Hey guys,
my car just got back rom the shop and the guy is saying that the head bolts look to have come loose...its a newly built 2200 turbo engine built for 15-20 lbs of boost.....i have ARP head Studs with a copper head gasket.......Does anyone know how tight i should torque the bolts?? pLEASE LET ME KNOW ASAP!!! THANKS GUYS IN ADVANCE!
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"What is that?....A Civic? Two Sounds: 1) My Fist hiting your Head 2) Your Head Hitting the Ground!
Call arp they will be able to give you the tq specs for there studs. Porobably around 90ft lbs thats what my 2.4 studs are. Dont go by stock specs only arp.
- 97 Z24 Racecar work in progress
- 04 WRX STi
ATR Crew Member
Hey thanks for the input......i just called the engine builder and he said that the short bolts are 43flbs and the long are 46 lbs and then a 90degree turn after that.......I'm just going to take it back to them to do it..........does that seem right or is that way they came loose?
<img src="http://www.j-body.org/registry/autobot/personal_pic.jpg">
"What is that?....A Civic? Two Sounds: 1) My Fist hiting your Head 2) Your Head Hitting the Ground!
Autobot wrote:Hey thanks for the input......i just called the engine builder and he said that the short bolts are 43flbs and the long are 46 lbs and then a 90degree turn after that.......I'm just going to take it back to them to do it..........does that seem right or is that way they came loose?
Those torque specs they gave you are either OEM torque specs or they flat out lied to you. ARP are not the same. OEM are torqued to yield...ARP are not.
If you can find which bolts you have, you can check
ARP's web site for torque specs, or call them like Atomic suggested. If I remember correctly, my 2.4L were torqued at 75 ft-lbs.
Autobot wrote:Hey thanks for the input......i just called the engine builder and he said that the short bolts are 43flbs and the long are 46 lbs and then a 90degree turn after that.......I'm just going to take it back to them to do it..........does that seem right or is that way they came loose?
Like Mr Whalen said, that's a load of crap. DO NOT take another engine to that builder, they have no idea what the heck they're doing.
With a copper gasket you need to remember that the bolts must be retorqued every once in a while to prevent leaks
fortune cookie say:
better a delay than a disaster.
