peterdug Posted July 6, 2008 Share Posted July 6, 2008 I bought a 300 tdi engine from a rangerover for my defender build, i then got hold of an r380 gearbox to fit with it but the back plate on the engine is bigger than the gearbox bellhousing. The number on the engine backplate is HRC 2449 and the gearbox is HRC 2641, my question is, whats the simplest way round this problem, is it just a straight swop of either the backplate or the bellhousing? Cheers for any help. Quote Link to comment Share on other sites More sharing options...
western Posted July 6, 2008 Share Posted July 6, 2008 The number on the engine backplate is HRC 2449 and the gearbox is HRC 2641 Those are blank casting numbers not LR part numbers. RR 300Tdi has 2 versions of back plate/flywheel housing ERR4722 for EDC fitted engines or ERR4723 non-EDC engine Defender 300TDi has ERR4723 I can't tell from the parts cat, if there's any physical difference between the parts. both engine blocks are the same so you can just bolt the right housing on. Quote Link to comment Share on other sites More sharing options...
peterdug Posted July 6, 2008 Author Share Posted July 6, 2008 Those are blank casting numbers not LR part numbers.RR 300Tdi has 2 versions of back plate/flywheel housing ERR4722 for EDC fitted engines or ERR4723 non-EDC engine Defender 300TDi has ERR4723 I can't tell from the parts cat, if there's any physical difference between the parts. both engine blocks are the same so you can just bolt the right housing on. Cheers western, my own defender 300 tdi has the same number on the gearbox as the new one but different number on the backplate, so i'm thinking the best option is to change the backplate on the new engine, would i be right in thinking the reason RRs have 2 backplates is for auto or manual boxs, if so anybody out there putting an auto box in their defender as i have the backplate and flywheel. Quote Link to comment Share on other sites More sharing options...
western Posted July 6, 2008 Share Posted July 6, 2008 R380 gearbox in 300Tdi RR & 300Tdi Defender use the same bell housing LR part FTC3921. & auto is different so Yes there is different backplates for auto & manual gearbox's. hth Quote Link to comment Share on other sites More sharing options...
peterdug Posted July 6, 2008 Author Share Posted July 6, 2008 R380 gearbox in 300Tdi RR & 300Tdi Defender use the same bell housing LR part FTC3921. & auto is different so Yes there is different backplates for auto & manual gearbox's.hth What about the Disco manual backplate, is that the same as the RR and defender i'm just thinking i'm more likely to come across a scrap disco engine, cheers mate Quote Link to comment Share on other sites More sharing options...
western Posted July 6, 2008 Share Posted July 6, 2008 Same as the 2 numbers above, Disco has FTC4722 on EDC [electronic diesel control] engines & FTC4723 on EGR fitted & Non-EGR fitted engines. Quote Link to comment Share on other sites More sharing options...
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