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CamoKing

Member Since 12 Sep 2017
Offline Last Active Sep 30 2017 03:02 PM
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Posts I've Made

In Topic: New spark plugs...clouds of white smoke=failed tune-up misadventure!?...

16 September 2017 - 11:52 AM

I can't post images.  Tell me what I'm not doing.


In Topic: New spark plugs...clouds of white smoke=failed tune-up misadventure!?...

16 September 2017 - 11:51 AM

Some images of what

 

This 720 King has a Z22 177664 engine (It does not have a roof!).  Odometer @ 88,883.  I started it up on 3rd try.  Ran it to normal op-temp in idle for about 15 minutes with the radiator cap off to see if there were bubbles or anything.  I couldn't even tell if/when the thermostat opened.  I could see the coolant get hot and vaporize a bit, but no flow, no bubbles?  Yet, tailpipe was putting out white smoke (image).   Is the thermostat stuck?  Upper hose is warm....Seems like the temp gauge would be rising rapidly if the thermostat was not opening??... Still not certain about what is causing the white smoke.   Has to be coolant leak, right?  Maybe I'm witnessing the 'beginnings' of a total gasket failure.  I do not think I should take this vehicle  fishing..

2nd question:  If I do a basic compression check, I assume I put the gauge on the Intake Spark holes?

 


In Topic: New spark plugs...clouds of white smoke=failed tune-up misadventure!?...

16 September 2017 - 11:07 AM

This 720 King has a Z22 177664 engine (It does not have a roof!).  Odometer @ 88,883.  I started it up on 3rd try.  Ran it to normal op-temp in idle for about 15 minutes with the radiator cap off to see if there were bubbles or anything.  I couldn't even tell if/when the thermostat opened.  I could see the coolant get hot and vaporize a bit, but no flow, no bubbles?  Yet, tailpipe was putting out white smoke (image).   Is the thermostat stuck?  Upper hose is warm....Seems like the temp gauge would be rising rapidly if the thermostat was not opening??... Still not certain about what is causing the white smoke.   Has to be coolant leak, right?  Maybe I'm witnessing the 'beginnings' of a total gasket failure.  I do not think I should take this vehicle  fishing..

2nd question:  If I do a basic compression check, I assume I put the gauge on the Intake Spark holes?

 


In Topic: New spark plugs...clouds of white smoke=failed tune-up misadventure!?...

16 September 2017 - 10:40 AM

Better identify what engine you have. Look between the two pair of exhaust manifolds below the #2 and #3 spark plugs, just below the head on the block there is a flat boss with the engine size stamped on it.

 

1985NissanPickup012.jpg

 

The Z24 is prone to blowing head gaskets every 100K. If the engine was swapped this is likely what you have.

 

 

Normally changing spark plugs will not cause water to steam out the back. The cylinder that had a loose porcelain insulator and also a reduced plug gap is indicative of damage or a foreign object getting in and bouncing around damaging the plugs.

 

 

 The engine was spewing 'noticeable exhaust and fuel vapors'. Putting in new plugs just pushed any damage or pre existing problem 'over the edge'.

 

When you pull the head take a good look at the piston tops. You may see marks from a foreign object or a piece missing.


In Topic: New spark plugs...clouds of white smoke=failed tune-up misadventure!?...

15 September 2017 - 09:43 PM

Copy that, DatzenMike!  I was planning to drive this rig 300+ miles to Texas next week.  Maybe it is fortunate that I pushed it over the edge in my driveway vs. on I40!