Proper torque sequence for blower-to intake bolts? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Forced Induction All questions and problems regarding Superchargers, Turbos, NOS, ZEX, intercoolers, water injection, etc.

Reply
 
 
 
Thread Tools Search this Thread
Old 09-04-2004, 02:23 AM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jul 2004
Posts: 226
Thanks: 0
Thanked 0 Times in 0 Posts
DJ SHO is on a distinguished road
Default Proper torque sequence for blower-to intake bolts?

Can someone tell me the proper torque sequence for the supercharger-to-intake bolts? Possibly with a pic? I unfortuneately have a wicked vaccum leak and aweful whistling noise (and a hissing) and I think it'* due to the fact that I just winged it putting the blower back on. Runs fine except around idle, and whistles REALLY LOUD just above idle, so I know it'* a vaccum leak.

Thanks in advance.
DJ SHO is offline   Reply With Quote
Old 09-04-2004, 02:54 AM   #2
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

The book (at least the one I have here while that filcher DrJay has my FSM'* in WA) says nothing. So standard rules apply. I've done 2 now, and I use a random pattern at 1/2 torque, then a zigzag up and back, every other one, front to rear at full torque.
willwren is offline   Reply With Quote
Old 09-04-2004, 03:15 AM   #3
Senior Member
Posts like a Northstar
 
Join Date: Sep 2002
Location: Sedro-Woolley, Washington
Posts: 604
Thanks: 0
Thanked 0 Times in 0 Posts
kennlee is on a distinguished road
Default

I too couldn't find any thing in any of the manuals except GM does say:
Supercharger to lower Intake is to be torqued to 19 ft.lb
Boost Control Solenoid to Bypass Actuator to 22 ft.lb
and Bypass Actuator to Supercharger is torqued to 22 ft.lb

but no pattern is indicated, so when I did my */C I torqued from the center out in a crossing pattern in three steps 10 lb 15 lb then 19 ft.lb

6 2 4

3 1 5


this is a standard rule of thumb for torque patterns if they are not indicated in a manual and should tighten even over the mating areas.

TIP: don't forget those yellow coolant passage o-rings

ken
kennlee is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
supercharger torque & sequence jwagner Forced Induction 11 09-12-2016 06:05 AM
Lower Intake Manifold Torque Spec and Sequence jake7995 Buick 6 01-21-2011 12:15 PM
L36 intake torque and tightening sequence Chris95GT 1992-1999 1 03-27-2008 11:15 PM
I need torque sequence!! naMyegooBehT 1992-1999 8 09-29-2006 02:30 PM
Head Bolts - Torque Specification and Sequence Layla 1992-1999 43 04-15-2005 10:51 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:42 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.