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Post by m40man on May 14, 2007 13:56:07 GMT
............. must be still available somewhere?? Anyone got a list of suppliers please? Or know one in Oxfordshire or Wiltshire? Know how much you should expect to pay? Is supply reliable? Or is LRP as good? And where that is sold? Finally, lead additives to today's petrol - a viable alternative? So many questions .... Thanks  . |
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Post by teejayexc on May 14, 2007 14:02:14 GMT
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Post by Welsh Ade on May 14, 2007 14:32:21 GMT
Martin
I was under the impression that good old 4* had ceased a few years ago and LRP had been discountinued last year.
Its now down to the additives in Halfords..
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Post by HRHpenfold on May 14, 2007 14:42:43 GMT
cmon we want pictures ;D
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Post by Deleted on May 14, 2007 14:54:07 GMT
4* now unavailable as far as I know. My young lad used additives to run his MG Midget seemed to work well with no problems. Certainly ran well enough until he sold it.
Dunc
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Post by apricot on May 14, 2007 15:05:27 GMT
I find standard 'Ron95' with a relay(1) works just as well as the old 'leaded' fuel. HTH Ady ;D (1) SPST for a twin, DPDT for an inline four  |
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Post by apricot on May 14, 2007 15:14:38 GMT
From a post on the 'smoking ban' thread:
"you're right TJ, little blue pills allegedly put lead in your pencil. "
Perhaps if you added a couple to a gallon of unleaded martin......
Ever helpful - double post Ady
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Post by m40man on May 14, 2007 15:21:17 GMT
Cheers Trev. It seems my nearest stockists are in Witney or Henley. Not too handy if you're running short .....  Naturally, I'd also like to thank all other contributors for their invaluable advice  . |
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Post by Welsh Ade on May 14, 2007 15:23:28 GMT
come on Martin spill the beans what have you got now
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Post by apricot on May 14, 2007 15:34:27 GMT
"come on Martin spill the beans what have you got now"I'm sure given Martins age, any beans he's got left he wont want to be spilling What have you bought now Mr M40Man?
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Post by 2old2boogie on May 14, 2007 15:50:40 GMT
Given Martin's penchant for old transverse V Twins.... Could it be a Moto Guzzi ? An old T3 that would require leaded to protect its valve seats! |
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Post by teejayexc on May 14, 2007 15:58:00 GMT
Given Martin's penchant for old transverse V Twins.... Could it be a Moto Guzzi ? An old T3 that would require leaded to protect its valve seats! Nearly spat me tea out then Jim, Thought you'd said Martin's penchant for old transvestites ;D Trev |
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Post by m40man on May 14, 2007 15:59:34 GMT
What have you bought now Mr M40Man? I'm sitting here mocking you remorselessly. As if I'd go out & buy summat BEFORE checking the availability of consumables . (No - Honestly, I'm not that daft.) |
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Post by CD on May 14, 2007 16:17:36 GMT
I heared that tetra-ethyl lead had no effect on valve seat wear. That was apparently a myth put out by the manufacturers to keep sales going. TEL was a cheap way of improving the octane rating. So if you need better than 97RON its down to additives from Halfords. Myths like valve seat wear are hard to shift. Though seats more likely to wear if low grade fuels are used as they can overheat the valves. en.wikipedia.org/wiki/Tetraethyllead, but does still hint towards the valve seat issue. www.runet.edu/~wkovarik/ethylwar/ |
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Post by General Gman on May 15, 2007 10:27:15 GMT
where did you hear this apparent myth ?
Lead does help to lubricate valve seats, along with giving a cheap hit on the octane rating.
anyone who tells you otherwise is an idiot or a liar.
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Post by 2old2boogie on May 15, 2007 10:42:47 GMT
I have always understood that lead as an additive to petrol was as an anti-knock agent, and as GM says above helps keep the valve seats healthy.
Thats why when lead was finally removed from petrol all the owners of classic machinery, 4 wheels and 2, were queueing up to have the valve seats sorted on their expensive machinery.
