putting throttle body back together and return spring seems weak and doesn't snap ba - ZR-1 Net Registry Forums

Corvette95 · 05-17-2020

Putting my throttle body back together, the main shaft return springs seems to be weak so I wrapped the spring one more time, it was very tight, then the one of the pieces of wire on the springs wouldn't let the main shaft seat all the way, I took a small "j" hook and remove the spring from the catch, it seems to be better now on to the butterflies, there is no DAG on them nor was there before I took them out. The butterflies do go in and seat at an angle correct?

Jagdpanzer · 05-17-2020

Yes, they seat at an angle.
Let them seat closed first with screws slightly loose. Then tighten screws with the butterflies fully seated.
Don’t forget the red Loctite on the screws.

Sent from my iPhone using ZR-1 Net Registry

Corvette95 · 05-17-2020

Thanks! I am going to need one new brass screw, one of them is damaged where I ground it off. (the secondary butterfly is fine....thanks!)

05-17-2020	#1
Corvette95 Join Date: Jan 2006 Location: Decatur, AL Posts: 1,118	Help with throttle body reassembly... Putting my throttle body back together, the main shaft return springs seems to be weak so I wrapped the spring one more time, it was very tight, then the one of the pieces of wire on the springs wouldn't let the main shaft seat all the way, I took a small "j" hook and remove the spring from the catch, it seems to be better now on to the butterflies, there is no DAG on them nor was there before I took them out. The butterflies do go in and seat at an angle correct? __________________ Corvette95 Registry and Forum (************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454 Last edited by Corvette95; 05-17-2020 at 12:30 PM.*

05-17-2020	#2
Jagdpanzer Join Date: Apr 2007 Location: Northern VA Posts: 2,662	Re: Help with throttle body reassembly... Yes, they seat at an angle. Let them seat closed first with screws slightly loose. Then tighten screws with the butterflies fully seated. Don’t forget the red Loctite on the screws. Sent from my iPhone using ZR-1 Net Registry __________________ Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake

05-17-2020	#3
Corvette95 Join Date: Jan 2006 Location: Decatur, AL Posts: 1,118	Re: putting throttle body back together and return spring seems weak and doesn't snap Thanks! I am going to need one new brass screw, one of them is damaged where I ground it off. (the secondary butterfly is fine....thanks!) __________________ Corvette95 Registry and Forum (*************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454

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