These engine don't have glow plugs and are designed to hand start-able. Thanks for all the other replies, these engines are so different to what I know, why do they need this to start, I did think it was very slow to start up compared to my bmc 2.52 but this is the first narrow boat engine I have looked at, all others have been in cabin cruisers. So it needs to be removed and ground in on both valve seats which may fix it? Hi, ah right thank you for explaining, when I had a look after he had put it back together and he started the engine, the smoke started to show coming from exactly there, not the exhaust but what looked like the left side of the mounting / leaver, I said I thought it might need grinding the valve seat but didn't realize there were two. My FR2 has the valves welded up in high-compression mode, which has given no problems with the engine and a complete absence of leaks. Even having done that, the cure may be temporary. The FR was the last Lister engine to have compression change-over valves and the design used is notorious for leakage problems.The only way to cure then is to remove all the sealing parts of the valve (which needs special pullers) and clean them and grind the valve seats. The assembly you've highlighted is a compressor change-over valve, used to change the compression ration for starting, By "smoking" do you mean that smoke is emerging from the valve, or that the engine's exhaust is smoky? I'm guessing the later. The engine is a Lister FR2 and it does have a decompressor, it's the small lever on the end of the rocker cover.
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