Here's the formula for the best penetrating oil (from a Forum post I can't relocate):
The April/May 2007 edition of Machinist's Workshop did a test of penetrating oils where they measured the force required to loosen rusty test devices. Buy the issue if you want to see how they did the test. The results reported were interesting. The lower the number of pounds the better. Mighty interesting results for simple acetone and tranny fluid!
Penetrating oil .. Average load .. Price per fluid ounce
None ................. 516 pounds ..
WD-40 .............. 238 pounds .. $0.25
PB Blaster ......... 214 pounds .. $0.35
Liquid Wrench ... 127 pounds .. $0.21
Kano Kroil ......... 106 pounds .. $0.75
ATF-Acetone mix.. 53 pounds .. $0.10
The ATF-Acetone mix was a 50/50 mix (1 to 1 ratio).
try and get a small chisel and tap a straight line across the head of the Allen bolt so you can use a screwdriver but this will only work on a mild steel bolt
The broken bolt can be blown out by someone who knows how to use a torch - muffler-shop
The first step is to remove the manifold. If the bolt is sticking out, remove with a vise grip pliers or stud remover. If broke off flush, drill and extract with an easy out or try to weld a nut to it and turn out that way.
have you checked to see if there is any broken bolt on the manifold, or worped manifold, burnt manifold gasket
Remove your lower passenger side engine mount and you will be able to rock the engine back far enough for the fan to clear the manifold.
The 1995 Honda Odyssey exhaust manifold bolt torque specification is 45 pounds. The exhaust manifold bolts should be torqued in 15 pound intervals.
you will have to unbolt the exhaust pipe from the manifold pipe and then you unbolt the manifold pipe from the engine, remove old gasket and make sure both sides are clean of the old gasket and then install new gasket and bolt manifold back onto engine.
It will bolt on, but to answer your question, no.
eat it
28-33 ft lb
40 lbs
If it is like my 2000 Malibu V6, this housing is located behind the exhaust crossover pipe. This is the pipe from the front exhaust manifold to the rear exhaust manifold. If you remove the air intake ducts and and airflow meter, you will get a better view of the housing, the top radiator hose is attached to it. If you remove the exhaust crossover pipe, it will be a lot easier to remove this housing. I believe you can remove the housing without removing the crossover pipe, but it will be a little trickier, especially upon installaltion. The bolt sizes are either 10mm or 8mm, don't exactly recall. The bolt sizes on the exhaust crossover are 13mm, a deep socket is needed here.
Exhaust manifold torque is 25 lb/ft with anti-seize lube.