Eligrah Posted September 12, 2016 Report Share Posted September 12, 2016 Hi there, got a Lister st 3 when hot you remove the caps over the rocker covers and get excessive smoke and pressure, will this be caused by piston ring blow by, and worn valve guides only when hot! many thanks Liam Link to comment Share on other sites More sharing options...
RLWP Posted September 12, 2016 Report Share Posted September 12, 2016 Possibly. If you remove the rocker covers, each head has a pipe that stands up over the inlet port. This is the engine breather and needs to be clear. You can unscrew the breather tube and clean it out Apart from this, how is your Lister? Richard Link to comment Share on other sites More sharing options...
Eligrah Posted September 12, 2016 Author Report Share Posted September 12, 2016 Hi Richard, mines fine thanks this is a friend of mines, I will try that, if not might look into a top end overhaul, engine is abit smokey and fins on the bores look to be well clogged up Liam Link to comment Share on other sites More sharing options...
RLWP Posted September 12, 2016 Report Share Posted September 12, 2016 Probably a bit tired then Richard Link to comment Share on other sites More sharing options...
Eligrah Posted September 12, 2016 Author Report Share Posted September 12, 2016 Just abit yes, will try what you have said but could more than likley do with a top end overhaul Liam Link to comment Share on other sites More sharing options...
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