Quote:
Originally Posted by DeltaCub
I disagree about leak down tests. Kohler and Briggs STRONGLY recommended leak down tests to check the integrity of the valves, cylinder and rings. Many small engines have a variation of an automatic compression release. This is done, for instance, by an Automatic Compression Release or ACR in Kohler "K" series during cranking. Others used a method of bumping the exhaust valve to release some compression. The latter method is not used any more due to enviromental concerns (Tier 1 or Tier2). The intake valve is now bumped during cranking. But that is another discussion. Leak down tests give a good overall picture of the integrity of the engine. 
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I'm sure Kohler and Briggs do recommend it. So does anyone else who makes engines. Ford, GM, even Jasper Engines want you to do leak down tests. Big hairy deal. I can't hear well enough to hear where the air is escaping, and a leak down test only proves a leak. A compression test will reveal that. I'm not going to debate the issue anymore. They are a waste of time.
The Kohler K series ACR DOES hold or "bump" the exhaust valve open.
Quote:
Originally Posted by bocephus1991
Yeah meant vertical, been working a lot to Jon! Think everyone's tired and worn out. Thanks for your input. I read somewhere else that the Briggs ohv engines are bad about blowing head gaskets between push rods and cylinder. Thanks again Jon !
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Your welcome!
I'm beat Bryan. Been doing like 14-18hr days for about 2 weeks.
Briggs isn't the only OHV that does it. The Kohlers do too.