The jig, a 1/4" flat steel plate, kept the ports surprisingly true. The ports didn't need flat filing after welding.
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: I really don't know the effects of
: sandblasting on heavy castings like
: that re internal stresses, but it
: sounds like you have it fixed.
: If the flange is true, and it has the
: proper torque on it, if there was any
: problem with the repair it would have
: failed after not too many heat cycles.
: Good job!
: Glen
:
: --Previous Message--
:
: Forgot to mention I sandblasted the
: manifold which might have removed any
: internal stress caused by the welding.
: Maybe?
: --Previous Message--
: Guess it's an example of fortune favors
: the foolish. Running it hard and often.
:
: --Previous Message--
: No doubt did everything wrong but
: didn't
: have anything to lose. Jigged it. Cut
: through with a slightly beveled groove.
: Heated it. Mig welded 1/2 with
: stainless wire. Heated again. Mig
: welded 2/2. Buried it in sand to cool.
: So far the car is quiet and nothing has
: cracked yet. Fingers crossed.
:
: [img] [/img]
:
: --Previous Message--
: Throw it away and replace. Super common
: problem with those. Do not mount the
: intake manifold to it when you do
: replace it. I may have one, will have
: to check. Last time I had attempted
: this on a rare Pontiac SD455 manifold.
: It turned into a mess and not worth the
: effort even on a non replaceable rarity
: like that one was.
:
: --Previous Message--
: 68 spitfire Mk3: Been so happy since
: the
: pcv valve was sorted I knew Karma was
: out to get me... The front branch of
: the cast iron exhaust manifold cracked
: clean off. Anyone ever weld or had one
: welded? I can mig, tig or braze. How
: did you do it?
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