Forum: C4 ZR-1 Technical Postings
06-27-2024
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Replies: 4
Views: 3,148
Re: Replacing main bearings
You can`t change the main bearings if the engine is installed into the car. Unfortunately the engine has to be disassembled on a stand until the last screw. The crankshaft must taken out to replace...
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Forum: C4 ZR-1 Technical Postings
04-11-2024
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Replies: 5
Views: 2,756
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Forum: C4 ZR-1 Technical Postings
04-11-2024
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Replies: 5
Views: 2,756
Re: Help with FX3 actuators/faults
Hi Charlie, the rear actuator you purchased from me some days ago works fine...I checked this before selling to you. And as I explained to you: the plastic gears in the head of the actuator may crack...
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Forum: C4 ZR-1 Technical Postings
01-19-2024
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Replies: 15
Views: 5,469
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Forum: C4 ZR-1 Technical Postings
01-19-2024
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Replies: 15
Views: 5,469
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Forum: C4 ZR-1 Technical Postings
01-17-2024
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Replies: 4
Views: 2,690
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Forum: C4 ZR-1 General Postings
10-06-2023
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Replies: 44
Views: 14,565
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Forum: C4 ZR-1 Technical Postings
09-19-2023
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Replies: 9
Views: 2,247
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Forum: C4 ZR-1 Technical Postings
08-28-2023
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Replies: 6
Views: 1,830
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Forum: C4 ZR-1 Technical Postings
08-02-2023
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Replies: 5
Views: 2,351
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Forum: C4 ZR-1 General Postings
07-17-2023
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Replies: 5
Views: 1,107
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Forum: C4 ZR-1 Technical Postings
06-20-2023
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Replies: 5
Views: 1,984
Re: Idle transition issues
Measure out Matthias: the TPS signal must be at 0.50 volts at idle with the oem software on the memcal? Haibeck recommends 0.53 V with his chips. Other voltages can cause your problem.
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
06-16-2023
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Replies: 5
Views: 1,411
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
06-16-2023
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Replies: 5
Views: 1,411
Re: WtB need a 1990 ecm
Send your defective ecm to Marc Haibeck for repair service?would be the best choice for you. Did ist for a customer in the past and it still runs with any issues.
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Forum: C4 ZR-1 General Postings
04-04-2023
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Replies: 14
Views: 2,130
Re: Wipers FYI
I allways recommend the ANCO 14-series conventional windshield wiper blades (metal frame) for the C4... 19" or 20" long. They are very slim and fit perfect under the hood.
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Forum: C4 ZR-1 Technical Postings
02-22-2023
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Replies: 7
Views: 2,028
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Forum: C4 ZR-1 General Postings
10-14-2022
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Replies: 21
Views: 2,397
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Forum: C4 ZR-1 General Postings
10-12-2022
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Replies: 21
Views: 2,397
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
09-23-2022
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Replies: 8
Views: 1,933
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Forum: C4 ZR-1 General Postings
04-20-2022
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Replies: 34
Views: 3,658
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Forum: C4 ZR-1 General Postings
04-20-2022
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Replies: 16
Views: 1,749
Re: Throwout Bearing
Nearly impossible, the TOB are good for over 100000 mls. People often hear some noise from the bearing area...but in 99% it comes from the pilot bearing in the cranksaft (lost of grease).
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Forum: C4 ZR-1 General Postings
04-20-2022
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Replies: 34
Views: 3,658
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Forum: C4 ZR-1 General Postings
04-07-2022
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Replies: 91
Views: 8,706
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Forum: C4 ZR-1 Technical Postings
12-14-2021
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Replies: 2
Views: 1,292
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Forum: C4 ZR-1 Technical Postings
11-19-2021
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Replies: 2
Views: 1,145
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