Valve adjustment on 1 FZ FE

[FJZ80AZ]

I just finished up a valve adjustment on my 93 FZJ80. I created and used a spreadsheet to run the formulas to figure out what shims were needed. It really made the work a lot easier.

If anyone wants a copy just email me at djlancaster@gmail.com I tried to share here but excel format isn't accepted.

 

[Kernal]

Maybe you could send the Mud web site administrator a message (Contact us at the bottom of the page) asking if there was a way to allow uploading your spreadsheet, seems like good FAQ material.

 

[FJZ80AZ]

I received a pm asking for an explanation of how the spreadsheet helps. It works like this... Measure off-spec valve clearance, enter value.
Measure current shim, enter value. New shim value that will bring your clearance within spec will calculate in last row. Replace shim with new shim indicated.

I used a tablet. My friend who's helping with this rebuild took all the measurements while I keyed the values into the spreadsheet. The spreadsheet did all the calculations giving me the shim sizes I needed to bring all within spec (about half were within spec).

Attached is another valuable piece of info. The shims with their part numbers on page 2 of attached. Happy to answer any questions.

 

[half k cruiser]

Without going out into the garage and pulling my FSM I'm assuming this is a cam out job ? Pull the VC + cams and cam gears then use a micrometer or something to start taking measurements ?

 

[Pin_Head]

I don't know but can't most people with a high school education do that kind of arithmetic in their head? I mean if the clearance is too big by .003, then you need a shim that is .003 wider.

 

[powermad]

That's pretty much how I do it.
Stupid shims.
Measure twice and buy once.

 

[Howard705]

How far out were they? Mine at 170k was spot on.

 

[FJZ80AZ]

I don't know but can't most people with a high school education do that kind of arithmetic in their head? I mean if the clearance is too big by .003, then you need a shim that is .003 wider.

Of course anyone can do the arithmetic themselves. This just helped me keep better track of it and did all the work for me. 24 valves was a lot to keep track of and I felt that by having a computer do the work there was less chance of an error.

 

[FJZ80AZ]

How far out were they? Mine at 170k was spot on.

I just had the head rebuilt, including a valve job so half of them were off.

 

[FJZ80AZ]

Without going out into the garage and pulling my FSM I'm assuming this is a cam out job ? Pull the VC + cams and cam gears then use a micrometer or something to start taking measurements ?

You need the cams on in order to measure the clearances. I used a feeler gauge to measure clearances and a micrometer to measure the old shims.

 

[FJZ80AZ]

Maybe you could send the Mud web site administrator a message (Contact us at the bottom of the page) asking if there was a way to allow uploading your spreadsheet, seems like good FAQ material.

They can't allow excel files loaded to the server.

 

[half k cruiser]

You need the cams on in order to measure the clearances. I used a feeler gauge to measure clearances and a micrometer to measure the old shims.

So cams are on, you measure your clearances, then cams come off so you can remove, measure, then replace the shims ?

 

[FJZ80AZ]

So cams are on, you measure your clearances, then cams come off so you can remove, measure, then replace the shims ?

Correct, that's how I did it. I read about leaving the cams on and using an SST to push the lifters down to remove the shims, but I preferred to do it how you described.

 

[half k cruiser]

Well that doesn't sound too bad. May I ask how much your shims cost you ? I have a pretty good rattle in the valve train and have been wondering if I just needed to re shim.

 

[FJZ80AZ]

Well that doesn't sound too bad. May I ask how much your shims cost you ? I have a pretty good rattle in the valve train and have been wondering if I just needed to re shim.

They were $10.46 each from my local Toyota dealer. If I had the time I would've checked with some cylinder head shops to see if they'd be willing to sell me some or let me trade my old ones for theirs and some cash (worth a try). They are pricey little bastards.

The spreadsheet also helped me play around with clearances and tweak what size shim I wanted to get the highest clearance within spec (more is better than less).

 

[Stevesnj]

Cant the checking and shimming be done on the bench or does the head need to be bolted to the block?

 

[scottryana]

If you are super super anal, it should be done torqued down, but in reality the changes will be so small that doing it on the bench is fine.

 

[LandCruisinMy93]

I don't know but can't most people with a high school education do that kind of arithmetic in their head? I mean if the clearance is too big by .003, then you need a shim that is .003 wider.

.003 THICKER? Sorry pinhead. I couldn't resist, you almost never make mistakes in your typing like that, it's such a rarity that I had to.
I can definitely see how a spreadsheet is a valuable tool for ease of calculations and keeping track of which new shim goes on which tappet. You are definitely correct about it being simple arithmetic though.

 

[Pin_Head]

Yes, thicker shim. If the gap is too wide you need a thicker shim to bring it back in spec. Your high school arithmetic teacher just called, so you better check your arithmetic.

 

[Stevesnj]

So can the current installed shim have an additional shim put in the tappet? Or do I just replace the out of spec shim with a new shim with the corrected height from measuring.