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Post by HRHpenfold on May 15, 2007 11:16:36 GMT
is this the same lead, that was removed from petrol, to counter global warming, so they could fit catalysts |
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Post by HRHpenfold on May 15, 2007 11:18:48 GMT
talking of lead, went to the scrap merchants and got £100 for all our scrap lead, then spent it in the pub Friday afternoon. got £70 for an old copper tank  |
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Post by m40man on May 15, 2007 11:31:02 GMT
got £70 for an old copper tank Helicopters in the 'drip drip drip' thread. Now tanks. Is there no escape from coppers for hooligan bikers . |
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Post by HRHpenfold on May 15, 2007 12:16:38 GMT
so what new bike is planned then ;D
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Post by 2old2boogie on May 15, 2007 12:22:37 GMT
talking of lead, went to the scrap merchants and got £100 for all our scrap lead
Your roof will leak if you've removed the lead flashing !
;D ;D
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Post by HRHpenfold on May 15, 2007 12:26:24 GMT
talking of lead, went to the scrap merchants and got £100 for all our scrap leadYour roof will leak if you've removed the lead flashing ! ;D ;D don't think of it that way, think of it as converting it to lead free ;D was scrap from roofing |
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Post by CD on May 15, 2007 14:11:21 GMT
where did you hear this apparent myth ? Lead does help to lubricate valve seats, along with giving a cheap hit on the octane rating. anyone who tells you otherwise is an idiot or a liar. The story rings true (like all good myths). I also have also not been able to find proof that lead actually protects valve seats. However as many know running low octane petrol in a high compression engine will damage the valves through excessive temperatures. Is this where the valve damage question really comes from? If the issue is valve lubrication then use Redex. I don't know. Has anyone got proof that old engines break without leaded petrol. |
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Post by derefood on May 15, 2007 15:46:35 GMT
I wouldn't use Redex to lubricate my valve |
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Post by CD on May 15, 2007 16:10:10 GMT
Might sting a bit and it rots rubber |
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Post by General Gman on May 16, 2007 7:31:40 GMT
where did you hear this apparent myth ? Lead does help to lubricate valve seats, along with giving a cheap hit on the octane rating. anyone who tells you otherwise is an idiot or a liar. The story rings true (like all good myths). I also have also not been able to find proof that lead actually protects valve seats. However as many know running low octane petrol in a high compression engine will damage the valves through excessive temperatures. Is this where the valve damage question really comes from? If the issue is valve lubrication then use Redex. I don't know. Has anyone got proof that old engines break without leaded petrol. It might ring true to the gullible, but lead really was used as a lubricant for valve seats.honest.As for low octane fuel in high compression engines, as long as you get the ignition advance correct it's not actually that much of an issue unless the compression is particularly extreme. Will try to dig out some of the ex-father-in-law's work to show the reasons why lead was used - he worked as a test chemist for Esso, specifically testing additives.TBH, only the oldest gnarliest engines would suffer terminally from a lack of lead in the fuel, anything post 1980 or so should be ok (apart from the earliest lean-burn engines) And while I'm on the subject, why do farts smell so bad ? |
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Post by Welsh Ade on May 16, 2007 8:05:51 GMT
Don't know why do sarts smell so bad but I can say with some certainty that chick peas make it smell even worse.
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Post by General Gman on May 16, 2007 8:13:25 GMT
Eating twelve tacos filled with Joolsy's mutha's special taco filling certainly does the job.
Gonna be a long 9 hrs in the car coming home today..... ;D
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Post by 2old2boogie on May 16, 2007 8:21:01 GMT
Feel for you Dave, feel for you mate! Tell Jools to sit in the back with the window open, should'nt be too bad if she directs her derriere at the window. |
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Post by HRHpenfold on May 16, 2007 8:30:21 GMT
i can assure everyone whose wondering, the lead in pencils is actually a mixture of graphite and clay, two diferent graphites, the mixture determines the hardness or softness of the pencil ;D
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