SENNA1 Posted December 21, 2009 Share Posted December 21, 2009 Hi guys, apart from the lead additive when refuelling the car,is it nessessary to add any special 'lead feeder' on the fuel lines/system? Thanks Quote Link to comment Share on other sites More sharing options...
Rick-Manta Posted December 21, 2009 Share Posted December 21, 2009 No, the lead only acts as a lubricant/heat guard for the exhaust valves, with a later or modified head (and timing set for the lower octane if not using the 97-99 supers) then the car is completely okay to use unleaded indefinately. If you wanted to add one of those little lead additive things you can put in the fuel line like a fuel filter, then there'd be no need to use the additive in the tank. Quote Link to comment Share on other sites More sharing options...
SENNA1 Posted December 22, 2009 Author Share Posted December 22, 2009 Thanks Rick.I'm currently use both.I'm planning to remove the 'lead feeder' as it's about 10 years now in place(don't know if it's still working)& continue use the lead additive only. Quote Link to comment Share on other sites More sharing options...
IanMc Posted December 22, 2009 Share Posted December 22, 2009 one of those little lead additive things you can put in the fuel line like a fuel filter Not seen those - what are they?, do they work well? and where do I get one? Thanks in advance, Ian Quote Link to comment Share on other sites More sharing options...
Rick-Manta Posted December 22, 2009 Share Posted December 22, 2009 They look and fit like a small fuel filter which I've seen on quite a few cars now. I've not used one personally so wouldn't know where to get one unfortunately. I've seen a couple on club cars so I'm sure someone'll know on here?! Quote Link to comment Share on other sites More sharing options...
Snowy Posted December 22, 2009 Share Posted December 22, 2009 Not seen those - what are they?, do they work well? and where do I get one? Thanks in advance, Ian No they don’t work and one company, whose name I cannot remember, got into a lot of trouble because of their claims. There has been a lot of testing done on these in line pellets and although they do release small quantities there is not enough to give any benefit. Stick to the approved additives or get an unleaded conversion. Quote Link to comment Share on other sites More sharing options...
Rick-Manta Posted December 22, 2009 Share Posted December 22, 2009 ^ I'd go with the latter, I've heard people taking the heads off to find the valve seats knackered even with top brand additives. I assume they can help prolong the inevitable, so for show only type cars you're not going to notice any problems for years as the cars just don't do the mileage. When I pick up my GTE ('84 pre unleaded head) in a months time I'm just going to use unleaded until such time I can send the head off to a trustworthy company and get it professionally refurbed with new exhaust valve seats. Quote Link to comment Share on other sites More sharing options...
deanosabby Posted December 22, 2009 Share Posted December 22, 2009 This might sound daft but I thought all 2.0 head engines could run on unleaded ok which is what I have been doing since being told by a knowledgeable club member. Is this right or do I need to be going back to using lead additive. Ta, Deano. Quote Link to comment Share on other sites More sharing options...
SENNA1 Posted December 22, 2009 Author Share Posted December 22, 2009 This might sound daft but I thought all 2.0 head engines could run on unleaded ok which is what I have been doing since being told by a knowledgeable club member. Is this right or do I need to be going back to using lead additive. Ta, Deano. Quote Link to comment Share on other sites More sharing options...
Snowy Posted December 22, 2009 Share Posted December 22, 2009 If you want to run a 2L engine without an addative then it must have been produced after march 1985. Quote Link to comment Share on other sites More sharing options...
deanosabby Posted December 22, 2009 Share Posted December 22, 2009 If you want to run a 2L engine without an addative then it must have been produced after march 1985. Cheers for that Snowy, Looks like I will be going back to using the additive as my car is a 78. Ta, Deano. Quote Link to comment Share on other sites More sharing options...
manta400john Posted December 22, 2009 Share Posted December 22, 2009 Deano, 2.0 models prior to 20E-0354999 need some sort of additive. From engine no. 20E-0355000 these have hardened valve seats. Think there is a stamping on the head as well....but not going outside to look. Your head will be a 20S type ? John. Quote Link to comment Share on other sites More sharing options...
deanosabby Posted December 22, 2009 Share Posted December 22, 2009 Deano, 2.0 models prior to 20E-0354999 need some sort of additive. From engine no. 20E-0355000 these have hardened valve seats. Think there is a stamping on the head as well....but not going outside to look. Your head will be a 20S type ? John. Sure is John. Cheers for that. Ta, Deano. Quote Link to comment Share on other sites More sharing options...
SENNA1 Posted December 23, 2009 Author Share Posted December 23, 2009 Deano, 2.0 models prior to 20E-0354999 need some sort of additive. From engine no. 20E-0355000 these have hardened valve seats. Think there is a stamping on the head as well....but not going outside to look. Your head will be a 20S type ? John. What about my engine no: 20S*0517352 .Does it needs an additive? Thanks in advance. Quote Link to comment Share on other sites More sharing options...
spiney_norman Posted December 23, 2009 Share Posted December 23, 2009 Yes, anything starting with 20S will need an additive. Quote Link to comment Share on other sites More sharing options...
SENNA1 Posted December 24, 2009 Author Share Posted December 24, 2009 Yes, anything starting with 20S will need an additive. Thanks mate! Quote Link to comment Share on other sites More sharing options...
cam.in.head Posted December 24, 2009 Share Posted December 24, 2009 20s engines as found in mk2 carltons have correct head from march 85 onwards,as do manta gte,s same time. heads on engines that are ok for full unleaded will be stamped on the side next to the cam access plate P2 carburrettor engines (carlton) or P2E INJECTION ENGINES. 20S ENGINE NUMBER 0844000 ONWARDS 20E 0355000 22E 0021000 Quote Link to comment Share on other sites More sharing options...
mantadoc Posted December 24, 2009 Share Posted December 24, 2009 Or you could treat the head as a consumable, retard timing and run without additives, then change the head and or engine later. The money saved on additive if put in a tub would probably buy you the replacement head when needed. Quote Link to comment Share on other sites More sharing options...
SENNA1 Posted January 2, 2010 Author Share Posted January 2, 2010 Or you could treat the head as a consumable, retard timing and run without additives, then change the head and or engine later. The money saved on additive if put in a tub would probably buy you the replacement head when needed. What's the approximate price for a used overhaul 20S engine? Quote Link to comment Share on other sites More sharing options...
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