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How to set timing on a Toyota 3.0 engine?

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Wiki User
2011-09-13 05:46:21

Set it with the timing light

I recently had to replace my water pump 1991 Toyota pickup v-6

3.0 3vze engine more than i bargained for!!!

everything was going smooth....until I moved my cam!!! woops

what you have to do is make sure both cams are pointed at the

marks/notches on the back timing cover...the left one might be

pointed a little more to the left of the notch, and the right one

may be pointed a little more to the right. the crankshaft has to be

pointed at 0 degrees... the only way to be sure this is done proper

is to turn the engine twice... use a socket attached to the

crankshaft and turn it past the 0 degree mark once, until it comes

back again (the second time) both marks on the cams need to match

up exactly the way they started... next set a inductive timing

light to number one cylinder, and gap the diagnostic terminal under

the hood (use a paper clip and connect the e terminal to the te

terminal (check manual for this, some years you must detach a

vaccum tube!!!) after this start the truck, put the timing light on

the crankshaft, and measure the timing... timing should be 10

degrees BEFORE top dead center (0 degrees) this is at idle (~700)

if the engine is turning faster than this, the timing will be

different.. best of luck and make sure the terminals are jumped!!

otherwise the engine will try and compensate for the


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