Discovery II Talk about the Land Rover Discovery II within.
Sponsored by:
Sponsored by:

ARP studs pulled my threads

Thread Tools
 
Search this Thread
 
  #21  
Old 04-13-2023, 02:36 PM
dswilly's Avatar
Rock Crawling
Join Date: Jan 2011
Posts: 492
Received 140 Likes on 97 Posts
Default

So, with the longer studs you do not need to increase the depth of the stock threaded hole in the block? Just tap it deeper?
 
  #22  
Old 04-13-2023, 04:09 PM
Tony Luna's Avatar
Winching
Thread Starter
Join Date: Aug 2012
Location: San Mateo, CA
Posts: 538
Received 204 Likes on 102 Posts
Default

Originally Posted by Richard Gallant
@Tony Luna Cracked blocks and stripped threads, it is old info back 6 or 7 years. I researched when I did my heads about 4 years ago. To be fair the recommended torques in that info were way stupid high too, sorry but I can not locate the info I found. If they are actually made for the Rover V8 you should be fine, as I recall a the issue was people sourcing Buick parts, which are not the same
Thank you.

Final torque on these is 70 ft/lbs.

Yes, the studs with longer threads are specifically for the ROVER V8.
 
  #23  
Old 04-13-2023, 04:16 PM
Tony Luna's Avatar
Winching
Thread Starter
Join Date: Aug 2012
Location: San Mateo, CA
Posts: 538
Received 204 Likes on 102 Posts
Default

Originally Posted by Richard Gallant
@Tony Luna Cracked blocks and stripped threads, it is old info back 6 or 7 years. I researched when I did my heads about 4 years ago. To be fair the recommended torques in that info were way stupid high too, sorry but I can not locate the info I found. If they are actually made for the Rover V8 you should be fine, as I recall a the issue was people sourcing Buick parts, which are not the same
Thank you.

Final torque on these is 70 ft/lbs.

Yes, the studs with longer threads are specifically for the ROVER V8.
 
  #24  
Old 04-13-2023, 04:18 PM
Tony Luna's Avatar
Winching
Thread Starter
Join Date: Aug 2012
Location: San Mateo, CA
Posts: 538
Received 204 Likes on 102 Posts
Default

Originally Posted by dswilly
So, with the longer studs you do not need to increase the depth of the stock threaded hole in the block? Just tap it deeper?
Original holes are already threaded all the way down.
 
  #25  
Old 04-21-2023, 12:54 PM
Tony Luna's Avatar
Winching
Thread Starter
Join Date: Aug 2012
Location: San Mateo, CA
Posts: 538
Received 204 Likes on 102 Posts
Default

Here goes nothing…



 
  #26  
Old 04-21-2023, 05:09 PM
Discorama's Avatar
Recovery Vehicle
Join Date: Jun 2018
Location: CA
Posts: 1,145
Received 458 Likes on 270 Posts
Default

Probably interesting in that context, Project Farm tests thread repairs:

I am facing a similar problem with a water pump thread.
 
The following users liked this post:
V50-M66 (04-22-2023)
  #27  
Old 04-23-2023, 11:50 AM
Tony Luna's Avatar
Winching
Thread Starter
Join Date: Aug 2012
Location: San Mateo, CA
Posts: 538
Received 204 Likes on 102 Posts
Default

Originally Posted by Discorama
Probably interesting in that context, Project Farm tests thread repairs: https://www.youtube.com/watch?v=jknMrFOGMOQ

I am facing a similar problem with a water pump thread.
Heli coli for the water pump thread for sure.

I talked to three different Rover V8 builders and they all said to go wit heli coils for the stripped head bolt threads. I did, and I managed to botch one of four holes I decided to do - tapped it slightly off. Got a heli
coil removal tool and installed the Full Torque blind insert from the video above. Very nice. So much so that I thought about redoing the other three heli coils but decided not to. So now I have three heli coils, one Full Torque insert, and new studs with much longer threads that go into the block all around. Cleaned up all the threads and will install the heads this pm. 🤞




 

Last edited by Tony Luna; 04-23-2023 at 10:55 PM.
The following 2 users liked this post by Tony Luna:
Discorama (04-23-2023), Richard Gallant (04-23-2023)
  #28  
Old 04-25-2023, 12:53 AM
Tony Luna's Avatar
Winching
Thread Starter
Join Date: Aug 2012
Location: San Mateo, CA
Posts: 538
Received 204 Likes on 102 Posts
Default

Originally Posted by XRAD
who makes these longer studs?
Sorry I missed this. TWS in Connecticut.
 
  #29  
Old 04-25-2023, 06:32 PM
RoverMasterTech's Avatar
Recovery Vehicle
Join Date: May 2008
Location: Howell, NJ
Posts: 808
Received 75 Likes on 62 Posts
Default

IDK why you guys use ARP studs. There is 0 advantage over TTY bolds. In fact, TTY will almost always provide a more even clamping pressure.
 
The following 2 users liked this post by RoverMasterTech:
Brandon318 (04-25-2023), Motorhead1 (05-04-2023)
  #30  
Old 04-25-2023, 07:51 PM
Join Date: Sep 2017
Location: Mission BC Canada
Posts: 3,471
Received 1,151 Likes on 796 Posts
Default

@RoverMasterTech For me it was simple I have the tools to deal with studs and nuts, TTY require precise turns to be properly set and with the engine in the bay that can pretty tough. And I disagree properly torqued studs and bolts provide just as even a clamping pressure as tty bolts, I could be wrong there but I see no reason why not.
 
The following users liked this post:
Best4x4 (04-25-2023)


Quick Reply: ARP studs pulled my threads



All times are GMT -5. The time now is 03:42 AM.