Re: How hot does a C200 manifold get?

Posted by John G. Hasler on June 10, 2012 at 18:32:48 from (174.124.19.11):

In Reply to: Re: How hot does a C200 manifold get? posted by rustred on June 10, 2012 at 17:54:03:

> obviously you have never seen a manifold on a
> working tractor at night. they get chrry red.

I have. Some get hot enough to show red in the dark but not in daylight or twilight. That"s about 400C. Brazing alloys don"t melt below 840C. That"s red in sunlight.

> there is special welding rod for
> manifolds.

You can"t weld without melting the workpiece. I can"t see how that is not going to result in the formation of a band of white iron (and indeed what most welders have been telling me is "I can try to weld it with nickel rod. Sometimes it works, sometimes it doesn"t".)

> brazing on exhuast is not recommended.

I wouldn"t braze the exhaust headers on a race car, but then they aren"t likely to be cast iron.

Replies:

• Re: How hot does a C200 manifold get? rustred 20:06:15 06/10/12 (0)

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