Head bolt question
#11
It's actually the opposite. TTY bolts are a new thing that older vehicles don't have. Manufacturers found that they hold better over longer periods, and it's easier to get a consistent torque across the head because you actually pass the bolts yield point , meaning the bolt reaches maximum torque before final rotation, and all the bolts yield at the same point.
#15
I understand, I didn't think you were. I think that it still allows it to get that much closer, and maintain that similarity despite different conditions sch as temperature, humidity, a little oil in the threads of one bolt, a little coolant or debris in another, etc. It makes the exact torque less specific taking those things more out of consideration.
Also, I believe that over time with repeated hot/cold cycles as the bolts may begin to move a little, they maintain a similar torque because they have a springy-ness to them.
Also, I believe that over time with repeated hot/cold cycles as the bolts may begin to move a little, they maintain a similar torque because they have a springy-ness to them.
#16
The TTY bolts also help out rebuilding engines in the bush. Very helpful when proper tools are hard to come by. 15ft lbs isn't too hard to achieve with a junk torque wrench from Auto zone. Then a sharpie and big wrench does the rest. I find it very user friendly vs my $600 snap on wrench that I have to send off to get re calibrated a lot.
Plus out of curiosity I've "hand tightened" some head bolts then did the 90 degree turns with good success. I wouldn't recommend it, but it works.
Land Rover 2004 and older have a lot in common with tractors. I love it.
Plus out of curiosity I've "hand tightened" some head bolts then did the 90 degree turns with good success. I wouldn't recommend it, but it works.
Land Rover 2004 and older have a lot in common with tractors. I love it.
#17
#18
#19
well I was going to say...as I over tightened that bolt it never got any tighter. I think the bolt was stretching as I turned it. Maybe it has something to do with how far the bolt goes in...idk.
#20
So I've been taking my time with this project to ensure that everything was done correctly. Today everything was going good. I changed the oil and started to fill the engine with fresh coolant before I started the up, I go to slide my jack under the front end to raise it up and that's when I saw a puddle of fresh coolant pooling up underneath. It seems as the coolant is running down the right side of the transmission. Any ideas on what the culprit may be? I know that every bolt is torqued to spec and the head bolts were done in the 15 ftlbs and 90° + 90° turns. Feeling pretty crushed and ready to beat the snot out of it with a baseball bat. Any thoughts would greatly be appreciated