Gardner 6LXB injectors

[Woodpile]

Hello all,

Although it seems to be running well, one of my 6LXBs is making constant white smoke. Having recently had a terrible bout of fuel filter clogging due to diesel bug, is it likely that crud has got through to the injectors as the most likely cause? If so, would any injector cleaner additive be a useful first step - or should I be looking for another cause?

Thanks for any advice.
Chris

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[milltech]

I don't pretend to have a clue, but I do remember reading that David Scott-Cowper on his lifeboat trip around the world had to have a new injector pump on one of his 4LW's due to adding an additive to the fuel, so I would recomend caution.

<hr width=100% size=1>John
<A target="_blank" HREF=http://www.allgadgets.co.uk>http://www.allgadgets.co.uk</A>

 

[milltech]

BTW does your handle mean you are the owner of an ex RNLB?

<hr width=100% size=1>John
<A target="_blank" HREF=http://www.allgadgets.co.uk>http://www.allgadgets.co.uk</A>

 

[Woodpile]

Hi John,

That's right, she's a 1932 Barnett - the ex-Barra Island boat, Lloyds.

http://groups.msn.com/lloyds/launch.msnw?action=ShowPhoto&PhotoID=57

Regards,
Chris




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[dip_lug]

Chris.

I agree with John and can only reiterate his recommendation for the use of caution .

I’m am also no expert, although I have a working knowledge of diesel engines having owned heavy equipment most of my life.

There are many additives “mechanics in a can” on the market. None of them are recommended by the manufacturers of the engines I’ve owned. In fact their usage would void the warranty.

There are a several causes for white smoke in diesel exhaust.

1) bad injector spray pattern (see further below)

2) At start up when the engine is cold and the fuel is not combusting completely. If the engine is in good condition the white smoke should disappear within several seconds to several minutes depending on temperature of the engine.

3) an inoperative glow plug(s)

4) late injection timing

5) injection pump problem

6) low engine compression.

Based on your posting I would guess that item ONE is probably the cause of the white smoke.

Crud, even a micro size water globule, can damage a spray nozzle because of the injector pump‘s high operating pressure. A fuel additive may or may not dehydrate water in the fuel system. In any event the fuel system should be purged, the water separator drained and the filter replaced. In all probability the injector or spray nozzle (depending on the type of engine) should be removed and inspected by a qualified diesel technician. Testing a the spay nozzle’s pattern requires specialized equipment not found in home workshops.

Considering the cost of parts for a diesel engine not to mention the importance of its reliability, I would look to a professional. White smoke is not caused by a properly running engine. It is certainly wasting fuel and may cause further damage to the engine.

Hope this helps.

Colin.

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[dip_lug]

Looked at your boat.

Chris.

I had a look at the photos of your boat. My compliments, you’ve done a beautiful job of the restoration. You’ll certainly never have any concerns about heavy weather!

Cheers…….Colin.

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[milltech]

She looks terrific, well done. Was she the one for sale in Northern Ireland? There was one I saw offered with a similar looking deck house.

I'm also looking for something to use single handed, so I think a Barnett is a bit too big for me. A Watson 47 I would really like, but I'm also looking at a couple of little Rothers.


<hr width=100% size=1>John
<A target="_blank" HREF=http://www.allgadgets.co.uk>http://www.allgadgets.co.uk</A>

 

[Woodpile]

John. Colin,

Thanks for the compliments - but I'm afraid I can only take credit for signing the cheques. All the hard work was done by Padstow Boatyard.

John, Lloyds was indeed the boat from N.I. - and if you are looking seriously to buy something, I'd recommend giving Quinton Nelson a call. You can find him at www.nelsonsboats.co.uk - he's very well connected when it comes to the old lifeboat fleet, and very approachable.

Cheers
Chris

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[milltech]

We are in fairly constant contact, so far I've offered on one and been refused, no make that two as there is a long standing negotiation into its third year elsewhere for another!

Quinton's just put up a "Rother" which I think is at a sensible price, except they don't have Gardners. Were you still "in the shed" at the time of the Fowey get together?



<hr width=100% size=1>John
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<P ID="edit"><FONT SIZE=-1>Edited by milltech on 25/09/2003 14:12 (server time).</FONT></P>

 

[Woodpile]

Well, if you haven't worn them down over three years, I'm sure they can't hold out much longer!

That Rother looks very interesting, too. Ideal for singlehanding, I'd have thought, and it looks as though there's a decent amount of space below. Are you looking for a boat to keep in original condition - or are you open-minded about conversions?

Sadly I missed Fowey because Lloyds was still in the shed. I arrived there in April and they said 'two weeks'... (Although to be fair I've had a bit more done than I planned!)

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[milltech]

I would like mine to look fairly original on deck, but I wouldn't beat my brains out over it, I'm not a purist, and I'd like some comforts below if only to keep warm.

The one I'd like to buy is just very expensive, and at a small guess there's £10,000 to spend this first winter which makes it even more expensive. If nobody buys it to take my pain away I will probably have a final "go" at the owner one day. It is and always will be my preferred boat because of the quality of its conversion.

<hr width=100% size=1>John
<A target="_blank" HREF=http://www.allgadgets.co.uk>http://www.allgadgets.co.uk</A>

 

[dip_lug]

...my analysis...

Chris.

Was my analysis of your diesel engine’s white smoke correct?.

Cheers Colin.

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[Woodpile]

Re: ...my analysis...

Hi Colin - can't tell you yet, as I've been away for a while and haven't pursued the matter. I shall be investigating further this w/e, but the pointers seem to back your assessment.

Cheers
Chris

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