directly to the intake manifold plenum with no check valves. There's a separate hose with a check valve that goes to an egg-carton-ish vacuum reservoir...
Forum: maintenance & nonperformance 09-03-2019, 11:48 PM
Replies: 42
Views: 8,793
Posted By bobxyz
3.5 year bump. Status update: After...

3.5 year bump.

Status update: After checking the backlash and finding it was OK, I ended up swapping the whole rear axle for a good junkyard 3.73 rear axle in the Spring of 2016. No more...
Forum: maintenance & nonperformance 09-03-2019, 07:54 PM
Replies: 8
Views: 436
Posted By bobxyz
Your picture looks like the vent hose on a ZF...

Your picture looks like the vent hose on a ZF rack? The hose just allows air to go from bellows to bellows as you turn. Otherwise, one bellows would be blowing out air past the boot, and the other...
Forum: performance & modifications 08-30-2019, 08:32 PM
Replies: 12
Views: 662
Posted By bobxyz
For reference, here are some pics of the oil...

For reference, here are some pics of the oil passage divot and head gasket teardrop (click for full size):

https://i.ibb.co/x16KmBt/B21-FT-Block.jpg (https://ibb.co/x16KmBt) ...
Forum: maintenance & nonperformance 08-29-2019, 12:18 AM
Replies: 22
Views: 1,187
Posted By bobxyz
^^^ could be. The stack of receipts shown in the...

^^^ could be. The stack of receipts shown in the original dealership pictures, or at least the older receipts, show a "68 3rd infantry rd" address in Fort Leavenworth KS.
Forum: maintenance & nonperformance 08-28-2019, 10:48 PM
Replies: 8
Views: 553
Posted By bobxyz
I don't have a 940 so I'm guessing on the door...

I don't have a 940 so I'm guessing on the door switch, but it seems like a good guess because both the courtesy lights and the chime use the switch, and it sounded like your courtesy lights were...
Forum: maintenance & nonperformance 08-28-2019, 10:40 PM
Replies: 4
Views: 637
Posted By bobxyz
This might help even though it's for a 240? The...

This might help even though it's for a 240? The AC compressor is the same for '93 240 and r134a 940s (the pulley size may be different) http://forums.turbobricks.com/showthread.php?t=348196
Forum: performance & modifications 08-27-2019, 10:05 PM
Replies: 5
Views: 645
Posted By bobxyz
Yes, you can pull them out of the tubing and move...

Yes, you can pull them out of the tubing and move them to the other side. A hair dryer, or a hot day in the sun, helps if your tubing is old and stiff. I think you need to extend/run a separate...
Forum: maintenance & nonperformance 08-27-2019, 09:59 PM
Replies: 8
Views: 553
Posted By bobxyz
For the chime, try removing and cleaning the...

For the chime, try removing and cleaning the driver's door-open switch, or swap it with a different door, and see if it fixes the issue.
Forum: maintenance & nonperformance 08-27-2019, 01:02 AM
Replies: 21
Views: 942
Posted By bobxyz
How did they determine #1 is dead? Compression...

How did they determine #1 is dead? Compression or leakdown test? If #1 is mis-firing or valves aren't sealing, it will dump O2 into the exhaust, which will show up on the WBO2 as lean (unburnt...
Forum: maintenance & nonperformance 08-26-2019, 08:40 PM
Replies: 22
Views: 1,187
Posted By bobxyz
Wow, I remember that wagon. It looked really...

Wow, I remember that wagon. It looked really nice until I went through the pictures carefully. IIRC, the rubber seal between the cowl and hood is half painted red, there's a receipt in the stack...
Forum: maintenance & nonperformance 08-17-2019, 01:46 PM
Replies: 22
Views: 936
Posted By bobxyz
AFAIK, the electronic speedometers are the same...

AFAIK, the electronic speedometers are the same cruise versus non-cruise.

Cruise control uses a separate control box and connects to the VSS Vehicle Speed Signal from the back of the...
Forum: maintenance & nonperformance 08-17-2019, 12:36 AM
Replies: 59
Views: 6,704
Posted By bobxyz
Sorry, I didn't understand your diagram -- is...

