Create an account Home  ·  ·  Forums  ·  ·  Articles  ·  ·  Downloads  ·  ·  Photo Gallery  
Login
Nickname

Password

Don't have an account yet? You can create one here.

Navigation
· Home
· Article Archive
· Article Submit
· Downloads
· FAQ
· Forums
· Members List
· Photo Gallery
· Private Messages
· Web Links
· Your Account

Search Articles



Forums

1953 M38A1 PCV Question
M38A1 PCV vacuum line routing
Three M38A1's for sale - Westfield Massachusetts -$6500
Profile problems
M38 Fender mount Blackout Headlight with bracket
Wes K. and Ryan M. Appreciation Day
Production month/year of my NEKAF M38A1
Request for private photo gallery
M38 Fuel Strainer Extension Tube wanted.
11" Brake parts identification help

Willys M Jeeps Forums


willysmjeeps.com :: View topic - Exhaust Manifold Studs
 Forum FAQForum FAQ   SearchSearch   UsergroupsUsergroups   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Exhaust Manifold Studs

 
Post new topic   Reply to topic    willysmjeeps.com Forum Index -> Technical Knowledge Base
View previous topic :: View next topic  
Author Message
cobra5
Member


Joined: Mar 10, 2013
Posts: 54
Location: Stevensville, Montana

PostPosted: Wed Mar 31, 2021 10:32 am    Post subject: Exhaust Manifold Studs Reply with quote

I need to know if the studs go into the water jacket. Iím getting coolant leaking out the nuts at #1 &#4. Iím planning on pulling the valve cover and checking torque on the head bolts. This engine was rebuilt by the last owner. I do not know how long ago or how many miles he put on it. The engine looks like it was rebuilt yesterday. I canít ask the owner because I bought it from his estate and they have no idea.
_________________
1951 M37 WOW, 1953 M37 WOW, 1954 M37 WOW, 1953 M38-A1, 1954 M38-A1, 1964 M151-A1, 1967 M151-A1, 1968 M151-A1, 1978 M151-A2, 1989 M35A2C, 1965 M416, 1966 M416, 1967 M416
MSgt, USAF Retired 1/84-10/05
Back to top
View user's profile Send private message Send e-mail
RonD2
Member


Joined: Oct 02, 2014
Posts: 1006
Location: South Carolina, Dorchester County

PostPosted: Wed Mar 31, 2021 11:52 am    Post subject: Reply with quote

Paragraph 118 on page 132 of the F134 Engine TM9-8015-1 says yes.

That manual is free in the downloads section.

Good luck!
_________________
Ron D.
1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51

ďThe only good sports car that America ever made was the Jeep."
--- Enzo Ferrari

Back to top
View user's profile Send private message Send e-mail
dpcd67
Member


Joined: Nov 25, 2016
Posts: 168
Location: Iowa

PostPosted: Thu Apr 01, 2021 12:41 pm    Post subject: Reply with quote

If he had put permatex on the studs before he installed them it wouldn't leak.
If it was mine, I would pull them and do that.
_________________
M38 23100 June 51
M38 34523 Sep 51
M606/CJ3B 1964 Kaiser 57348 118458
M37B1 1963
Willys MB 1944
Ford GPW 1942
Dodge WC63 1943
Dodge Power Wagon WM300 1967
Plymouth Barracuda, 1973, 340 4 barrel
All ground up restored by me.
Lots of others.
Back to top
View user's profile Send private message
cobra5
Member


Joined: Mar 10, 2013
Posts: 54
Location: Stevensville, Montana

PostPosted: Thu Apr 01, 2021 12:54 pm    Post subject: Reply with quote

RonD2 wrote:
Paragraph 118 on page 132 of the F134 Engine TM9-8015-1 says yes.

That manual is free in the downloads section.

Good luck!


It took me a while to find them because they aren't in the download section under M38/M38A1 file section. I skipped right past the section that states, "manuals" because I thought they were all misc. manuals not related to the M38A1. Anyway thanks for the direction and now I will be spending the day downloading the rest of them.
_________________
1951 M37 WOW, 1953 M37 WOW, 1954 M37 WOW, 1953 M38-A1, 1954 M38-A1, 1964 M151-A1, 1967 M151-A1, 1968 M151-A1, 1978 M151-A2, 1989 M35A2C, 1965 M416, 1966 M416, 1967 M416
MSgt, USAF Retired 1/84-10/05
Back to top
View user's profile Send private message Send e-mail
cobra5
Member


Joined: Mar 10, 2013
Posts: 54
Location: Stevensville, Montana

PostPosted: Thu Apr 01, 2021 12:57 pm    Post subject: Reply with quote

dpcd67 wrote:
If he had put permatex on the studs before he installed them it wouldn't leak.
If it was mine, I would pull them and do that.


