Notices
86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Valve Adjustment How Too...

Thread Tools
 
Search this Thread
 
Old Jul 22, 2007 | 07:47 AM
  #1  
skinnadoor's Avatar
Thread Starter
Registered User
 
Joined: Jun 2007
Posts: 122
Likes: 0
From: Comox Valley, British Columbia, Canada
Post Valve Adjustment How Too...

Can someone hook me up with the propper procedure for adjusting my engine valves in my 94SR5 4Clyn ????

I would like to hear any feedback as well, weird noises, knocking, and how adjusting your vavles got rid of the sound.


Please help !!!!! i know the clearances are .008 and .012 thou hot.... but i need some feedback from others that have done this, anything !!!
Reply
Old Jul 22, 2007 | 09:14 AM
  #2  
mattscout's Avatar
Registered User
 
Joined: Jul 2007
Posts: 5
Likes: 0
From: Colorado Springs CO
valve adjust

Pretty simple procedure. Intake valves are on passenger side and exhaust valves are on driver side. Remove valve cover. Roll engine over till timing mark is at 0* on the timing cover and check to see if #1 or #4 is at tdc by moving rockers to see which is loose and that tells you what cyl is at TDC. #1 @tdc adjust both Intake and Exhaust on #1. Adjust #2 intake and #3 exh. Roll engine 360* and bring #4 to tdc on compression stroke. Adjust #4 intake and Exh. and #2 exh and #3intake valve. The haynes manual has a pretty good description of the procedure so if you have never done it I recommend getting a book to get a feel for the procedire. I also recommend the angled feeler gauges to make it easier to get them in and out. When adjusting make sure there is a slight drag on the gauge but that it isn't too tight or stuck. Sometimes it takes a few tries but you get the feel for it after a few. It is important to adjust valves regularly on an engine with mechanical valvetrains to keep from burning valves. There will always be some noise from mechanical rockers but it should not be excessive. I did mine last week and it quieted down quite a bit. Later, Matt.
Reply
Old Jul 22, 2007 | 09:39 AM
  #3  
skinnadoor's Avatar
Thread Starter
Registered User
 
Joined: Jun 2007
Posts: 122
Likes: 0
From: Comox Valley, British Columbia, Canada
Originally Posted by mattscout
Pretty simple procedure. Intake valves are on passenger side and exhaust valves are on driver side. Remove valve cover. Roll engine over till timing mark is at 0* on the timing cover and check to see if #1 or #4 is at tdc by moving rockers to see which is loose and that tells you what cyl is at TDC. #1 @tdc adjust both Intake and Exhaust on #1. Adjust #2 intake and #3 exh. Roll engine 360* and bring #4 to tdc on compression stroke. Adjust #4 intake and Exh. and #2 exh and #3intake valve. The haynes manual has a pretty good description of the procedure so if you have never done it I recommend getting a book to get a feel for the procedire. I also recommend the angled feeler gauges to make it easier to get them in and out. When adjusting make sure there is a slight drag on the gauge but that it isn't too tight or stuck. Sometimes it takes a few tries but you get the feel for it after a few. It is important to adjust valves regularly on an engine with mechanical valvetrains to keep from burning valves. There will always be some noise from mechanical rockers but it should not be excessive. I did mine last week and it quieted down quite a bit. Later, Matt.


Thanks for the excellent description.... did you stick to the reccomended valve clearance specs? Or did you go tighter on different ones to work the noise out.....
Reply
Old Jul 22, 2007 | 10:02 AM
  #4  
TORTIS's Avatar
Contributing Member
iTrader: (1)
 
Joined: Jul 2007
Posts: 1,391
Likes: 1
From: shreveport, La
.007 int. and .011 exh. stone cold engine. i try and slip .008 and .012 to make sure they are set at .007 and .011. that is for my 87 22re.
Reply
Old Jul 23, 2007 | 06:07 AM
  #5  
PirateFins's Avatar
Registered User
 
Joined: Jan 2003
Posts: 1,958
Likes: 1
From: Smithsburg, Maryland
http://personal.utulsa.edu/~nathan-b...sm/engine.html page 21 (EG1-35) is the FSM method. Same instructions that Matt posted above, but with pictures. And like tortis most set them to .007 in and .011 ex cold, since working on them hot can be mighty painfull and you can be sure they are at the same temp when cold. As the clearance's can change when they are hot by the time you get to the last set, do to cool down.

A trick that I have learned is when you check the drag, is to not hold your srewdriver on the adjuster screw since you will be pushing down on it effecting the true drag reading. Instead I loosen the nut enough to turn the screw and then hold my finger on the rocker arm firm against the cam as I am checking the gap with the feeler guage.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Blamalam
86-95 Trucks & 4Runners
22
Mar 12, 2022 07:34 AM
Jason Webber
86-95 Trucks & 4Runners
8
Sep 2, 2015 03:30 AM
DukeOfHazard
86-95 Trucks & 4Runners (Build-Up Section)
2
Aug 16, 2015 01:48 PM
Dennisx2
General Electrical & Lighting Related Topics
0
Aug 4, 2015 01:26 PM
razorman8669
86-95 Trucks & 4Runners
9
Jul 12, 2015 12:13 PM




All times are GMT -8. The time now is 06:19 AM.