Shim a MC Y-PIPE or 5200?

[tank1949]

I just got around examining a used y-pipe I purchased a week back. Pipe looks like it has been Fresh water used only. No corrosion at all! But, bolting surface has one lug that is not perfectly flat when bolting on transom assembly. One lower lug (not body) has about .003 gap between its surface and Transom assembly. The rest of the lugs and body touches transom assembly. I suspect factory defect. I could build up this area using epoxy paint and then sand down or shim with SS or just assembly with 5200 as sealant and forget about it. Any suggestions.

 

[achris]

The 'o' ring should take that up... If you're concerned about it, use either a good flat file or a brickie's float with fine emery and smooth it down, being careful not to remove any material in the 'undamaged' areas. Or you could set it up on a mill and machine it off.

Chris.....

 

[tank1949]

The 'o' ring should take that up... If you're concerned about it, use either a good flat file or a brickie's float with fine emery and smooth it down, being careful not to remove any material in the 'undamaged' areas. Or you could set it up on a mill and machine it off.

Chris.....

Unfortunately, I'd have to file or remove the good surface. The lug is slightly bent or casted back. The best I can mic it is .003. THX!

 

[achris]

If it's bent back, ignore it. The important thing is that the O ring seals. With the lug back, it'll seal no problem .. just don't overtighten the screws.

 

[tank1949]

if it's bent back, ignore it. The important thing is that the o ring seals. With the lug back, it'll seal no problem .. Just don't overtighten the screws.

thx!