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-   -   HELP! Irvine .40 MKII really low compression (https://www.rcuniverse.com/forum/glow-engines-114/11667195-help-irvine-40-mkii-really-low-compression.html)

TampaRC 07-16-2019 02:48 PM

HELP! Irvine .40 MKII really low compression
I just got what appears to be an unrun engine, but the comp is really low. Its a ringed engine. Glow plug is tight. Its been a long time since I had a ring engine. Are they supposed to be like this?

Hobbsy 07-17-2019 02:23 AM

A little oil should bring it up to par, then a little running will make it great. It's very likely a Dykes ring and will always feel soft on compression.

Jesse Open 07-17-2019 11:56 AM

Run it. ;)
Should run fine.

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