Rolls-Royce Archives
| Identifier | Entry | ||
| img001 | Graph comparing the performance of Champion L88 and K.L.G. FL830X spark plugs on a 6-cylinder engine. | ||
| View original record | COMPARISON TESTS OF CHAMPION L88 AND K.L.G. FL830X PLUGS. TESTS PERFORMED ON CHASSIS 3BIV. NO. 6 CYL. BEING USED THROUGHOUT. CHAMPION L88 CURVES SHOWN THUS K.L.G. FL830X MAX. VOLTAGE ACROSS POINTS.… | ||
| img002 | Graph comparing the performance of Lodge and KLG spark plugs at various plug gaps and engine conditions. | ||
| View original record | COMPARISON TESTS OF LODGE 640 SINGLE POINT AND K.L.G. FLB30X PLUGS. TESTS PERFORMED ON CHASSIS 38.IV No. 6 CYL. BEING USED THROUGHOUT. LODGE 640 S.P. CURVES SHOWN THUS. --- K.L.G. F.L.B. 30X MAX.… | ||
| img003 | Comparison test graph of Lodge 641 three-point and KLG FLB 30X spark plugs. | ||
| View original record | COMPARISON TEST OF LODGE 641 THREE POINT AND KLG FLB 30X PLUGS. TESTS PERFORMED ON CHASSIS 3 B.W. NO. 6 CYL. BEING USED THROUGHOUT. LODGE 641 T.P. CURVES SHOWN THUS. KLG FLB 30X. PICK-UP. SLOW… | ||
| img004 | Comparison of specifications for K.L.G. FLB 30X and K.L.G. FL 30X spark plugs. | ||
| View original record | K.L.G. FLB 30X REACH — — — — 0·700" LENGTH OF BARREL — 1·050" LENGTH OF INSULATOR — 2·350" INSULATOR MATERIAL — CORUNDITE REMARKS. FOR USE ON BENTLEY, SIMILAR IN DIMENSIONS TO FLB 30.X; BUT… | ||
| img005 | Test results and comparisons of different K.L.G. spark plug models. | ||
| View original record | K.L.G. FLB-30X. Standard 25/30 & Bentley plug. Set on S-6-IV, 6-B-IV, 7-B-V The Corundite insulator on the K.L.G. plug is superior to the Champion Sillimanite. 1 case of misfiring on the Ripple. (1586… | ||
| img006 | Specification comparison between Lodge 640 and Lodge 641 spark plugs. | ||
| View original record | LODGE 640 REACH: 0.700" LENGTH OF BARREL: 1.000" LENGTH OF INSULATOR: 2.200" INSULATOR MATERIAL: SINTOX REMARKS: SINGLE & THREE POINT TYPES OBTAINED FOR TEST ON PH. III LODGE 641 REACH: .700" LENGTH… | ||
| img007 | Specification sheet and photographs for a Lodge 741 spark plug. | ||
| View original record | LODGE 741 REACH - 0.75" LENGTH OF BARREL - 0.937" LENGTH OF INSULATOR - 2.250" INSULATOR MATERIAL - SINTOX REMARKS: COOLER PLUG THAN FORMER LODGE TESTED FOR TRIAL ON B60 & B80. | ||
| img008 | Test notes on Lodge spark plugs concerning voltage measurements, wear, and misfiring causes. | ||
| View original record | LODGE. 741. 1 set on 1-R-1. Voltages measured every 1000 miles. Tests to determine whether oxidation of points, or insulator leakage causes misfiring after a fair mileage. B14 Wear .003 after 1000… | ||
| img009 | Specification and photographic comparison of Champion NA 8 and LB 8 spark plugs. | ||
| View original record | CHAMPION NA 8 REACH: .900" LENGTH OF BARREL: .850" LENGTH OF INSULATOR: 2.200" INSULATOR MATERIAL: SILLIMANITE REMARKS: OBTAINED FOR TEST ON PH. III CHAMPION L B 8. REACH: .600" LENGTH OF BARREL:… | ||
| img010 | Test notes on Champion spark plugs L88, N8, and NA10. | ||
| View original record | CHAMPION. L88. Sets on 5.B.IV 2.B.50 30.G.VII 10.B.V WXA.2. 1 set on transport car, to be compared with FLB.30XP on other transport car. Found to have lower firing voltage than AC.46 & N8, during… | ||
| img011 | Comparison of A.C. K.11 and A.C. 46 spark plugs with photographs and specifications. | ||
| View original record | A.C. K.11 REACH --- 0.375" LENGTH OF BARREL --- 0.812" LENGTH OF INSULATOR --- 1.937" INSULATOR MATERIAL - SILLIMANITE REMARKS: FOR TRIAL ON B 80. A.C. 46 REACH --- 0.375" LENGTH OF BARREL --- 0.812"… | ||
| img012 | Test report on three different AC short reach spark plugs, detailing their performance and suitability. | ||
| View original record | AC. AC-K11. Short reach plug as used on Vauxhall "25" Set on 4-8-50 30-G-VII Not sufficient running for report. AC-K9V. Short reach plug as used on Vauxhall "10" Set on 4-8-50 - Removed after 692… | ||
| img013 | Conclusions from tests comparing Delco and R.R. ignition systems to resolve engine misfiring issues. | ||
| View original record | Mx.1/MG.27.3.39 (continued) - 4 - to overcome misfiring with R.R.distributor, by using a rotor air gap of .024. Tests made to determine whether this dimension is critical indicate that the gap can be… | ||
| img014 | Tests comparing Delco and R.R. distributors, focusing on plug gaps and ignition performance with oxidised plugs. | ||
| View original record | Mr.1/MG.27.3.39 (continued) - 3 - oxide from electrodes. In further tests in connection with plug gaps, care was taken to avoid altering the condition of plug electrodes. Reducing gaps to .025 on an… | ||
| img015 | Investigation into misfiring on the No. 6 cylinder of Wraith cars, diagnosing the cause as oxidised spark plug electrodes. | ||
| View original record | Mx.1/MG.27.3.39 (continued) - 2 - As there had been a few cases of misfiring on No.6 cylinder on certain Wraith cars in service, we next carried out some tests on the H.T.Wiring lay-out. (1) H.T.wire… | ||
| img016 | Tests to diagnose irregular engine running in a Wraith model. | ||
| View original record | Ignition To: By Bm Da Hy/RD Hm/RC WRAITH Irregular running of Engine We have carried out a series of tests on 27.G.VI to find out the cause of the above fault, which developed after 5,000 miles… | ||