Anyone knows the correct size for M38's bolt used to hold the water pump ? have all bolts the same length ? and the correct washer is external tooth lock or split lock ?
I sent mine to service and now is leaking at the gasket after assembling it back.
Many thanks in advance.
M38 water pump - correct bolt size and washer
-
- G-Corporal
- Posts: 23
- Joined: Mon Aug 08, 2011 10:05 am
- Location:
-
- Jeep Heaven
- Posts: 49841
- Joined: Sun Mar 02, 2008 12:37 pm
- Location: Proving Ground
Re: M38 water pump - correct bolt size and washer
M-38 and M-38A1 Hex Head Bolts with Split Lock washers fixed to the bolts.
1 Each 5/16" NC X 2 1/2"
3 Each 5/16" NC X 7/8"
The MB/GPW, CJ-2Aand 3A used the same length Bolts, with 5/16" Split Lock Washers not fixed to the bolts.
CJ-5 used 3 Each bolts 1" long and One Each 2-1/2 Long. The CJ-5 Bolts had Split Washers made to them just like the M-38 and M-38a1.
It will be easier to go to your hardware store and buy the bolts. 1" will fit and do no harm.
Put a little Permatex #2 or #3 on the bolt threads.
1 Each 5/16" NC X 2 1/2"
3 Each 5/16" NC X 7/8"
The MB/GPW, CJ-2Aand 3A used the same length Bolts, with 5/16" Split Lock Washers not fixed to the bolts.
CJ-5 used 3 Each bolts 1" long and One Each 2-1/2 Long. The CJ-5 Bolts had Split Washers made to them just like the M-38 and M-38a1.
It will be easier to go to your hardware store and buy the bolts. 1" will fit and do no harm.
Put a little Permatex #2 or #3 on the bolt threads.
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
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
-
- G-Corporal
- Posts: 23
- Joined: Mon Aug 08, 2011 10:05 am
- Location:
Re: M38 water pump - correct bolt size and washer
Thanks Ben, for your kind help.
Who is online
Users browsing this forum: No registered users and 30 guests