mevertsen
Well-known member
I acquired a 1987 4 Runner a while back. I started with the intent to replace the timing cover gaskets, and due to munching the head gasket in the process, I have the engine mostly broken down.
I have all the parts and began the process yesterday of putting it back together.
Starting with a new timing set and metal guides.
Torque spec for the metal guides in the instructions is 9ft lbs. My wrench goes down to 10. As I started to torque the first bolt, it kept going and going and... I stopped and backed it out. The bolt hole is oval shaped, and I was actually pressing the washer into the hole. I have never seen this before, and this is my first shot with a torque wrench actually.
Also, I was tightening the timing tensioner bolts, and actually felt one start to give. Again, I backed out. Luckily I was able to get the bolt put, but it is visibly twisted.
By parts I have found with USA stamps, I am sure this engine has been torn into before, and I am sure some bolts have been re used. I know a lot of bolts are designed for one time torque.
So questions...
Is the pressing in of the washer normal?
And..
What is the bolt spec for the timing chain tensioner?
Thanks.
I have all the parts and began the process yesterday of putting it back together.
Starting with a new timing set and metal guides.
Torque spec for the metal guides in the instructions is 9ft lbs. My wrench goes down to 10. As I started to torque the first bolt, it kept going and going and... I stopped and backed it out. The bolt hole is oval shaped, and I was actually pressing the washer into the hole. I have never seen this before, and this is my first shot with a torque wrench actually.
Also, I was tightening the timing tensioner bolts, and actually felt one start to give. Again, I backed out. Luckily I was able to get the bolt put, but it is visibly twisted.
By parts I have found with USA stamps, I am sure this engine has been torn into before, and I am sure some bolts have been re used. I know a lot of bolts are designed for one time torque.
So questions...
Is the pressing in of the washer normal?
And..
What is the bolt spec for the timing chain tensioner?
Thanks.