exhaust nut keeps coming loose
- Thread starter san supra
- Start date
Yeah i looked that up online and it said 29ftlbs and i looked it up the other day in my 88 repair manual when i was installing a exhaust manifold and it said 25ft lbs. Maybe there was a difference between the years as the cygnus site is for 89+.
Either way mine are torqued to 20ft lbs with a quality torque wrench and in over 2 years and 20-25k they have never backed out with stock nuts.
---------- Post added at 08:00 PM ---------- Previous post was at 07:51 PM ----------
To me it sounds like your under torquing bolts. Its impossible to get a torque wrench in there with a socket unless you have a special tool. Ive resued those nuts to and just tightening with a 14mm wrench ive never had one of those come loose.
Either way mine are torqued to 20ft lbs with a quality torque wrench and in over 2 years and 20-25k they have never backed out with stock nuts.
---------- Post added at 08:00 PM ---------- Previous post was at 07:51 PM ----------
san supra;1564856 said:
To me it sounds like your under torquing bolts. Its impossible to get a torque wrench in there with a socket unless you have a special tool. Ive resued those nuts to and just tightening with a 14mm wrench ive never had one of those come loose.
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To me it sounds like your under torquing bolts. Its impossible to get a torque wrench in there with a socket unless you have a special tool. Ive resued those nuts to and just tightening with a 14mm wrench ive never had one of those come loose.[/QUOTE]
the motor and turbo are out so i can torque it correctly
i torqued mine at 30ft/lbs now that i remember.
what about the turbo to manifold nuts...they are just normal nuts?
mine have come loose even before i ever rebuilt the motor.
To me it sounds like your under torquing bolts. Its impossible to get a torque wrench in there with a socket unless you have a special tool. Ive resued those nuts to and just tightening with a 14mm wrench ive never had one of those come loose.[/QUOTE]
the motor and turbo are out so i can torque it correctly
i torqued mine at 30ft/lbs now that i remember.
what about the turbo to manifold nuts...they are just normal nuts?
mine have come loose even before i ever rebuilt the motor.
No there exhaust nuts not reg nuts you put on your fan clutch. Which i was referring to was the turbo the exhaust manifold nuts as unless you have to proper tools its next to impossible to torque the top nuts.
I have had the down pipe nuts come loose before but all i did was a lil loctite(which prolly burned off) and gave them a lil more that tight by hand with a 14mm wrench.
I have had the down pipe nuts come loose before but all i did was a lil loctite(which prolly burned off) and gave them a lil more that tight by hand with a 14mm wrench.
