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by malcolm.johnson
Sat Nov 16, 2019 2:25 pm
Forum: Main Chat Forum
Topic: New club Facebook page
Replies: 58
Views: 1792

Re: New club Facebook page

Having been a BSA enthusiast until I bought my first Ariel (a dismantled 4G) nearly 10 years ago. I knew nothing about Ariels and largely that is still a fair description, so I joined the AOMCC. It was a great move as the club and forum were an essential source of help in the completion of that proj...
by malcolm.johnson
Sun Nov 03, 2019 12:42 pm
Forum: Four stroke
Topic: 1938 ariel square four tank mounting rubbers
Replies: 2
Views: 879

Re: 1938 ariel square four tank mounting rubbers

I remember trying to resolve this a few years ago. I simply worked on the old assumption that if it looks right, then it is right. I sat the tank on the rubbers in their two positions without bolts, stood back and looked at the bike and choose the best position. On my 1947 4G the 5/8 rubbers ended u...
by malcolm.johnson
Tue Oct 22, 2019 9:34 pm
Forum: Four stroke
Topic: Front fork oil leak.
Replies: 7
Views: 3540

Re: Front fork oil leak.

I have also found what Paul Appleton describes. I always fit seals now with a suitable application of pipe sealer or silicone sealant.
by malcolm.johnson
Sun Sep 29, 2019 9:01 pm
Forum: Four stroke
Topic: Nh 350
Replies: 15
Views: 3422

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: 17
Views: 7494

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: 3422

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: 1190

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...
by malcolm.johnson
Thu Aug 08, 2019 8:41 pm
Forum: Four stroke
Topic: spanner or socket
Replies: 10
Views: 1705

Re: spanner or socket

Here is mine. I needed a spanner in a hurry so used some 1/4 plate I had. Centre punch, dividers, drills and a file. A good hours work and only ever used it once!
by malcolm.johnson
Thu Jun 13, 2019 9:38 pm
Forum: Four stroke
Topic: Aftermarket alloy singles barrel and piston.
Replies: 14
Views: 1274

Re: Aftermarket alloy singles barrel and piston.

I understand that no head gasket is used with the alloy head and barrel set up and are just lapped in together save the pushrod tube seals. What torque setting should I use for the 4 waisted studs/nuts for this aftermarket barrel and alloy NH head?
by malcolm.johnson
Wed Jun 12, 2019 11:26 am
Forum: Four stroke
Topic: Aftermarket alloy singles barrel and piston.
Replies: 14
Views: 1274

Re: Aftermarket alloy singles barrel and piston.

Thanks Simon, very useful info. It seems from that information, that the proper alloy head and barrel uses 5 studs/nuts, whereas my aftermarket barrel must be solely intended for use with the alloy NH head, which as you know, uses 4 bolts. At least I now know how to proceed with the top end. Thanks ...

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