Wiper Vacume line for M-38

usma41 · Post by **usma41** » Thu Nov 02, 2006 5:17 pm

Can anyone tell me where the return vacum line for the windsheild wipers ends up at in the engin compartment of a M-38 ?

OKCM38CDN · Post by **OKCM38CDN** » Thu Nov 02, 2006 5:56 pm

The vaccume side of thewipers is at the "T" by the manifold...

The air supply side of the wipers is at the air filter, off a "T" on the upper rear of the canister...

Hope this helps...

usma41 · Post by **usma41** » Thu Nov 02, 2006 6:48 pm

Incorrect. any lines going into the air cleaner are for the purpose of venting for fording i.e. Transmission vent and Break master cylender vent. Not to be confused with vacume lines.

OKCM38CDN · Post by **OKCM38CDN** » Thu Nov 02, 2006 7:34 pm

The air feed line that goes to the passenger side of the wipers, goes down thru the fender, goes to the air filter to ensure that the air powering the wipers is clean... Check your TMs...

TM 9-8012; Page 125; Figure 33; Item A and E for one...

TM 9-8012; Page 125; Para 116c

"c. Operations at Right Side of Vehicle.
Note. The key letters noted in parenthesis are in figure 33, except where
otherwise indicated.
(1) Pull windshield wiper hose (A) off windshield wiper vent
line (B) and unscrew vent line nut from tee (E) .
(2) Unscrew nut on master cylinder vent line (F) and remove
line from the connector in tee (E) ."

The Wiper feed and the master cylinder fording line feed off the same point on the air filter...

Please check your TMs... I will admit I am not an expert, but have spent the last three years going thru the TMs to do my restoration...

Hope this helps...

Post by **Ryan_Miller** » Thu Nov 02, 2006 7:43 pm

Hal is right,

The windshield wipers VENT through the passenger side. The vacuum for the wipers comes from the driver side.

Post by **wesk** » Thu Nov 02, 2006 9:43 pm

You must remember the M38 was designed to Ford to a depth equal to the height of it's windshield. Therefore the vent side of the wiper plumbing will have suction coming from the Vacuum pump and it will suck in water unless you seal it's air source from the water.

usma41 · Post by **usma41** » Fri Nov 03, 2006 6:28 am

I don't recall seeing a tee on the air filter. There are only two ports on it and one is for a rubber hose. I do recall seeing the rubber hose for the wiper return, but it changes to a hard line behind the air filter. ( in the TM)

Post by **wesk** » Fri Nov 03, 2006 8:28 am

One of the very important differences between our site and the G503 site is we have a ton of files and photos for your free use in our Articles, Downloads and Photo sections which have their links displayed at the top of each page you view. These assets are Post WWII Willys M jeeps specific.

The answer to your questions can be found right there in the downloads section under http://willysmjeeps.com/downloads/M38.U ... .12.04.pdf

m37m38 · Post by **m37m38** » Fri Nov 03, 2006 10:15 am

Wes,

I tried to print this document so I can work on this when I finsh my electrical problem and can not do so. It show up as a protected document without printing rights in Adobe. Is this done for a reason??

Dave

usma41 · Post by **usma41** » Fri Nov 03, 2006 7:28 pm

OK, it looks like someone put a nut on there with a fitting to take a rubber hose just to get around doing it right. As soon as I find the proper "T" fitting I'll change it out. Thanks

Post by **wesk** » Fri Nov 03, 2006 10:01 pm

Dave,
You are correct. You'll have to ask Ryan or Bob Westerman if they'll allow you password access to print it.

USMA41 glad our data helped you sort it out. It would be nice to put a name with our communication efforts.

BobW · Post by **BobW** » Sat Nov 04, 2006 12:01 am

m37m38 wrote:Wes,

I tried to print this document so I can work on this when I finsh my electrical problem and can not do so. It show up as a protected document without printing rights in Adobe. Is this done for a reason??

Dave

Hi Dave,

I also have the article posted on my personal web site here...
http://www.cj3a.info/sibling/m38vent/vent.htm
You can print it from there. Remember to click on the link to go to page 2 where the parts database and photos can be accessed.

usma41 · Post by **usma41** » Mon Nov 06, 2006 1:59 am

USMA41 glad our data helped you sort it out. It would be nice to put a name with our communication efforts.[/quote] FRANK, take a look in the Photo Gallery click number 4

Post by **wesk** » Mon Nov 06, 2006 9:06 am

Hello Frank,
Very good looking M38. Nice to see a glossy finish once in awhile. Nice 13 as well. I just finished removing rotors for a customer's 13 coverted G and trailered it up for his winter run to Florida. Would you know where I can find replacement fasteners for the rotor transport box lid? Is the 41 the class number or year at the Point?

usma41 · Post by **usma41** » Wed Nov 08, 2006 7:39 pm

Thats the year I was born there at the Post Hospital. The Bell 47 that is in my picture is no longer in Orlando, after the storms they moved everything to Ga. I was wondering if you or anyone else knows why on a left hand turn will the engine increse in RPM and on a right turn decrese to the point of almost stopping? (Suspect fuel float). As soon as I find out how to post more pic's I will. Some things about my M38, The gloss finnish was originaly semi-gloss which was used by the Military Police. The crome siren is correct and West Point was the only one that used a commercial siren. (I know because they used to chase me and my brothers out of the motor pool at night. (It was also comfirmed by the curator of the West Point Museme) God I wish they had spell check on here LOL Thanks Frank

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willysmjeeps.com

Wiper Vacume line for M-38

Wiper Vacume line for M-38

Re: Wiper Vacume line for M-38

Wiper's

Bell 47 rotors