Sorry, I didn't understand your diagram -- is there a relay that MS turns on to enable&power AC? If so, the easiest is to wire the accumulator switch in series to the compressor clutch from the...
Forum: performance & modifications 08-16-2019, 03:31 PM
Replies: 6
Views: 727
Posted By bobxyz
If you have a 86+, it will use a 3-wire O2...

If you have a 86+, it will use a 3-wire O2 sensor. One of the wires is the signal, the other 2 are power/ground for a built-in heater. The heater gets the sensor up to temperature faster so that...
Forum: maintenance & nonperformance 08-16-2019, 01:06 AM
Replies: 59
Views: 6,704
Posted By bobxyz
I'm still working on retrofitting a '93 system...

I'm still working on retrofitting a '93 system into my '85 (fuel pumps and seats took priority).

There are 4 main functions within the orifice tube AC system:

1) When the snowflake button is...
Forum: maintenance & nonperformance 08-15-2019, 01:02 AM
Replies: 29
Views: 1,247
Posted By bobxyz
By hand, rotate the engine to #1 TDC and check...

By hand, rotate the engine to #1 TDC and check that:
- disti rotor points to #1 plug
- cam (thru oil cap) is "perky" on #1 valves
- plug wires as disti rotates are cyls 1-3-4-2
Forum: performance & modifications 08-14-2019, 12:31 AM
Replies: 3
Views: 573
Posted By bobxyz
Ignition timing needs to be adjusted for rpm and...

Ignition timing needs to be adjusted for rpm and load.

At a fixed load, it takes a fixed amount of time to ignite the mixture and reach peak pressure. At low RPM, the pistons are moving slower...
Forum: performance & modifications 08-12-2019, 08:59 PM
Replies: 22
Views: 1,529
Posted By bobxyz
Thanks, that's interesting. Here are some...

Thanks, that's interesting. Here are some pictures (click for bigger size). When open, there are 3 roughly 1/8" slots under the spring valve. Not much area for pressure relief, but I guess that...
Forum: maintenance & nonperformance 08-11-2019, 03:26 PM
Replies: 10
Views: 648
Posted By bobxyz
Rock Auto has the NTK 25002 for $68, but being...

Rock Auto has the NTK 25002 for $68, but being rock auto, it may have been kicking around for a while. AFAIK, there's nothing to age in the O2 sensors during storage.

[BTW: never use electronic...
Forum: maintenance & nonperformance 08-09-2019, 06:55 PM
Replies: 8
Views: 651
Posted By bobxyz
See instructions here for...

See instructions here for disassembly/re-assembly: http://cleanflametrap.com/tony/index.htm

(Note: for Step B of Bottom instructions, you can insert a screwdriver from the back and simply tap it...
Forum: maintenance & nonperformance 08-08-2019, 09:31 PM
Replies: 5
Views: 513
Posted By bobxyz
If you keep the 240 axle and differential, the...

If you keep the 240 axle and differential, the speed sensor goes through the back of the diff cover and measures the rate of axle rotation. With this, the transmission gearing, and diff gearing,...
Forum: aftermarket engine management 08-08-2019, 08:54 PM
Replies: 3
Views: 458
Posted By bobxyz
All looks OK. Hope the JY disti does the trick. ...

All looks OK. Hope the JY disti does the trick. For Trigger Return mode, you need to rotate the distributor itself to get the desired timing during cranking (e.g. 10degree), as checked with a...
Forum: maintenance & nonperformance 08-08-2019, 08:43 PM
Replies: 5
Views: 513
Posted By bobxyz
Lookup your tire size and find the revs/mile. For...

Lookup your tire size and find the revs/mile. For instance, 195-60R15's are 833 revs/mile.
https://tiresize.com/tiresizes/195-60R15.htm

Then multiply by the number of tone ring teeth in the...
Forum: performance & modifications 08-05-2019, 07:47 PM
Replies: 9
Views: 859
Posted By bobxyz
I used to remember this stuff, but it's been a...

