Author Topic: Head Gasket for a White HT  (Read 1343 times)

steve1973

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Re: Head Gasket for a White HT
« Reply #15 on: August 06, 2020, 10:37:36 AM »
Here is the official document from the war department issued September of 1944.



Steve A.

Ma Deuce

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Re: Head Gasket for a White HT
« Reply #16 on: August 07, 2020, 04:29:15 AM »
FYI head bolt torque sequence
Mike
INMVPA
1948 Willy’s CJ 2A
1953 Willy’s CJ 3A
1947 Bantom T3-C trailer
1943 White M3A1

mkoloc

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Re: Head Gasket for a White HT
« Reply #17 on: August 07, 2020, 02:46:20 PM »
Thank you all for the excellent info .. looking back at my journal I torqued my headbolts to 100 lbs. on the final pass, based on input at that time.  Gary at Halftrack.com insisted that they should be torqued at 110 lbs. looking thru old posts on the G and as one of you stated there seem a bit of controversy regards torque values .. I'll go with the correction to the TM at 70-75 Foot lbs.  ..if there is an issue with that I can always add more foot pounds to the equation on the second pass after she warms up!

When I recovered the queen and pulled the head .. the headbolts were on so tight it took me forever to get them off, and two bolts on number one cylinder were stripped.  The French might have had the wrong torque specs from an older manual.  Would explain things.

New gasket set arrives tomorrow .. everything is cleaned up and ready to reinstall.  Cant wait to hear her run on all cylinders.  Will post a video on my YouTube Channel of her 1st startup and run with the valve fixed .. maybe I'll even throw Trumps banned video on the end of mine for sh!ts and giggles!  :o
« Last Edit: August 07, 2020, 02:51:09 PM by mkoloc »
Mark A.R. Koloc Sr.
LTC USA (RET)
1631 Bitter Creek Lane
Batavia, OH  45103
Cell:  715-821-9426

Tapper02

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Re: Head Gasket for a White HT
« Reply #18 on: August 07, 2020, 03:24:23 PM »
FYI head bolt torque sequence

Thanks for that Mark...never knew there was a sequence.

-Tom
1944 Autocar M15A1 (M16A1) Halftrack
  (Being restored to an M3A1 configuration)
  Serial Number M-15 A 1, 1356
  Model M-16 A 1, Ord Serial Number 1106
1944 Schelm Bros. M10 Ammunition Trailer
  Serial Number 16959
MVPA # 30507

mkoloc

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Re: Head Gasket for a White HT
« Reply #19 on: August 07, 2020, 04:44:07 PM »
Tom, great to hear from you ..old heads have a bit of a arch to them so when installing the headbolts you start at the center and work your way out evenly on both ends ... repeat until you reach your torque value ... run the vehicle until the engine is warmed up and repeat your tightening sequence .. best way to take the arch out of the head without machining it .. this from the guy who knows how to torgue the head down, but skips the basic compression test LOL!!

Hope things are going well out on the left coast ????. Just picked up my 4 50 Cal M2s for the track!!! They are set up to fire propane .. exciting addition to the nonprofit project.

Stay safe!!
Mark
Mark A.R. Koloc Sr.
LTC USA (RET)
1631 Bitter Creek Lane
Batavia, OH  45103
Cell:  715-821-9426

mkoloc

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Re: Head Gasket for a White HT
« Reply #20 on: August 12, 2020, 07:24:20 PM »
Well, she is back together with one exception, the breather line brass fitting from the head to aircleaner snapped off during disassembly.. will need to work the remnant out and replace with a new one (see pic).

Started her up this evening and could not believe how smooth she runs!!!  Idle is set at 700 rpm and she ticks over like a sewing machine.  When I gave her a bit of throttle it blew me away how much stronger she runs... can't wait to take her out for a test run which will have to wait until Saturday as they are resurfacing the streets right now.  Will shoot a video and post it on my YouTube Channel.

Pics:










Mark A.R. Koloc Sr.
LTC USA (RET)
1631 Bitter Creek Lane
Batavia, OH  45103
Cell:  715-821-9426

8683jb

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Re: Head Gasket for a White HT
« Reply #21 on: August 12, 2020, 10:42:12 PM »
Nice job Mark. It looks great!
'42 Autocar M2A1

MVPA member

coreyelliott

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Re: Head Gasket for a White HT
« Reply #22 on: August 13, 2020, 12:31:23 AM »
Great to hear!

Corey
1941 Autocar M2A1 (M2-13)

mkoloc

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Re: Head Gasket for a White HT
« Reply #23 on: August 13, 2020, 01:55:47 PM »
Here is a link to my YouTube Channel showing the track running after the valve fix'

                                https://youtu.be/unGx71W4fbU
Mark A.R. Koloc Sr.
LTC USA (RET)
1631 Bitter Creek Lane
Batavia, OH  45103
Cell:  715-821-9426

coreyelliott

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Re: Head Gasket for a White HT
« Reply #24 on: August 13, 2020, 03:38:47 PM »
Motor sounds great now, Mark.  Congratulations!  I know you're happy, I can hear it in your voice.

Corey
« Last Edit: August 15, 2020, 01:49:45 PM by coreyelliott »
1941 Autocar M2A1 (M2-13)

spec4don

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Re: Head Gasket for a White HT
« Reply #25 on: August 14, 2020, 08:14:39 PM »
Excellent!

Don G.
1941 M2A1 not restored
1942 M3 Diamond T Mostly restored
1943 M3A1 Under restoration
1967 M51A2 Tractor
1945 WC 63 needs restoration
1967 M36 Long wheel base duece
1951 M135 GMC Fire truck conversion

spillmk1

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Re: Head Gasket for a White HT
« Reply #26 on: August 15, 2020, 05:27:30 AM »
Very nice!!!!
These old long stroke motors are smooth running lumps!!

Keith
1955 M38A1
1952 M100
1941 M2A1
MVPA Member

mkoloc

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Re: Head Gasket for a White HT
« Reply #27 on: August 15, 2020, 12:02:21 PM »
You just gotta love these old beasts .. with the engine torque and the trany set up, you can drag a barn across a field!!

Took the Queen out for a drive today and she hit the pavement hard and like the regal beauty she is!!  Here is a link to my YouTube Channel of our adventure today.  It is such a kick to get and drive these babies, and the attention garnered by the public makes it the real deal regards preserving these historic and rare vehicles!!  Enjoy, I did!!

  https://youtu.be/j5U5e40e8yc
Mark A.R. Koloc Sr.
LTC USA (RET)
1631 Bitter Creek Lane
Batavia, OH  45103
Cell:  715-821-9426

RB-058

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Re: Head Gasket for a White HT
« Reply #28 on: August 15, 2020, 12:29:03 PM »
Another great video Mark! I'm experiencing that driving feeling through these! It will take me some time to reach that point but I'm getting motivated by this as well!

Keep m coming!

Rob
1943 White Halftrack M4A1

steve1973

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Re: Head Gasket for a White HT
« Reply #29 on: August 16, 2020, 12:00:41 PM »
Hi Mark,
I watched your video last night. Great job!!

Steve A.