Changing 4020 manifold gaskets

gostate · May 27, 2016

we need to replace the manifold gaskets on a gas 4020. Any suggestions on how to go about it and not break off the bolts getting them out?

tim s · May 29, 2016

Spray it with your favorite penetrating fluid, mine is Kroil, smack them dead on the end with a hammer a few times, then try wiggling them back and forth a bit at a time...then hope it's your lucky day..If the heads are eroded drive a smaller socket on, some times a metric on works good, if it is eroded to the point of nothing left grind the head off and try to pull the manifold off over it,,keep it wetted down as you work on it...

Changing 4020 manifold gaskets

gostate

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tim s

Well-known Member

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