Hi guys, I am back on project and was hoping to wrap this up by the weekend, but have a problem. Riser elbow/ manifold aren't matching the rear pipe with flapper. ( Not sure what this is called). I'll try and attach some pictures. To tight to fit something up, and you have the reducer also which doesn't help. its 3" o.d off of the elbow and the rear tube is 4" o.d.
I could make it work but I would have to cut down the rear piece, but then I'd be destroying the check/flapper assembly.
My engine serial number is 6123990, its a 1982. The manifold is the aluminum type which I was able to salvage from a boat from 1987. I'll have to look back in forum I have that serial number somewhere. The elbow is very nice used one I found that mates up to it.
I am hoping I can get some help on the easiest solution.
Option one-
If I can swap out the rear flapper pipe piece with the one that was meant for this manifold assembly. First I'd need to find out what piece this is.
1- will I be able to get to the 2 small bolts to change it out. Maybe If I remove the heat exchanger? Not sure if it is blocked path to bolts. Was 2 bolts and a large O-ring.
2- Will the housing block the proper flapper pipe? The 1987 had a slightly different housing than the 82. I don't recall much difference, other than the lower engine mount holes are different. Mine has the wider hole centers.
Option 2-
Replace the manifold and elbow. Would be kind of a shame to get rid of this nice aluminum manifold. I had the flange face tig welded and machined. The piece is in really good shape, And the elbow is like new.
Thanks for the help, I'll see about getting pictures up.