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by malcolm.johnson
Sun Sep 29, 2019 9:01 pm
Forum: Four stroke
Topic: Nh 350
Replies: 15
Views: 767

Re: Nh 350

To disconnect the capacitor on some models does require the armature to be dismantled. This is easy enough if you have the proper pullers to remove bearing inners etc. Pictures of my Square 4 "codesectomy". 20. Sq4 Full condensectomy (2).JPG 20. Sq4 Full condensectomy (3).JPG 20. Sq4 Full ...
by malcolm.johnson
Sun Sep 29, 2019 8:45 pm
Forum: Main Chat Forum
Topic: degreaser
Replies: 15
Views: 670

Re: degreaser

When I was an apprentice mechanic in the 1960`s we had a big paraffin bath that all the workshop lads shared and each mechanic also had his own tin of "trike" (trichloroethlene ?) Brilliant for cleaning anything especially carburettor exteriors, the smell still lingers with me, but I belie...
by malcolm.johnson
Sat Sep 28, 2019 11:23 am
Forum: Four stroke
Topic: Nh 350
Replies: 15
Views: 767

Re: Nh 350

I have used Brightspark capacitors 3 times now and all have worked great. The best result was by replacing the one in my 1947 iron 4G, which had a totally rebuilt and restored magneto/dynamo (that was unused albeit done a few years ago), but could not go further than 10 miles without bad misfiring p...
by malcolm.johnson
Thu Aug 15, 2019 11:39 am
Forum: Four stroke
Topic: Valve stem oil seals
Replies: 7
Views: 974

Re: Valve stem oil seals

Valve springs - fitting.JPG Valve guides fitted.JPG When I rebuilt my 1947 iron 4G in 2012 I made my own guides and machined them to suit seals as pictured (early Land Rover I think). I only fitted them to the inlets. I do not ride the bike much but they have covered several hundred miles and it do...