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Car Forum / MINI / November 2004Unleaded fuel & engine serial number
I have read that use of unleaded fuel is acceptable if the valve seats have had metal inserts installed, and that the inserts started being installed at some point in 1989. There is a list of engine s/n's posted, that will help me identify whether my engine is pre or post inserts, but I cannot find the serial number anywhere on my engine. At least any number that starts with 99H. Can anyone tell me where the serial number is supposed to be? > I have read that use of unleaded fuel is acceptable if the valve seats have > had metal inserts installed, and that the inserts started being installed at [quoted text clipped - 4 lines] > anywhere on my engine. At least any number that starts with 99H. Can > anyone tell me where the serial number is supposed to be? Engine number is on the block, a little plate riveted to the block right under the temp gauge sender on the head. If your engine has been rebuilt, often they plane the top of the block and don't bother to refit the plate, so the engine number gets lost. I have been running a highly modified Cooper S engine for years without the hardened valve seats, with no seat recession or other adverse results. My own opinion is that the hardened seats are not needed. -Rock http://www.rocky-frisco.com -- Rocky Frisco's LIBERTY website: http://www.liberty-in-our-time.com/ World's best free News Service: http://www.rationalreview.com/news/ Rocky, checked the area where you described to look for serial number. There is a plate there, but what confused me is that I do not recognize it as falling in the traditional range of 99H numbers. Mine starts with BHM 1439 1XXXXX. Any clues? CM > > I have read that use of unleaded fuel is acceptable if the valve seats have > > had metal inserts installed, and that the inserts started being installed at [quoted text clipped - 18 lines] > Rocky Frisco's LIBERTY website: http://www.liberty-in-our-time.com/ > World's best free News Service: http://www.rationalreview.com/news/ >Rocky, > [quoted text clipped - 3 lines] > >Any clues? some kind of Gold seal (factory rebuild) engine ... ( http://members.home.nl/mmarx/mini/goldseal.htm ) >CM greetings, Theo >> > I have read that use of unleaded fuel is acceptable if the valve seats >have [quoted text clipped - 21 lines] >> Rocky Frisco's LIBERTY website: http://www.liberty-in-our-time.com/ >> World's best free News Service: http://www.rationalreview.com/news/ Well that explains the funny number. Now to see if it has the upgraded head or not. At least in France they still sell leaded fuel, so there is no panic. CM > >Rocky, > > [quoted text clipped - 37 lines] > >> Rocky Frisco's LIBERTY website: http://www.liberty-in-our-time.com/ > >> World's best free News Service: http://www.rationalreview.com/news/ > Well that explains the funny number. Now to see if it has the upgraded head > or not. At least in France they still sell leaded fuel, so there is no > panic. Oh no they don't. What they sell as "Super" is unleaded with an additive. Switch to french: Va voir la FAQ de la Mini www.mini.online.fr/faq.htm. Tu as aussi plein de forums sur le web, dont www.minicorp.net et une mailing list en français sur www.mini.online.fr. Merci pour l'info. Je pense que je ferai le plein avec le SP98. Looks like I will be switching to unleaded SP98. Perhaps an occasional super fill up here and there. > > Well that explains the funny number. Now to see if it has the upgraded head > > or not. At least in France they still sell leaded fuel, so there is no [quoted text clipped - 6 lines] > de forums sur le web, dont www.minicorp.net et une mailing list en > fran?ais sur www.mini.online.fr. > Rocky, > [quoted text clipped - 3 lines] > > Any clues? That's not my area of expertise, unfortunately, but sounds like that's the engine number. Here's a suggestion: join the yahoo minElist and ask the question there. That list is the main source of arcane Mini information these days. To join, go to: http://autos.groups.yahoo.com/group/minilist/ -Rock http://www.rocky-frisco.com -- Rocky Frisco's LIBERTY website: http://www.liberty-in-our-time.com/ World's best free News Service: http://www.rationalreview.com/news/ Minis started being fitted with unleaded compatable engines in march april 1989, though leaded engine models were still being produced or sold at the time aswell. Iwas working for Rover at the time in the specification services department and I purchased one of the first unleaded minis in April 1989. I recall that the engine numbers did start with 99H but it was the fourth letter that denoted whether it was unleaded or leaded. I think 99HD was leaded and 99HE was unleaded. >I have read that use of unleaded fuel is acceptable if the valve seats have > had metal inserts installed, and that the inserts started being installed [quoted text clipped - 5 lines] > anywhere on my engine. At least any number that starts with 99H. Can > anyone tell me where the serial number is supposed to be? |
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