I welded up the E34 oil pan for my 4dr, but I bolted it to an old 24v block while I did as much of the welding as possible.
I sealed with the stock (rubber+metal) gasket, but with block/pan faces cleaned up and scuffed with green scotchbrite & acetone.
I used red RTV (lol) on my silver car and it hasn't leaked in the past 6 or 7 years.
I used ultra grey on my 4dr with the welded pan, and we'll see how that works whenever I finish it.
I agree that hondabond/FIPG > Ultra grey > black RTV > other RTV, but I just use whatever is open, clean everything well, and wait an hour before cranking down.
I sealed with the stock (rubber+metal) gasket, but with block/pan faces cleaned up and scuffed with green scotchbrite & acetone.
I used red RTV (lol) on my silver car and it hasn't leaked in the past 6 or 7 years.
I used ultra grey on my 4dr with the welded pan, and we'll see how that works whenever I finish it.
I agree that hondabond/FIPG > Ultra grey > black RTV > other RTV, but I just use whatever is open, clean everything well, and wait an hour before cranking down.
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