Sparky_Spit Posted October 8, 2019 Report Share Posted October 8, 2019 Would some kind person who has access to a proper factory workshop manual check some sizes and clearance for me please? I have them from the Haynes but want to make 100% certain that I have the correct specs. This is for a 1500 FM Spitfire engine. The figures I have: Standard size Main journals at 2.3115 to 2.312 inches diameter with the bearing clearance as between 0.5 to 2 thou. Standard size Big End journals at 1.875 to 1.8755 inches diameter with the bearing clearance as between 1 to 3 thou. (3 thou. seems a bit big to me?.......) If someone could confirm, or correct, from the proper manual that would be much appreciated. Thanks in advance - Mike Link to comment Share on other sites More sharing options...
thescrapman Posted October 9, 2019 Report Share Posted October 9, 2019 Sent you an email of info from factory manual for 1500 Toledo, my library doesn't go as new as the Spitfire Link to comment Share on other sites More sharing options...
Sparky_Spit Posted October 9, 2019 Author Report Share Posted October 9, 2019 Many thanks Colin - much appreciated. Does anybody have a recommendation for both mains and big-end clearance values? I'm using Millers CSS20/60 oil. Link to comment Share on other sites More sharing options...
Sparky_Spit Posted October 9, 2019 Author Report Share Posted October 9, 2019 I may have answered my own question... An interesting read is attached (page 16). Clevite-Engine-Bearings.pdf Link to comment Share on other sites More sharing options...
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