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by paul.jameson
Wed Jul 31, 2019 8:43 pm
Forum: Ariel Talk
Topic: 1948 Iron 4G Coil Ignition
Replies: 64
Views: 4609

Re: 1948 Iron 4G Coil Ignition

As David Jones did the carb, you can discount that as a problem, unless it is bunged up with detritus from the fuel tank, in which case clean it out.
by paul.jameson
Tue Jul 30, 2019 8:05 pm
Forum: Four stroke
Topic: late square four tank paint/ chrome layout
Replies: 11
Views: 1326

Re: late square four tank paint/ chrome layout

That is looking very nice indeed.
by paul.jameson
Tue Jul 30, 2019 7:55 pm
Forum: Main Chat Forum
Topic: lessons for a first build
Replies: 1
Views: 822

Re: lessons for a first build

Congratulations on joining the group of us who have made many errors in assembling Ariels over the years. If you have only made this one error, you have a very long way to go in catching up the veterans on this Forum who have tens, if not hundreds, of errors under their belts!!
by paul.jameson
Sat Jul 27, 2019 9:16 am
Forum: Ariel Talk
Topic: 1948 Iron 4G Coil Ignition
Replies: 64
Views: 4609

Re: 1948 Iron 4G Coil Ignition

I would be looking at the fuel side, particularly the filters. If the fuel tank has previously been lined, the lining may now be failing due to ethanol in the fuel and blocking the filters. My experience of coil failure is that the engine runs ok for perhaps half an hour, till the coil gets hot and ...
by paul.jameson
Fri Jul 26, 2019 9:14 pm
Forum: Four stroke
Topic: Sq 4 rocker oil line leaks..
Replies: 12
Views: 1179

Re: Sq 4 rocker oil line leaks..

I don't drill into the rocker shaft. I did warn that the clearances were tight. It can be done but it does need a lot of care, shortening of the standard union and of the top nut, which also needs tapering. To drill the hole in the rocker block you need a square bottom drill - I use a milling cutter.
by paul.jameson
Fri Jul 26, 2019 9:04 pm
Forum: Member's Bikes
Topic: A matter of weight...
Replies: 20
Views: 2241

Re: A matter of weight...

LWE Hartley, the author of the article, was the Hartley in Carter & Hartley stamped (C&H) on my flywheels. So he didn't think too much of the light flywheels either and perhaps that is why they ended up in my engine. But they do go well in a light frame at high revs, as their owner, one John...
by paul.jameson
Fri Jul 26, 2019 8:20 pm
Forum: Member's Bikes
Topic: My 4G Restoration Blog
Replies: 123
Views: 15511

Re: My 4G Restoration Blog

The front centre bracket which you have made so well is usually riveted to the mudguard, as are various other brackets. I cheat here, and get Clay Jones at ACME stainless to turn me up some 1/4 cycle bolts with a head the same as the rivet head. Easy to fit, possible to remove should you need to and...
by paul.jameson
Thu Jul 25, 2019 7:41 pm
Forum: Member's Bikes
Topic: My 4G Restoration Blog
Replies: 123
Views: 15511

Re: My 4G Restoration Blog

Did you spray the wheelbuilding jig for practise first?
by paul.jameson
Thu Jul 25, 2019 7:37 pm
Forum: Member's Bikes
Topic: A matter of weight...
Replies: 20
Views: 2241

Re: A matter of weight...

It will be interesting to see PeterW's reply. Meanwhile, in the 1970s I ran a VH and Watsonian Monza sidecar which had highly polished steel flywheels which were completely flat on the outside and stamped C&H on the rims. I assume C&H stands for Carter and Hartley which was the dealership wh...
by paul.jameson
Sun Jul 21, 2019 8:38 pm
Forum: For sale/wanted - Parts
Topic: Wanted BA gearbox
Replies: 5
Views: 1166

Re: Wanted BA gearbox

I would use an 18 on the CP, so keeping it standard. That way the gearing will be correct and the same as the BA with a 19.

Can I suggest putting a wanted advert in Cheval for a postwar BA box? Alternatively, you might get one at the Annual Rally.

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