Small Engines (Lawn Mowers, etc.): kubota d1105 run on diesel and gas mix, crankcase oil, gas diesel

Question
QUESTION: My toro mower with a Kubota d1105 diesel was run on diesel with gas added by mistake--50%--engind run and died--sat for 4 years--drained all fluids and filled new diesel--no start--fuel shoots 3 feet out of injector pump--when engine is cranked no smoke--nothing on starting fluid either--shot air into cylinders and can here it in dip stick hole--could gas mix wreck rings?--Could rings dry out over 4 years-- What else could gas mix wreck--thanks

ANSWER: Hello George:

>>Diesel Engines Use the Extra Oil for Ring Lubrication Similar to the Way 2 Cycle Engines Do.
>>If this Engine Set for 4 Years, then Most Likely the Problem is the Rings have Stuck/Frozen to the Pistons and are Not Flexing.
>>Remove the Injectors and Try Filling Each Cylinder with Marvel Mystery Oil and Allow to Set Overnight. Do this for 2 or 3 Days. Drain and Refill with Crankcase Oil.
>>With the Injectors Removed Turn the Engine Over Several Times to Clear the Cylinders of Any Excess Marvel Mystery Oil.
>>Install the Injectors and Try to Start the Engine. You can Try Starter Fluid if you have No Response from the Engine with the Regular Starting Procedure.
>>If the Engine Still has No Response, then a Re-Ring May be  Required to Correct the Problem. You can Also Check for Cylinder Damage when Performing the Re-Ring.
>>Usually the Gas/Diesel Mixture will Not Damage the Cylinders, but it can Happen if the Engine was Under a Hard Load at the Time it Quit Running.
You can View a Breakdown of this Unit at this Site Addy; http://www.kubota.com/f/support/Parts.cfm and Select Quick Reference - Parts Look-up. Now Fill Out the Information Requested to go to the Breakdown for this Unit.
>>Please, Do Not Hesitate, If you Hit a Snag, if I Missed Something or this Does Not Correct the Problem, I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Thanks.

Good Luck

Respectfully

John

>>PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Comments and Ratings are Greatly Appreciated. Thanks.

Respectfully

John


---------- FOLLOW-UP ----------

QUESTION: Hi John--Put atf into cylinders for 2 weeks and moved the pistons around--have 170 lbs--20 lbs--200 lbs in the cylinders--when I put air into the cylinders with the valves closed I could hear air leaving through the push rod holes--exhaust and intake were quiet--what would cause the big difference in lbs--This diesel engine died on a 50% gas/diesel mixture--how can the rings leak so much--how many lbs should these cylinders have--thanks for all your help--George

Answer
Hello Again George:

>>According to the Compression Readings you Showed me, you have a Major Problem with the Center Cylinder.
>>The 170 and 200 PSI Readings are Good but the 20 PSI is No Way Near being the Correct Compression.
>>The Compression should be Between 170 and 200 PSI with the Engine Cold. Once the Engine Starts using the Glow Plugs, the Compression can Reach as High as 500 PSI.
>>It Appears that the Rings on the Center Cylinder have Stuck/Frozen and the ATF had No Effect in Assisting them to Loosen from the Piston and Begin Flexing again so the Compression is Still Low on that Cylinder.
>>Please, Do Not Hesitate, If you Hit a Snag, if I Missed Something or this Does Not Correct the Problem, I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please and as Always, May the All Mighty Bless You and Yours. Thanks.

Good Luck

Respectfully

John

>>PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Comments and Ratings are Greatly Appreciated. Thanks.

Respectfully

John