jpmountainboy

just finished my sas and found out my new crappy rebuild engine from "mototime" is blowing bubbles into my coolant, leaking coolant from exhaust manifold. it only has 700 miles on it so im going to try an tighten the heads down and see if i get any luck.

(3vze engine)

my questions are:

what does this "additional 90" business mean??? can someone clarify these steps.

is this correct???

it looks like they are all 12 point.

thanks...i really want to test drive this thing after just finishing my sas.




Cylinder Head Bolt
12-Point Bolt
Step 1 ........................................ 33 ft lbs
Step 2 .......................... Additional 90 Degrees
Step 3 .......................... Additional 90 Degrees
6-Point Bolt ................................... 30 ft lbs

jpmountainboy

nabuchankala iru??

abecedarian

common courtesy is to give at least 24 hours for a reply.
bumping a post within 1 hour is not considered a good thing.

abecedarian

most everyone around won't have the same engine / rebuilder / situation you have
many of us search the forums before posting

gametom

what i was taught is that if it has that turn it 90 degrees more so a quarter turn more no matter the torque

olharleyman

Torque to yield aka +90 degrees
If your torque hits and 12 o clock then you would turn the bolt again to 3 o clock no specific torque to meet at the 3 o clock position , so where ever your torque is met go a quarter turn more and do not worry about the torque rating for the extra turn. AKA torque to yield.

Think of looking at a clock and think 12 to 3 to 6 to 9 all quarter turns from each other make since? could be any time mark on a clock just remember 1/4 hour increments

Dirt Driver

I have always heard it called "torque to angle" when the bolt is turned X° past a certain torque reading.....

algranger

It means turn 90 degrees past your torque
Dont torque them and call it good, do it again correctly this time. Once the gasket starts to let go its a gonner

PCE91V64x4

Head bolts are one time use. If you want to re-torque them you might consider taking them out and using new bolts. I would not want to break one of them, which could be a possibility if the rebuilder followed the book and did the torque plus 90 degrees and the bolts have hit their yield strength.

TNRabbit

It's FUBAR'd. You'll have to replace the HG because they DID NOT do it right if you're having those isssues...

TNRabbit

What did you end up doing?