no when u r travin at speed than take foot of acc pedal it just keeps goin around30-35no when u r travin at speed than take foot of acc pedal it just keeps goin around30-35
a little high idle but when i wld put it in par after sound nrml it is a highmile vehica little high idle but when i wld put it in par after sound nrml it is a highmile vehic
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Jul 1, 2009 - 14 posts - ‎5 authors
1986 Nissan 720 King Cab with 2.4 Naps Z engine (Carb based) ... Just yesterday it made a real weird loud panging noise (Kind of ... If you dont surface the head it will usually form better to the bad block deck giving you as much as another 100k !!!!!!!! before it ... Also the z24 HATES head gasket coating.
Nov 17, 2009 - 14 posts - ‎6 authors
I am new to this forum along with Datsun/Nissan trucks. ... doing a lot of reading and trying to become more familiar with the Nissan 720 /z24 engine. ... also if the mixture is out of adjustment it can cause the same symtoms also.the ... Listen near the back of the carb and you should hear a light clicking sound.
Guys he has a Z24, Not KA24, Z24 for one, Is carbed and has older lifters and valves. They need to be tuned to spec within a certain specific limit and the cams must be rotated in certain positions when doing different valves, etc... Shouldnt take very long normally and its not a hard process but if you have a tick, you really should get it checked out. Btw, the Z24 engine's idle isnt controlled by ecu at all or else the carb wouldnt need an idle adjustment screw.
first i would look for a vacuum leaks get it as close to idle as you can when cold and spray carb cleaner around and also check to see if the egr valve is stuck open this will act as a vacuum leak but not detect as one spraying carb cleaner around carb cleaner with change the engine speed near a vacuum leak
truck normally has a vacuum hose routing diagram on under side of hood on drivers side.also look for metal tag on center of engine compartment fire wall which gives you a motor id @ and trk model # you can then know what engine vacuum diagram you need.i have a diagram for an 86 720 series Z24 carb engine that can be copied off of truck..chris
Its vacuum hose related. Mine does the same thing. Am looking for a vacuum hose diagram so I can take off the carb..... Check your vacuum hoses for leaks by spraying something like WD-40 on them and look for bubbles.
my truck was doing the same thing, i tried to adjust the idle screw and replace the ignition system but it didnt help. What i did was replace the carb with a webber and the problem was solved. I'm not saying to buy a webber but you might just need to rebuild your carb or something similar
erratic idling
no when u r travin at speed than take foot of acc pedal it just keeps goin around30-35
a little high idle but when i wld put it in par after sound nrml it is a highmile vehic
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