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tjc

Sold.

Thanks for all the help from you all over the years.

tjc

Selling RWD swap: 1985 Ram50 in Atlanta

Running but eating coolant - ? head gasket. It is at my father's house down south and I have not been able to do any diagnostics. He drives it occasionally in summer but has not done so more than 10 miles at a time this summer. He has to keep adding coolant ...

tjc

any interest in creating a wikipedia entry for "4g63 swap" ?

might save us the recurrent trany and wiring questions we see and also just get the info all in once place

thoughts?

tjc

re: just curious

looks like 4 by my count

tjc

84 D50 5speed with a stock 4g63. Running daily for just over 2 years. No major problems yet. I like the older D50 look.
I get scared when I shift hard through the gears (a little clunky) so I mostly drive around and do long hard pulls in 2nd or 3rd gear for fun every now and then. Recently gave the ...

tjc

That's sweet. I love the look of the pre-'85 D50. It will be great to see another one swapped. My swap was cheap and dirty and still runnin' fun 18 months later.

http://i271.photobucket.com/albums/jj154/tcrimmins/IMG_03421.jpg

http://i271.photobucket.com/albums/jj154/tcrimmins ...

tjc

tjc

My '84 truck has been running daily for 14 months now-only problems were leaked caps in the ECU, a broken clutch cable, clogged fuel filter, short in the wirinig that drains the battery (marine battery disconect "fixed" that) and continued idle surge in cold weather. I know it's a lot different than ...

tjc

Ok, I've been staring at my diagrams (2 years old) and think i may have figured out what I was trying to do for the alternator circuit but can't be positive without looking at the truck.
There are three terminals on the alternator B, L and S (sometimes called R).
1) wire B goes directly to pos ...

tjc

Here is what I did for the fuel pump. I needed to look at the main relay pin out too (DJ has a pic on his white car page) to understand. I looked at the relay diagram and the ECU diagram in my Chilton to understand how it should work.

1) FUEL PUMP: Using the stock D50 starting circuit. Plan to ...

tjc

just me and you I guess

tjc

looks nice, my firewall wishes I was that savy

tjc

very nice!!
who else has a "1G" swapped D50?

tjc

Yea, it's was hard to measure in place. The tape is bent and I wasn't sure how long the block from end to end should be. It didn't look right but I convinced myself it was OK as I was working under the assumption it was wide. I had not followed those recent threads about it and incorrectly thought ...

tjc

Just got back from the yard. I pulled a block from an '86 D50 auto and the block was........12.25 inches.

Crap, I guess all the D50 autos aren't wide.

tjc

anyone else ready to see an update from Mike with pics?

tjc

I was thinking the same thing when I built them. I am probably going to re-do them a slightly different way. I am also going to add a cable strap to the engine to prevent the engine from moving too much and ripping the mounts. Small and big block Chevies used these cable straps in the 1960's, and ...

tjc

Today I passed inspection and emission in DC. This is an incredible feat. It took 6 hours of waiting in line. At first they would not inspect me b/c tail pipe was too short and I was "smoking". I had been idling in line for 2 hours and it smoked when I gunned but then no smoke when that cleared out ...

tjc

TruckA nice job!! I know the feeling-my D50 runs better and better each week. Took a lot of work to get here but things are finally comming together. i now have 500 miles on the swap and am going to try and pass emisions on tuesday.
This thing is quick.

It's raining today and I can't get into boost ...

tjc

tjc did you use an AWD flywheel and pressure plate, so did i and i had to make an 8mm spacer for the throwout bearing to fix the ajt issue.

I can't remember I'll have to check my notes-I think it was just a FWD flywheel machined for a D50 pilot bearing and FWD pressure plate but with D50 clutch ...

tjc

It works. Black/white wire. Slpit the wire, red/green from adaptor goes to coil, red wire goes to ECU.

tjc

During that run it reads 0.87V the entire time, then drops to 0.01 when I got off the gas.
Same reading for a run right after that.
Is that accurate enough to say not too lean?

tjc

Unfortunatly I don't have a wideband O2 sensor.

tjc

I have put a dent in the idle surge issuse. Tested the ISC for resistance and movement and it checked out.
Replaced injector seals and the throttle body shaft seals. I had a big boost leak there.
Also replaced the BISS, its gasket and rubber plug above it.
I still have surge 1 out of 10 times I ...

tjc

I found the tach wire from the ECU. It puts out a steady and very small voltage that increases with RPM and did not work with the sunpro tach.

