thescrapman Posted January 17, 2009 Share Posted January 17, 2009 Is the base plate in a 25d4 teh same as a 25d6??I have lots of spare d4's and need one for my sole d6.CheersColin Link to comment Share on other sites More sharing options...
Pete Lewis Posted January 17, 2009 Share Posted January 17, 2009 possible but if you have loads of spares give it a try and let us all know if you need one it should be available from http://www.distributordoctor.com/distributor_baseplates.htm Pete Link to comment Share on other sites More sharing options...
thescrapman Posted January 21, 2009 Author Share Posted January 21, 2009 I can confirm that a 25d4 base plate fits a 25d6. I had to strip 3 before I found a good one though. The little nylon pips had worn grooves in the steel of the base plate.A quick rub with 1200 wet and dry and some grease made the replacement so easy to turn compared with the badly worn original.Sadly the work highlighted I have the wrong distributor in the car.I have a Mk2 PI one (41236B), rather than a Mk1 PI one (41236A). The replacement is dated 07-69 so only a few months too young.A check of the on-line resource reveals what seems to be quite different advance curves.The 41236A is 2000rpm - 7 degrees800rpm - 7.5 degrees450rpm - 1.5 degreesno advance 175 rpmThe 41236B is3000rpm - 10 degrees1500 rpm - 10 degrees650rpm - 3 degreesno advance below 375rpmCan anyone confirm if these figures are correct???I have assumed it is distributor rpm rather than engine rpm.finally I had assumed the 2 engines were very similar. Is the Mk1 version a 5* special??CheersColin Link to comment Share on other sites More sharing options...
Pete Lewis Posted January 21, 2009 Share Posted January 21, 2009 in general dizzy specifications are dizzy revs,, they are decelerating speeds on the curveand they show dizzy advance degrees if checking on the crank you need to double it all Pete Link to comment Share on other sites More sharing options...
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