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04-23-2020
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#1 |
 
Join Date: Jan 2006
Location: Decatur, AL
Posts: 1,131
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Bosch Injectors - Is this correct oring set up?
I have read the threads on injector o'rings, I am replacing the IH O'rings, I have ohm'd these injectors all are good. This is how they came out, is the o'ring set up correctly and properly identified.
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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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04-23-2020
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#2 |
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Join Date: Apr 2020
Location: Ridgecrest ca
Posts: 70
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Re: Bosch Injectors - Is this correct oring set up?
One thin guy to look for is the spray pattern . My checked out ok till I took off plenum and turned on fuel pump and 2 just sprayed a stream
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04-23-2020
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#3 |
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Join Date: Jan 2006
Location: Decatur, AL
Posts: 1,131
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Re: Bosch Injectors - Is this correct oring set up?
But do the rings look right for the primary and secondary ?
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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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04-23-2020
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#4 |
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Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,843
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Re: Bosch Injectors - Is this correct oring set up?
Here is how mine looked on my 90’ when I was running Bosch injectors. I can never remember which was primary and which secondary however only one has the O-ring mounted to the injector. The other has the O’ring mounted in the injector housing.
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04-23-2020
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#5 | |
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Join Date: Jan 2006
Location: Decatur, AL
Posts: 1,131
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Re: Bosch Injectors - Is this correct oring set up?
Set up looks the same, the primary should be on left of your photo with orange tip the on on the right is secondary...right?
Quote:
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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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04-23-2020
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#6 |
  
Join Date: Aug 2005
Location: Northridge, CA
Posts: 1,456
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Re: Bosch Injectors - Is this correct oring set up?
Free: Thanks, Jerry! Jerry's Gaskets
https://www.jerrysgaskets.com/lower-...llation-guide/ http://www.zr1specialist.com/HAT%20W...eplacement.pdf
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1995 ZR-1 #106 Blk/ Blk Owned by me since 2000. 93K miles, but not on motor :-) Mods the way I want it, Not afraid to drive it! Last edited by tf95ZR1; 04-23-2020 at 11:43 PM. Reason: Wanted 2 |
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04-24-2020
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#7 |
 
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,466
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Re: Bosch Injectors - Is this correct oring set up?
For what it's worth here (maybe) the Accel injectors (part # 150821 @ Summit Racing) which many, many ZR-1s are running on are identical, i,e., they both have provision for an O-ring at the injector tip. However, on the 1990 ZR-1 ONLY, the ridges provided to hold the O-ring on the tip of the primary injector can be ground off @ your discretion. (Theoretically, the ridges left on provide a bit of turbulence in lieu of the injector boss [often removed as part of the full porting of the 1990 IHs] to promote better atomization of the fuel.)
Last edited by Paul Workman; 04-24-2020 at 07:34 AM. |
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