Guest snellsf Posted November 10, 2009 Share Posted November 10, 2009 Anyone have a Champion 6 spark plug (or plugs) for 1925 Buick Master Model 40? Just have had the car restored and one of the plugs cracked. I know I can run Autolites, but I would like to run the car with the spark plug cover in place.Thanks for any help. Steve Snell, Oviedo, FL egawai@aol.com BCA #20766 Link to comment Share on other sites More sharing options...
garnetkid Posted November 10, 2009 Share Posted November 10, 2009 Steve, I have AC 76 in my 25-45 and they fit under the cover. I do have a used champion 6 in my collection. Leon Link to comment Share on other sites More sharing options...
Guest LPHFARM Posted December 31, 2009 Share Posted December 31, 2009 DO YOU HAVE AN EXTRA SPARK PLUG COVER FOR A '27 STANDARD SIX? THANKS, KERRY Link to comment Share on other sites More sharing options...
Guest LPHFARM Posted January 1, 2010 Share Posted January 1, 2010 HI LEON! I HAVE A QUICK QUESTION: CAN YOU RUN A STANDARD SIX WITHOUT THE SPARK PLUG COVER? I RECALL SEEING 4 LITTLE HOLES THAT SEEM TO GO INTO THE CRANKCASE BEHIND WHERE THE COVER WOULD MOUNT. WOULDN'T DIRT/CRUD GET INTO THE ENGINE? THANK YOU, KERRY AT LPHFARM@AOL.COM Link to comment Share on other sites More sharing options...
garnetkid Posted January 5, 2010 Share Posted January 5, 2010 Hi LPHFarm, sorry I can't help with the standard six cover. I don't know what holes you are referring to that may be behind the cover. There shouldn't be any there that would penetrate into the block. Lots of the older buicks were run without the covers as they were put aside to accomodate the newer longer spark plugs when it became hard top find the proper short ones. That is why so many of these cars are found without the covers. Leon Link to comment Share on other sites More sharing options...
michaelod Posted January 5, 2010 Share Posted January 5, 2010 (edited) The holes you mentioned are also found on my 1930 Model 68 and drop through to the pushrod gallery. I have also wondered what the purpose of these are, as they do seem to be an open path to the crankcase. I can run longer plugs in the master engine with the cover on, so it does not seem to be an issue by the year 1930.Thanks, Edited January 5, 2010 by michaelod (see edit history) Link to comment Share on other sites More sharing options...
Buicksplus Posted January 11, 2010 Share Posted January 11, 2010 These engines really should not be operated without the spark plug cover. Most of the oil from the rockers returns to the crankcase via the gallery covered by the spark plug cover. There are many openings under that cover for dirt to get into the crankcase and on the camshaft.There are ridges that will keep most of the oil in place without the cover and I know many folks run these engines with missing covers. Still, it's not a great idea. Later Buicks (I think by 1930) provided covered oil return passages and then the spark plug cover became a cosmetic item. Link to comment Share on other sites More sharing options...
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