Toyota Pickup HowTo: Valve Check and Adjustment

[mrdirty42012]

The half moon gaskets are there so you can get to the cam

[daverbmxer]

Hey J, I'm somewhat concerned that you may have not done this quite correctly. When the engine is at TDC and the disty rotor is pointing at the #1 spark plug wire, you can only adjust some of the valves. The manual will say which to adjust at that point. Then the engine must be turned over 360* to bring the valves that were open back to the closed position. You can't do all the valves from any one crank position. I only say this because at the end you said there was no gap on one.

[daverbmxer]

@daverbmxer (post didn't all fit) The gap gap that you are measuring should never get smaller than what it was last set at unless the adjustment screw lock nut was not fully tightened and worked its way loose, allowing the adjustment screw to tighten.. but that is not likely, it would almost definitely loosen. The gap will widen over time though as the camshaft and what rides on the camshaft wears. I only say this because I didn't see in the vid where you rotated the engine another 360*.

[daverbmxer]

@daverbmxer .. and because you had one valve that was tight. Otherwise it was spot on, I like the video. Personally I take a different approach to it. It may take more time (possibly) but there is next to no chance to screw it up. I look at the number 1 intake and exhaust valve springs. Rotate clockwise until the intake spring tightens, relaxes, exhaust tightens, relaxes, then turn a bit more. Now I know for sure that I can set the gap on those 2. Then move to cyl. 2. Hope it helps.

[ghotioutofh2o]

@daverbmxer Good observation. I checked and adjusted some valves at one TDC and the others at the other TDC. At 6:35, I have an annotation saying that I have a spreadsheet available with which valves to adjust at which TDC.

At the end when I said the one valve had no clearance, that was the correct TDC for that valve. You can see me try another valve (cyl 1 exhaust) to demonstrate how it should be, then move to another (cyl 4 exhaust) because I remembered that C1E wasn't one to...

[ghotioutofh2o]

@ghotioutofh2o ...adjust and C4E was.

[daverbmxer]

@ghotioutofh2o Ok, that's good! Just didn't want you driving around with it out of whack. Good video.

[ghotioutofh2o]

@daverbmxer I appreciate your concern. :-)