Installing shims and cam's

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shanegt

Member +
Got a new head for the motor, got it back from the engineer without the shims in it, what do I have to do to get them back in and the cams, is it a tricky job? tried searching the site but could get anything, cheers Shane.
 
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T

triple j

Member +
its best to number the shims before the come out, i think u have to fit them 1 by 1 and check the spaceings with a feeler gauge.
 
sx_turbo

sx_turbo

Lifer
right,

fit the buckets, and the shims

u need to grease up, loads and loads of grease the cam lobes and where the cams sit in the head.


then rotate the cams and watch the buckets being pushed down.

and this is the rule,

when valve number 1 is pushed all the way down, you check the gap on valve 8

when 2 is down you check valve 7 and so fourth.

if any of the gaps are out, u need to remove the shim, measure the shim and either + or - the ammount you need to get the shim back in tolerance, and then either buy direct from toyota, or some engine specialists can help, or if u need to take some away a machinist can help.

its a little time consuming, and shouldnt be attempted if you dont quite understand it all
 
S

shanegt

Member +
Cheers lad's for the help, in regard's to the shim's they are the proper one's from the head so should they fit perfect?
 
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shanegt

Member +
Right sound, the engineer marked all the shim's on removal to, what is the rough spacing's when measuring with the feeler gauge ?cause not sure if the one's the bro has are suited.
 
weeJohn

weeJohn

Lifer
If the valves have had any work, even lapping, then you may need to change shims. Buckets also vary a little in thickness so they could affect the clearance as well. Its a slow process but a necessary one to get the engine running sweet.
 
C

ChrisD

Member +
As said, you install everything, as it was going to fire up and then measure every clearance and not them down.
When remove cams, remove, measure and number the shims. You should be able to match some shims to some valves to bring the clearance to the correct number, but you probably need to buy some new shims also.
 
M

Muddy_fox

Member +
sx_turbo said:
right,

fit the buckets, and the shims

u need to grease up, loads and loads of grease the cam lobes and where the cams sit in the head.


then rotate the cams and watch the buckets being pushed down.

and this is the rule,

when valve number 1 is pushed all the way down, you check the gap on valve 8

when 2 is down you check valve 7 and so fourth.

if any of the gaps are out, u need to remove the shim, measure the shim and either + or - the ammount you need to get the shim back in tolerance, and then either buy direct from toyota, or some engine specialists can help, or if u need to take some away a machinist can help.

its a little time consuming, and shouldnt be attempted if you dont quite understand it all
Click to expand...



Hi mate,

Just to ask a favor, can you make a diagram for which valve is #1, #2, etc. and which side are those, intake or exhaust.

TIA
 
weeJohn

weeJohn

Lifer
Looking at the engine with the timing belt to the left, the rear row are intake valves, numbered 1 to 8 from left to right. The valves closet are exhaust, numbered the same.
 
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