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Searching for replacement intake pipe ring seals for IO-360 EXP

mike3715

Member
After doing some cylinder work on an IO-360 EXP on my RV-7 (which started life as an IO-360 A1A, I believe), I'm in the market for new intake pipe ring seals.

The original seals have these measurements:
5.5mm diameter thick
55mm outer diameter
45mm inner diameter

Unfortunately, none of the following lycoming intake pipe ring seals from spruce match up:

LM72711
LM77569
LM12620
LM74712

Here is an image of one of the intake pipes that was press fitted into the intake manifold with an original seal after removal.

Any recommendations on finding 4 replacements? Thanks!
 
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