Forums/Z31P/z31-repairs-forums engine-mechanical
Engine mechanical — part of Z31 Repairs archive (300 threads).
Threads[edit]
- (Urgent help please) Engine braking is killing engine
- 10 year timing belt change out advise
- 1984 Datsun Nissan zx turbo piston damage
- 1985 Z31 NA - High Idle
- 1987 ignition timing problems
- 21V/V52/85E Heads vs OWO
- 300zx smoked out
- 4th Time my Z has caught fire (injectors again)
- 84T no fuel pressure unless regulator return line clamped off
- 84 Turbo High Idle
- 85NA Auto in limp home mode
- 85T Arbitrarily Lean
- 85T Bad Hesitation/Hiccup/Misfire
- 85 Turbo not building boost and too much fuel?
- 86 NA won't idle
- 86 n/a Wont Stay Running For More Than One Second
- 86 zx crank but no start
- 87 NA2T - Starting issues still
- 87 T is acting up. It's missing and surging-running terrible
- 87 Z31/VG33 Race Car Advice
- 87 n/a limp mode?
- 87 na motor into 86 turbo body with the turbo bits transferred?
- 88 turbo no power, HG?
- 89 N/A No start Issue
- AC/ cold to hot driving.
- AC Blow from the Dash Only, plz help
- ATF for 84 ae z
- A little help on possible fuel issue, sometimes it will not start until much later.
- Advice
- Aftermarket titania sensors
- Alternator top bolt snapped inside housing.
- Am I running rich?
- An Introduction of sorts…
- Another coolant leak…
- At What Point is An I/C Necessary?
- Belt Noise?
- Bleeding clutch slave cylinder
- Boost leak checking and smoke machines.
- Boost problems
- Broken Ring land at 20psi
- Bronze or Cast Iron Valve Guides?
- CHTS
- CM Downpipe, hangin low, can it be raised?
- C L Motorsports???
- Cam Alignment?
- Cam Gear moved during belt change
- Can't figure out what sensor is on manual tranny
- Car dies on my road, idled low, died....
- Car stalling any advice appreciated
- Car won't start!
- Car wont do anything.
- Car wont start After short (Fire)
- Chasing higher compression numbers.
- Chts and injector starting problems.
- Cleaning Parts?
- Cllutch hose replacement
- Cluster Illumination- Blown Lamps
- Code 11 cas
- Cold start issues
- Confusing timing situation
- Coolant dye in oil.
- Coolant hose diagram/intake manifold
- Cracked Crank Shaft
- Crank case blow by?
- Crank pully removal 87 ZX NT
- Cranks but wont start…
- Crankshaft Pulley removal (** PICTURES POST 6**)
- Cruise control not working? Missing engine components?
- Custom upper intake manifold?
- D.U.I. distributor option for VG30E
- Dash lights
- Defroster problem
- Distributor Crank Angle Sensor (CAS) Removal
- Distributor Wire
- E.G.R. Valve question.
- EFI relay, Uphold Relay, and Mystery relay
- Electrical Gremlins - Injectors Edition
- Electrical motor noise with headlights
- Engine Coolant Hose
- Engine Stumbles
- Engine cranks but won't start, completely frustrated.
- Engine revs up on its own, suffocated when giving gas
- Engine seems to miss only at 2k and below after the car has been warmed and restarted
- Engine throwing out smoke and runs rough.
- Evap Diagram
- Exhaust Manifold Studs Screwed Up
- Exhaust smells of heavy gas.....
- Expansion valve actually bad?
- Extreme Smoking
- Flywheel gear ring problem
- Fuel Pump Cut Out - Top Access
- Fuel pressure starting problem?
- Fuel vent clogged??
- GLL digital fuel gauge number doesn't show when on empty
- Gap between oil pan and pickup tube?
- Gas tank pressure
- HELP !! Fuel/boost cut
- HKS Intercooler Setup
- HS parking lot teardown
- Harmonic Balancer Crank Pulley Gone Bad ? vibration at 3K
- Head Gasket
- Head Gasket Brands
- Head Gasket or piston rings or what do you think?
- Head work: What should I expect to pay?
- Heater core leak
- Help!
- Help! Car has power, won't crank
- Help! How to reas engine codes
- Holy Crap! No Oil Pressure! Engine Rubbing!
- Hood struts
- How-To: Ball Joint Removal in car.
- How to Tell an Exhaust or Intake Valve Stem Oil Seal?
- How to install a new power antenna mast
- Huge Ticking when Hot idle
- I dont even know… Bad ECU?
- I have tail lights but no Brake lights. Help?????
- I think I made an OOPs
- Idle?
- Idle Adjustment 89 300zxt
- Ignition timing jumping around
- Incorrect Fuel Pressure
- Injector Leak AGAIN (URGENT)
- Intake manifold leak - how common are they?
- Interesting no start issue
- Internals swapping
- JDM Timing belt part number different
- Just Bought a '84 Z31, Fuel pressure regulator bad?
- Just bought a z31 - Blown Head Gasket
- Knock or engine noise?
- Laser cutting some AAC gaskets
- Leak underneath passenger side headlight?
- Lets try again… hard to diagnose misfire/hard start issue on an 85T
- Lifter Noise with Rotella
- Lifter chatter? With video
- Light Switch Burning up
- Little to no oil pressure at idle
- Low oil pressure at warm idle
- MAF hot-start question
- Main Bearing Inspection/Install
- Major click to what seems to be coming from heads
- Misfire and hesitation at low throttle
- Misfire or something after warm up
- Mystery hose
- NA2T idle air control wiring questions
- Name this part.
