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What have you done to your JEEP today

Maverick1701

Well-known member
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Location
Lubbock, TX
There is a disk under stock coils, don't know what it is. Your coil terminal may not reach distributor cap without the thickness of the disk. Just a guess, perhaps worthless.
I actually went through this issue when I removed the factory coil. That resistor/disk is now internal so the coil is full height. Here are some pics I took back in 2017 when I replaced it:
coi ldifferen.jpg
coil different 1.jpg
 

JEB

Active member
129
140
43
Location
Colbert, WA
Buying more parts....
Horn switch, stop light switch, radiator cap and just for fun...A new horn cap.

And importantly, I figured out a period correct seatbelt set up for my USAF-marked M38A1. I'm marking it for when it was built (1955), so it was a challenge given the lack of aftermarket seat belts at the time.
They'll look great.
 
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Maverick1701

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Location
Lubbock, TX
My replacement distributor power plug, and condensers FINALLY arrived (I ordered three so I have extra for when they die) today. On my days off I'm going to get it installed and see if my spark situation changes. Hopefully I'll have spark at the plugs now.
 

Maverick1701

Well-known member
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63
Location
Lubbock, TX
Well it happened….my jeep FINALLY runs.

On Thursday I swapped out the condenser and replaced the distributor power cable. I needed to clearance the condenser bracket (it rubbed against the distributor shaft) and then I fabricated another little locking tab that holds the distributor plate in place. I buttoned up everything and it fired on starting fluid. After a few tries (fine-tuning my spraying & throttle coordination) I was able to keep it running on starting fluid. Oil pressure looked solid and I had fuel pumping to the carb (out of a little water bottle fuel can I rigged up). I tried it on gas and it just wouldn’t go…so time to open the carb.

On Friday a buddy came over and we tore into the carb. It was clogged shut and filled with old nasty gas, silt, and particulates. We cleaned out all the passages, valves, etc. and slapped it back together. After reinstalling on the jeep we refilled the temporary fuel tank (water bottle) and after a few failures we got it to run on gasoline. Once we got it running more or less reliably we adjusted the generator (had to shim it forward to align with the other pulleys, assembled the cooling system, topped off the oil in the air filter, and installed the belts. I have a radiator cap on the way via napa and it should be good to go.

I don’t think cylinder 1 is firing or possibly only firing intermittently. Using my IR thermometer, 2/3/4 show 360-400* while 1 only shows in the high 200s. I’m going to replace the spark plug wire and see if it changes anything. I dropped the end of that wire on the battery earlier in the week and did some surprise welding…and oh boy…it was a surprise!! I pulled the plug and it was fouled so that may have been the issue as well. I’ll know more when I have time to work on it later this week.

Running video 1:

Running video 2:

jeep carb clog 2.jpgjeep work carb clog.jpg
 

Maverick1701

Well-known member
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181
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Location
Lubbock, TX
Unfortunately, it's been way too cold to have another long day in the shop. We should be warming up again in a few days so I'm going to make a hard push next week to button up everything (or most everything). Since Saturday, I've replaced a headlight, checked (and topped off) fluid levels in both differentials, cleaned out axle vents, and I've been working on getting my vacuum system sorted (I hate vacuum systems).

I don't like messing with brass fittings but it's a necessary evil here. I have the engine-to-vacuum pump lines sorted. I'm finishing with the intake tube-distributor-wiper T-vacuum pipe side of things. I need to make one more connection and it'll be good to go.

I would like to get the Jeep inspected and plated next week. That requires some safety items be fixed. I have some wiper blades on order & I need to figure out why the horn no longer works (the horn rod/button no longer "springs" back when pressed). I'm hoping it's just a stuck horn switch but I can always wire up a temporary horn button for inspection purposes.

On the short-term to-to list is: check fluid in transmission and x-fer case, flush brake system, wrap exhaust downpipe (it runs REALLY close to my front brake line and I'm worried about boiling the brake fluid), and clean out my gas tank before hooking it into the system.

