The Nissan Club banner

1 - 4 of 4 Posts

·
Official Troll
Joined
·
7,780 Posts
Discussion Starter #1
Can someone tell me what are timing marks? What are they used for? Is it something for "lining up" the belt? Can fuel economy be affected if the belt slips?
 

·
Banned
Joined
·
117 Posts
Timing marks are located on major parts of the engine, such as crankshaft pulley, or distributor, to ensure proper installation and adjustment. When the engine in right timing, then spark ignites the fuel at the right time, when piston is at TopDeadCenter, if t iming is disturbed, there will be many problems, overheating, no power, no running, detonation and so forth... Gas milage could sometimes be 5 miles per gallon.
 

·
Erect Member
Joined
·
18,126 Posts
the timing marks that youll need for ignition timing are on the crankshaft pulley. they tell you what position the piston is in the cylinder, ie; 5 degrees before top dead center(or tdc), tdc, 5degrees after tdc and so on, each tick on the pulley means a different number. there are also marks on the cam gears, on the chain(silver tabs) and on the crankshaft pulley where the chain meets it. we have no belt for timing as im sure youve heard, its all chain. if it slips, you have more to worry about than bad gas mileage. im having the problem right now with the cam gears not being properly timed. its in a thread by me in this forum.
 

·
Import Tech.
Joined
·
4,670 Posts
And the marks on the UA Pulleys are off !! You have to remark them using the old pulley ... Put old pulley back on , put at 0 TDC , put new pulley on ( with out turning the crank at all !!!, make a new 0 TDC mark ..... If you set your timing like the book says with the UA pulley , your timing will be way off !!
 
1 - 4 of 4 Posts
Top