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post #1 of 3 Unread 01-06-2020, 09:21 PM Thread Starter
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Join Date: Jan 2020
Posts: 2
XUV 550 issue


I am new here and found the forum as a result of recently acquiring a 2012 XUV 550.

The Gator was used on a ranch, where they forgot to check the oil. They were told the engine was seized and that it would cost $1,600 for a replacement, so they let it sit for a couple of years.

I bought it as-is and drug it home. I drained the fuel, dropped-in two new plugs, a new battery and some Lucas synthetic oil. It fired right up with no rod knock, or any other weird noise(s) I anticipated.

However, with the air box and filter removed, if you hold your hand just above the carburetor throat when it is running, you can feel a slight bit air on the exhaust stroke. And, a little bit of light vapor/smoke upon deceleration. Is this normal for a CA emission rig? Maybe the valves sustained damage, if indeed, they ran it with little or no oil for too long?

Then engine is the Briggs / Vanguard #355447. I have yet to find a service manual for it.

Any input would be greatly appreciated!
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post #2 of 3 Unread 01-07-2020, 03:26 PM
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Join Date: Nov 2014
Location: PA
Posts: 687
Do a compression or preferably a leak down test and report what you find.

2012 JD855D OPS Black Poly Roof, Deluxe Cargo Box, Front and Rear Protection, Power Lift, Front Hood Rack, Rear Screen (homemade), 800 Watt Inverter, 2500lb Winch installed in cargo bed, Front and Rear LED auxiliary lighting (4" square 27 watt), Front and Rear CV Guards, Koplin Side Mirrors
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post #3 of 3 Unread Today, 10:01 AM Thread Starter
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Join Date: Jan 2020
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Originally Posted by 200mph View Post
Do a compression or preferably a leak down test and report what you find.
Compression was 150lbs in each cylinder.

While investigating further and since the engine sounded and idled normal with no odd noises, I let it warm up for a bit. While doing so, I noticed more and more smoke that appeared to be coming from the left-front side of the engine, near or below the cylinder cooling fins. I didn't have time to take it apart any further, but I suspect this is why someone thought the engine was damaged.

It may simply be a gasket leaking oil. Fingers crossed.

Are the case gaskets known to leak?
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