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Every few months my car starts to run rough, lurches, basically acts like she needs a tune-up. Makes early morning driving a real nightmare, and sitting at a stoplight annoying as hell. It does this until the motor heats up, then basically no symptoms.
I know the intake bolt torque is ~9 ft-lbs (107 in-lbs). Problem is, every time I use a torque wrench, I get to about 7 ft-lbs or 80 in-lbs and the bolts just turn. It appears I need to draw the intake down more to get a complete "metal to plastic" seal...but, I'm scared of cracking the plastic, so I always quit while I'm ahead.
Question (s):
TIA
To fix, I go under the hood and tighten the intake bolts a hair. The car goes back to normal. Purrs nice and smooth, no more "missing" when stopped....etc.
I know the intake bolt torque is ~9 ft-lbs (107 in-lbs). Problem is, every time I use a torque wrench, I get to about 7 ft-lbs or 80 in-lbs and the bolts just turn. It appears I need to draw the intake down more to get a complete "metal to plastic" seal...but, I'm scared of cracking the plastic, so I always quit while I'm ahead.
I've got 2 different torque wrenches, so 99% certain it isn't a tool problem.
Question (s):
At what point is the intake o-ring compressed so that I can actually torque the intake bolts to spec? Anybody had luck with this? Does it ever get better?
Seems trivial, but it really gets old doing this.
Sadly, this sort of work is what I do for the Navy...but I only deal with metals at work. Plastic scares the hell out of me. Especially on the intake with such low torque values.Seems trivial, but it really gets old doing this.
TIA