Joshs 92 4x4 Pickup

I have a 92 Toyota pickup 4x4 with a v6 3.0 engine. I recently put a new v6 3.0 in it. When it came to adjust the distributor the book says to to set it to 10 degrees before top dead center. My truck keeps back firing with it set at that.

Can someone help me please?

snobdds

There is two types of timing - Cam and ignition.

Cam timing is the relationship between the cams and crank. Your timing belt is what keeps that relationship in tact. Those should be set while the engine is a TDC and all the marks on the pulleys in the correct orientation.

Ignition timing can only be set after the cam timing is done. Once the timing belt is on and correct, the engine should be at TDC (0*). Then rotate the engine to 10* by hand on the crank to the correct mark on the oil pump. Then you can insert the dizzy and it should be within a degree of proper orientation. A timing light will get you to exact. I see so many people insert the dizzy at TDC and then try and turn it until it's at 10*. This makes the engine one or two gear teeth off and it will never run right.

Joshs 92 4x4 Pickup

Thanks I'm gonna try that today when I get off of work.

Joshs 92 4x4 Pickup

Thanx snobdds it worked. The timing feels perfect. I was reading something on the internet that if I set the timing to 12 degrees instead of 10 I would feel more power. Do you think that would be fine? I would really appreciate your input.

rworegon

What worked?

Joshs 92 4x4 Pickup

Snobdds help me with my timing. I've been doing it wrong. I set the crankshaft to zero then put the dizzy in set to number 1 spark plug. When I should have been setting the crankshaft to 10 degrees before top dead center then put the dizzy in with it set to number 1 spark plug.

snobdds

Yea, 12* should be fine. I am at 8,000 feet elevation and I am 3* advanced to deal with the elevation. Mine is a 22re, but the principles are the same.