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Tappets 2LW


mark99

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Thanks for the info - I set and rechecked them - pretty happy with the settings now.

 

I did run her without top cover before adjustment and after and the noise is less now but not totally gone. If you look at the photo below one of the valve rockers (third from left) has no real groove extending down to dispense the oil down to that valve like the other three.

 

This valve top was quite "dry" too.

 

IMAG2660_zpsd969a2a4.jpg

 

 

I syringed clean oil all over valves and top of adjuster nuts but it made no real difference.

 

The tappety noise seems to fade and then get louder then fade a bit.

Edited by mark99
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The tappety noise seems to fade and then get louder then fade a bit.

 

I have something similar with my 4LW, some days it does it, other days not.

It is much quieter since I replaced the worn fuel pump tappets, though.

 

Most LW rockers that I have come across don't have that oil groove, I assume it's a later design modification. I wonder whether they should only be used on exhaust valves, as using them on inlets must surely exacerbate smoking? Martyn?

 

Tim

 

Tim

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I have something similar with my 4LW, some days it does it, other days not.

It is much quieter since I replaced the worn fuel pump tappets, though.

 

Most LW rockers that I have come across don't have that oil groove, I assume it's a later design modification. I wonder whether they should only be used on exhaust valves, as using them on inlets must surely exacerbate smoking? Martyn?

 

Tim

 

Tim

 

i think that the grooves are an illusion created by the photograph and the fact that Mark has hand oiled everywhere.

 

Inlet on No1 appears to have a groove but Inlet on No 2 does not

 

The amount of oil being delivered to each end of the rockers is controlled by the width of the flat with any excess draining of the sides.

 

Steve

Edited by Split Pin
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Sounds like what I need is a Gardner expert to come and service/check the engine. Anyone near Harefield/Uxbridge where I keep her?

Hi Mark.

 

Pete ? at P&E Marine Croxley, very reliable fixed my mate's Ruston and another's Kelvin - both needed careful work.

 

Let me know if you want more details.

 

M

Edited by LEO
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i think that the grooves are an illusion created by the photograph and the fact that Mark has hand oiled everywhere.

 

Inlet on No1 appears to have a groove but Inlet on No 2 does not

 

The amount of oil being delivered to each end of the rockers is controlled by the width of the flat with any excess draining of the sides.

 

Steve

 

I've seen rockers with oil grooves on other makes of engine, and Mark does mention them so I assumed they were real rather than illusory.

Mark?

 

Tim

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Should this be John at P&S, if it is Jim's Kelvin you are thinking about?

 

Chris G

 

Chris,

 

Thanks, you are right, It had been a long day! John Pattle is the bloke you want guy you want Mark, a very clever bloke (P&S Marine Croxley).

 

Mike.

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Cheers lads Croxley is very close and a nice run. I'll look into that.

 

I'm not near the boat at the mo but will lift off the lid and have another look at the "groove" during the week.


Here's a short vid annoyingly it's inconclusive re the groove. (NB the noise is not present here).

 

http://s844.photobucket.com/user/mark99_2010_01/media/VIDEO0073_zps7e62dc14.mp4.html

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  • 2 weeks later...

 

i think that the grooves are an illusion created by the photograph and the fact that Mark has hand oiled everywhere.

 

Inlet on No1 appears to have a groove but Inlet on No 2 does not

 

 

 

 

Correct, non of the arms has a groove - just an illusion - I've just checked. Thanks!

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Anyone know why the inside of the cylinder head was painted with red oxide?

 

To make it look pretty?

 

Alternatively, it used to be quite normal for some castings (eg engine crankcases or gearbox casings) which needed to be oil-tight to be painted internally, with some sort of special paint, to seal them in case there was any incipient porosity.

 

I don't think Gardners routinely painted the insides of their cylinder heads, though.

 

Tim

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to help reduce the smoke perhaps, is there a 2Lw that does not smoke?, even the MPS ones smoke though they claim they dont

 

Short video in 1st post on this thread

 

 

http://www.canalworld.net/forums/index.php?showtopic=62539&hl=%2Bsummer+%2Bdays

 

or use this direct link

 

http://s844.photobucket.com/user/mark99_2010_01/media/Untitled2_zpsadeb4528.mp4.html

 

 

2LW - not much smoke. Once all fully warmed smoke is hardly noticeable.

Edited by mark99
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to help reduce the smoke perhaps, is there a 2Lw that does not smoke?

 

The Paints to seal the casting for stray sand etc. (most Gardners were painted inside the heads but not all)

 

 

even the MPS ones smoke though they claim they dont

Thats because when freshly rebuilt and set up they dont any where near the levels that most others pass off as acceptable..... A little smoke when stone cold for a LW is to be expected but the Gardners smoke excuse gets used alot to cover up worn out ones which smoke like a pig even when hot. Selection of video links of 2's, 3's and a 4 after rebuild with little to no smoke from cold, oh and some obvious new year engine porn ;0).

 

2 LS Kromhout (Essentially a LW, entirely the same top end and fuel gear) Linky

2 LW Gardner (taken from cold at below freezing temps) Linky

3 LS Kromhout Linky

4 LW Gardner Linky

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to help reduce the smoke perhaps, is there a 2Lw that does not smoke?, even the MPS ones smoke though they claim they don't

 

 

Which engine? which boat? when?. The only Gardner or Kromhout that we have ever had a smoke report about was one where the owner has terminal gerfingerpoken and has ruined his engine as a result ( Some numpties just don't deserve them frusty.gif ) So I would be intrigued to know which of the dozens we have done apparently smokes? Can't imagine for a moment that the owner would not have been in touch.

 

One of the reasons many Gardners are prone to smoke is because they are set up to the Gardner timing marks. These are often incorrect. We always time our engines using clocks and by measurement which , added to the fact that our engines are blueprint built, leads to clean exhausts. Hence my interest in which engine Fred?icecream.gif

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