1968Vitesse25
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4 sold? I've half a mind to ask the vendor for commission!
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Haven't seen any. 150's with that type of base. Worth asking the vendor. I suspect they are left overs from converting 175 SEVX carbs (lots of NOS ones about ex US spec TR7) to adjustable jet for older cars. ETA: they seem to have NOS 175's http://stores.ebay.ie/N-J-Will.....romberg&_sacat=0
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Take a large ball bearing and put a divot in the mating face of the flange, dishing the flange up under each bolt head. As you tighten down the bolts, the divots will flatten out giving you a true clamping face. Fit sump gasket with a bead of Hylosil 300 RTV no more sump leaks.
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Like these? Available on the bay of fleas http://www.ebay.ie/itm/STROMBE.....a:g:eYIAAOSwB4NW0fuf
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Your modern car will have a plastic fuel tank, all synthetic seals and no brass in it's fuel system.
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Unless the pitting is seriously deep, just spray some Blue Hylomar on the gasket.
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For breaking in an engine, you actually want a pretty 'poor' oil without all the Gucci modern anti wear additives to let the engine and most importantly the rings bed in. The ZDDP is to protect the cam during bed in. Most 'break in' oil is just that, a basic Dino oil with ZDDP.
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An engines an engine, it's the same principles. Coldest air in, hottest air out, We have a far better understanding of the physics, but it's all the same rules. Keep your coolant hot, but don't let your oil get too hot - and Triumphs pushrod engines have always had an issue with oil temperatures. A combination of a basically poor design stretched far to far and a domestic market that didn't force mass manufacturers to address oil breakdown during high speed running. German and Italian cars of the period were far more durable thanks to their markets need to run on Autobahns and Autostrada. Triumph were well aware their engines had issues with oil temperatures when they started fitting as standard or offering oil coolers as a dealer fitment for cars being exported to the Continent and the USA in the 1960's.
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I'm assuming you want the ZDDP to beef up your racing oil?
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On the Canley Classics catalogue, this is the factory installation for an oil cooler on a Spitfire. https://www.canleyclassics.com/triumph-spitfire-mkiv/1500-oil-cooler/
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Hi John, Germans love American motors. Shippings very reasonable. They speak English BTW. http://store.moparshop.de/en/P.....-Zinc-Plus-0-5L.html
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It has to be sold as 'for racing use'. Product liability and all that good stuff. It poisons catalytic converters.
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£15+ a litre?!?!?! I'll stick to 5 litres of Valvoline for £30
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So, can we get a fully synthetic oil with enough ZDDP?
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Modern mineral oil formulations are very different oils to the stuff sold in the 70's. http://content.valvoline.com/pdf/vr1_racing.pdf