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Discussion Starter · #1 ·
I recently purchased a later model Deere 345 Garden tractor. It has the FD611V engine. It was lower houred (540) and was in good cosmetic condition. When I purchased it smoked a bit, but owner said it was because it was sitting for a few days. I did fresh maintenance -oil, filters, etc., when I got home.
After running it for a few hours I am having the following issues. Burning about 1/4 quart of oil and 1/2 quart of coolant over the 3 hours. It smokes on startup, but isn't as noticeable after, but still some smoking. Smoke has a bluish white tint.
Did a compression test and both cylinders are at 120 psi. Did a leakdown test and left (thermostat side) is at 12% and right is near 0%. Left spark plug is cleaner than right. When I did leakdown test on left cylinder, oil came out of dipstick/fill hole.
Question: Would all problems be coming from left side head gasket? Could gasket be blown between cylinder and valve push rods thus causing the oil consumption and the oil coming out when pressurized with air?
I plan on tearing down soon. I am planning to do left side head gasket, as well as, valve cover gaskets and valve seals on both cylinders.
Any help is appreciated.
 

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Man, I hope the price reflected its issues and it wasn't sold as something it's not. It does appear to be a head gasket issue. I would do both personally at that hour level and then you'll know it should be solid for awhile.

Good luck getting it back up and running
 

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Discussion Starter · #6 ·
Did you check compression with the engine hot? That is how you should on these engines, and 170 is about the low end
Engine wasn't hot. I let it run for about 1 min, but not hot. I'll run a bit longer and check. I had read that I was looking for 160ish. But, knew that I had not let the engine fully warm.
 

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I checked with engine hot, and it was about the same, which is surprising.
Sounds like rings are not doing their job, that's unfortunate. On the plus side, these engines are pretty easy to work on, and it's worth repairing. I picked my 345 up with a seized motor, if you're even a little mechanically inclined, you should be able to do the repair.

Here's a link to my rebuild, I learned a bit about the motor as I went, and made a mistake enumerated in that thread, feel free to @ me with questions if you decide to dive in. @denverguy is really knowledgeable about these too.

 
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