Johnanthony

This may be a contributing factor. I am still not 100/ sure why this has happened. I am not a master mechanic, I just love ford motor cars, and I am having a go like an Aussie battler.

Ow.

The first time I snapped the bolt was on the third pass pass. The durapro bolt snapped on the second. i want to reach maximum torque over 3 passes

So here was my method.. Solvent all surfaces Fit gasket to block Fit head over gasket using locating pins Install all bolts to finger tight by hand, dipping the first 3rd of thread into clean motor oil then wiping bolt of any excess with an oily rag so as bolts are dry but oily to touch. Using a king chrome click type torque wrench, 14mm socket, and extension bar, I slowly turned bolts 1/4 turn at a time until tension was reached or until bolts snapped. An E2 head is a tick ford thing I believe. It has nothing to do with OHC. We are still working on a xflow mate. The Only difference to my E2 stamped head is the chamber is diamond shaped instead of circular. It looks cool, but I don't know how this would perform differently to standard versions.

That being said. I do have an E2 head. What is this angle torque you speak of master?

Little experiment master. Stand on a set of scales and deduct your weight. Now jump on the same set of scales and see if the readings will fluctuate. Determine the maximum reading. Now put said pillow on the same set of scales and deduct your combined weight. (You should see an increase in maybe 100 grams) Now jump on the pillow on the same set of scales. Determine the maximum reading. The principles are the same agreed. However if you report your findings we will see that even though the same amount of resistance is applied we can have very different readings when calculating force and inertia.

Ha ha pretty funny. So I guess the extension bar causes a mis read on the torque wrench. Ever heard extension bars called a torsion bar? This is because the property's of steel allow flex, or in this instance torsion. Therefore when measuring torque at a slow controlled pace, the bolt has reached its desired maximum setting long before the actual torque reading on the wrench has engaged. This is because of the torsion inertia effect is a reduction in torque force applied. So much so that I was able to snap bolts with a precision torque wrench set on a low setting. Before the wrench engaged. Mind blowing. Works in reverse too. When tightening bolts by hand the maximum amount of torque possibly applied to a bolt is less when using a torsion bar. Thanks for all the support. When Lady Luck turns and smiles in my direction. When I stop making stupid mistakes, when I make a decent amount of progress... I will remember all the support and upload some photos. The build is an 84, Xf ute 250 xflow Injected gas Lukey high flow system Aussie four on the floor. It has been a long and slow process as obviously I am stupid or crazy and don't know what the hell I am doing, and this vehicle has lived the hard life. Just like an Aussie ute should. Long live Aussie fords.

Would this happen if I have a warped head?

Thanks for the posts guys. I am positive I set the wrench properly. Even had my cousin check it at the time, so we can't both be wrong ( I was borrowing his wrench). What baffles me is that a wrench set to 60£ft should click well before I am able to snap the bolts. Obviously I am using the tool incorrectly. I think it is because I was using an extension bar between the socket and the wrench.

Overheating. Exhaust leak

Rookie mistake, try setting the thing to 98nm only on the £ft side and the thing is not going to work properly. I checked I wasn't that stupid already, yet I don't think many ppl could torque 102£ft by hand. It does feel like the bar is not working properly though. I have been using an extension wobble bar both times and I think that may be affecting reading.

Bolts are all the same length, and the wells are a lot deeper than the bolts.

First time was the 10th, today was the third.

The first time I thought it was a stuffed tourque wrench. That was with the original bolts. I ordered a duropro set and borrowed a different wrench. And snapped another bolt today. Just want to get it right this time. Pretty embarrassing that I have to put the head on a third time now.