Caught myself torquing head bolts dry for 12 years until last Tuesday

I was doing a rebuild on a 6.7 Cummins and just slapped the bolts in dry like always. Jake the senior mechanic walked over and asked if I liked buying new gaskets every 6 months. He showed me his bottle of ARP Ultra Torque and said to put a thin coat on the threads and under the washer face. Ran a few bolts with and without and the torque difference was almost 15 ft-lbs on the same bolt. Anybody else ever get humbled by a simple lube change that late in the game?

2 comments

2 Comments

kaip116d ago

Switched to moly paste on my main cap bolts and saw the same wake up call.

tarac166d ago

Wait, seeing moly paste made that big of a difference for you too? I had the exact same moment where I realized what I'd been missing all along. It's crazy how much a little change in lube can wake things up.