LOST JEEPS
http://www.lostjeeps.com/forum/phpBB3/

CRD Head Bolt Research Request: We need your data!
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=79984
Page 7 of 7

Author:  krautastic [ Wed Aug 02, 2017 2:10 pm ]
Post subject:  Re: CRD Head Bolt Research Request: We need your data!

As I got into this, my ac delco digital torque gauge with socket, didn't fit the back head bolts. Then I tried using my torque wrench, but it appears that this does not click in reverse (I tried around 100lb based on other bolts, didn't get a click and tried at a lower value of 30 and did not get a click, so the 4 bolts at the back of the head don't have values. But, my headgasket leak is occuring into cylinder 2.

CRD YEAR: 2005
MILEAGE: 156k
HEAD DATE STAMP: 09/09/04
BOLT TORQUE CENTER ROWS:
01: 108.6
02: 117.2
03: 111.9
04: 109.2
05: error
06: error
07: 111.5
08: 115.4
09: 110.9
10: 117

BOLT TORQUE OUTER ROWS:
11: 101.8
12: 107.7
13: error
14: error
15: 97.5
16: 105.4
17: 102.5
18: 94.2

Here is my block. You can see the HOAT pooled up in cylinder 2:
Image
Image

Machine shop said head warp was less than .002". They decked the head .005" to get rid of impressions left by the previous headgasket. Leaking was definitely occurring to the outside of the pistons, between water jackets. When I torqued the head, the order I used was the one in the image, having not seen the text in the FSM saying to jump all around using a different order. That's a really poor job by the people writing the FSM, labeling the bolts one way only to torque them in a different order in the text.

Author:  LeadvilleLarry [ Tue Sep 19, 2017 8:41 pm ]
Post subject:  Re: CRD Head Bolt Research Request: We need your data!

CRD YEAR: 2005
MILEAGE: 113483
BOLT TORQUE CENTER ROWS:
01: 160
02: 160
03: 95
04: 170
05: 160
06: 150
07: 155
08: 95
09: 125
10: 120

BOLT TORQUE OUTER ROWS:
11: 145
12: 115
13: 145
14: 145
15: 140
16: 110
17: 150
18: 120

Author:  JeepDzl [ Tue Feb 27, 2018 2:44 pm ]
Post subject:  Re: CRD Head Bolt Research Request: We need your data!

I am a noob, I'll get that out of the way... I have a 2006 Jeep Liberty CRD Limited.
Please help, I am getting my CRD rebuilt and the mechanic cannot find the instruction for the ARP Stud kit or torque values. The ARP was installed by the previous owner, called ARP they said they didn't make a kit and could not provide torque values. Called CarID (where the previous owner purchased the kit from) and they wouldn't give the specs without buying a new kit. Mechanic said he suggested ordering factory studs and I obviously don't want to do that. Please help, any information would be very much appreciated. -J

Author:  geordi [ Tue Feb 27, 2018 2:54 pm ]
Post subject:  Re: CRD Head Bolt Research Request: We need your data!

Emailed you.

Author:  WWDiesel [ Tue Feb 27, 2018 3:18 pm ]
Post subject:  Re: CRD Head Bolt Research Request: We need your data!

From another post:

With the ARP studs, the general rule is 130 ft/lbs on the ten inner stud nuts and 125 for the eight outer ones.
Torque them down evenly following the same sequence as given in the FSM.
70, 100, then 125/130.

:SOMBRERO:

Author:  thatoneguy [ Sat Dec 22, 2018 4:18 pm ]
Post subject:  Re: CRD Head Bolt Research Request: We need your data!

2005 CRD 190,000 Never apart until now. Un-torqued with a Snap on digital torque wrench recently calibrated. Head gasket did not appear to be leaking and head was straight, taken off because of bent exhaust valve and broken off glow plug when doing a rocker and ARP stud update. 3 failed/broken rockers at 190,000 motor still ran great other than odd thump noise in the intake all other rockers wore out.
1-171
2-167
3-167
4-150
5-157
6-159
7-165
8-166
9-165
10-175
11-112
12-130
13-122
14-134
15-130
16-134
17-137
18-133

Author:  gtmiller [ Tue Jun 04, 2019 2:50 am ]
Post subject:  Re: CRD Head Bolt Research Request: We need your data!

Not sure if you're still collecting data, but I had the intake/valve cover off so I replaced the head bolts with ARP studs one at a time:

No head gasket leak or head warp, at least to my best knowledge. (No significant signs if any).


CRD YEAR: 06
MILEAGE: 146,000 (235,000km)
BOLT TORQUE CENTER ROWS:
01: 90
02: 130
03: 140
04: 120
05: 115
06: 115
07: 130 (It should be noted, this bolt was rusty)
08: 115
09: 120
10: 110

BOLT TORQUE OUTER ROWS:
11: 135
12: 135
13: 130
14: 140
15: 135
16: 140
17: 135
18: 135

Page 7 of 7 All times are UTC - 5 hours [ DST ]
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/