macneill5

I am in the middle of attempting to get my 4runner timed and working properly. I have set the crankshaft to TDC, and set the top pulleys to the straight up. And when I start the engine up, it idles rough at around 500 rpms. Everything else is working, no leaks, spark plugs are new, spark wires are working properly.

When I line the bottom pulley on "0" my timing gun shows that it is past the 15. So I tried to set the bottom crank the distance it was off on the opposite side of "0". Stillbiant working... I am stumped, if you have experience doing timing please help.

macneill5

Best case scenario I would like to be able to replace all the parts involved, but I don't have the money to buy any unnecessary parts.. Thanks for the help..

justin_4runner

i would look over the manual real quick and also recheck that the dist is right,

http://www.ncttora.com/fsm/1990-1995...e/timingbe.pdf

macneill5

Thanks, I will take a look at it.

I haven't bridged the Te1 and e1 connectors, will that effect the timing being off?

Mitchell12

Yea, it could. That's how you should be setting the spark timing. Should be 6* or something but check your manual.

scope103

Don't confuse cam timing (set by the timing belt) with ignition timing (set by the distributor). When you install the timing belt, crank is at 0 and cam pulleys point straight up to the marks. Then you are done.

Once it's buttoned up, you use the timing light to set ignition timing. Yes, you need to jumper TE1 to E1. The correct setting (around 10 degrees) is on the sticker under the hood (if set somewhere else you won't pass smog). Point the timing light at the crank while running, rotate the distributor to get the mark in the right place.

carlo082688

right... set pulley to 10" before TDC.. check timing light on pulley and rotate distributor to set desired timing, the manual says 10" or 8" BTDC...

bone collector

what motor??

scope103

I'm guessing 3VZE. Not that it matters much in setting ignition timing.

macneill5

I have set the cam timing properly, and then set the ignition timing with the distributor and timing gun...I set it to 10* while idling, but the engine ran rough at around 500 rpms. (In the manual I read from the above link it said while the te1 and e1 connectors are linked, the rpms should be 800 + or - 50* rpms.).

Thanks for the link to the manual it helped to understand the timing system a little bit better.

abecedarian

Was there anything in there about checking the timing and setting the idle with the engine at operating temp?

macneill5

Yeah, it says to get the engine to normal operating temperature. And then proceed to turn the idle speed adjusting screw.

It says that I need to have a tachometer plugged the IG connector, or would I be able to look at the tachometer on the dash? Sorry for the dumb question...

macneill5

Thanks for the help with the timing, it is timed properly, and running good according the link listed above.. I am now getting some hesitation when I step on the gas. If I press it slowly, I can accelerate with no problems, but when I step on the gas hard it sounds as though the engine stalls, and after a second or two it will accelerate.

I am thinking it could be something along the lines of either the air intake, or the fuel filter.. Does that sound right to anyone?