- Need a mechanic in the MD, VA, DC or PA area
- Need alternator solutions
- Need help with TPS harness
- New member losing his mind with misfire going uphill
- New to the Z31… first problem
- No fire?? Wont start
- No oil pressure after vg33 swap
- No power in low rpm range
- No shift interlock?
- No spark no start
- Noob Accident
- Oil Leak from Drain Plug After Switching to Full Synthetic
- Okay so this might seem crazy but… VG30ETDI Direct diesel injection.......
- One last nagging question before i button this fucker up…again
- Open vs closed loop
- Oring spring valves
- Passenger side turbo header
- Please for the love of god tell me what these hoses are.
- Plug gap for 3.3 NA2T recommendations
- Possible Debris Oil Pump
- Power Seat stuck all the way back
- Power Seat will not move forward
- Pulled my Security Fuse to stop parasitic drain, is this ok?
- Pulling engine out
- Question
- Questions with pictures
- Re-shelling an 84 model into an 89 shell
- Reading Crank and Rod Bearings
- Rear Brake Line tubing size on Lower Control Arms
- Rear Passenger Side shock squeaking/rubbing noise
- Release bearing is in the way of the cutch plate
- Reringing a vg30
- Rich exhaust smell
- Road racing VG33et questions
- Rocker Stud
- Rocker arms
- Rod Knock???
- Rough idle
- Running Rich After Rebuild
- Running lean?
- Rust around windshield
- Rust in hatch area
- Screws that go into the plenum?
- Setting timing belt tension
- Shocks
- Slight Hesitation
- Smoke pouring out exhaust
- Snapped IACV bolt = vacuum leak
- Spark Plug Wire Set 8.5mm
- Speedometer cable question!?
- Starter cranks real slow? Please Help
- Steering Rack Question
- Strange Drivetrain Vibration
- Strange Idle on Cold Start
- Surging.
- T-Belt Too Tight (T-Belt Whine)
- TDC and possible distributor problems
- Tearing Motors Apart Let me know
- Thank You Z31 Performance
- The Advanced Complicated Mysterious Engine Misfire Story
- Thermostat
- Thermostat housing pin hole
- Thoughts on putting a Z31 on a rotisserie
- Three dead fuel pressure regulators means a bigger issue?
- Throttle issue at certain temperature
- Timing belt help
- Timing belt near hot weld…
- Timing belt off by half a tooth
- Timing belt off by half a tooth (duplicate 1)
- Timing belt troubles
- Timing belt wobble
- Timing sprocket stuck
- Tonneau Cover Vinyl Repair
- Top Timing Belt Cover-removal questions
- Tranny or Clutch
- Tuning
- Turbo heat shields / master cylinder shield
- Turbo turbine shaft replacemnt
- Typical Blower Problem in Z31's?
- Ummm what part is this.... I forgot it's name
- Urgent: 88 Turbo Mani on 87 Turbo Car
- VG30DE J30 oil pan on vg30et?
- VG30ET swap
- Valve cover gasket
- Washed engine bay..wont start
- Water cock
- Weather stripping, NEED YOUR HELP!, send your spare parts in
- Weird Starting Problem (84 Turbo)
- Whacked Out Gas Gauge
- What is this unplugged part?
- What size bolt needed to put engine on Engine Stand?
- Whats the matter with my Turbo
- When to change TIming Belt based on Age?
- Will the vg30dett oil pan fit the vg30et?
- Would bad EGR or its solenoid cause difficult start?
- Z31 Crankshaft
- Z31 Engine Rebuild
- Z31 chts
- Z31 cranking but not starting
- Z31t Engine Oil Cooler Delete
- air mix box spring?
- all show and no go..
- all the parts no one talks about
- assembling the cylinder head help with lifters
- auto 86 na rough idle in closed loop need help asap.
- black stuff coming out of exhaust
- breakdown
- car has no injector paulse
- chts harness
- code 21 issues
- dip stick plug / changing location from front right to back left
- distributor question
- dropping the gas tank…need help
- engine oil temperature
- engine rebuild
- engine sounds bad…
- fuel filter replacement
- fuel level sending unit
- fuel pump o ring question.
- good oil pressure, oil light on?
- half shaft removal
- headlight motors?
- heating issues
- hesitation problem on acceleration
- high idle will not go down! UGH!
- hotter coolant temp while driving
- ignition module transistor
- intermitant starting problem on '87ZXT
- intermittent hestitation issue on boost / running rich
- low fuel pressure after blown head gasket
- manifold studs.
- misfire under boost
- missing? hestiation.
- na2t ran fine b4 conversion, now running so rich gas and white smoke out exhaust
- need help
- need to turn up idle.
- need used engine for 87-89 300ZX or Maxima
- no spark
- no sparky
- o2 sensor
- over heating in 5th..like, wtf
- removing the ignition switch?
- replacing timing belt procedure question!
- reusing newley installed exhuast gasket
- running bad - emergency HELP!!!!
- smoke screen
- spark plug broke
- squeaking wheel when coasting **FIXED
- steering problem
- temp creeps on interstate..
- to confirm, issues with clutch
- tokico
- vg30et will not start
- would a 86 vg30 fit a 87
- z32 bottom end