3fe valve adjustment

[Brandini]

Getting ready to do my second valve adjustment in a week and want to seek the advice of some mud members, so I don't have to do a third next week.

1991 cruiser. Adjusted valves twice and still has a tick. Not sure exactly why it's reoccurring, but my gut instinct tells me the tension nut is loosening up on the tolerance screw. Has anyone replaced these nuts or experienced anything like this? Considering redoing the tolerances and putting a single drop of lock tight on each one to hold it in place? Thoughts?

 

[Eicca]

3FEs will forever sound like manic typewriters. Ever ridden in a vehicle with a 22R or RE? Those things are LOUD! That's just the nature of the old Toyota engines. I've learned to love it. It turns heads

 

[Cruisercouple]

I went through the same thing. The service manual says to have it done every 15k miles. I have been good with doing it, but it's still loud has **** . It's kinda soothing to me now haha

Sent from my iPad using IH8MUD

 

[Bjohnston115]

is there a "how-to" on how to do this? I have the service manual but the explanations and pictures from fellow mudders are always better.

Thanks,

 

[nmhunt]

Looking at doing a valve adjustment in the next couple months. Glad you started this thread, subscribed!

 

[toddlsc]

Is the tick on one cylinder or all?

I swapped metric and sae reading the FSM and left way too much gap on my first attempt.

I was replacing the head gasket, so i knew I would be adjusting them again. But it does make me wonder how many others have made the same mistake.

After my second pass they are silent.

 

[40TUDE]

i will disagree with the guys saying the valves are normally loud, with proper adjustment they should not be very noticeable at all
thanks

 

[SUMMIT CRUISERS]

After many times doing the same, I now adjust them while the engine is running.
How to on a 3FE? Park on a level surface (keeps the oil from running off the valve train/upper head area). Remove and then reinstall your air intake hoses after removing your valve cover. Plug the two vacuum hoses coming off the valve cover. Start the engine and adjust away. I have noticed by doing it this way there is about 1/4 of a turn of adjustment on one end where the engine starts to miss and on the other end the valve starts to tap. I postition it as loose as possible just before it taps. After doing all, I shut off the engine and double check with the feeler gauge just to make sure. Adjustments are usually spot on.

FYI, the reason I started doing it this way is I was always redoing the valve adjustments thinking I could do better. One of my FJ40's had a tick on the back valve that I could only quiet it by this manner. Since then, when I do it this way, I know the valve train is adjusted properly and when re-started it will perform as quiet as it was when adjusted.

I also have to disagree about the valves being normally loud. They only sound I hear out of my 3FE is the fuel injectors ticking.

 

[Tenzig Norgay]

Here's a good read for the procedure https://forum.ih8mud.com/60-series-wagons/78672-3fe-valve-adjustment.html

I have yet to do it with the engine running summit, but I will try it next time, which will be very soon. I'm afraid since I have long hair, so I'll have to were a sock over my head, maybe cut holes in it for the eyes and such.

 

[Brandini]

The tick sounds like it's only on 1 or two. I will try to do the engine running method tonight and see how it works out. Do you adjust one side before the other? Intake/exhaust?

 

[Cruisercouple]

Thanks summit!! I'll have to give it a try with the motor running. Never thought of doing it that way.
Mine has been loud ever since I bought her. Just thought it was the way it was. I'll give it a shot this weekend and report back. Thanks again for the tip.

Sent from my iPad using IH8MUD

 

[SUMMIT CRUISERS]

The tick sounds like it's only on 1 or two. I will try to do the engine running method tonight and see how it works out. Do you adjust one side before the other? Intake/exhaust?

It doesn't matter. I start from the front and go to the back. I have even used the feeler gauges while it was running. With the valve relaxed, in the up position, you should be able to tightly slip in the appropriate gauge. It does tend to beat the h out of them though.

One more note, be very careful on those intake hoses. They tend to crack and break very easily.

 

[Brandini]

Tried the method and was able to adjust the tick out of the rocker; however when I shut it down and double checked, I was to tight on the tolerances. Lol guess this method takes practice. However; I did have an Eng. at my house this weekend and he supported, this was the best way to adjust the valves. Thank you for the help! I love Mud!