Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
03-24-2022
|
|
Replies: 1
Views: 364
|
|
Forum: C4 ZR-1 Technical Postings
10-23-2021
|
|
Replies: 35
Views: 3,421
Re: Engine quits after 7 minutes
I wonder if there's any way to get the check valves unstuck.
I got two brand new OEM with bad valves that I couldn't return. Haven't had the heart to throw them away because I keep thinking that...
|
|
Forum: C4 ZR-1 Technical Postings
10-14-2021
|
|
Replies: 35
Views: 3,421
Re: Engine quits after 7 minutes
I had this same problem and it turned out to be the primary fuel pump. The pumps had been replaced before and I didn't like the looks of their work so I bought an entire new OEM assembly. Installed...
|
|
Forum: C4 ZR-1 Technical Postings
07-25-2021
|
|
Replies: 56
Views: 6,528
|
|
Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
07-01-2021
|
|
Replies: 11
Views: 1,289
|
|
Forum: C4 ZR-1 Technical Postings
03-31-2021
|
|
Replies: 56
Views: 6,528
Re: R-12 to R-134 conversion
I don't know about the high pressure switch but the low pressure switch is adjustable by turning a screw between the terminals.
The low pressure cut off is 2 lbs lower for R12 than R134a but the...
|
|
Forum: C4 ZR-1 Technical Postings
03-07-2021
|
|
Replies: 12
Views: 1,180
Re: No start
If you can't use a battery tender, you need to disconnect the battery when you plan to leave it parked for more than a few days.
|
|
Forum: C4 ZR-1 Technical Postings
12-20-2020
|
|
Replies: 26
Views: 2,504
Re: OBX Headers a heat concern?
Might want to do some research before wrapping those.
There seems to be a concern over issues with moisture being trapped under the wrap which causes corrosion and rust.
OBX headers are...
|
|
Forum: C4 ZR-1 Technical Postings
09-21-2020
|
|
Replies: 24
Views: 2,198
Re: O2 sensor passenger side pita
You cannot seal the end of the OX sensor where the wires enter the unit, they must stay open to allow the sensor to breathe.
The wires in the Weatherpak connectors on the other hand are...
|
|
Forum: C4 ZR-1 Technical Postings
09-21-2020
|
|
Replies: 24
Views: 2,198
Re: O2 sensor passenger side pita
I believe the two white wires are the element heater circuit and are interchangeable but I tried to put them in the connector in the same slot anyway. If you can't see the connector hidden by the...
|
|
Forum: C4 ZR-1 Technical Postings
09-20-2020
|
|
Replies: 24
Views: 2,198
Re: O2 sensor passenger side pita
I cut the wires at the sensor and installed a new Weatherpak connector. Plugged in the new sensor and looped the wires up and out of the way and was done.
Later, when i installed my OBX headers,...
|
|
Forum: C4 ZR-1 Technical Postings
07-03-2020
|
|
Replies: 56
Views: 6,528
Re: R-12 to R-134 conversion
The low pressure switch is the same but there is a small screw between the wire terminals that is turned to adjust the low pressure cutoff.
IIRC the low pressure cutoff is 24psi for R-134a and...
|
|
Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
02-16-2020
|
|
Replies: 4
Views: 578
|
|
Forum: C4 ZR-1 General Postings
10-30-2019
|
|
Replies: 11
Views: 1,366
Re: There's a special place in hell
I use to do that as well but then it was an irresistible target for all the neighborhood birds.
I once parked under a tree, forgetting that it was Starling migration season. Must have been over...
|
|
Forum: Southeast Region
10-27-2019
|
|
Replies: 12
Views: 2,348
|
|
Forum: C4 ZR-1 General Postings
10-21-2019
|
|
Replies: 11
Views: 1,366
Re: There's a special place in hell
I parked at the very end of a row in Home Depot once. Lot was less than half full.
When I came out, a junked up flatbed was parked next to me and some SOB had taken a piss between the two.
...
|
|
Forum: C4 ZR-1 Technical Postings
05-20-2019
|
|
Replies: 6
Views: 588
Re: Product for dissolving gum in fuel tank
Ethanol caused problems similar to this when it was first introduced.
Older fuel storage tanks had a layer of sludge built up from years of leaded fuel storage. Unleaded fuel didn't seem to...
|
|
Forum: C4 ZR-1 Technical Postings
03-27-2019
|
|
Replies: 20
Views: 1,709
|
|
Forum: C4 ZR-1 Technical Postings
03-27-2019
|
|
Replies: 20
Views: 1,709
Re: AC issue after 134 conversion/repair
Low pressure switches are adjustable. A problem for R12 cars is that now, when you buy a replacement LPS, it is set for R134 and cuts off too soon. That was the problem I encountered but it went away...
|
|
Forum: C4 ZR-1 Technical Postings
01-02-2019
|
|
Replies: 19
Views: 2,138
Re: 90 Z cranks but will not start
That's great news.
The ZR1 dual pump setup is precarious.
When both pumps are running, and all in-tank hoses are tight, it works great. If a hose clamp comes loose, part of the pumped fuel...
|
|
Forum: C4 ZR-1 Technical Postings
12-23-2018
|
|
Replies: 16
Views: 1,957
Re: VATS Question
I must say that if Mr. Dynomite is the least bit interested in my opinion I must reply. But don't say I didn't warn you.
There are two electrical circuits in the starter system. The start...
|
|
Forum: C4 ZR-1 Technical Postings
12-22-2018
|
|
Replies: 16
Views: 1,957
Re: VATS Question
Sooner or later all Z owners have to deal with the low voltage issue in the starter circuit.
Installation of the bypass relay will eliminate that.
I wrote a long dissertation as to why but...
|
|
Forum: C4 ZR-1 Technical Postings
12-22-2018
|
|
Replies: 16
Views: 1,957
Re: VATS Question
In the first post you said " I bought a bypass for the ignition a while back and installed it."
What did you buy?
|
|
Forum: C4 ZR-1 Technical Postings
12-21-2018
|
|
Replies: 16
Views: 1,957
Re: VATS Question
I'm right down I-65 from you in North Shelby County. If you are going to throw it out, let me know and I will come haul it off for you.
Seriously though, I installed the bypass relay on mine and...
|
|
Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
12-15-2018
|
|
Replies: 26
Views: 1,260
|
