EARLY / LATE HEAD GASKET

1941 - 1945, MB, GPW Technical questions and discussions, regarding anything related to the WWII jeep.
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r w devon
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EARLY / LATE HEAD GASKET

Post by r w devon » Sat Dec 02, 2017 12:36 pm

Hello all

I'm fitting a wartime head and have a 'later' gasket available ( smaller section between #2 and #3 )
From a trawl through earlier post , I believe the later type was for both pre and post 1945 engines whilst the early type was obviously no good for later machines.
Some expressed the opinion that they would prefer to use ONLY an early gasket with an early head.
I couldn't find any info from those having used the universal gasket on wartime heads.

What are your experiences of using a late gasket on an early head ?

Are there any downsides ? ( poor combustion etc)

Should I hang out for an early gasket if available ?

Thanks all
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Re: EARLY / LATE HEAD GASKET

Post by Joe Gopan » Sun Dec 03, 2017 9:18 am

7267B FEL-PRO is a good match for early heads.
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r w devon
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Re: EARLY / LATE HEAD GASKET

Post by r w devon » Mon Dec 04, 2017 11:06 am

Thanks BJ
Hoping to pop it on tomorrow .
Both faces are newly machined, new studs, nice clean threads, thread sealant ready and will fit the fibre with metal insert gasket dry.
What could possibly go wrong !

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Re: EARLY / LATE HEAD GASKET

Post by r w devon » Mon Dec 04, 2017 11:12 am

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Re: EARLY / LATE HEAD GASKET

Post by Joe Gopan » Mon Dec 04, 2017 3:16 pm

Above gasket appears to be similar to Fel-Pro-7285B' the Fel-Pro 7267B has a wider section with more area between #2 and #3 than the 7285B.
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
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Re: EARLY / LATE HEAD GASKET

Post by artificer » Mon Dec 04, 2017 3:55 pm

Cylinder head needs to be torqued/tensioned/tightened in the correct sequence TM 10 1513 0100 21 Fig 9 or download off www.jeepdraw.com
John GIBBINS Member Institute of Automotive Mechanical Engineers [Ret], ASE Master Medium/Heavy Truck & Auto Technician USA -2002 Licensed Motor Mech NSW MVIC 49593 Current 2015
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Understand how system parts interact with one another. GOOD parts can then be established & the NOT GOOD problem/s part/s isolated for repair or replacement.

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Re: EARLY / LATE HEAD GASKET

Post by r w devon » Thu Dec 07, 2017 9:13 am

I know we've all seen this before ...
But thanks to all ,
And here's some feedback
Image
Image
Image
Image
Image

Cheers all
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Re: EARLY / LATE HEAD GASKET

Post by Joe Gopan » Thu Dec 07, 2017 9:54 am

The late gaskets work OK, not all current manufacturers offer a choice. Earlier style does have more gasket material in the center.
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
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Re: EARLY / LATE HEAD GASKET

Post by jeepfinger » Thu Dec 07, 2017 11:04 am

Hi BJ,

Nice Ford gasket, did it come out of one of the Valve service gasket kits? I remember using one, with some gasket sealer :roll: Needless to say, didn't take long to blow :o

Dave
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GPW 41158 June 19 1942
Bantam T3 9555 1/11/1943 USA 0258448
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Re: EARLY / LATE HEAD GASKET

Post by Joe Gopan » Thu Dec 07, 2017 2:11 pm

I still have some of the above WWII era head gaskets that were supplied in MB/GPW A-1537/FM-GPW 18387 Valve Grind Kits. They were manufactured by both Detroit Gasket and Victor. Have been installing them in Jeeps with early heads since the 50's. They are reliable as long as the head is not distorted and the permanent anti freeze is flushed every 3-5 years. Prestone goes acidic and causes corrosion which affects the gasket.
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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1943Willysgpw
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Re: EARLY / LATE HEAD GASKET

Post by 1943Willysgpw » Thu Dec 07, 2017 5:21 pm

What are your thoughts of an all copper head gasket?
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Re: EARLY / LATE HEAD GASKET

Post by jeepfinger » Fri Dec 08, 2017 10:14 am

bantamj wrote:
Thu Dec 07, 2017 10:05 pm
This one came from an MA engine that was rebuild by Ken Hacke in the USA
What a Ford part on a Willys :shock: :o . That's interchangeabilty for you.
bantamj wrote:
Thu Dec 07, 2017 10:05 pm
All copper gaskets" do a great job.
I guess that it's finding one, not that I've looked. I do know that they were kicking around a while ago.

That's Luc, not too bad a day.

Dave
Dave Boocock
GPW 41158 June 19 1942
Bantam T3 9555 1/11/1943 USA 0258448
BSA WDM20 Sept 1940 C4343114


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