I read several threads about the permatex so I will go over those again and find the one everyone recommends. Thanks for the heads up.
_________________
1951 M37 WOW, 1953 M37 WOW, 1954 M37 WOW, 1953 M38-A1, 1954 M38-A1, 1964 M151-A1, 1967 M151-A1, 1968 M151-A1, 1978 M151-A2, 1989 M35A2C, 1965 M416, 1966 M416, 1967 M416
MSgt, USAF Retired 1/84-10/05
Back to top
View user's profile Send private message Send e-mail
jake138
Contributor
Contributor


Joined: Nov 18, 2014
Posts: 42
Location: Connecticut

PostPosted: Fri Apr 02, 2021 11:34 am    Post subject: Reply with quote

This is what I used, it's a white paste that looks like liquid pipe tape.

https://www.permatex.com/products/thread-compounds/thread-sealants/permatex-thread-sealant-with-ptfe-2/
_________________
Jake, Central CT
51 M38
Back to top
View user's profile Send private message
cobra5
Member


Joined: Mar 10, 2013
Posts: 54
Location: Stevensville, Montana

PostPosted: Tue Apr 06, 2021 1:41 pm    Post subject: Reply with quote

I pulled the studs and they were bare. Also discovered that two studs were missing. So is there a civilian part number for the exhaust studs and gasket? Iím going to look in the parts book and see if it calls out the dimensions of the studs.
_________________
1951 M37 WOW, 1953 M37 WOW, 1954 M37 WOW, 1953 M38-A1, 1954 M38-A1, 1964 M151-A1, 1967 M151-A1, 1968 M151-A1, 1978 M151-A2, 1989 M35A2C, 1965 M416, 1966 M416, 1967 M416
MSgt, USAF Retired 1/84-10/05
Back to top
View user's profile Send private message Send e-mail
RonD2
Member


Joined: Oct 02, 2014
Posts: 1006
Location: South Carolina, Dorchester County

PostPosted: Tue Apr 06, 2021 7:16 pm    Post subject: Reply with quote

Hi Cobra,
Wow. It's hard to imagine that coolant wasn't also gushing out of those missing <2 out of 5 total> stud holes? What's with that?

I didn't look in the manual for you this time, but many of the reliable and venerable vendors of our military jeep parts can hook you up with the proper studs and gaskets......MWM, RFJP, BMJP, QTM, and AJP come to mind.

Those are very common parts and relatively inexpensive. Might even be able to buy them at your local auto parts store. Tell them it's for a Willys F134 motor.

Good luck!
_________________
Ron D.
1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51

ďThe only good sports car that America ever made was the Jeep."
--- Enzo Ferrari

Back to top
View user's profile Send private message Send e-mail
cobra5
Member


Joined: Mar 10, 2013
Posts: 54
Location: Stevensville, Montana

PostPosted: Fri Apr 09, 2021 3:14 pm    Post subject: Reply with quote

RonD2 wrote:
Hi Cobra,
Wow. It's hard to imagine that coolant wasn't also gushing out of those missing <2 out of 5 total> stud holes? What's with that?

I didn't look in the manual for you this time, but many of the reliable and venerable vendors of our military jeep parts can hook you up with the proper studs and gaskets......MWM, RFJP, BMJP, QTM, and AJP come to mind.

Those are very common parts and relatively inexpensive. Might even be able to buy them at your local auto parts store. Tell them it's for a Willys F134 motor.

Good luck!


RonD2,

I checked the manual and I was incorrect about the missing studs. The holes I thought should have studs are actually extra threaded holes in the block. The front hole is for the fording cable bracket. Not sure about the aft hole. I feel better knowing that the manifold is probably okay and not warped as it would have been if studs were missing. Another fun fact is that the studs had no rust on them so this engine can't be too old of a build. I called John at MWM to get parts coming my way.
_________________
1951 M37 WOW, 1953 M37 WOW, 1954 M37 WOW, 1953 M38-A1, 1954 M38-A1, 1964 M151-A1, 1967 M151-A1, 1968 M151-A1, 1978 M151-A2, 1989 M35A2C, 1965 M416, 1966 M416, 1967 M416
MSgt, USAF Retired 1/84-10/05
Back to top
View user's profile Send private message Send e-mail
RonD2
Member


Joined: Oct 02, 2014
Posts: 1006
Location: South Carolina, Dorchester County

PostPosted: Mon Apr 12, 2021 7:34 pm    Post subject: Reply with quote

Hi Cobra,
Please close the loop and let us know how it worked out for you. Too many posts get left hanging.....

Good luck!
_________________
Ron D.
1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51

ďThe only good sports car that America ever made was the Jeep."
--- Enzo Ferrari

Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    willysmjeeps.com Forum Index -> Technical Knowledge Base All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Powered by phpBB © 2001 phpBB Group
Forums ©

 



PHP-Nuke Copyright © 2005 by Francisco Burzi. This is free software, and you may redistribute it under the GPL. PHP-Nuke comes with absolutely no warranty, for details, see the license.