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Old 07-02-2020   #21
Alex0413
 
Join Date: Jun 2020
Location: Baton Rouge, LA
Posts: 46
Default Re: Introduction: New member, new project, first ZR-1!

Quote:
Originally Posted by Ccmano View Post
For all practical purposes it?s all in the SOLUTIONS sticky at the top of the Tech section. Heres a short cut...
H


https://www.zr1.net/forum/showthread.php?t=16778
Thanks, now that is a wealth of ZR-1 knowledge!
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Old 07-02-2020   #22
Alex0413
 
Join Date: Jun 2020
Location: Baton Rouge, LA
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Default Re: Introduction: New member, new project, first ZR-1!

Today was the big day: time to get my ZR-1 home! I got a rollback truck to tow her, and drop her right in her new room:

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Old 07-02-2020   #23
Alex0413
 
Join Date: Jun 2020
Location: Baton Rouge, LA
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Default Re: Introduction: New member, new project, first ZR-1!

First thing of order: Drain the fuel, and see what the fuel system looks like.

Water had obviously pooled in the fuel area and rusted the fuel cap on. I had to fight it off with channel locks.
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I got the fuel pump assembly unbolted (only broke three bolts..) and wrestled the fuel pump assembly off. Water obviously got into the fuel tank, and rust was in the tank and fuel pump assembly.
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Time to drain the fuel/water/varnish/rust mixture out of the tank that has been marinating..
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There was a lot of crud on the bottom of the tank, once I got all the fuel out, I managed to get my arm in the tank and shop vac most the solids out. Tank isn't too bad, Going to get a bunch of brake cleaner tomorrow and get it much cleaner.
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Questions:

Is the fuel pump assembly/cage a ZR-1 specific piece or C4 generic? be nice to get a new one, but I can go to town with brake cleaner and a metal brush!

Best way to check the fuel pumps while they're out? Just put 12V to them on the bench?

Last edited by Alex0413; 07-02-2020 at 11:18 PM.
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Old 07-02-2020   #24
Alex0413
 
Join Date: Jun 2020
Location: Baton Rouge, LA
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Default Re: Introduction: New member, new project, first ZR-1!

Now it was time to move onto the LT-5 and do my first plenum removal. My manual hasn't came in yet, but I dove it and it was pretty easy to get everything off and the plenum off. I propped it up with a 2x4 and called it quits for day 1. Tomorrow I'll get everything off and start putting on new parts

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Old 07-03-2020   #25
lfalzarano
 
Join Date: Feb 2011
Location: Clayton, North Carolina
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Default Re: Introduction: New member, new project, first ZR-1!

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Originally Posted by Alex0413 View Post
Thanks for the welcomes! I got her home today, and will start dissecting and inspecting everything on the car! I ordered a factory GM manual for the LT5, for assistance with the plenum removal. Any good tips, tricks, write ups, or recommendations, please let me know!


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Old 07-03-2020   #26
Ccmano
 
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Default Re: Introduction: New member, new project, first ZR-1!

Fuel pump/sender assemblies are ZR-1 specific because of the dual pump setup. It?s probably one of the hardest items to find right now. Yours looks serviceable, unless you have rust eating through the main support structure. The pumps can be replaced individually. I would tear it down and try to neutralize the rust, replace both pumps (RockAuto) and clean the sender Rheostat. Worst case Mark Haibeck just wrote an article in the Registry (are you a member?) publication Heart of the Beast on how to convert the standard C4 single pump setup.
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Old 07-03-2020   #27
Alex0413
 
Join Date: Jun 2020
Location: Baton Rouge, LA
Posts: 46
Default Re: Introduction: New member, new project, first ZR-1!

Quote:
Originally Posted by Ccmano View Post
Fuel pump/sender assemblies are ZR-1 specific because of the dual pump setup. It?s probably one of the hardest items to find right now. Yours looks serviceable, unless you have rust eating through the main support structure. The pumps can be replaced individually. I would tear it down and try to neutralize the rust, replace both pumps (RockAuto) and clean the sender Rheostat. Worst case Mark Haibeck just wrote an article in the Registry (are you a member?) publication Heart of the Beast on how to convert the standard C4 single pump setup.
H
I have rust eating through my main support structure and both fuel pumps are toast How do I get this article?? Could you please share it? That's the route I'm going to need to go.
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Old 07-03-2020   #28
Ccmano
 
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Default Re: Introduction: New member, new project, first ZR-1!

Quote:
Originally Posted by Alex0413 View Post
I have rust eating through my main support structure and both fuel pumps are toast How do I get this article?? Could you please share it? That's the route I'm going to need to go.
I just sent you a copy of the article via PM.
Registry members get the quarterly publication as part of membership. You also have access to all past publications and articles. Its one of the perks. The first year is $45. You can sign up here...
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"Keeping the Legend Alive" - The ZR-1 Net Registry facilitates enthusiasts to meet, socialize, learn, enjoy and preserve the heritage of the ZR-1 among the automotive community.

Membership in the ZR-1 Net Registry supports efforts to "Keep the Legend Alive" through the Internet forum; membership events; and our quarterly newsletter, "The Heart of the Beast." These mediums act as a support mechanism to help ZR-1 owners should they encounter any problems with their ZR-1s or have any questions. Membership in the ZR-1 Net Registry enables ZR-1 enthusiasts from all over the world to share facts and information, seek technical help, and collaborate about this truly World Class automobile; the most iconic Corvette GM has ever built. Also, as a prospective ZR-1 owner, the Registry offers help with any question and/or concern you may have about purchasing one of these special Corvettes. We can help make your big decision a little easier by providing details about the different years and options to help in selecting just the right ZR-1. The ZR-1 Net Registry will also be present at numerous Corvette shows and several race track events including the annual ZR-1 Gathering at the National Corvette Museum, now approaching its 16th anniversary.

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90'ZR-1 #1461 Red/Black
Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold
08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold
05 C6 Z51 Red/Black Sold
90'ZR-1 #1723 Black/Gray Sold but not forgotten
91' Z51 L98 White Vert. My First, you always remember your first. Sold.

Last edited by Ccmano; 07-03-2020 at 08:34 PM.
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Old 07-04-2020   #29
Alex0413
 
Join Date: Jun 2020
Location: Baton Rouge, LA
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Default Re: Introduction: New member, new project, first ZR-1!

The fuel system rebuild continues: After LOTS of carb cleaner and my handy little shop vac I managed to get the fuel tank nice and clean!

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Now, At first I thought my fuel sending unit was rusty but salvageable, but after closer inspection I determined it was toast It's split at the seam, pumps are both seized, and it's rusted away.

Fortunatley CCMANO shared the article on how to use the L98 sending unit with a Walbro 255, so that's the route i'm going for the fuel pump!

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Old 07-05-2020   #30
Alex0413
 
Join Date: Jun 2020
Location: Baton Rouge, LA
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Default Re: Introduction: New member, new project, first ZR-1!

Continuing full speed ahead on my ZR-1 resurrection! I got the plenum off pretty easily so now I had access to my injectors and ignition. I removed all 16 injectors so I could test, clean, and inspect them all. One thing I thought was interesting is that there were Ford FOTE-05A fuel injectors installed.. Is this normally used on the ZR-1? I noticed the resistance on them was much higher than the factory 8ohm, these were in the 40ohm range..

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Next up was to pull the coils and replace the coils and wires with OEM AC Delco parts. I did discover two of the coils were cracked, Could this of been the source of the miss in the engine before it was parked? possibly!

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