Exhaust? Help!
#1
Exhaust? Help!
Was driving my 87 4runner today, when all of the sudden it sounded louder, and not in a good way. It sounded like a playing card in a bicycle spoke. I limped it home and took a quick look. I removed the heat shield from the manifold and took a look. The exhaust manifold was rusty, but I diddnt see any visible cracks, however it was rusty and flakey looking. When running, I felt hot air coming out oc the side of the manifold. I assume the problem is the exhaust manifold, however I am not sure. Is there anything else this might be? Can they crack all at once like that? I had no previous signs. Is it safe on the car to drive like this?
Thanks
Thanks
#3
Registered User
By any chance are you missing the bellhousing bracket and clamp for the downpipe? If so, that can cause a sudden manifold gasket leak, happened to me. Especially if you are using one of Fel-Pros old-style gaskets that appear to be made of cardboard, as I was at the time.
I second testing all the manifold nuts, they shouldn't budge if you try to snug them up a bit (use a torque wrench so you don't over-do it and strip out a stud).
It's probably safe to drive a short distance if you have to, but fix it up asap.
I second testing all the manifold nuts, they shouldn't budge if you try to snug them up a bit (use a torque wrench so you don't over-do it and strip out a stud).
It's probably safe to drive a short distance if you have to, but fix it up asap.
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