question Lead replacement

[Maverick]

Hi Guys,

Where can I buy the mesh bags of pellets you put in your fuel tank for lead replacement ???

 

Thanks

[sirhc]

Not another one sucked in by this scam...!

[ferrettkitt]

Not another one sucked in by this scam...!

 

A nice magnet around the fuel pipe works beautifully so I've heard especially for the seller :cool2:

[CVRTNick]

I use a fuel add (Castrol Valvemaster Plus) in the M55 truck & C.V.R.(T)s,but as a diesel engine has no valves it shouldn’t need it.

[morris c8 fat]

Hundreds of the things on Evil-bay look under Austin Champ

[CVRTNick]

Correction you need Castrol Valvemaster Lead Replacement for a petrol engine with valves.

[Maverick]

Not another one sucked in by this scam...!

 

Am i missing something here???????

 

I own a diesel MV and dont know much about these pellets but have heard about them so I was asking on behalf of my father-in-law for his Jeep

 

Whats the problem ?????????

 

Thanks

Edited December 18, 2010 by Maverick
forgot to put "For his Jeep"

[griff66]

cause its aload of u know what!

[rog8811]

Didn't these pellets first appear in WW2?

I may be completely misremembering but I thought the russians developed them for use, initially, in RR merlin engines.

 

*EDIT*

I had a quick google and got loads like this....

The story of the Broquet Fuel Catalyst began in 1941 when British Hurricane fighters, given to the Russians to help in the war effort, ran into problems with poor quality Russian fuel. In fact the first sortie, by 134 Squadron on the 11th September 1941, nearly ended in disaster as the Merlin engines kept cutting out as the fuel started "waxing". Russian chemists working alongside British Merlin engine specialists developed a solid metallic fuel catalyst which stabilised the fuel and improved its combustion characteristics.

 

The catalytically treated fuel produced a cleaner and more efficient combustion enabling the Rolls Royce Merlin engines to operate satisfactorily. Whilst this significant achievement appears to have gone largely unnoticed, RAF maintenance records for the period do, indeed, confirm that a solid fuel catalyst was used in British aircraft in an overseas theatre of war. Use of the "Broquet" Catalyst was noted by The Daily Telegraph (6/12/93) as a means of overcoming fuel problems encountered by the RAF in 1941 on the Russian front.

 

Henry Broquet, one of the British technicians working alongside the Russians, brought the secrets of this discovery back to the West on his return from the front.

 

After the war Broquet continued with research on a tin-based solid fuel catalyst and commenced manufacture of a catalyst which was used to prevent the build-up of carbon and other deposits in combustion chambers and was used primarily in the marine industry fitted to the fuel lines of large diesel engines.

 

 

Edited December 18, 2010 by rog8811

[sirhc]

Am i missing something here???????

 

I own a diesel MV and dont know much about these pellets but have heard about them so I was asking on behalf of my father-in-law

 

Whats the problem ?????????

 

Thanks

 

They don't work! There is only one way to get lead in to your petrol, and that's to use a proper lead addative such as Castrol Valvemaster. Have a look on Google, there's plenty out there about them.

[antarmike]

Might as well buy a tin of baked beans for 15p and put them in the tank.......Cheaper and just as much use....

[mike65]

I have a tub of old lead shot fishing weights, they are at the stage where the lead rubs off on your fingers.

Will these be of any use?

 

 

Mike

[antarmike]

http://www.dft.gov.uk/pgr/roads/environment/leadreplacementpetrolphaseout

Will a "Fuel Catalyst" or other device enable me to run my car on unleaded petrol without damage?

A number of devices are commercially available which are claimed to provide protection to engines with soft valve seats when using unleaded fuel. The Department for Transport does not endorse specific devices and recommends that motorists seek independent test evidence to prove the effectiveness of any device before they purchase it.

 

This most likely translates as "no they don't bloody work"

[rambo1969]

Why would you want lead replacment for a diesel?

