Hi guys. I bought an old CS with an uncertain history some months back, and began working through the various things wrong with it - mostly "previous owner stuff"
Turned out to have had the cam set 90 degrees out of time, losing compression out of a leaking COV that took a hell of a lot of removing as well as through very worn valve guides, a cylinder that had sat full of water - possibly for some years, and a flogged-out big-end, snapped-off oil flinger, a home-made head gasket and about double the ideal bump clearance . . .among other things
Many thanks to all those who helped me with advice - especially Gary DieselGman and 38AC for giving me an understanding of the timing cycles, Ed Dee for his KISS advice on re-timing the cam, Starfire for his wisdom on the injection, Rob from Old Timer engine in Australia with parts and advice - and a bunch of others on this site whose wisdom has been freely given.
It has been sitting waiting for a chance for me to get a serious run at it and today I managed to put in a 12-hour day in the workshop: Welded a base for it to a trailer chassis I had been building in spare moments, bolted it down to that, fitted a new (Indian, 5-stud) head from Rob Johnstone at Old Timer engines and a new injector and pipe. Organised a temporary fuel supply and, voila, right away there's a proper "tink-clink" from the injector (what I had been hearing was only a shadow of that, but - not knowing how it should sound - I hadn't realised this).
Gave a healthy puff of smoke on the first crank and fired and ran on the third.
There's still a bunch to do - there's no governor linkage, but I have some bits off a 3/1 that will work, I think; Need to build it a cooling system - but that's just plumbing; ditto exhaust and air intake/filter; I have a modern, clean-able water trap/diesel filter unit ready to fit; and all of the covers are rusted-out, throw-away items so will need to build some more - just out of 10MM corten flat I think - and employ some sealant. The crankcase breather is rusted-out but there's a good plate and breather on the afore-mentioned 3/1 I think
I noticed some end-float at the crank, as well - but now that I have the keys free, taking a flywheel on and off is a two-minute job (I have been fitting the wheels and keys with a little nickel antisieze or CopperKote - I wonder if that's a bad practise?)
Anyway, lots to do but it is running nicely & showing potential
Thanks again to all those whose advice I have enjoyed
Cheers, Mike
