Start issue
#2
Tech Contributor
Are you saying the starter will not turn over?
If that is the case........
Recondition the starter Solenoid points
Starter, Starter Relay, Wiring Harness, Battery, and Plugs Tricks
Reconditioning the Starter Solenoid is a must in all my Top End Restorations as well as installing the Starter Relay
If that is the case........
Recondition the starter Solenoid points
Starter, Starter Relay, Wiring Harness, Battery, and Plugs Tricks
Reconditioning the Starter Solenoid is a must in all my Top End Restorations as well as installing the Starter Relay
Last edited by Dynomite; 02-05-2018 at 10:16 AM.
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alexrg12 (02-01-2018)
#3
Are you saying the starter will not turn over?
If that is the case........
Recondition the starter Solenoid points
Starter, Starter Relay, Wiring Harness, Battery, and Plugs Tricks
If that is the case........
Recondition the starter Solenoid points
Starter, Starter Relay, Wiring Harness, Battery, and Plugs Tricks
#4
Drifting
ZR-1 has 2 fuel pumps, Primary & Secondary. Both pumps run on cold start until coolant temp reaches 167deg F or thereabouts (as best I can recall at the moment). Then the Secondary pump shuts down & Primary Pump supplies fuel until Secondary Port Throttle is activated under Full power mode.
With a bad primary Pump, once engine temps cool down, engine will start again but shuts down when engine coolant warms up.
There is a fuel pump test procedure in at least a dozen places here on the forum. Do a search to view.
Last edited by A26B; 02-01-2018 at 02:06 PM.
#5
If runs for awhile means "after a cold start, runs for 5~10 minutes & dies", then it's probably failure of the primary fuel pump.
ZR-1 has 2 fuel pumps, Primary & Secondary. Both pumps run on cold start until coolant temp reaches 167deg F or thereabouts (as best I can recall at the moment). Then the Secondary pump shuts down & Primary Pump supplies fuel until Secondary Port Throttle is activated under Full power mode.
With a bad primary Pump, once engine temps cool down, engine will start again but shuts down when engine coolant warms up.
There is a fuel pump test procedure in at least a dozen places here on the forum. Do a search to view.
ZR-1 has 2 fuel pumps, Primary & Secondary. Both pumps run on cold start until coolant temp reaches 167deg F or thereabouts (as best I can recall at the moment). Then the Secondary pump shuts down & Primary Pump supplies fuel until Secondary Port Throttle is activated under Full power mode.
With a bad primary Pump, once engine temps cool down, engine will start again but shuts down when engine coolant warms up.
There is a fuel pump test procedure in at least a dozen places here on the forum. Do a search to view.
#6
Team Owner
Pro Mechanic
Dynomite has got you covered on this one. Follow his advice.
#7
Tech Contributor
I will add this
Next time park ZR-1 on a flat surface and you can easily have someone sit in drivers seat with ignition on and in second gear with clutch depressed. You push the Z a bit (easy on flat surface) and the "someone" pops the clutch and you are started
Reconditioning the Starter Solenoid is a must in all my Top End Restorations as well as installing the Starter Relay
Make sure the "someone" is a friend because when the ZR-1 is started, the "someone" may want to take a test drive
Next time park ZR-1 on a flat surface and you can easily have someone sit in drivers seat with ignition on and in second gear with clutch depressed. You push the Z a bit (easy on flat surface) and the "someone" pops the clutch and you are started
Reconditioning the Starter Solenoid is a must in all my Top End Restorations as well as installing the Starter Relay
Make sure the "someone" is a friend because when the ZR-1 is started, the "someone" may want to take a test drive
Last edited by Dynomite; 02-05-2018 at 10:15 AM.
#8
Intermediate
Similar to what happened to me last year with my starter. Same symptoms. I had a small oil leak under the plenum and it found its way to my starter. The mechanic explained to me that when cold the starter is dry until warmed up.
Had to replace the starter. Not an easy job by any means. But what's easy about our ZR1!
Had to replace the starter. Not an easy job by any means. But what's easy about our ZR1!
#9
Tech Contributor
Piece of Cake
Last edited by Dynomite; 02-11-2018 at 06:16 PM.