Looks like I'll have to get the autometer tach adapter-I'll post when I figure out what works.

tjc

91 ecu
i'll try and test the knock sensor

i am worried b/c i do not want to turn up the boost if i am maxing the injectors at 9 pounds-i was hoping to go to 14 psi on the "stock" fuel system

tjc

TIMA TPS RPM KNK INJ Duty %
38.00 13.33 2562.50 0.00 0.00
38.00 29.80 2687.50 0.00 22.00
27.00 100.00 2781.25 0.00 25.00
25.00 100.00 2937.50 0.00 31.00
23.00 100.00 3062.50 0.00 41.00
19.00 100.00 3218.75 0.00 50.00
17.00 100.00 3375.00 0.00 52.00
18.00 100.00 3531.25 0.00 54.00
18.00 100.00 3687 ...

tjc

It is indeed a black/white wire. I tried hooking up my truck tack to the ECU pin 109 wire for the tach, how DJ and poorboyj did his, but it didn't work at all for me or poorboyj (the truck tachs must be different than the starion tachs). What worked for me was using the black/white tach test ...

tjc

Yea, your right. I am color blind and I got my wife to look at the wires, I had mixed up a couple when I soldered the plug on. She laughed at me.

Everything reads fine now and the EGRT is still not connected as this is a federal setup.

Thanks

tjc

I am using MMCd to log on my D50 swap. Everything seems in the normal range but a few.

1) Baro (nml 0.7-1.1 bar) always reads 0.00 bar or 0.07 psi

2) Air temp (nml 0-200 degrees) always reads -17 celcius or 1.3 F

3) EGRT (I do not know what this is) always reads -16.8 F

I guess it is either bad ...

tjc

I also wired the diagnostic port to the ECU as above. I log and read codes with MMCd and a palm IIIx, but before that I just used an analog voltometer (black to pin 10 or 12 and red to pin 1) and count the long and short sweeps to get codes.
I did not wire a check engine light.

Tim

I also looked ...

tjc

I decided to put in a new 02 sensor as part of my fix for idle surge (turns out I did not need to any way)
When I took out my old one, the bung was stripped. i think I warped it from too much heat when welding it in. The sensor went in with lots of resistance originally.

http://img65.imageshack.us ...

tjc

Crap. That makes sense. Turns out the check valve in in the vacuum hose. I used straight host.

Looks like I f'd up the booster. Hopefully another one, plus a check valve, will solve the problem.

To the yard.

tjc

Brake issue II.

The brakes actually work fine, stiff but fine. However, after about 15-20 min of driving around the brakes are "always on". Car stops on its own from roll. After sitting a while all is fine, but then happens again.

Stays the same way when I disconned the booster vacuum line.
Need ...

tjc

Brake update.

Had a major boost leak from the brake booster with with 1g DSM non-turbo booster and MM master cylinder combo. Looks like the proximal end is shaped differently and may be involved with sealing.

DSM on the L, MM on the R

. http://img106.imageshack.us/img106/4417/img11869ly.jpg ...

tjc

I have modded and unmodded intakes.
modded are $175 unmodded are $75

would you take $75 off if I send you an unmodded intake?

tjc

I can't imagine how much. I try not to track it, God forbid Ms tjc would find out how much I spend on this "hobby". Even with my budget approach to everything.

tjc

boost leak check. you most likely have a vacuum leak somewhere causing that surge.

Right on, huge boost leak in fact, multiple places. I'll let you know what happens when I get em fixed.

FYI, don't unscrew the BISS too far when the intake is pressurized to 20 psi-i almost shot my eye out.

tjc

congrats! i bought my ECU from a yard and got lucky too, turned out to be EPROM and I didn't even know what that was back then. Also, the turbo turned out to be a small 16g with 7cm housing.

tjc

anyone else have a quick project update?

tjc

After a year of work, I drove the D50 with swapped in 4G63 for the first time tonight. Funny, first run was smooth but I was not impressed with the power. A million thoughts went through my mind (ie trashed tubo I rebuilt myself or some other tuning nightmare). Went home and started working on other ...

tjc

sweet dreams

tjc

That is a great diagram, the prob is I know where the signal goes into the ECU, even have the wire labeled but I can't tell where it comes from. Did it plug into the DSM chasis harnes or go to a sensor near the motor? (pinout chart says "reed valve") Still no real reason to know unless I get DSM ...

tjc

Ok, just for kicks then, does anyone know where the VSS signal comes from in a '91 DSM?

tjc

THE ENGINE RAN TODAY!!

Below I made some edits to reflect what actually works.
'84 D50, '91 DSM ECU and turbo harness.

1) STARTER CIRCUIT: Using the stock D50 starting circuit. Plan to connect the wire called "to starter relay" from the DSM main relay to the starter solenoid so it is hot when ...

tjc

yea, not a bad idea
when this thing fails maybe I'll invest in some gas

tjc

Check out the thread "Ugly" under General for pics of my attempt.

tjc

flux, I live in the city, have no garage and have to all my work outside-I think I am getting berrer though

tjc

tjc

Yea, that works better but it woln't let me register.

Project Zero G Forums

Search found 89 matches

Selling RWD swap: 1985 Ram50 in Atlanta

unified resource - other then DJ's site

Wideblock?

Need a fix

Inspection

First logs. Help.

MAF logger question

even uglier

Project update