Go Back   The Supercar Registry > General Discussion > Mopar


Reply
 
Thread Tools Display Modes
  #11  
Old 07-13-2020, 05:41 PM
Bill Pritchard Bill Pritchard is offline
Yenko Contributing Member
 
Join Date: Mar 2002
Location: Valley of the Sun, AZ
Posts: 5,814
Thanks: 1,237
Thanked 1,498 Times in 719 Posts
Default

Quote:
Originally Posted by njsteve View Post
This is what happens when you put them in backwards (or swap them left for right bank).
That's EXACTLY what happened on my Challenger. It came with all 8 pistons the same from the factory.....IIRC, there is an offset on the piston pin of a few thousandths of an inch, the only difference between left & right bank pistons. Apparently when that engine was originally built either they were out of one type of piston or else someone just screwed up and put in all the same ones. Well, there is an arrow stamped on the piston head that is supposed to point forward. When I rebuilt the engine, being a newbie to 426 Hemi intricacies, I made sure to have all the arrows pointing to the front like the manual said. When I first fired it up I just thought the lifters were taking a long time to pump up (it was a 70 so it had hydraulic lifters). Ran for about 2 or 3 minutes before I got exactly what is pictured above in one cylinder Luckily it did no other damage....no scoring of the cylinder wall or anything major, just a lot of bent valves and marred piston tops on one bank.
__________________
Bill Pritchard

73 Camaro RS Z28, L82, M20, C60

Last edited by Bill Pritchard; 07-13-2020 at 05:43 PM.
Reply With Quote
The Following User Says Thank You to Bill Pritchard For This Useful Post:
Xplantdad (07-13-2020)
  #12  
Old 07-13-2020, 09:15 PM
olredalert olredalert is offline
Yenko Contributing Member
 
Join Date: Dec 2002
Location: Marine City, Mi.
Posts: 8,826
Thanks: 27,237
Thanked 3,757 Times in 1,593 Posts
Default

Quote:
Originally Posted by Bill Pritchard View Post
That's EXACTLY what happened on my Challenger. It came with all 8 pistons the same from the factory.....IIRC, there is an offset on the piston pin of a few thousandths of an inch, the only difference between left & right bank pistons. Apparently when that engine was originally built either they were out of one type of piston or else someone just screwed up and put in all the same ones. Well, there is an arrow stamped on the piston head that is supposed to point forward. When I rebuilt the engine, being a newbie to 426 Hemi intricacies, I made sure to have all the arrows pointing to the front like the manual said. When I first fired it up I just thought the lifters were taking a long time to pump up (it was a 70 so it had hydraulic lifters). Ran for about 2 or 3 minutes before I got exactly what is pictured above in one cylinder Luckily it did no other damage....no scoring of the cylinder wall or anything major, just a lot of bent valves and marred piston tops on one bank.
----Ouch!......Bill S
Reply With Quote
The Following User Says Thank You to olredalert For This Useful Post:
Bill Pritchard (07-14-2020)
  #13  
Old 07-14-2020, 02:23 AM
wheelhop wheelhop is offline
Yenko Contributing Member
 
Join Date: Feb 2006
Location: Chicago, Illinois
Posts: 1,779
Thanks: 15
Thanked 296 Times in 138 Posts
Default

Nice purchase Al. Bring it to SCR!
__________________
69 Chevelle SS L88 "Day-2" Lemans Blue
69 Chevelle SS L34 postsedan project-Azure Turquoise
Reply With Quote
  #14  
Old 07-14-2020, 02:29 PM
RS_COPO_Canuck RS_COPO_Canuck is offline
Yenko Contributing Member
 
Join Date: Feb 2015
Location: Toronto
Posts: 326
Thanks: 2
Thanked 32 Times in 21 Posts
Default

Congrats! Nice color combo.
I just so happened to take mine for a spin yesterday!
Drive it and enjoy it!
Attached Images
 

Last edited by RS_COPO_Canuck; 07-14-2020 at 02:31 PM. Reason: Added
Reply With Quote
The Following 3 Users Say Thank You to RS_COPO_Canuck For This Useful Post:
Lee Stewart (07-14-2020), markinnaples (07-14-2020), RPOLS3 (07-16-2020)
  #15  
Old 07-14-2020, 05:11 PM
A12pilot's Avatar
A12pilot A12pilot is offline
Yenko Advertising Member
 
Join Date: Nov 2014
Location: DFW
Posts: 2,687
Thanks: 0
Thanked 4,575 Times in 1,136 Posts
Default

Oh man! Friggin' SAHWEEEEETTT!! Congrats on that purchase! Beeeeeutimous!!

Cheers
Dave
Reply With Quote
  #16  
Old 07-16-2020, 02:22 PM
Woj's Avatar
Woj Woj is offline
Yenko Contributing Member
 
Join Date: Nov 2005
Location: Cleveland, OH
Posts: 1,847
Thanks: 937
Thanked 403 Times in 160 Posts
Default

Congrats Albert. What a beautiful car. Phil
Reply With Quote
  #17  
Old 07-16-2020, 07:48 PM
hurstL78 hurstL78 is offline
Yenko Contributing Member
 
Join Date: Mar 2009
Location: Mt. Sterling, Kentucky
Posts: 82
Thanks: 89
Thanked 34 Times in 21 Posts
Default

Nice ride! 👍🏽
__________________
Van Gregory Hurst


68 Chevelle SS396 L78
68 Malibu 327 Day 2
69 Chevelle COPO
69 300 Deluxe
70 Chevelle SS454
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 10:07 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.

O Garage vBulletin Plugins by Drive Thru Online, Inc.