Fuel Pump Bowl Type?

Nov. 18, 1941 - MB100001 thru Mar. 6, 1942 - MB125809 NO EBAY or COMMERCIAL SALES.
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Tom Wolboldt
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Re: Fuel Pump Bowl Type?

Post by Tom Wolboldt » Sat Oct 01, 2016 7:43 am

Hi Ben,

Good for you!!!! So you should be able to put this issue to bed in no time at all. The entire MB jeep hobby will be very pleased to finally know the facts of the MB factory fuel bowl conflict.


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DavidA
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Re: Fuel Pump Bowl Type?

Post by DavidA » Sun Oct 02, 2016 10:24 am

Not gonna argue the point but I use a glass bowl simply because it is easier to see the problems with dirty fuel and/or potential starting problems. Since my Slat is not factory, it really doesn't matter what is there.

As for the reason they probably went with metal is simply because of the fragility of glass. In the field,a broken or chipped edge on the pump bowl could mean the difference between go and stop. Metal doesn't chip or crack and believe me, the glass does crack. Ask me how I know. Good thing my parts supplier had a ton of glass bowls. :lol:

Oh...and I do keep one of those metal things on the shelf just in case. :? Hmmm...maybe I should move it to the Jeep just in case I FUBAR the glass one on a drive.
David Aro - USN SEABEES '66-'70
1941 WILLYS MB-104354
1942 WILLYS MB-131350

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Chuck Lutz
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Re: Fuel Pump Bowl Type?

Post by Chuck Lutz » Mon Oct 03, 2016 11:20 am

i think this issue illustrates the problem with taking manuals at face value....when a manual issued later in the war for replacement parts comes out....it gives a "one size fits all" replacement number. While a glass bowl may have been available for an MA fuel pump after the MB went into production that does not mean the manual that furnishes that information cares if the metal bowl is FACTORY correct for the MB.

Conversely, there are parts listed in mid/late war replacement parts manuals that did not necessarily come with the early versions of the jeep.

"Master Parts Lists" need to be approached with that in mind. Cross-checking with the actual TM for the contract your jeep was produced under may be of great assistance with that.

The MA manual indicates that the fuel pump bowl is GLASS and it has a part number of 115655. The illustration on page 48 indicates ALL the parts of that pump have either a 1156xx or 1158xx part number.

However...in my GPW Maint manual March 1942 the illustration indicates all the parts retain the same 1156xx or 1158xx part numbers...EXCEPT for two items. The Rocker Arm Pin and....the Bowl both have an "A-xxxx" Willys number and the description of the bowl does no longer say it is GLASS.
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Re: Fuel Pump Bowl Type?

Post by Joe Gopan » Mon Oct 03, 2016 3:19 pm

The "1156XXX numbers are AC part numbers for the various components.
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Re: Fuel Pump Bowl Type?

Post by Chuck Lutz » Tue Oct 18, 2016 5:04 pm

So....since the MA fuel bowl is "115615" and is "GLASS"...

And the MB fuel bowl is "1537065" and is "METAL".....

I think we know which is which here, right?

GLASS = MA
METAL = MB

The REPLACEMENT PARTS books can offer you either bowl for either the MA or the MB...but....if you are interested in the FACTORY installed bowl for an MB, it ain't the GLASS one.
Chuck Lutz

GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
Bantam T3-C 1947

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Tom Wolboldt
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Re: Fuel Pump Bowl Type?

Post by Tom Wolboldt » Tue Oct 25, 2016 4:18 am

Hi Ben,
Got a lifetime and a lot of connections in the industry.
How is that lifetime of experiences and industry connections coming with making a definitive answer to the MB production line fuel pump question of if glass and metal bowls were used or only metal ? The MB / GPW hobby is waiting to benefit from your knowledge.

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Re: Fuel Pump Bowl Type?

Post by Joe Gopan » Tue Oct 25, 2016 4:32 am

You're the one writing the book, what are you finding out?
2011 MVPA PIONEER AWARD - MVPA #1064
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
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Tom Wolboldt
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Re: Fuel Pump Bowl Type?

Post by Tom Wolboldt » Tue Oct 25, 2016 4:53 am

Hi Ben,

My data is in conflict with what you have posted many times here on G503 so as a MB / GPW researcher I am following up with my question above on any leads that resolves stated conflicts of data so the WW2 jeep hobby gets the correct answer included in my book.

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Re: Fuel Pump Bowl Type?

Post by Joe Gopan » Tue Oct 25, 2016 5:34 am

When you are done, send me a copy of your book to proof read. I have sent you a lot of data over the years and never have found out your reason for requesting.
2011 MVPA PIONEER AWARD - MVPA #1064
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO

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Tom Wolboldt
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Re: Fuel Pump Bowl Type?

Post by Tom Wolboldt » Tue Oct 25, 2016 5:40 am

Hi Ben,

Perhaps you have me confused with someone else as I do not believe I have ever personally received any data from you over the 30 plus years that I have known you.

As to proof reading my book the conflicts of stated facts needs resolved first before any proof reading is requested by myself.

Edited for a misspelled word.
Last edited by Tom Wolboldt on Tue Oct 25, 2016 7:22 am, edited 1 time in total.

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Re: Fuel Pump Bowl Type?

Post by Joe Gopan » Tue Oct 25, 2016 5:47 am

Will look forward to your book.
2011 MVPA PIONEER AWARD - MVPA #1064
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO


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