SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: Willow Wog on May 21, 2010, 11:51:43 PM
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my roommates boat has a 460 in it that had a bad exhaust leak so we started pulling the headers and snapped 6 bolts off in the heads. I tried drilling and ez-outing a couple with no luck. so wensday I pulled the heads a took them to work and edm'ed out. got all the gaskets and im ready to reasemble tomorow. What I need to know is the torque spec and sequence?
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always done header bolts nice and tight with a 1/4 turn. i work for ford look up a few thing for you and found no specs. retorque after they get hot and cold fro a while
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http://www.mrwrench.com/V8-ford-torque-specs.html
That gives the sequence and the torque amount. Heads to block-140 but do it in 3 stages like 1.80 2.110 3.140
Exhaust Manifolds I torque to 35ft/lbs and I start with the middle bolts and work my way out.
This has never failed me yet! Good luck.
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thanks guys
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The proper method to dealing with Ford problems is to remove the 8 bolts holding the engine into the boat, pull the engine out of the boat, find an acceptable sized dumpster, deposit said motor into dumpster. Add Chevy. Problem solved >:D
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The proper method to dealing with Ford problems is to remove the 8 bolts holding the engine into the boat, pull the engine out of the boat, find an acceptable sized dumpster, deposit said motor into dumpster. Add Chevy. Problem solved >:D
Oh Stop it! LMFAO! ;D
Problem I had with Moo's headers (Way to big of tubes to get a decent wrench on most of the bolts) was finding them later in the bilge after a hard days running. Some were just loose, they couldn't fall out (all the bolts, save a couple, had to be put on together and tighted simultaneously). I've been told NOW they are blower headers, Whatever THAT means.
I Was putting red loctite on them each time I found one or two and tightening them as best I could. Over last year, I think I managed to get them all.
Ray
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Heat melts locktight
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If you don't want your headers to come loose put in longer studs and double nut them.
Period. No more coming loose. ;D