250/350 desmo head rebuild
Posted: Fri Mar 02, 2018 2:10 pm
Hi all,
I am completely new to here from the U.K. so please excuse me if I get stuff wrong until I get used to what I'm doing,
So......I have been riding, repairing, tuning, and cursing at Ducati singles for over 40 years, not sure not how many I have owned in total but at least 15 that I can recall, currently I have a 1974 350 mark3 which I bought brand new when I was 18 years old and am so happy that I still have it today!! I also have a relatively recently obtained 1975 250 desmo which I am presently rebuilding .......Which brings me to my first posting here.....the previous owner 'lost' (of all things) some parts from the desmo head....I have no valve springs, no valve spring bottom seats, no valve spring top saddles and no valve spring top saddle split collet retainers, basically he lost all the valve spring associated parts. Now I have managed to locate a source for a set of 160 monza valve springs which are the same as desmo springs, but having no luck with the other bits.(unless anyone on here knows of a source?)
Has any one on here tried a V twin desmo return spring set up on a single? I know I can use closing collars from a V twin with 8mm valve stems, but can I get some variant of the V twins 'clothes peg' valve spring to fit the singles closing rocker? I have set up and or rebuilt quite a few desmo heads but always with the standard lightweight hairpin springs.
Cheers,
Blethermaskite
I am completely new to here from the U.K. so please excuse me if I get stuff wrong until I get used to what I'm doing,
So......I have been riding, repairing, tuning, and cursing at Ducati singles for over 40 years, not sure not how many I have owned in total but at least 15 that I can recall, currently I have a 1974 350 mark3 which I bought brand new when I was 18 years old and am so happy that I still have it today!! I also have a relatively recently obtained 1975 250 desmo which I am presently rebuilding .......Which brings me to my first posting here.....the previous owner 'lost' (of all things) some parts from the desmo head....I have no valve springs, no valve spring bottom seats, no valve spring top saddles and no valve spring top saddle split collet retainers, basically he lost all the valve spring associated parts. Now I have managed to locate a source for a set of 160 monza valve springs which are the same as desmo springs, but having no luck with the other bits.(unless anyone on here knows of a source?)
Has any one on here tried a V twin desmo return spring set up on a single? I know I can use closing collars from a V twin with 8mm valve stems, but can I get some variant of the V twins 'clothes peg' valve spring to fit the singles closing rocker? I have set up and or rebuilt quite a few desmo heads but always with the standard lightweight hairpin springs.
Cheers,
Blethermaskite