Indian Bullet engine and gearbox into Redditch frame has been done with kick start models, with both pre-56 and later style frames. Besides building a K/S special into a Connie frame, I have also had a trial run with a set of E/S crankcases, 5 speed box and Indian engine plates into a '61 Bullet frame and at least these components fit. So far so good. Now my curiosity has been aroused, so in a quick trip to the garage I offered up my redundant Electra-X inner chaincase, that seems to go on OK, and then the starter motor - no go, two things stopping it, namely a bent downtube and a rather chunky malleable iron lug instead of the welded-on tube mounts for the front engine mounting stud, which all my other Redditch and Madras/Chennai frames have.
Not a runner with the knackered '61 frame, how about seeing if the starter motor physically fits between the downtube and the front of the crankcases of my '59 Bullet? Ooh, NEARLY, which suggests that with a set of E/S crankcases machined to take it instead of the K/S cases, in might actually fit in there. I also checked with the motor in its old home on the Electra-X crankcases, where I know it used to fit, and even that still has very little room to spare.
So, two questions for you: 1. Does your '52 frame still line up OK? 2. Is your front engine stud mount the welded tube type or the chunky casting? The online parts book picture of the '52 frame here
http://www.hitchcocksmotorcycles.com/pa ... ntre_Stand_ suggests the former, so if the frame is as it left the factory, you **might** just be in business.
This doesn't address the issue of whether you SHOULD fit an E/S Bullet engine into a '52 frame. The problem with the sprag clutches, particularly on the Electra-X models, was that they really didn't like engine backfiring or even stopping on the kill switch, with the engine spinning back a little against compression. Solution, make sure your carb and ignition are set up correctly, and on Classic E/S models stop the engine with the decompressor. You will also need the battery tray from an E/S model, which I presume can be made to fit even if it doesn't go straight on. But as Norm points out, if your 52 Bullet is a complete bike, do you really want to turn it into a bitsa?
Regards,
A.