And what is the correct order? thanks

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86Z28, GM 350, Jet perf Q-jet & chip Dual snorkel air cleaner, Edelbrock performer intake, Edelbrock headers, Edelbrock cat-back, Off road pipe, MSD 6AL, Accel Super Coil, Taylor Spiro-pro wires, Rapid fire plugs, Jet fan switch, World class t-5, Hurst Short Throw Shifter, Ram Flywheel, Center force dual friction clutch,Aluminum drive shaft, BW disc rear 3.45's & a posi, PBR calipers, Earls braided brake lines, Polygrapite bushings all the way around, poly tranny mount & torque arm mount, Hotchkis lower control arms & panhard rod, Rancho limiter straps, KYB struts & shocks, Gm Wonderbar, Edelbrock strut tower brace, SSM sub frame connectors, Jamex lowering springs, Carbon metallic brake pads, Crossed drilled rotors, Mobil 1 Tranny fluid & motor oil, GM syntheic rear end oil, K&N, Grant stering wheel, 1,200 watt system, Jet Black Paint, 91 Z28 rims, 92 wing, Tinted windows.

 

8.7....9..10....11.12
<-Front Of Engine TPI
2.1.....3..4.....5.6

5.6....4..1.....7.8
<-Front Of Engine TBI
9.10...3..2.....11.12

12.11...4.1.....5.6
<-Front Of Engine Carb
10.9....3.2.....7.8

Torque Down to 35LBS

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89 FORMULA 350 Edelbrock Cat-Back ,March Pulleys,Super Coil,MSD 6AL ,Edelbrock TES's, AFPR ,Shiftkit, Edelbrock Base ,AS&M Runners, Edelbrock Waterpump, Fast chip,1.6 RR's, 24# Injectors.

[This message has been edited by Mkos1980 (edited November 14, 2000).]

 

MKOS,

Where did you find that TPI sequence at?

 

search here.......
http://www.racer-x.f2s.com/proc/torkseq.htm


[This message has been edited by ron rizzotti (edited November 14, 2000).]

[This message has been edited by ron rizzotti (edited November 14, 2000).]

 

I see...that's what's listed as a "2nd" step on his page.

I wonder who approved that procedure? I'd have to look, but I'm sure my Helm's does not show it that way.

 

That TPI sequence looks like a good way to have problems.

Always torque from the center out. Never start on and end.

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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R

GO #3

 

The pattern comes staright out of the Haynes Manuel Yea the TPI one looks F**ked up but thats what it said. Hope some of it helped

 

Mkos1980 :

I just looked at my GM service manual and holly s**t!! You are right on the TPI sequence.

I stand corrected. I was wrong. Please forgive me.

Still looks messed up don't it??

I still wouldn't torque it that way.....I would use the "center out" method.


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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R

GO #3

[This message has been edited by Engineboy (edited November 15, 2000).]

 

Last time I looked TPI was

.9.5....2.1....8.12
10.6....3.4....7.11

But thats Just from memory, I could be wrong.



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85 Z28 - Daily Driver
60 Ranchero - Project ( Money Hole )

 

Hmmn...I wonder if that's in a newer manual? The one Helms for my '89, doesn't have a different 2nd/final sequence.

I got the manual about 3 years ago, I wonder if they've upgraded it by now?

FWIW, I did my intake about a year ago just doing it they way the "first" step shows, maybe 12-14K miles on it, and don't have any leaks.

 

So the aluminum intake get torqued to 35 lbs?

 

Mkos1980 has it correct, EXCEPT for the TPI. It shares the EXACT same sequence as the TBI and Carb. And it is 35 ft/lbs.

And that is right from the Helms (factory) service manual, 6A3-10

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If you live in Southeastern US, check us out!
South East Thirdgen


ASE Master Tech + L1
Savannah, GA

'87 Trans Am
S/D TPI retrofit including functional PassKey,
22# injectors,
Ported Plenum,
TB Coolant Bypass,
SSM SFC,
Boxed LCAs,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
KYB Shocks

'97 Bonneville SSE

 

I agree, all intakes (or where you use gaskets) should be torqued down (30-35 ft/lbs) from the center out, BUT in a cross pattern. I have never had a vacuum/oil leak with this method, not even with just using gaskets and no sealant.

11..5....3..1....8.12
Vehicle front, doesn't matter
9..7....2..4....6.10

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George P. Lara
1994 Z28 LT1 T56
1984 Z28 High Output
Member: SCCA, SCFB, SC3GFB
Chevy Info --> MadMike's

[This message has been edited by MRZ28HO (edited November 19, 2000).]