Create an account Home  ·  ·  Forums  ·  ·  Articles  ·  ·  Downloads  ·  ·  Photo Gallery  
Login
Nickname

Password

Don't have an account yet? You can create one here.

Navigation
· Home
· Article Archive
· Article Submit
· Downloads
· FAQ
· Forums
· Members List
· Photo Gallery
· Private Messages
· Web Links
· Your Account

Search Articles



Forums

Wiper motor...which is the correct one?
Lead additive, one more question.
M31C mount with or without replica weapon
Backfire and Hesitation
Wanted: Steering column and shaft for M38-1952, or late CJ2A
2024 CT. MILITARY VEHICLE SHOW AND FLEA MARKET- JUNE 15,2024
Brake Line
How to link full size photos in posts
Clutch release bearing support cast tab for return spring
T90 case replacement required?

Willys M Jeeps Forums


willysmjeeps.com :: View topic - M38 help needed Boston Metrowest
 Forum FAQForum FAQ   SearchSearch   UsergroupsUsergroups   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

M38 help needed Boston Metrowest

 
Post new topic   Reply to topic    willysmjeeps.com Forum Index -> Technical Knowledge Base
View previous topic :: View next topic  
Author Message
ramapoarmyjeep
Member


Joined: Apr 05, 2019
Posts: 11
Location: Massachusetts

PostPosted: Mon Sep 26, 2022 1:35 pm    Post subject: M38 help needed Boston Metrowest Reply with quote

Greetings all:

need a good engine mechanic in my area (boston metrowest - natick holliston) who knows the 4-134, 24v w/ a MB carb setup well. My long time local guy has been great with many vehicles, but he and this one do not get along at all.

history: family has been running m38's for many decades, never hard to start. this one became hard to start in 2021. local guy rebuilt carb and replaced points. towed back w/in 2 weeks because would not start and massive gas leak. More carb work by local guy, still near impossible to start and always needs choke to run at all. "well, they are all like that" he says. "not for the last 45 years" i say. Dies again at his shop in April 2022 during inspection. More muttering by him about weak spark, he replaced coil.

Ran for a while earlier this year, but would never idle down and needed lots of choke (choke lever also advances throttle, of course). July started missing and bucking w/ no power up hill after a 10 mile run. I replaced dist lead with known good 24V. I replaced coil (again). I replace fuel pump and 4X new spark leads. now has spark for sure. new fuel pump has glass bowl so i know there is fuel.

Cyl #3 plug always comes out wet, even with diff plug. hmmm

Ran ok 3 weeks back then bucked backfired and quit at 2 miles. Another tow. hot day, maybe that was vapor lock

later, cooler, same thing, runs for a bit then backfires slows and quits. in most recent attempt, one backfire was so major it literally blew a giant hole in the muffler. not a hot day at all

i suspect some valve or gasket or other engine internal is off.

many thanks in advance for tips

[/i]
Back to top
View user's profile Send private message
OKCM38CDN
Member


Joined: Feb 17, 2012
Posts: 530
Location: Del City, OK

PostPosted: Mon Sep 26, 2022 4:26 pm    Post subject: Reply with quote

I had problem years ago where the jeep would not run well, even blew the muffler up. Got it to start and took starting fluid and sprayed all over the place where leaks could form. Found massive leak at the manifold to head connection. Took both manifolds to a machine shop with new bolts and gasket and had them put them together and machine the face where the manifolds connect to the block. THis must be done with the two manifolds set up as one. Cost was $100 back then have had no problems since then...

Not saying this is your problem but is something top look at, possible vaccume leak...
_________________
Hal, KB1ZQ
TSGT, USAF (Ret)
1952 M-38 CDN CAR 52-31313
1952 M-100 Strick #104
1951 Willys Wagon (For Sale)
1954 Willys M38A1 201001205
Tornado Alley
Del City, OK
Back to top
View user's profile Send private message Send e-mail Yahoo Messenger
wesk
Site Administrator
Site Administrator


Joined: Apr 04, 2005
Posts: 16225
Location: Wisconsin

PostPosted: Mon Sep 26, 2022 4:49 pm    Post subject: Reply with quote

How about running a few simple tests and record readings so folks can arm chair with adequate technical information.

1 - Compression test results.

2 - Leak down test results.

3 - Vacuum readings.

4 - Fuel pump operating pressure.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
Back to top
View user's profile Send private message Send e-mail Visit poster's website
whydahdvr
Member


Joined: Jul 18, 2008
Posts: 638
Location: Melrose, MA and Santa Fe, NM

PostPosted: Tue Sep 27, 2022 5:47 am    Post subject: Reply with quote

I can't help with Metro-West but Dave Adario here in Melrose, MA is who worked on my M38 and my GPW. He's great and really enjoys working on the jeeps. Give him a call or check him out.
You can let him know I recommended him.
Josh
_________________
North Shore, MA
Santa Fe, NM
1942 GPW
1952 M38
1964 Apollo 5000 GT

De Opresso Liber
Back to top
View user's profile Send private message Send e-mail
ramapoarmyjeep
Member


Joined: Apr 05, 2019
Posts: 11
Location: Massachusetts

PostPosted: Wed Sep 28, 2022 9:44 am    Post subject: Reply with quote

thansk all for the tips!

Will chekc out the Melrose guy - and of course report back
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    willysmjeeps.com Forum Index -> Technical Knowledge Base All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Powered by phpBB © 2001 phpBB Group
Forums ©

 



PHP-Nuke Copyright © 2005 by Francisco Burzi. This is free software, and you may redistribute it under the GPL. PHP-Nuke comes with absolutely no warranty, for details, see the license.