Forum: C4 NCRS for ZR-1s
1 Week Ago
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Replies: 4
Views: 1,702
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Forum: C4 ZR-1 Technical Postings
07-20-2024
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Replies: 5
Views: 1,301
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Forum: C4 ZR-1 Technical Postings
07-19-2024
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Replies: 8
Views: 2,171
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Forum: C4 ZR-1 Technical Postings
07-19-2024
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Replies: 8
Views: 2,171
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Forum: C4 ZR-1 Technical Postings
07-19-2024
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Replies: 11
Views: 4,429
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Forum: C4 ZR-1 Technical Postings
07-19-2024
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Replies: 4
Views: 1,120
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Forum: C4 ZR-1 Technical Postings
07-19-2024
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Replies: 10
Views: 2,194
Re: 1991 ZR1 - Rack and pinion assembly
Trevor,
Most likely the rack is fine and the play is within the inner tie rod that threads onto the rack. Rockauto DORMAN IS200PR.
Rear wheel bearings usually make noise but not uncommon for...
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Forum: C4 ZR-1 Technical Postings
07-19-2024
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Replies: 17
Views: 4,681
Re: Question on Engine Temp
Tape some thick paper to end of something and slide it down there slowly. Like clothes pinning a baseball card to make noise on bicycle spokes when I was a kid. Or was I the only one that did that?
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Forum: C4 ZR-1 Technical Postings
07-19-2024
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Replies: 8
Views: 2,171
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
06-22-2024
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Replies: 6
Views: 3,421
Re: WTB: Secondary Port Solenoid
Standard Motor Products VS124
I have experienced that frustration. I went to OReileys with my vacuum tester in hand. I tested them on the counter until one held vacuum. Also RTV the connector.
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Forum: C4 ZR-1 Technical Postings
05-29-2024
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Replies: 39
Views: 12,378
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Forum: C4 ZR-1 Technical Postings
05-15-2024
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Replies: 11
Views: 6,832
Re: 1990 AC question
There are kits out there.
New compressor
New dryer
New expansion valve
New Schroeder valves and O rings throughout.
All lines and condensor and evaporator have to be thoroughly flushed because...
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Forum: C4 ZR-1 Technical Postings
05-15-2024
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Replies: 10
Views: 5,440
Re: Radio will not work
When these 30 year plus components fail I prefer to do this,
Remove head unit in dash
Remove CCM inside dash under glove box, bad PIA
Remove all 4 speaker units
Send them all to the nearest...
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Forum: C4 ZR-1 Technical Postings
05-14-2024
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Replies: 10
Views: 7,061
Re: High idle
Quote from service manual
Incorrect minimum idle speed may be caused by foreign material accumulation in the throttle, bore caulking, on the throttle valve, or on the throttle shaft.
Also a...
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Forum: C4 ZR-1 Technical Postings
05-13-2024
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Replies: 10
Views: 5,518
Re: Transmission or clutch ?groan? sound?
It was a squealing groan with clutch suppressed when cold. Figured it was throw out bearing or flywheel/ main shaft bushing. Most likely the latter. Hasn?t done it for 5 years. Returned from...
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Forum: C4 ZR-1 General Postings
05-13-2024
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Replies: 2
Views: 1,972
Re: MR10 and Gathering pics
1 and 2 at Charlotte Motor Speedway. Note rain.
3 and 4 at cabin of Jay Zeigler who purchase an un-Z with non operational secondaries. Donna is now the REV limiter!
5 is a very small glimpse of...
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Forum: C4 ZR-1 General Postings
05-13-2024
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Replies: 2
Views: 1,972
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Forum: C4 ZR-1 Technical Postings
05-13-2024
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Replies: 10
Views: 5,518
Re: Transmission or clutch ?groan? sound?
77 k miles. Original clutch. I had those noises a while back but went away. Don?t fix what is not yet really broke. Moana and groans are every time I try to get out of my Z!
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Forum: C4 ZR-1 Technical Postings
05-13-2024
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Replies: 7
Views: 4,941
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Forum: C4 ZR-1 Technical Postings
05-13-2024
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Replies: 10
Views: 7,061
Re: High idle
Buy throttle body cleaner spray. Remove accordion. Spray clean all well. Especially the little plate. Remove aluminum cover over cable. Spray all the mechanism with spray. First idea is grime...
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Forum: C4 ZR-1 Technical Postings
04-27-2024
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Replies: 5
Views: 3,923
Re: Help with no start PLEASE.
See the STICKIES about no start and read up. Get a fuel pressure gauge to see what you have. Both fuel pumps run for a bit to start the engine. Then the secondary pump goes off. If primary pump is...
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Forum: C4 ZR-1 Technical Postings
04-19-2024
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Replies: 7
Views: 3,788
Re: Horn won't blow
First check you have power at connector. If so scrape and clean the round swaged electric connection on the horn. Solder between the two. That press connection has eroded and lost continuity. I have...
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Forum: C4 ZR-1 Technical Postings
04-14-2024
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Replies: 5
Views: 3,923
Re: Help with no start PLEASE.
Use a mirror to confirm sensor is against the block
Confirm sensor is completely snapped into connector
Confirm fuel pressure is to spec. Likely your primary fuel pump went bad.
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Forum: C4 ZR-1 Technical Postings
04-03-2024
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Replies: 7
Views: 1,612
Re: Fuel Pressure Problem
And one ft of hose can set you back 30 bucks. It is available on Amazon. Get high pressure clamps too. Not the low pressure screw on the side type.
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Forum: C4 ZR-1 General Postings
04-02-2024
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Replies: 5
Views: 1,905
FL to MR10 caravan invite
Three of us are meeting in Jacksonville, FL the morning of Sunday May 5 to caravan to MR10. If anyone is interested let me know for details. The route is JAX FL to Augusta GA, take Moonshiner 28 to...
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