dougbgt6 Posted April 17, 2019 Report Share Posted April 17, 2019 Roger, Moss Europe London? My brother tripped over their disabled ramp, flat on his face, broken glasses, lots of blood and a broken finger. Set his Spitfire rebuild back months! Do you live in the area? Doug Link to comment Share on other sites More sharing options...
johny Posted April 17, 2019 Report Share Posted April 17, 2019 1 hour ago, RogerH said: I was in Moss -- Europe this morning and noticed that they sell the Dynolite range of oils and stuff. They do a VSR £8 for 250 litres of fuel and an octaone booster + VSR for £10 for same quantity Don't use it myself but it is there. Roger Thats not a bad price although Dynolite wasnt one of the VSR additives approved by FBHVC (however apparently all the various companies invited for testing had to pay for it themselves so some judged it to be uneconomical and declined.....) Link to comment Share on other sites More sharing options...
RogerH Posted April 17, 2019 Report Share Posted April 17, 2019 The dynalite product wasn't around when the tests were undertaken. Roger Link to comment Share on other sites More sharing options...
johny Posted April 17, 2019 Report Share Posted April 17, 2019 Cant find much info on Dynolite as to exactly what the lead substitute is (not supposed to mix different types) but have noticed that the product with octane booster works out rather more expensive than I thought as its 250ml for only 40L of fuel (25p a litre!). The Millers and Castrol equivalents at around 20 quid to treat 500L are much more economical.... Link to comment Share on other sites More sharing options...
GT6M Posted April 17, 2019 Report Share Posted April 17, 2019 Errr this ..lead memory.. I dont buy it, never seen any scientific proof bar what punted on forums. I no JK kem oot with this yonks ago, but how did He know then, nee rests done or owt, not even a lead replacement test. proof if any one can give it As for the valves dont wear, as can be seen by the mines ok brigade, yes thats true, if yer pintlin aboot all the time, give it some stik an see what happens, well documented on forums the tests done on VSR by the Federation of wot ever said that under 6K revs, wear was not a problem, after this 4K, wear was a problem, esp if it wer WOT an high rpms.use { foot,t,floor } 1 Link to comment Share on other sites More sharing options...
poppyman Posted April 17, 2019 Report Share Posted April 17, 2019 Absolutely spot on Marcus....... Foot down use additive otherwise no need. Tony. Link to comment Share on other sites More sharing options...
johny Posted April 17, 2019 Report Share Posted April 17, 2019 We're going round in circles here: 'unless you want to maintain standard timing and the engine pinks excessively (see test above) in which case you could use an octane booster which might as well include a lead substitute'..... Link to comment Share on other sites More sharing options...
dave.vitesse Posted April 17, 2019 Report Share Posted April 17, 2019 It all depends on want Triumph you have. Heralds, 1500 Spits 1500 Saloon, Toledo, most Dolomites and TR7 were all designed to run on the old 98 octane leaded fuel. Also the Dolomite 1850, Sprint and TR7 on unleaded fuel. Dave Link to comment Share on other sites More sharing options...
johny Posted April 17, 2019 Report Share Posted April 17, 2019 If theres no pinking then theres no need to use an octane booster either as an additive or a higher RON fuel in any of our cars. Remember the power available in the fuel isnt changed by its octane level..... Link to comment Share on other sites More sharing options...
JohnD Posted April 18, 2019 Report Share Posted April 18, 2019 The way you drive, Marcus, no amount of lead memory would preserve valve seats! But a weekend user, who gos on 'runs' could probably survive on it for years. Anyone would even touches the seats with a valve grinding paste will lose any lead memory at once. The safest solution is steel inserts, and at the price of lead replacement, they will pay for themselves quickly. John Link to comment Share on other sites More sharing options...
Badwolf Posted April 18, 2019 Report Share Posted April 18, 2019 How long would it have taken to build up 'lead memory' from the point of grinding in the valve seats. My engine was rebuilt in 1985 and would have covered maybe 7,000 miles before the demise of leaded petrol. Link to comment Share on other sites More sharing options...
RogerH Posted April 18, 2019 Report Share Posted April 18, 2019 7 minutes ago, Badwolf said: How long would it have taken to build up 'lead memory' from the point of grinding in the valve seats. My engine was rebuilt in 1985 and would have covered maybe 7,000 miles before the demise of leaded petrol. The 'lead memory' is simply a contaminated surface that stops the valve and seat welding together each time they close. With higher revs they close quicker and the impact forces are increased. The surface of both valve and seat get a microscopic coating of lead. In theory the contamination starts immediately so the lower of the damaging revs become less damaging. As the contamination increases then so the protection against higher revs improves. Sadly there is a limit to how high the revs should go. So, simple touring or shopping trips could see 10,000's miles use before the contamination is burnt or hammered away. Roger Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 18, 2019 Report Share Posted April 18, 2019 my hairy 1600 had recut seats and lapped vavles and driven like the wind for 14 years without a slightest sign of any recession and never a burnt valve. thats just on 97+ and def no addatives i did plan exhaust inserts but sold her and no idea if shes still raring to go or tootles my experience with many cars we keep rolling is theres more talk and myth that failures fill er up, drive and smile Pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted April 18, 2019 Report Share Posted April 18, 2019 Drive it till it breaks, then fix it. db Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 18, 2019 Report Share Posted April 18, 2019 echo that Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 18, 2019 Report Share Posted April 18, 2019 Doug has the chair materialised ??? new thread needed for that ??? Pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted April 18, 2019 Report Share Posted April 18, 2019 Pete, Nope. I've emailed again, but still no response. I'll wait a few more days, another email then involve Fleabay. Yes, maybe a TSSC thread will scare him into submission. Doug Link to comment Share on other sites More sharing options...
JohnD Posted April 18, 2019 Report Share Posted April 18, 2019 "Speak softly, and carry a big stick" Or, in this case, a feeler gauge a dn check the tappets regularly. John Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now