Saturday, Oct 14, 2023 at 17:37
I presume the comp
test was done via an adapter screwed into the glow plug hole. Possibly the deteriorated glow plug end has refused to pass through the carbon ring around it and broken off and it is now in the cylinder.
Not good, but it still won't come out of the glow pug hole. I can't see how a piece of
test equipment would have a propensity to drop into the hole. Poor management if so.
If the piece is in the piston recess AND they tested compression, possibly no harm YET. But they can't start it otherwise it will jump about and smash injector or possibly bend valves. It might have already done that during the comp
test. It has to come out before further tests or running is done.
You definitely want to know and see yourself, the
test pressure readings and perhaps get someone else to view them and gauge engine compression condition. A comp
test after the recovery work would be wise.
Ask them if they added some oil to the cylinders for the
test. It can become fuel and fire, if light oil if thin enough, but anything added in there will mask poor compression lost past rings. I don't know what they did. Ask those questions so they know you know.
Which engine type is it? 1HZ?
You initially mentioned broken glow plug and also mention compression
test gear components. They should know exactly what is in there if genuine about it all. No question about it!
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