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P5 Engine

Old Marine Engine » Stuart Turner » P5 Engine « Previous Next »

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dragonrider
Member
Username: dragonrider

Post Number: 4
Registered: 06-2005
Posted on Monday, July 18, 2005 - 08:44 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

A friend has a P5. It has been overhauled, The Magneto rewired.Carb cleaned. But It will not start. Easy start wont work.Tried oil down S/Plug hole, Engine started. Ran a while stopped and wont start again. Any ideas anyone. Ps rewired my P66.to a single switch.all ok thanks to all who replied.
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jb_castagnos
Senior Member
Username: jb_castagnos

Post Number: 244
Registered: 07-2002
Posted on Monday, July 18, 2005 - 01:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Sounds like it may be low on compression, does it feel like it when pulling it over? It should have a good bounce when rocked against compression. If a two cycle has blow-by it kills the next intake stroke by filling the crankcase with exhaust.
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peterogborne
Senior Member
Username: peterogborne

Post Number: 256
Registered: 09-2002
Posted on Tuesday, July 19, 2005 - 07:56 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

My thoughts as well . Stuart Turners realy need good compression. When the engine was overhauled was note taken of the ring gap? Also the crankcase seals? I substitute synthetic seals to replace the original S/T ones.
If new rings were fitted it certainly helps to remove the cylinder glaze.....with a hone.

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