Quit running, perplexed

Discussion topics on Willys Overland M series vehicles
Post Reply
User avatar
OldDinger
Member
Posts: 37
Joined: Mon Oct 15, 2012 6:00 pm
Location: Arkansas Ozarks

Quit running, perplexed

Post by OldDinger »

1) Has anyone used one of the $100 Solex carbs on their A1?
2) Does anyone know a source for rebuilding a YF carb correctly?

Complete motor overhaul. Ran great for 700 miles and started backfiring and would not stay running.
Jeep has new fuel tank, pick-up, filter, and fuel lines. Fuel pump/vacuum was rebuilt by Classic guys back east. Distributor has new guts, putting out strong spark. Engine idles but stalls and backfires at exhaust. Sprayed starter fluid around carb, vac. pump, fittings, etc. no change. Thank-you
1952 M38A1 1969 M416
_____________________________________________________
"We’re surrounded. That simplifies our problem of getting to these people and killing them."
Lewis Burwell "Chesty" Puller — Nov. 1950
User avatar
4x4M38
Jeep Legend
Jeep Legend
Posts: 3487
Joined: Thu May 29, 2014 6:00 pm
Location: Texas Hill Country

Post by 4x4M38 »

Did the distributor get loose somehow?
User avatar
OldDinger
Member
Posts: 37
Joined: Mon Oct 15, 2012 6:00 pm
Location: Arkansas Ozarks

Post by OldDinger »

Distributor was locked down tight. moving it either direction it still runs crappy and will die, ie it doesn't smooth out and allow for acceleration.
1952 M38A1 1969 M416
_____________________________________________________
"We’re surrounded. That simplifies our problem of getting to these people and killing them."
Lewis Burwell "Chesty" Puller — Nov. 1950
User avatar
Bobber
Active Member
Active Member
Posts: 178
Joined: Sat Feb 08, 2014 6:00 pm
Location: Tri Cities, Washington

Post by Bobber »

I kinda had the same problem. the distributor base plate inside the distributor was loose, so the timing would change even if the whole distributor was tight.
Worth a shot.
Rusty, 1952 M38, Koenig hard top.
User avatar
OldDinger
Member
Posts: 37
Joined: Mon Oct 15, 2012 6:00 pm
Location: Arkansas Ozarks

Post by OldDinger »

Thanks, I'll try that.
1952 M38A1 1969 M416
_____________________________________________________
"We’re surrounded. That simplifies our problem of getting to these people and killing them."
Lewis Burwell "Chesty" Puller — Nov. 1950
User avatar
oilleaker1
Jeep Enthusiast
Jeep Enthusiast
Posts: 973
Joined: Wed May 13, 2009 6:00 pm
Location: South Dakota

Post by oilleaker1 »

Condensors will do what you describe also. John
User avatar
acengraver
Contributor
Contributor
Posts: 104
Joined: Tue Jan 13, 2009 6:00 pm
Location: Birmingham, Alabama

Post by acengraver »

Check the condenser. I had the same problem with a condenser that was practically new. It went bad after only 140 miles.
MVPA #30367
Dixie Division MVPA Member
1952 M38A1
1952 M-100 Strick
1951 M38
1952 M38
1943 GPW
1942 Chevrolet G506
User avatar
wesk
Site Administrator
Site Administrator
Posts: 16465
Joined: Sun Apr 03, 2005 6:00 pm
Location: Wisconsin
Contact:

Post by wesk »

I usually don't tell folks to "Check the condenser" . Most folks do not have condenser/capacitor test sets. The only accepted field method of "checking the condenser" without a condenser/capacitor test set is to substitute a known good one.
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. ... _album.php
User avatar
acengraver
Contributor
Contributor
Posts: 104
Joined: Tue Jan 13, 2009 6:00 pm
Location: Birmingham, Alabama

Post by acengraver »

I checked mine by putting the old one in and solving the problem. I should have said try swapping the condenser.
MVPA #30367
Dixie Division MVPA Member
1952 M38A1
1952 M-100 Strick
1951 M38
1952 M38
1943 GPW
1942 Chevrolet G506
User avatar
OldDinger
Member
Posts: 37
Joined: Mon Oct 15, 2012 6:00 pm
Location: Arkansas Ozarks

Post by OldDinger »

Thank you all. I will replace condenser and try tomorrow.
1952 M38A1 1969 M416
_____________________________________________________
"We’re surrounded. That simplifies our problem of getting to these people and killing them."
Lewis Burwell "Chesty" Puller — Nov. 1950
Post Reply