Re: 4 liter rxhaust manifolds.

On 7/28/2021 7:03 PM, Clare Snyder wrote:
> Any experience removing exhaust manifolds on 4.0 OHV Ford Ranger? They
> have 10mm heads. I "gently " tried on this afternoon - appeared VERY
> TIGHT. Fo I heat the heads, soak with penetrant, use an impact, or
> combination of any 2 or 3? What are the chances of breaking the bolts
> since the reason I need to remove them is to replace broken exhaust
> studs. What size are the manifold bolts?? All the dealer could tell me
> is they are about $18 each and there are 12 of them. Also what size
> are the exhaust studa. They were less than 6mm thick when I attempted
> to remove them.

Not the same vehicle but the same problem, "Ford F700 Project - Exhaust 
Manifold Leaks (Gas Engine) - Part 1"
    https://www.youtube.com/watch?v=LuzhRcoD1jA

Youtube is a good XXXX great place to see videos of many problems.

Lynn