cloggy Posted July 15, 2011 Report Share Posted July 15, 2011 Well im stumped at the moment. Engine runs fine under load (in gear), but every now and then when in neutral the bugger starts to run away with itself. Any advice greatfully accepted. Cheers Cloggy Link to comment Share on other sites More sharing options...
steamraiser2 Posted July 16, 2011 Report Share Posted July 16, 2011 I would not be surprised to find that you have an air leak in your fuel system. This can cause "hunting" which can be quite pronounced. 1 Link to comment Share on other sites More sharing options...
Sir Nibble Posted July 16, 2011 Report Share Posted July 16, 2011 Well I'm damned, I could have sworn I'd answered this once. Oh well. I have seen several engines, mostly Gardners, self destruct this way. Do you have an oil bath air filter? Check it's not overfilled. Likewise the sump. Link to comment Share on other sites More sharing options...
cloggy Posted July 16, 2011 Author Report Share Posted July 16, 2011 Thanks for the thoughts. The air filter is an oil bath but not over filled likewise the sump but was until i did an oil change and checked filter. As for air getting in to the line, you could be right have just re braised one of the fuel lines but am not 100% happy with it, was thinking of starting again with a new line so theres every chance thats what it is. Once again many thanks and any other ideas greatly appreciated. Cloggy Link to comment Share on other sites More sharing options...
Sir Nibble Posted July 17, 2011 Report Share Posted July 17, 2011 Thanks for the thoughts. The air filter is an oil bath but not over filled likewise the sump but was until i did an oil change and checked filter. As for air getting in to the line, you could be right have just re braised one of the fuel lines but am not 100% happy with it, was thinking of starting again with a new line so theres every chance thats what it is. Once again many thanks and any other ideas greatly appreciated. Cloggy Air in the fuel line allows the governor to muck about because it should run immersed in fuel. Unfortunately this is not applicable to a Gardner pump. Oil bath filters being only slightly over filled has probably wrecked more gardners than anything else, they are not used on marine engines because even a slight rocking can cause the engine to ingest oil from the filter and bingo you have a very expensive cargo of scrap. Remove it, fit a dry filter. Link to comment Share on other sites More sharing options...
Timleech Posted July 17, 2011 Report Share Posted July 17, 2011 Air in the fuel line allows the governor to muck about because it should run immersed in fuel. Unfortunately this is not applicable to a Gardner pump. Oil bath filters being only slightly over filled has probably wrecked more gardners than anything else, they are not used on marine engines because even a slight rocking can cause the engine to ingest oil from the filter and bingo you have a very expensive cargo of scrap. Remove it, fit a dry filter. I can see your point, but Listers H series (and possibly others) marine engines came with oil bath cleaners as standard Maybe a different less vulnerable design of filter, dunno. First thing I would check is whether the fuel pump rack moves completely freely over its whole travel. Also check that the buffer spring, in the box on the end of the pump which contains the excess fuel button, is adjusted properly by the book. Tim Link to comment Share on other sites More sharing options...
Sir Nibble Posted July 21, 2011 Report Share Posted July 21, 2011 I can see your point, but Listers H series (and possibly others) marine engines came with oil bath cleaners as standard Maybe a different less vulnerable design of filter, dunno. First thing I would check is whether the fuel pump rack moves completely freely over its whole travel. Also check that the buffer spring, in the box on the end of the pump which contains the excess fuel button, is adjusted properly by the book. Tim Or a different less vulnerable design of engine, I also dunno. What I will tell you, though it is hardly comforting is that when this does happen and the engine, to quote the Gardner manual "attains a destructive speed" it is very very alarming. Link to comment Share on other sites More sharing options...
mrsmelly Posted July 21, 2011 Report Share Posted July 21, 2011 Or a different less vulnerable design of engine, I also dunno. What I will tell you, though it is hardly comforting is that when this does happen and the engine, to quote the Gardner manual "attains a destructive speed" it is very very alarming. Bin the antiquated pile of crap and get a Beta, Job done no more messing about and time for the pub Link to comment Share on other sites More sharing options...
