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Think I Blew My Engine

Old 01-23-19, 12:32 PM
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Think I Blew My Engine

85 GSL-SE. Parked it last night and the rubber floor mat forced the accelerator to the floor. Rpms pegged for about 5-10 seconds before I was able to get to the floorboard to remove the mat.Started it this morning and heard a loud knock like a rod in a piston engine. Knock ceased in about 15 seconds. Now it won't idle and skips and runs at about 50% of normal performance.
Did I take out my apex seals? Any ideas on where to start trouble shooting? Could I hopefully damaged the ignition system? Any tips will be appreciated.
Thanks
John
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Old 01-23-19, 12:57 PM
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Do a compression test. If you don't have a rotary tester a regular one will suffice you just have to look for the 3 bumps for each apex seal.
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Old 01-23-19, 01:22 PM
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will do .
thanks
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Old 01-28-19, 09:58 AM
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I had a similar issue, and motor wasn’t blown
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Old 01-28-19, 10:12 AM
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Just had a compression check. front rotor 25 lbs psi on all 3 bumps front rotor. rear rotor 10 lbs psi on all 3 bumps. Not good.
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Old 01-31-19, 04:59 PM
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That sucks..
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Old 02-01-19, 10:24 AM
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Originally Posted by grotto107 View Post
Just had a compression check. front rotor 25 lbs psi on all 3 bumps front rotor. rear rotor 10 lbs psi on all 3 bumps. Not good.
It is really strange for both rotors to show such low compression due to one incident on a stationary NA .
Was the throttle being held open during the compression check?
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Old 02-01-19, 01:43 PM
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Also disable the fuel pump for this test.
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