Stuck Diesel

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Apr 1, 2011 | 11:42 PM

hooder37

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8th Gear

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Stuck Diesel

'88 F-350 Diesel nat. aspirated, Manual Trans. Engine will turn 90 deg then stuck. I removed the injectors a couple of weeks ago and put Marvel Mystery oil in the cylinders, but the engine still will not turn past 90 degerees. Any suggestions?

Apr 1, 2011 | 11:51 PM

Plain Jane

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withdrew my post

Apr 2, 2011 | 01:06 AM

89_f150_mudtruck

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maybe it broke a valve and the valve is now hitting the head when the piston comes up

Apr 2, 2011 | 10:42 AM

CWPottenger

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Yep sound like a broke valve or connecting rod.

Apr 2, 2011 | 11:02 AM

bashby

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From: Charles Town, W bygod Va

Take the valve covers off and look for loose rockers (bent valve) or signs of a broken valve. It could be a glow plug broken off and hitting the piston also. Probably may as well just pull the heads and see whats up.