Sir Nibble Posted July 21, 2011 Report Share Posted July 21, 2011 Bin the antiquated pile of crap and get a Beta, Job done no more messing about and time for the pub Who was that masked man? Link to comment Share on other sites More sharing options...
RLWP Posted July 21, 2011 Report Share Posted July 21, 2011 Who was that masked man? Some bloke who keeps walking past on his way to empty his cassette toilet Richard Link to comment Share on other sites More sharing options...
Gibbo Posted July 21, 2011 Report Share Posted July 21, 2011 Link to comment Share on other sites More sharing options...
Sir Nibble Posted July 22, 2011 Report Share Posted July 22, 2011 Deep Gibbo. Deep. Have you just made a profound philosophical statement or just fu<ked up? Link to comment Share on other sites More sharing options...
cloggy Posted September 12, 2011 Author Report Share Posted September 12, 2011 Just a quick thanks for the advice from here and various other sources, at the end of the day itseemed to come down to a simple adjustment on the pump. Just goes to show, I should have started with the simple things first instead of trying to over complicate it. As for the comment about the Beta engines i do quite like there tug engine Link to comment Share on other sites More sharing options...
MtB Posted September 12, 2011 Report Share Posted September 12, 2011 Just a quick thanks for the advice from here and various other sources, at the end of the day itseemed to come down to a simple adjustment on the pump. Just goes to show, I should have started with the simple things first instead of trying to over complicate it. As for the comment about the Beta engines i do quite like there tug engine I took out my Beta tug engine last year and sold it. Ghastly engine. Pushed the boat along well enough but had zero personality and sounded like a bus. Replaced it with a Kelvin. Devine! Link to comment Share on other sites More sharing options...
steamraiser2 Posted September 13, 2011 Report Share Posted September 13, 2011 Kelvin?????????? make good sinkers for mooring buoys Link to comment Share on other sites More sharing options...
Timleech Posted September 13, 2011 Report Share Posted September 13, 2011 Kelvin?????????? make good sinkers for mooring buoys OI!, Some Kelvins are good (My boat has an R6, so I have to say that ) Tim Link to comment Share on other sites More sharing options...
soldthehouse Posted September 13, 2011 Report Share Posted September 13, 2011 OI!, Some Kelvins are good (My boat has an R6, so I have to say that ) Tim Still got that big lump in there then Tim time you had one of these Link to comment Share on other sites More sharing options...
Timleech Posted September 13, 2011 Report Share Posted September 13, 2011 (edited) Still got that big lump in there then Tim time you had one of these This is what it had originally, bit thin on the ground now though 3 tons for 54 bhp. Tim Edited September 13, 2011 by Timleech Link to comment Share on other sites More sharing options...
soldthehouse Posted September 13, 2011 Report Share Posted September 13, 2011 This is what it had originally, bit thin on the ground now though 3 tons for 54 bhp. Tim Wundercrump! Still got that Mclaren if you are interested Link to comment Share on other sites More sharing options...
Timleech Posted September 13, 2011 Report Share Posted September 13, 2011 (edited) Wundercrump! Still got that Mclaren if you are interested Thanks Stuart. I'm committed now to a 4LW with hydraulic drive. Spent the rest of my inheritance on the hydraulics . The engine's just a pile of bits at the moment, though, has been for months. More hours/energy in the day needed! Tim Edited September 13, 2011 by Timleech Link to comment Share on other sites More sharing options...
soldthehouse Posted September 13, 2011 Report Share Posted September 13, 2011 Thanks Stuart. I'm committed now to a 4LW with hydraulic drive. Spent the rest of my inheritance on the hydraulics . The engine's just a pile of bits at the moment, though, has been for months. More hours/energy in the day needed! Tim I know the feeling, only done 2000 miles on my bike this year its normally nearer 10000. your mug is still safe and will be delivered by hand someday!!! Link to comment Share on other sites More sharing options...
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