Long-term to-do list includes: buy new exhaust system, install winch plate, install PTO, install PTO winch, buy a rear seat, buy a top.
 

Maverick1701

Well-known member
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181
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Location
Lubbock, TX
My radiator cap arrived today...only three days late (thanks fedex).

On the way to work I stopped at the parts store and picked-up the last few brass pieces I need to complete my vacuum system. So that will be done and off the to-do list.

I also stopped by the courthouse and completed the registration paperwork with the county tax assessor/collector. I decided to tag it as an antique vehicle (for now) so I could drive and enjoy it ASAP. Also a perk of the antique registration (and classic registration) is the ability to run year-of-manufacture license plates. I have been saving these 1952 plates for years now for this exact occasion. It's nice to finally have them official with the state of TX.
 

Attachments

DeetFreek

Well-known member
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Location
New Sharon IA
I decided to tag it as an antique vehicle (for now) so I could drive and enjoy it ASAP. Also a perk of the antique registration (and classic registration) is the ability to run year-of-manufacture license plates. I have been saving these 1952 plates for years now for this exact occasion. It's nice to finally have them official with the state of TX.
Iowa isn't too much different, we don't have to register as a classic to run year of manufacture though. I just slap the plates on, keep the current plates/registration in the vehicle and I'm golden. I'm still on the lookout for a pair of '52 plates, the set for the '53 I found pretty quickly and weren't in terrible shape, so I left them as is. Only running the rear plate, I don't feel like fabbing up a bracket for the front.
 

Maverick1701

Well-known member
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Location
Lubbock, TX
So today was an exciting day. After a long long process, it's finally back on the road.

I checked off the last few items on my to-to list....check the fluid in my transmission and x-fer case, buttoned up my vacuum system, wrapped my exhaust, cleaned the gas tank, hooked up the fuel system, and then drive the jeep for the first time in about eight years. I have a few issues I need clean up but it ran and drove mostly well-ish.


I think I have a fuel issue and potentially a timing issue. After reading below and hearing the videos, what do you all think?


IMG_20220303_133501.jpgIMG_20220303_134246.jpg


Video(s):

Driving around the field next to my neighborhood:



this video shows the idle at the start of my drive. It cleared up a little but I'm thinking I have a few issues to fix to really have it running well



this video shows the exhaust at idle. I still have some popping and minimal backfiring which also leads me to believe I have some issues to work out:



Cylinder 1 temperature still seems low (I swapped out the spark plug cable before running it today)...but maybe it's just showing lower because it's closer to the fan and has good airflow? what are your thoughts on this?


SP1 temp:

IMG_20220303_132007.jpg

SP2/3 temp:

IMG_20220303_132009.jpg

SP4 temp:

IMG_20220303_132012.jpg


I also think I have a fueling issue. The fuel filter I installed between the tank & pump just shows a trickle of fuel....the jeep still ran but I would expect it to flow more than that. How does it look to you all?

IMG_20220303_132449.jpg


At the end of the first drive the jeep died on me but I was able to restart it with starting fluid (no idea why it decided to die).
 
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GopherHill

Well-known member
474
1,250
93
Location
Thomaston, TX
Those fuel filters never fill up completely . A sure thing is to check pump output quantity and pressure. The procedure is probably in the -10 manual.
An old Motors manual will do, use CJ5 specs.
Be careful and don't set fire to the jeep.
 

Maverick1701

Well-known member
1,433
181
63
Location
Lubbock, TX
Those fuel filters never fill up completely . A sure thing is to check pump output quantity and pressure. The procedure is probably in the -10 manual.
An old Motors manual will do, use CJ5 specs.
Be careful and don't set fire to the jeep.
Thanks for the tips. I'll give the pump a double check.


Update: After my original post, I went back out to do some more troubleshooting.

I found and fixed a few issues...now the jeep is running GREAT!!!

I apparently had a major leak around the carb mounting gasket. I cranked down on the mounting nuts and that cleared up.
Next I double checked my float level. I had it set at 1/2in and the correct setting per the TMs is 9/64s...so I was way way off. This fixed a ton of my other issues.

