RTP Posted 5January, 2020 Report Share Posted 5January, 2020 Does anyone know how the piston to cylinder wall clearance varies from a aluminium nikasil cylinder to a cast iron cylinder? The two types of cylinders would expand quite different amounts as they heat up I suspect that if you put a piston designed for a nikasil cylinder in the same size cast iron cylinder it will be too tight after it heats up. Quote Link to comment Share on other sites More sharing options...
Cheshire Cat Posted 5January, 2020 Report Share Posted 5January, 2020 14 hours ago, RTP said: Does anyone know how the piston to cylinder wall clearance varies from a aluminium nikasil cylinder to a cast iron cylinder? The two types of cylinders would expand quite different amounts as they heat up I suspect that if you put a piston designed for a nikasil cylinder in the same size cast iron cylinder it will be too tight after it heats up. There you go Quote Link to comment Share on other sites More sharing options...
RTP Posted 6January, 2020 Author Report Share Posted 6January, 2020 Sorry.....I can't get those links to work Quote Link to comment Share on other sites More sharing options...
Cheshire Cat Posted 6January, 2020 Report Share Posted 6January, 2020 40 minutes ago, RTP said: Sorry.....I can't get those links to work Let's try this way https://photos.app.goo.gl/FBq4nRtEebFGm8Mf7 Quote Link to comment Share on other sites More sharing options...
Mike D'Silva Posted 9January, 2020 Report Share Posted 9January, 2020 On 05/01/2020 at 16:59, RTP said: Does anyone know how the piston to cylinder wall clearance varies from a aluminium nikasil cylinder to a cast iron cylinder? The two types of cylinders would expand quite different amounts as they heat up I suspect that if you put a piston designed for a nikasil cylinder in the same size cast iron cylinder it will be too tight after it heats up. Some info here. I don't think there is an answer to your exact question. http://blog.wiseco.com/piston-to-wall-clearance-myths-mysteries-and-misconceptions-explained Quote Link to comment Share on other sites More sharing options...
RTP Posted 11January, 2020 Author Report Share Posted 11January, 2020 Hey thanks very much for that for that info...very useful and interesting. I have heard various stories about people replacing Nikasil with cheaper cast iron cylinders so I thought I would do a little research to understand it better. Checked your website. Looks like you do some good work! cheers Rob Mike D'Silva 1 Quote Link to comment Share on other sites More sharing options...
ELSPORTO Posted 20January, 2020 Report Share Posted 20January, 2020 On 11/01/2020 at 12:00, RTP said: Hey thanks very much for that for that info...very useful and interesting. I have heard various stories about people replacing Nikasil with cheaper cast iron cylinders so I thought I would do a little research to understand it better. Checked your website. Looks like you do some good work! cheers Rob Hi Rob, what sort of cylinders are you after? I have a set of NOS 2.2S mahle pistons and nikasil cylinders for sale. Quote Link to comment Share on other sites More sharing options...
RTP Posted 18February, 2020 Author Report Share Posted 18February, 2020 Thanks.....I am not after any cylinders. Just interested in learning more as I have heard about people replacing Nikasil with cast iron due to the cost saving. Quote Link to comment Share on other sites More sharing options...
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