Reply To: TN 27 or TN 28 power head rebuilt

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November 15, 2020 at 2:57 pm #220898
LLOYD LAUTNER
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    Most of them still have good compression because they ran on 16:1 fuel oil mix and the primer seals went bad before the cylinders and rings wore out. What compression does your motor have? If it has 70-75 PSI it will start run and idle AOK. Best I ever measured on one was 77 PSI. I have some new old stock rings but never needed to use them. I don’t want to rebuild a powerhead, but I have the rings if you need them.