Now the jeep purrs perfectly. Once the wife got home, we all went out for a little drive in the alleys behind our house:
IMG_20220303_153511.jpg
IMG_20220303_175525.jpg
IMG_20220303_175531.jpg
 

Mullaney

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Thanks for the tips. I'll give the pump a double check.


Update: After my original post, I went back out to do some more troubleshooting.

I found and fixed a few issues...now the jeep is running GREAT!!!

I apparently had a major leak around the carb mounting gasket. I cranked down on the mounting nuts and that cleared up.
Next I double checked my float level. I had it set at 1/2in and the correct setting per the TMs is 9/64s...so I was way way off. This fixed a ton of my other issues.

Now the jeep purrs perfectly. Once the wife got home, we all went out for a little drive in the alleys behind our house:
View attachment 860564
View attachment 860565
View attachment 860566
.
And there is a smile on every face in those pictures!
Looks like some really great family time.
Congrats on finding and fixing your troubles!
 

JEB

Active member
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Location
Colbert, WA
Maverick1701

it does my heart good to see a nice young family spending time together, especially in something so all-American, so universal ....
I do miss Texas!

I hope you and your family enjoy the Jeep for many miles and many years.
 

Maverick1701

Well-known member
1,433
181
63
Location
Lubbock, TX
I need to pick the brains of the group here.
I wanted to verify my understanding based on what I gathered from the TMs regarding re-clocking the oil pump for a timing issue.
Currently, my distributor is bottomed out against the generator and I need to rotate it further "down" for timing purposes. My understanding is I need to move the oil pump one tooth clockwise (NOT counterclockwise) which will allow for more "downward" adjustment of the distributor. Is this correct?

Nothing new today in terms of working on the jeep. I'm waiting on an order from KW to arrive...should be here tomorrow.
I ordered a new thermostat, t-stat gasket, engine temp sensor, and replacement side-view mirror. I'm hoping to get those installed later this week but we will see.... we have house guests for a few days so that may interrupt my jeep fun.
 
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DeetFreek

Well-known member
219
351
63
Location
New Sharon IA
I need to pick the brains of the group here.
I wanted to verify my understanding based on what I gathered from the TMs regarding re-clocking the oil pump for a timing issue.
Currently, my distributor is bottomed out against the generator and I need to rotate it further "down" for timing purposes. My understanding is I need to move the oil pump one tooth clockwise which will allow for more "downward" adjustment of the distributor. Is this correct?
Sounds correct to me, in order to get more clockwise rotation, it needs clocked in reverse of that. Each tooth is 30° worth of timing, so unless you're waaaay out, one tooth should be sufficient.
 

JEB

Active member
129
140
43
Location
Colbert, WA
While the mechanics are being done, I thought I'd get proactive to figure out the best Strata Blue paint.
So far I have samples from Gillespie and PPG.
LVP comes next week.
There is a noticeable difference in the two.

Also, found a supplier for the military markings decal set.

I want to have it ready for car show season.
 

Maverick1701

Well-known member
1,433
181
63
Location
Lubbock, TX
While the mechanics are being done, I thought I'd get proactive to figure out the best Strata Blue paint.
So far I have samples from Gillespie and PPG.
LVP comes next week.
There is a noticeable difference in the two.

Also, found a supplier for the military markings decal set.

I want to have it ready for car show season.
that strata blue is going to look sharp (I love strata blue MVs).
there is a famous strata blue M38A1 that has been on hte cover of the KW catalog a time or two.... from what I read on the guys build thread he had a special mix of strata blue made which really pops.
 

DeetFreek

Well-known member
219
351
63
Location
New Sharon IA
that strata blue is going to look sharp (I love strata blue MVs).
there is a famous strata blue M38A1 that has been on hte cover of the KW catalog a time or two.... from what I read on the guys build thread he had a special mix of strata blue made which really pops.
It's Timothy Slawson's A1, this pretty example! FB_IMG_1647729248588.jpgScreenshot_20220319-173933_Facebook.jpg
 
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