henk power Posted July 10, 2021 Report Share Posted July 10, 2021 Can anyone inform please, I bought a Spitfire Mark II and the engine number was probably removed from the block because the place is blanc, in stead there is a Tag with the information of the engine attached to the side with a serial number and other information...is it possible this engine or the whole car was returned to the build factory due to a problem with the engine from new or in garantee? This is the first time I see this kind of enginenumber...what does the other information mean? Has anyone info or a similar tag? Link to comment Share on other sites More sharing options...
JohnD Posted July 10, 2021 Report Share Posted July 10, 2021 If the bores, big and main journals were STND ( at least when it left the factory!) I imagine this is an engine built to be sent out in exchange for a faulty one. Not one returned with a defect and rebuilt. Link to comment Share on other sites More sharing options...
PeteH Posted July 10, 2021 Report Share Posted July 10, 2021 Just noticed the plate would appear To indicate Exchange (STANPART) Unit?. Has the car had a Factory replacement Engine?. Which I see John has picked up on?. Slightly off topic. What (if any) is the sgnificance of the HE suffix after an Engine number? As in GK1234HE.? Pete Link to comment Share on other sites More sharing options...
Pimp my Vit Posted July 10, 2021 Report Share Posted July 10, 2021 Try this.... http://www.triumphspitfire.com/enginenumbers.html Just means High Compression Engine 1 Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 10, 2021 Report Share Posted July 10, 2021 it is just a genuine factory exchange unit could be a warranty job or someone in its life purchased a factory recon nothing unusual interesting it has the piston grades on the plate Pete Link to comment Share on other sites More sharing options...
thescrapman Posted July 10, 2021 Report Share Posted July 10, 2021 I had one of those engines, very similar engine number as well, I sold it to a Herald owner to give his car a bit more go. Had an SAH cam in it as well. Not sure it ever made it into the car. Link to comment Share on other sites More sharing options...
JohnD Posted July 11, 2021 Report Share Posted July 11, 2021 19 hours ago, Pete Lewis said: it is just a genuine factory exchange unit could be a warranty job or someone in its life purchased a factory recon nothing unusual interesting it has the piston grades on the plate Pete 22 hours ago, henk power said: Can anyone inform please, I bought a Spitfire Mark II and the engine number was probably removed from the block because the place is blanc, in stead there is a Tag with the information of the engine attached to the side with a serial number and other information...is it possible this engine or the whole car was returned to the build factory due to a problem with the engine from new or in garantee? This is the first time I see this kind of enginenumber...what does the other information mean? Has anyone info or a similar tag? Pete, how does it show the piston grade? "BAAA"? And what different grades of piston were there? I did hear that the production line was supplied with pistons of different sizes, to be fitted to the indifferently machined-out bores! John Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 11, 2021 Report Share Posted July 11, 2021 no idea of the sizes but pretty much all makers graded and matched best fit tolerances pistons to bores cant see the letters being any thing else Pete Link to comment Share on other sites More sharing options...
PeteH Posted July 11, 2021 Report Share Posted July 11, 2021 I think I see what Pete is saying. Manufacturing tolerances (where) not as close as they can be to-day with modern (production) machinery, so IF a bore is at the limit of tolerance, it is better to match a piston at the limit rather than just throw in any piston and risk "piston slap" on a new engine?. Coding the bore(s) on the data plate is an indication to whoever next gets to work on the engine. Pete Link to comment Share on other sites More sharing options...
henk power Posted July 12, 2021 Author Report Share Posted July 12, 2021 OK, thanks for all the good advice, I agree with the possible A and B codes for the piston grades. Just don't know yet what the FRL code behind the FC number stands for, I thought maybe there is an register for the exchange engines and their comments. To John D, why are you so sure not one engine returned defect to the factory, in that time work was not so controlled as now or was work perfect in that time? In current times a lot of engines of any kind fail in their first year? Thanks Henk Link to comment Share on other sites More sharing options...
DanMi Posted July 12, 2021 Report Share Posted July 12, 2021 lots of engines were returned to the factory, what John D means is this was not likely to be an engine that was returned and rebuilt as the bores and crank are standard. It probably was sent out to replace a returned engine Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 12, 2021 Report Share Posted July 12, 2021 the WSM give 3 grades for 1147 pistons as F G H no A s or Bs the tail suffix FR ( factory recon) L (low compression) is all i see that suits the plate every maker sold exchange units like BL who did gold seal etc nothing unusual for this to have been fitted for any reason though its life time could be warranty or a previous owner replaced a worn unt and bought a factory recon lots of people did this Pete Link to comment Share on other sites More sharing options...
thescrapman Posted July 12, 2021 Report Share Posted July 12, 2021 I reckon the L is a poorly stamped E for Factory Reconditioned Engine. Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 12, 2021 Report Share Posted July 12, 2021 that would be more sensible Pete Link to comment Share on other sites More sharing options...
henk power Posted July 12, 2021 Author Report Share Posted July 12, 2021 Thanks for all the advice, so the original engine failed at some time and was replaced with an original ordered exchange Stanpart engine with the same qualifications, so good to know that the owner at that time used the opportunity to change it with a factory available more costly engine in stead of using a cheaper second hand one with maybe unreliable background. Startup will be this wintertime, I'll take compression and check it completely before firing it up! Must be standing still for a long time, I bought the car as is and guess it didn't turn since a long time... Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 13, 2021 Report Share Posted July 13, 2021 think thats a fair summary of its history pete Link to comment Share on other sites More sharing options...
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