Warped

[jinzuke]

Well the big problem is the warped head. I don't know what i should do. The head is out .014" the book tell me to replace it if it is .0079"

 

[wussyPup]

ouch! no advice, just sharing the pain

 

[dslcruzr]

can you get it milled?

 

[jinzuke]

milled

yes I can get it milled but it will be .006" under size. i think toyota says to replace it if is .0079" cause the cam might bind + the valves will to to close to the pistons.

 

[crustyBJ60]

check with "just heads" in langford.

maybe you can split the difference, dunno, just a thought. might buy you some time till you can score a new one.

crusty

 

[seapotato]

extra thick head gasket? ( or double up, I've heard of folks doing that with 3b's..)

 

[mac]

extra thick head gasket? ( or double up, I've heard of folks doing that with 3b's..)

This will affect your compression ratio and may result in difficult cold starting.

 

[seapotato]

This will affect your compression ratio and may result in difficult cold starting.

well yeah, that's kinda the point, to counter the effect of milling the head beyond the specs in order to get the warp out.

 

[jinzuke]

ya two ways to do it one bigger head gasket which could lead to harder starting or turning material off the face of my pistons so they don't hit the valves.

now the third way shink the valves deeper into the head.

all in all the best way is to just buy a new head.

 

[Jimmy B]

Just wondering,if you went to a thicker head gasket or doubling up could you not take more material off the head to keep the clearance the same for compression or bumping clearance ????
Should keep the valve to piston clearance the same but am not sure if you will be altering the shape of the combustion chambers.Would keep the crank and cam centerlines close to stock..

 

[wombat]

my 2 cents worth. if you are going to keep your rig and wheel it hard fix it right and get a head. if you are going to flog it after repairing it then mcgiver it any way you can. you really dont want to take it all apart again in 3 months when it blows a gasket again.

 

[jinzuke]

Ya jimmy I am going with a thicker head gasket. I will lose a bit if compression but the motor was putting out 500+psi on each cylinder before I took it apart.

As for mickey mouse"n It I don't belive In It. Even If I machine material off the piston or the valves It will make the motor weaker. We are talking about .014" over 26" on the head. On a alu head that would be alot but on a cast iron head with a cast iron block they expand @ the same rate so the gasket stays sealed.

I just hope the cam and valve train are still alined.


and If all else fails I will get a new head.