Need Help - Trying to determine my 1952 M38 pedigree/service

foss0194 · Post by **foss0194** » Tue Mar 21, 2017 7:10 pm

It appears that it was restored by a group of guys, but still unable to get anymore info right now. They placed the MVPA sticker on the windshield and created a "baby book" that I inherited. Trying to find out the City and State it was done for additional clues.

4x4M38 · Post by **4x4M38** » Tue Mar 21, 2017 9:16 pm

Well by all means let's have some baby pictures!

foss0194 · Post by **foss0194** » Thu Mar 23, 2017 10:16 am

Having difficult time loading images.... following directions ,but it has been advising uploading for over 10 minutes....

Did find out the following which isn't much:

"Jack bought it from a guy in NY state who bought it at one of the PA Car shows: Hershey or Carlisle PA. The NY guy is a Hot Rod collector so the Jeep may have been for sale at the Carlisle PA Hot Rod Show or the huge yearly Hershey Car Show."

Post by **wesk** » Thu Mar 23, 2017 10:24 am

Make sure the file size of your photos is less than 300K.

foss0194 · Post by **foss0194** » Thu Mar 23, 2017 5:42 pm

Ok, got all the baby pictures loaded. There are images of several of the guys doing the job. Maybe some are recognizable?

One of the last images is a brake fluid flume I made to overcome the master cylinder location problem.

The exhaust smells very rich in fuel and I noticed the newly replaced fuel filter barely has any fuel in the clear "bell". The engine doesn't sound as though it is fully "winding out" - power deficient when gas pedal floored. We by-passed the air filter, so don't think it is an air problem. Replace the plugs maybe? Fuel pump issue? Adjust the carb if possible?

4x4M38 · Post by **4x4M38** » Thu Mar 23, 2017 6:28 pm

The glass bowl filters don't run full under normal
operation.

If it hasn't warmed up and/or been run in a while
a lot of things will appear odd or smell funny.

A common source of sooty plugs in a little used
jeep is not allowing it to come up to operating
temp, then shutting it off, or just not driving it enough.

Any gas that has set for some time will begin to smell
off.

Why did you bypass the air filter?

RonD2 · Post by **RonD2** » Thu Mar 23, 2017 8:36 pm

Nice looking truck!

foss0194 · Post by **foss0194** » Thu Mar 23, 2017 9:04 pm

Bypassed air filter to troubleshoot ....maybe air filter being very dirty had restricted air flow. Didn't seem to make much difference.

Understand glass bowl isn't supposed to be full, but it is.not even close to half.... very little in there.

The exhaust does smell.like many other carb vehicles around the shop. ...it just smells flooded or too much unburnt fuel...

Definitely going to replace plugs.

Temp and fuel gauge aren't working either. Possibly oil pressure as well. It is always reading 60 psi while running.

Post by **wesk** » Thu Mar 23, 2017 10:09 pm

Does the oil pressure read 0 when not running?

foss0194 · Post by **foss0194** » Fri Mar 24, 2017 6:01 am

The oil pressure reads 60psi while running.

4 wheel drive works!

Post by **wesk** » Fri Mar 24, 2017 11:02 am

Again I must ask for troubleshooting purposes what does the oil pressure read when the engine is NOT running???

foss0194 · Post by **foss0194** » Fri Mar 24, 2017 12:09 pm

Sorry, I mis-read your last question.

It reads 0psi when not running.

The temp gauge also reads 0.

The fuel gauge will not pass 1/4 tank no matter how full.

How can you test/fix the gauges? I saw new ones in Kaiser for our 24 volt system $280.00!!!!!!!!!! (period correct)

Post by **wesk** » Fri Mar 24, 2017 12:27 pm

Right off I'd say your oil pressure relief valve is set at max and does not vary any longer with RPM. This happens when the regulating spring is completely compressed, which it should not be.

Military Gauge troubleshooting is covered in the TB 9-2300-228-20 which you can download free in PDF format on our "Downloads" page:

http://www.willysmjeeps.com/v2/modules. ... tit&lid=46

This troubleshooting guide must be followed step by step, NO SHORTCUTS! if you want to resolve gauge issues.

Yes gauges & senders are expensive. Another good reason to utilize the TB as it was suppose to be used and use the proper testing devices.

I prefer to keep direct reading gauges on hand for quickly determining if my gauge is wrong or the engine is mis-behaving. Handy test items include these direct reading water temp and oil pressure gauges as well as a inductive pickup amp meter that will handle at least 25 amps and a good quality digital VOM.

foss0194 · Post by **foss0194** » Fri Mar 24, 2017 1:08 pm

Message received . Looks like another project!

Did you have a chance to look at baby photos?

Any chance you recognize any of the MVPA folks?

Post by **wesk** » Fri Mar 24, 2017 1:19 pm

Nice overall job. Don't recognize the two guys. A lot of new steel went into that tub!