Lextreme II
Active Member
From my blown headgaskets I learned how to change cams from the hardway.... Now I made it easier for you guys. How to Replace Cams Few more pictures will be added. Meanwhile enjoy it...
How to replace cams
- Thread starter Lextreme II
- Start date
The 1UZFE EGR Delete Kit is available for sale here.
cams and cam clearance
i have a set of cams from a stripped motor...how do i preload the split gear on the exhaust cams ? also to adjust cam clearance, it appears that the valve clearance shims have to be replaced with different thickness shims....are these available separately or only in sets ...and what thicknesses are available..... thanks, ashow
i have a set of cams from a stripped motor...how do i preload the split gear on the exhaust cams ? also to adjust cam clearance, it appears that the valve clearance shims have to be replaced with different thickness shims....are these available separately or only in sets ...and what thicknesses are available..... thanks, ashow
Lextreme II
Active Member
Hello Ashow,
Here is an good tutorial on the spring loaded cam by Elliot. Have you seen Elliot's Shim Clearance Tools yet?
Here is an good tutorial on the spring loaded cam by Elliot. Have you seen Elliot's Shim Clearance Tools yet?
cams & cam clearance
lex, thanks for your reply,the tutorial is great,but still need answers re the cam clearance shims, and also what are the inlet and exhaust valve clearances? i live on a large island [150 km. long] and rarely get to the mainland..there is NO info available locally for these motors.,and when i ring mainland toyota dealers they are also unable to help. this site has been almost the only source of info for me !...ashow
lex, thanks for your reply,the tutorial is great,but still need answers re the cam clearance shims, and also what are the inlet and exhaust valve clearances? i live on a large island [150 km. long] and rarely get to the mainland..there is NO info available locally for these motors.,and when i ring mainland toyota dealers they are also unable to help. this site has been almost the only source of info for me !...ashow
Lextreme II
Active Member
Inspect camshaft journals
Using a micrometer, measure the journal diameter.
Journal diameter:
Exhaust camshaft thrust portion (A)
23.959–23.975 mm (0.9433–0.9439 in.)
Others 26.954–26.970 mm (1.0612–1.0618 in.)
If the journal diameter is not as specified, check the oil clearance.
Inspect cam lobes
Using a micrometer, measure the cam lobe height.
Standard cam lobe height:
Intake 41.710–41.810 mm (1.6421–1.6461 in.)
CHECK AND ADJUST VALVE CLEARANCE
Turn the camshaft, and position the cam lobe upward, and
check and adjust the valve clearance.
Valve clearance:
Intake 0.15–0.25 mm (0.006–0.010 in.)
Exhaust 0.25–0.35 mm (0.010–0.014 in.)
Exhaust 41.910–42.010 mm (1.6500–1.6539 in.)
Minimum cam lobe height:
Intake 41.56 mm (1.6362 in.)
Exhaust 41.76 mm (1.6441 in.)
Using a micrometer, measure the journal diameter.
Journal diameter:
Exhaust camshaft thrust portion (A)
23.959–23.975 mm (0.9433–0.9439 in.)
Others 26.954–26.970 mm (1.0612–1.0618 in.)
If the journal diameter is not as specified, check the oil clearance.
Inspect cam lobes
Using a micrometer, measure the cam lobe height.
Standard cam lobe height:
Intake 41.710–41.810 mm (1.6421–1.6461 in.)
CHECK AND ADJUST VALVE CLEARANCE
Turn the camshaft, and position the cam lobe upward, and
check and adjust the valve clearance.
Valve clearance:
Intake 0.15–0.25 mm (0.006–0.010 in.)
Exhaust 0.25–0.35 mm (0.010–0.014 in.)
Exhaust 41.910–42.010 mm (1.6500–1.6539 in.)
Minimum cam lobe height:
Intake 41.56 mm (1.6362 in.)
Exhaust 41.76 mm (1.6441 in.)
Lextreme II
Active Member
I also created a tutorial on How to Adjust Shim. Its alot harder then it seems. Its not done yet, but I am working on it.
