Posted by TimWafer on May 12, 2011 at 07:08:19 from (69.193.106.146):
Have a Wisconsin VH4D engine in my old skid steer. Rebuilt it a couple winters ago w/ new pistons & bearings & all. It’s been running super, far better than anytime since I owned it.
Last night however, I was using it and a strange hissing sound started. At first I thought it was a manifold exhaust leak somewhere, but on closer examination it appears one of the heads has a hairline crack across it just below the sparkplug. Haven’t removed the head yet but just wondering what the likely causes of this might be? I torque the heads to the specs and sequence in the manual.
Hadn’t used it that long or hard last night when it started.
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Today's Featured Article - Diagnosing Engine Difficulty - Diesel Tractors - by Staff. The following suggestions are listed for your assistance. You can make simple adjustments on your tractor that will improve its operation and save you the time and expense of hiring someone to do it for you. Always make one adjustment at a time, and if the adjustment made does not improve the condition, return to the original setting before proceeding to the next adjustment. Hard Starting Cold air temperatures. Insufficient fuel.
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