[R Cubed]

There is also research data regarding the rev range and how that effects the valve seats, if I can remember there is something about a dramatic increase in the damaged caused if the rev are above 2500 RPM. The data refers to running over 2500 RPM the wear caused is much more than running below 2500 RPM.

[trustmeimamechanic]

I use a fuel add (Castrol Valvemaster Plus) in the M55 truck & C.V.R.(T)s,but as a diesel engine has no valves it shouldn’t need it.

 

Thats a very strange diesel engine then ?.... I spent an hour adjusting the tappets on one friday :shocked:

[Amphibi boy]

Perhaps he is talking about a 2 stroke diesel!

 

As for the lead replacement addative, we used to use it in the army, cant remember the make, (will have a look, still have some in the shed)

[HotBed]

hi stu, i have been using Morris lubricants lead replacement additive, also available from jeep parts in my jeep for years, if i dont the needle sticks in the carb and floods all over the exhaust manifold :shocked: , i have also used Redex and had no problems with their products either

 

regards graham

[HotBed]

Why would you want lead replacment for a diesel?

 

i could nt read anywhere that maverick does ? :-D

 

regards

[Runflat]

The FBHVC recommended products are on their website along with other bumpf to do with fuel: http://www.fbhvc.co.uk/fuel-information/#f4

[rbrtcrowther]

I thought even two stroke diesels have an exhaust valve in each cylinder?

[Richard Farrant]

I thought even two stroke diesels have an exhaust valve in each cylinder?

 

Excepting the opposed piston types, such as Rootes TS3, Rolls K60 and Leyland L60

[Richard Farrant]

hi stu, i have been using Morris lubricants lead replacement additive, also available from jeep parts in my jeep for years, if i dont the needle sticks in the carb and floods all over the exhaust manifold :shocked: , i have also used Redex and had no problems with their products either

 

regards graham

 

 

Seconded Graham,

Morris's Superblend Zero 2000, being using it for ten years or so, ever since it came out top in the tests at MIRA ( ref. FBHVC ). I have supplied it to others in the past and no one I know has had any dramatic valve problems.

[John Pearson]

This old chesnut just keeps coming!

Just a few points:

Lead tetra-ethyl is not 'lead' and it is the tetra ethyl compound that was added to petrol to increase the octane rating ( or anti-knock ability) to get more power from a given amount of poorer quality fuel by using increased compression ratios or increased supercharging pressure. It worked but caused metallic carbon compounds to be deposited. They then added another compound (name I cannot remember!) to cause the lead compounds to flake off. They then found that this had the unintended effect of protecting the valves and seats by depositing lead compounds on the seat acting as a 'soft' seal and then it is renewed. In the late 50's, early 60s they then used this effect to achieve an increase in power in Jaguar E type engines etc etc etc because they could run higher rpm, earlier ignition timing and higher compression ratios, all of which increase power but also increase exhaust gas temperature which without the lead deposit/removal/replacement cycle will cause valve burning and valves recessing into the head and closing up valve gaps.

Now it is obvious that if nothing is added to the fuel then there is nothing to be deposited. If you add lead replacement compounds to fuel, they may well work but they are usually based on potassium or sodium compounds as lead tetra ethyl is almost 100% poisonous and carcinogenic.

Neither tin nor lead dissolve in petrol so if you put the 'beads' into the fuel tank and they do not dissolve (of course!) then it cannot have any effect can it?

 

Couple of other things:

If your engine was designed before about 1950, it was actually designed to run without valve protection compounds (although aero engines may require the anti knock increase). Up to 1960 or so, most 'ordinary' engines or military vehicles were still designed to run without lead.

Exhaust temperatures in all deisels are lower than petrol engines so the seats do not get so hot so they do not need the protection

Hurricanes run on petrol and petrol does not 'wax', it is deisel fuel that does that.

All 4 stroke deisels have valves but

2 stroke deisels have valves as well (well most do certainly!)

 

Don't waste your money on 'catalyst beads' they are a con!

[Maverick]

Thank you to thoses members who gave a sensible answer and backed up there answers with facts or experience

 

Looks like a choice of Morris lubricants or Castrol valvemaster