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

Gallery Request
R-110 , PRC-77, PRC-25 Radios
ANother M38 steering assembly identification question
F134 engine fuel pump question
M38-YS637S Carb question
RT-70 & other radios... Stencilling
Willys Service Bulletins 1945-1951
P.C.V Baffle
Rubber washers on F134 valve cover by
Adding pictures to post

Willys M Jeeps Forums


willysmjeeps.com :: View topic - Expected co reading from L134 engine on M38
 Forum FAQForum FAQ   SearchSearch   UsergroupsUsergroups   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Expected co reading from L134 engine on M38

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


Joined: Sep 08, 2019
Posts: 218
Location: Yorkshire U.K.

PostPosted: Fri Jun 05, 2020 5:45 am    Post subject: Expected co reading from L134 engine on M38 Reply with quote

After working on the Timing Carb etc ,thought I might get a modern CO reading at a Test centre.

In the U.K. we do not have to test but I would be interested to know what a well set up Jeep would produce so I have a bench mark.

I have had a look through, but back in the day it was not a very important subject it would seem.

So looking for average CO and Hydrocarbon readings if possible.

Thanks
_________________
1952 M38
Back to top
View user's profile Send private message
horse
Member


Joined: Sep 08, 2019
Posts: 218
Location: Yorkshire U.K.

PostPosted: Sat Jun 20, 2020 11:46 am    Post subject: Reply with quote

Nobody had an M38 on a meter then!

Anybody?
_________________
1952 M38
Back to top
View user's profile Send private message
horse
Member


Joined: Sep 08, 2019
Posts: 218
Location: Yorkshire U.K.

PostPosted: Wed Jun 19, 2024 12:22 pm    Post subject: Reply with quote

It has been a while to get a reply on this.
So after setting up the engine after a leaking manifold gasket I wanted to get a CO reading to make sure she was not lean at the top end of the revs.
So with the Weber carburettor fitted I got 2.70% Vol which is an MOT pass in the U.K.and a clean running engine.
I know nobody is interested in Jeep emissions but nice to know.
Horse
_________________
1952 M38
Back to top
View user's profile Send private message
wesk
Site Administrator
Site Administrator


Joined: Apr 04, 2005
Posts: 16299
Location: Wisconsin

PostPosted: Wed Jun 19, 2024 12:45 pm    Post subject: Reply with quote

In the US most states require a passing score. Some exempt antique classics but you will have a hard time finding a jeep owner here in the US that wants the stae and federal government to know what his jeep's emmisions are!
_________________
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
horse
Member


Joined: Sep 08, 2019
Posts: 218
Location: Yorkshire U.K.

PostPosted: Thu Jun 20, 2024 3:38 am    Post subject: Reply with quote

Interesting, all vehicles over 40 years old are exempt from a test on this side of the pond.
They still have to be road worthy if you get stopped for speeding:Laughing
Horse
_________________
1952 M38
Back to top
View user's profile Send private message
4x4M38
Member


Joined: May 30, 2014
Posts: 3457
Location: Texas Hill Country

PostPosted: Thu Jun 20, 2024 7:28 am    Post subject: Reply with quote

In Texas, it’s by high density areas. Austin, Dallas-Ft.Worth, Houston, etc.

Here in the country our county does not test.
_________________
Brian
1950 M38
MC11481
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album372&op=modload&name=gallery&file=index&include=view_album.php
Back to top
View user's profile Send private message Send e-mail
whydahdvr
Member


Joined: Jul 18, 2008
Posts: 642
Location: Melrose, MA and Santa Fe, NM

PostPosted: Thu Jun 20, 2024 9:13 am    Post subject: Reply with quote

In Massachusetts they never bother with any of my antique jeeps. Exempted. The direction is to go with what was on it originally, so limited emissions controls and other "modern benefits"...
On the other hand, most people with vehicles this old don't drive them all day, every day, in large numbers so the impacts are limited.
_________________
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
4x4M38
Member


Joined: May 30, 2014
Posts: 3457
Location: Texas Hill Country

PostPosted: Thu Jun 20, 2024 2:25 pm    Post subject: Reply with quote

I mean, if they want to get anal, I guess they’d start with the draft tube on the civvy jobs?

Truly an anachronism. One of the first engines with a positive crankcase ventilation system.
_________________
Brian
1950 M38
MC11481
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album372&op=modload&name=gallery&file=index&include=view_album.php
Back to top
View user's profile Send private message Send e-mail
RonD2
Member


Joined: Oct 02, 2014
Posts: 1962
Location: South Carolina, Dorchester County

PostPosted: Thu Jun 20, 2024 4:04 pm    Post subject: Reply with quote

No inspection of any kind here in South Carolina, new, old, or otherwise.
Plenty of laws on the books that any LEO can ticket you for (but they don't carry emission probes around with them) --- like busted tail lights and such.
It's the honor system at work.

According to google, 29 of 50 states have some kind of emission test, and most of them seem to exempt old vehicles.

I think when the government decides to get anal about something, they'll usually start with a cavity search.
According to the news, their objective is to get rid of all infernal combustion engines altogether.
_________________
Ron D.
1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51

“The only good sports car that America ever made was the Jeep."
--- Enzo Ferrari

Back to top
View user's profile Send private message Send e-mail
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.