Nissan Repair: nissan hardbody 86 z24, nissan hardbody, viscosity oil


Question
I wanted to know how to get my motor from ticking. Its been doing it for since ive had it. I took it into the dealership to get the rocker arms adjusted it quieted up a litle but it still ticks, and makes a noise. And also have a hesitation sometimes when im driving it, and im trying to keep a constant speed, and it jerks and stuff when i barely press down the gas

Answer
Hi Chris,

20 year old trucks have issues. Have you done the basic tune up? You may need to rebuild the head. How many miles are on this?

I found this on this truck:

Classification:
EM95-01

Section:
Engine Mechanical

Reference:
Technical Bulletin NTB95-017

Date:
February 8, 1995

ENGINE OIL LEVEL AND GRADE

APPLIED VEHICLES:
All

SERVICE INFORMATION

The cause of some driveability incidents is incorrect oil level or viscosity. Whenever you evaluate a vehicle for a driveability problem, check the oil level first. (It is a good practice to check oil level on
every vehicle that you work on.)

Overfilling may cause engine vibration or valve train clatter on vehicles with hydraulic lash adjusters due to oil aeration when the crankshaft hits the oil. Using the wrong viscosity oil can cause rough or low idle resulting from improper operation of the hydraulic lash adjusters.

When you add or change the engine oil, follow the service manual recommendations regarding proper oil fill level. Do not overfill the crankcase. If you find a vehicle to be overfilled with oil, drain the excess oil and dispose of properly. Remember to wait ten (10) minutes after refilling before checking. This allows time for the oil to drain back to the pan.

Always use the proper viscosity oil specified by the service manual for the temperature range in your geographic area. The viscosity specifications ensure proper engine operation and best engine efficiency.