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What size expansion plugs for GT550 leak down?

Posted: Sun May 15, 2016 11:29 pm
by TRC
Building a leak down test kit but don't know what size expansion plugs I need for my for GT 550 intake and exhaust. Anyone know the sizes?

Thanks in advance!

Re: What size expansion plugs for GT550 leak down?

Posted: Mon May 16, 2016 2:03 pm
by GTandcbr
Just measured one of spare cylinders for you. 28 mm intake 41 mm exhaust.

Re: What size expansion plugs for GT550 leak down?

Posted: Mon May 16, 2016 3:22 pm
by TRC
Perfect, thank you!