How to adjust valves on DOHC toyota HOW-TO

[Jeremy]

Anyone that needs to adjust their valves or upgrading cams read this b4 attempting
www.4gcelica.net/v4/diy/valve.html

[blck87gtconv]

Nice write-up.. it is much appreciated ;D -Jason

[Mike92LX]

Very nice!

[Joel87GT]

Jeremy said:

you take the cams off being carefull to start at the inside & work your way out in at least 2 series before pulling the bolts out & pulling the cam out,

[/url][/quote]


Jeremy: Nice Write Up.

Referring to the HAYNES manual. How did you pull the cams w/o messing with belts and pulleys. I hope to see th pictures soon.

Today was BS for me. I have searched the valley with Autozone, Bap, Napa, Pepboys for Valve Lifter tool. My last stop was Superstition Toyota. Parts dept says they dont have the tool will have to order from the east toyo dealers. Imagine the percentage of DOHC here in the valley with no Valve Lifter tool? Oh yeah, the tool runs for about 120buxs.

[Joel87GT]

Joel87GT said:

I have searched the valley with Autozone, Bap, Napa, Pepboys for Valve Lifter tool. My last stop was Superstition Toyota. Parts dept says they dont have the tool will have to order from the east toyo dealers. Imagine the percentage of DOHC here in the valley with no Valve Lifter tool? Oh yeah, the tool runs for about 120buxs.

J:

Here is more ammo for your write up. Hope this helps.
Refer to haynes : Chapter One: Tune Up and Routine maintenance.

Page -1-31 illustrated picture 32.9b

Valve Lifter Tool Part N# 09202-43013-01

Just ask for the part number from any toyo dealer -its listed their catalogs and computer base. The tool is expensive but is a worth while investment.

I wish I could netflex the valve lifter tool.

[Jeremy]

that tool is commonly available at any big tool company,
SNAP ON, MATCO, MAC, CORNWELL, SK. And for like $30
it is also not neccessary, if you do a valve adjustment once a week that tool is nice to have, but valve adjustments dont usually change on toyotas for 100's of thousands of miles. usually don't need to do one enless you can hear top end noise.

[Joel87GT]

Jeremy:

Hey I know ur busy in Dexter's secret lab. Will have a method of pictures demonstrating how to take the cams off w/o removing timing belt cover as explained your DIY Valve adjustment.

From what I'm reading - I will not need the Valve lifter tool since we can just pull the cams off.

[Joel87GT]

Continued........


This is a worth while investment GET THIS TOOL ~ it can't be found at your average autozone store. So following Jeremy's write up... I can finally say I completed this thread.

buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=11702&group_ID=1569&store=snapon-store&dir=catalog



Retails: $40.90

Tool, Valve-Adjusting(Toyota, other OHC engines with spacer shims)
Stock#: YA8825

Description:

For Toyota and other overhead camshaft engines using spacer shims. Shim pliers push between the shim and camshaft, allowing the included YA8825-1 Wedge Tool to be placed between the valve lifter ledge and camshaft for easy shim replacement.

Additional Description:
Valve-Adjusting Tools (for current VW). These two tools are designed to be used together on all late models requiring the VW #2078 tool, which includes all current 5-cylinder VWs and Audi 5000.



Other Links for Valve Adjustment Tools

www.etoolcart.com/browseproducts/Valve-Adjusting-Tool----SP83100.html





Hey Jer* ~ you got this tool I can borrow for a few days. thanks.

**************************
Valve Clearances
3S-FE and 3S-GE, 5S-FE
Intake valve clearance .007" - .011"
Exhaust valve clearance .011" - .015"

3S-GTE all US models
Intake valve clearance .006" - .010"
Exhaust valve clearance .008" - ".012"
Notice all specs are for a cold engine, only measure on cold engine.


Service interval for valve adjustment is every 60,000 miles.

Now you probably think that as long as the clearance between the bottom of the cam lobe & the shims is between those ranges then it's good, well that is wrong.
First of all before taking the cams off you need to measure the clearances when it says .007 - .011 it means that with the cam lobe facing 90 degrees up from the head (straight up) .007" feeler should slide between the cam lobe & the shim, but .011 shouldn't slide. if this is the case take a sharpie & by that shim write OK on the head. Then move to the next. But what do you do if it stops on .007 then you need to try .006 if that stops try .005,.005 will slide, then you know that you need a shim .002 less than the one in there, so you write -2 on the head near that valve. now what do you do if it slides at .007 and .011, well you keep trying higher sizes lets say that it stops at .018 then you know that you need a shim that is .007more than the one that is in their & you mark +7 near that valve, when you are all done measuring all 16 valves. you take the cams off being carefull to start at the inside & work your way out in at least 2 series before pulling the bolts out & pulling the cam out, now one at a time with a magnet pull the first shim out, sometimes you may have to bang the whole bucket on something to get the shim out, but after it's out take a micrometer & measure it's size, let's say it's .109" & you need +2, then get a .111 & put it in the bucket & put it back in the head & move on to the next valve & repeat. Once you have done all 16 valves you need to get either assembly lube or some SAE40 motor oil & poor it over each bucket & where the cam rides on the head & then put all the cam caps back on. starting in the middle & work your way out just like you did before & I beleive the torque spec is 16-19 ft lbs on those bolts so not that tight, just good & snug. then you get to measure them all over again making sure that you did them all right, don't worry if you have a couple wrong it just means remeasure them & do those again. And just so there is no confusion! everytime you go to the next valve when measuring make sure you turn the cam to where the lobe faces straight up so that the valve is closed all the way. & that is how you adjust toyota valves on any DOHC toyota engine.

Also if trying to adjust the valves on the car, toyota and most professional tool companies sell a tool that you can use to compress the valve spring & remove the shim withou removing the cams, makes it much faster.

Shims are available from toyota but I beleive they are close to $10 a peice. If your cams are stock you most likely won't need much of an adjustment enless they are making alot of noise. If you are installing bigger or smaller cams then you must do a valve adjustment or you might float your valves & destroy the engine. Basically anytime I tear the valve cover off I check the valve clearance to make sure it's good!

Pictures coming soon.

[schmooot]

ha me and my old man always joke about that:

"Damn I can't get this piece off, what the hell, I need to get in behind this thing and then turn that but it has a weird head on..............dammit"

"well thats because you need special toyota tool #8437-49B"