I used to remember this stuff, but it's been a few years now... It may be in this thread: The official DSM CAS information and install guide (http://forums.turbobricks.com/showthread.php?t=224740)...
Forum: maintenance & nonperformance 08-05-2019, 07:38 PM
Replies: 4
Views: 459
Posted By bobxyz
If the cluster arrows are lighting up when the...

If the cluster arrows are lighting up when the hazard switch is on, then the cluster wiring for the turn signals is OK. I'd chase the wiring from the stalk and see if it has a poor connection or...
Forum: maintenance & nonperformance 08-04-2019, 07:59 PM
Replies: 6
Views: 726
Posted By bobxyz
Connectors are notorious for bad reliability. ...

Connectors are notorious for bad reliability. Whacking the dash would wiggle the connector and could temporarily make it better. Whacking the dash does nothing for dried up caps.

The easy thing...
Forum: maintenance & nonperformance 08-04-2019, 07:45 PM
Replies: 11
Views: 722
Posted By bobxyz
When I bought my wagon, there was a whine from...

When I bought my wagon, there was a whine from the differential, at all speeds and not much change from accelerating/coasting/decelerating. I eventually swapped the whole axle assy for a good...
Forum: aftermarket engine management 08-02-2019, 08:31 PM
Replies: 99
Views: 10,534
Posted By bobxyz
I'm still wondering if your VE spike around 3K...

I'm still wondering if your VE spike around 3K rpm is due to cam overlap and firing the injectors just before, or during, intake valve opening. If your fuel is going in one valve and immediately out...
Forum: maintenance & nonperformance 08-01-2019, 01:39 AM
Replies: 29
Views: 1,577
Posted By bobxyz
Correct - you can find a tire calculator, enter...

Correct - you can find a tire calculator, enter your tire size and get the number of tire revs/km (around 510). Multiply by 48 teeth and you have the number of pulses per km (around 24400). ...
Forum: maintenance & nonperformance 07-31-2019, 08:16 PM
Replies: 29
Views: 1,577
Posted By bobxyz
Try posting in wanted for "Electronics Hobbyist...

Try posting in wanted for "Electronics Hobbyist with Capacitors" in Canada - those style capacitors, through hole versus little surface mount chips, mostly disappeared from commercial products in the...
Forum: maintenance & nonperformance 07-31-2019, 06:52 AM
Replies: 29
Views: 1,577
Posted By bobxyz
Good find, it's not a failure I'd expect. ...

Good find, it's not a failure I'd expect. There's still hope to resurrect the 2nd board (or a future speedo).

Are there any markings on the blue cap? If there's a + or a dot or a vertical bar,...
Forum: maintenance & nonperformance 07-30-2019, 11:47 PM
Replies: 29
Views: 1,577
Posted By bobxyz
Try removing C16 - the blue cap between where C2...

Try removing C16 - the blue cap between where C2 was and where 6505 was -- it's the only component left that could cause a direct short from R15 to ground. If this isn't it, then there must be a...
Forum: performance & modifications 07-30-2019, 08:11 PM
Replies: 22
Views: 1,529
Posted By bobxyz
My original '85 B21FT intercooled KJet engine...

My original '85 B21FT intercooled KJet engine included an oil+water cooled T3 turbo, and the '82 B21FT non-intercooled engine I bought to rebuild also included an oil+water cooled T3 turbo. Neither...
Forum: maintenance & nonperformance 07-30-2019, 12:26 AM
Replies: 4
Views: 537
Posted By bobxyz
The '93 has a plastic heater valve that can fail...

The '93 has a plastic heater valve that can fail to seal up when in the "off" position. With the heat "off", does the air get warmer as the engine warms up?

For the AC, a '93 should be factory...
Forum: maintenance & nonperformance 07-29-2019, 11:55 PM
Replies: 29
Views: 1,577
Posted By bobxyz
You can also feel around to see what's getting...

You can also feel around to see what's getting hot besides the resistor. Since you have an adjustable supply, start at 0volts and turn it up to say 50mA, which should prevent, or delay, overheating...
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