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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 12-06-2009
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HELP PLEASE

Ok so I have a buddy that can port heads, so yesterday we did it and we misplaced one bolt. We misplaced one of the bolts that bolts the header to the heads. Where can i get one or hell even all of them if thats what i gotta do. I couldnt find them on a website so if anyone can find them and give me a link i would be much obliged. Idk how good it is for my truck to be riding around missin one bolt cause u can hear it when u accelerate sounds like a big exhaust leak.
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Old 12-06-2009
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you try rockauto.com?
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Old 12-06-2009
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Hit up the Ford dealer or a junkyard.


May I ask if you reused your head bolts? If so, you made a boo boo.
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Old 12-06-2009
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even simpler... take one of the bolts, was it a long one or a short one? then go into a supply store and ask if they carry a bolt like it... I changed all the bolts when i redid my motor by simply asking at a store that has bolts... guess what... they fit perfect.
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Old 12-06-2009
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yes we reused the head bolts i know its bad but i didnt wanna spend the money for new ones because i already have headers ordered for christmas and then i will be using new bolts and stuff
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Old 12-06-2009
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Why is it bad to reuse head bolts? Just curious because I have to replace one that broke anyway.
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Old 12-06-2009
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They're stretch-to-yield bolts....meaning they stretch when tightened and they are a one time use deal. Expect a bad head gasket sometime down the road.
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Old 12-06-2009
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its only been like that for a day. would it be better if i drove my sisters car until i can get new bolts?
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Old 12-06-2009
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*I think I butchered the name. It may be torque-to-yield.
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Old 12-07-2009
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You got it Shane, they are Torque-to-yield (TTY) bolts. ONE time use. They are $56 at the dealership. IMO, the $56 head bolts are cheaper than the new gasket set you are going to have to buy. I had to get new bolts for the exhaust manifolds too but I can't remember what size they are...
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Old 12-07-2009
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Did anyone give you a torque pattern to follow while tightening down these bolts? It is very important that you follow this, along with if the bolts need to be wet torqued or dry torqued. What I remember from doing a few engine rebuilds, head bolts were a one time use kind of thing... unless it was oh say a lawnmower, and it was always a wet torque. (meaning the bolt threads should be covered in a light amount of oil
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Old 12-07-2009
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just to clear things up i think there was confusion. I never took the head bolts out. so they dont need replacing. the bolts that i am talkin about are the ones that bolt the headers on. Went and ordered one at the dealership today for 17 dollars
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Old 12-07-2009
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Okay. Just confused on how you can do a good port-n-polish job without removing the heads...

Did you lose the stud? On my 4.0 they're studs with nuts that secure the exhaust manifold. Take a nut with you to a hardware store and match it up or simply go to ford, they might have it in stock. I think you'll be fine with one nut missing on both sides til you get a replacement nut.
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Old 12-07-2009
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It wasnt a professional job done to it lol. But yes it is the stud with the nut on it that is missing. I went to ford today and ordered one for 17 dollars. the service guy told me it be best not to drive it till i get it on there because he said it may warp the headers to where i cant get a good seal. Even though i got JBA headers already on the way to my house i dont wanna mess nothing up. Especially since i drive over 70 miles a day to school and back. He said it may be in tomorrow. Until then im in my little sisters Mazda 3 lol
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Old 12-07-2009
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Quote:
Originally Posted by Fx4wannabe01 View Post
Okay. Just confused on how you can do a good port-n-polish job without removing the heads...

Did you lose the stud? On my 4.0 they're studs with nuts that secure the exhaust manifold. Take a nut with you to a hardware store and match it up or simply go to ford, they might have it in stock. I think you'll be fine with one nut missing on both sides til you get a replacement nut.
yeah me too.. your expoust to take the heads off the truck and take the valves out and ect to do a good port n polish. im just wondering how many metel shavings went into the motor.

Last edited by Redrocket; 12-07-2009 at 07:39 PM.
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Old 12-07-2009
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^^yeah...no crap.

Quote:
Originally Posted by Henson View Post
It wasnt a professional job done to it lol. But yes it is the stud with the nut on it that is missing. I went to ford today and ordered one for 17 dollars. the service guy told me it be best not to drive it till i get it on there because he said it may warp the headers to where i cant get a good seal. Even though i got JBA headers already on the way to my house i dont wanna mess nothing up. Especially since i drive over 70 miles a day to school and back. He said it may be in tomorrow. Until then im in my little sisters Mazda 3 lol
I think you'll be fine missing one stud/nut for a little bit. They're cast manifolds and they are very stout. They won't bend or warp...they'll just snap in half. Only downside I see is possible gasket failure leading to a leak.
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Old 12-07-2009
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Im pretty sure he didnt get no metal shavings in there. idk how he did it but i asked him and he said no.
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