Extreme Terrain
4x4Wire Trail Talk Forums: Jeep, Toyota, Mitsubishi, Pajero, Isuzu, Kia, 4WD, 4x4, SUV, Off-Road and OutdoorWire Forums


Search

Recent Posts on TrailTalk
Gen I 1989 Broken Hood Latch Solved!
by polar - 01/14/21 08:42 PM
1989 Montero Broken Hood Latch Cable!
by polar - 01/14/21 08:40 PM
torsion bar question
by rxinhed - 01/14/21 02:07 AM
suzi the psychic
by rascott - 01/11/21 06:28 AM
Sway Bar delete.. ???
by Trailmonkey - 01/07/21 05:29 PM
Vet over his Head
by chadzeilenga - 01/04/21 03:56 PM
‘89 Monty SWB - 1100 idle at start, -500 eventual
by chadzeilenga - 01/04/21 03:51 PM
Support 4x4Wire
New Topics on TrailTalk
Gen I 1989 Broken Hood Latch Solved!
by polar - 01/14/21 08:42 PM
torsion bar question
by tcb762 - 01/12/21 11:02 PM
‘89 Monty SWB - 1100 idle at start, -500 eventual
by BrooklynOpus - 01/04/21 03:14 PM
SOLD! New 1990-1995 Toyota 4Runner 4Dr Carpet
by code33 - 01/03/21 03:52 AM
Vet over his Head
by SATXGuy - 01/02/21 05:07 AM
KM145: What have I done wrong?
by TresMon - 12/28/20 05:45 PM
4x4 Gallery
Photos of rig
Attila
99 Monterrible Sport
Scar the Cylon Raider
Mercenary Sergeant: Code Name "Sapphire"
More News on the 'Wire

4x4Voice
4x4Wire
MUIRNet-News
OutdoorWire
Who's Online Now
0 registered members (), 98 guests, and 6 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums37
Topics138,168
Posts1,080,940
Members15,144
Most Online907
Dec 28th, 2019
Previous Thread
Next Thread
Print Thread
Rate Thread
Head & Cap Bolt Lube? #1102952 02/03/17 03:40 PM
Joined: Jan 2004
Posts: 383
Stevie Offline OP
Mudrunner
[Linked Image]

This book, along with the various Clymer, Chilton, or Haynes manuals on 20R powered trucks, do not mention using any type of bolt dressing when installing the 12mm Head or Main Bearing Cap Bolts.

Is this correct?

Steve


'80 4X4 Longbed
From the Off-Road World
Re: Head & Cap Bolt Lube? [Re: Stevie] #1102996 02/06/17 01:47 PM
Joined: Jan 2017
Posts: 17
L
Lha1988 Offline
Need a Spot
Most instructions recommend oil after cleaning threads[with a chaser or tap],using new head bolts,etc. I've used anti-seize on head bolts with good results. I usually clean the threads in the block with a brass brush and WD-40,then like a gun barrel,with oiled swabs. right before install.I spray carb cleaner and air to get any oil and gunk out. I always retorque after a few hundred miles and check valves.

Re: Head & Cap Bolt Lube? [Re: Stevie] #1103003 02/07/17 01:16 AM
Joined: Feb 2005
Posts: 7,340
R
rxinhed Offline
Trail Leader
*****
Make sure to double check whether the torque settings are for dry or lubed conditions. If the spec is set dry and you lube the threads with oil, anti-sieve, what have you, the result will be overtightened bolts or studs.

Re: Head & Cap Bolt Lube? [Re: Lha1988] #1103005 02/07/17 01:20 PM
Joined: Jan 2004
Posts: 383
Stevie Offline OP
Mudrunner
Originally Posted by Lha1988
Most instructions recommend oil after cleaning threads[with a chaser or tap],using new head bolts,etc. I've used anti-seize on head bolts with good results. I usually clean the threads in the block with a brass brush and WD-40,then like a gun barrel,with oiled swabs. right before install.I spray carb cleaner and air to get any oil and gunk out. I always retorque after a few hundred miles and check valves.


Thank you sir.

That's pretty much how I've done it in the past:
Run a flat-bottom 12 X 1.75 tap thru both Head Bolt and Crankshaft Bearing Cap holes, swiveling the block surface down, douching holes with Brake Cleaner, then blow out with compressed air. And it wouldn't be complete without me running a die over the bolt threads either. I haven't ever replaced Head Bolts.

Moly-B is the anti-seize product I've used. On Spark Plug threads too.
In your folk's estimation, is Molybdenum Disulfide Grease equal to the dedicated anti-seize products out there?

Thanks much.
Steve


'80 4X4 Longbed
Re: Head & Cap Bolt Lube? [Re: rxinhed] #1103006 02/07/17 01:22 PM
Joined: Jan 2004
Posts: 383
Stevie Offline OP
Mudrunner
Originally Posted by rxinhed
Make sure to double check whether the torque settings are for dry or lubed conditions. If the spec is set dry and you lube the threads with oil, anti-sieve, what have you, the result will be overtightened bolts or studs.


That's an interesting point.

Thank you!
Steve


'80 4X4 Longbed

Moderated by  4Crawler, 4x4Wire, kewlynx, Mike Bondi 







4x4Wire Social:

| 4x4Wire on FaceBook |


OutdoorWire, 4x4Wire, JeepWire, TrailTalk, MUIRNet-News, and 4x4Voice are all trademarks and publications of OutdoorWire, Inc. and MUIRNet Consulting.
Copyright (c) 1999-2019 OutdoorWire, Inc and MUIRNet Consulting - All Rights Reserved, no part of this publication may be reproduced in any form without express written permission
You may link freely to this site, but no further use is allowed without the express written permission of the owner of this material.
All corporate trademarks are the property of their respective owners.

Powered by UBB.threads™ PHP Forum Software 7.7.3
(Release build 20190728)
PHP: 7.2.34 Page Time: 0.010s Queries: 15 (0.003s) Memory: 2.8428 MB (Peak: 3.1634 MB) Data Comp: Off Server Time: 2021-01-20 14:15:11 UTC
Valid HTML 5 and Valid CSS