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by paul.jameson
Fri Oct 18, 2019 8:11 pm
Forum: Four stroke
Topic: Front fork oil leak.
Replies: 2
Views: 74

Re: Front fork oil leak.

I think you may find that the new stanchions are the problem. I have exactly the same issue on my 1954 KH(A) and have replaced the seals several times. It has recently been suggested to me that the answer is to take the stanchions out and polish them over the length that the oil seals bear upon, so ...
by paul.jameson
Thu Oct 17, 2019 7:59 pm
Forum: Four stroke
Topic: 4G Carb / Dynamo Clearance
Replies: 7
Views: 206

Re: 4G Carb / Dynamo Clearance

All the bi-starter type Ariel Solex carbs have the main jet holder with the chamfer so it must have been needed to clear the dynamo before we started skimming heads, rocker box surfaces and rocker boxes themselves. As a rule, there is a bit of surplus "meat" on the main jet holder so turni...
by paul.jameson
Sun Oct 13, 2019 9:45 pm
Forum: Four stroke
Topic: redhunter bright red please,urgent
Replies: 2
Views: 112

Re: redhunter bright red please,urgent

Renault Rouge RE705.
by paul.jameson
Wed Oct 09, 2019 8:36 pm
Forum: Where is it now ?
Topic: SA1
Replies: 7
Views: 227

Re: SA1

A very, very, fine tribute indeed to the interchangeability of Ariel parts.
by paul.jameson
Wed Oct 09, 2019 8:32 pm
Forum: Ariel Talk
Topic: 1948 Iron 4G Coil Ignition
Replies: 92
Views: 11533

Re: 1948 Iron 4G Coil Ignition

Chris, I am delighted at your progress. The problem always did sound like fuel starvation. Solex adjustments are not too easy or too obvious. Jens Beusse and Otto Mederle, both from Germany, are the serious experts on these carbs. Apart from anything else, they know which parts should be fitted - an...
by paul.jameson
Mon Oct 07, 2019 8:22 pm
Forum: Four stroke
Topic: 4G exhaust manifolds
Replies: 3
Views: 553

Re: 4G exhaust manifolds

The thin wall one looks correct to me. I wonder if the thick wall one has been cast using the pattern for the alloy versions of these manifolds, as used in 1948. I doubt it will make much difference, unless you go racing.
by paul.jameson
Mon Oct 07, 2019 8:17 pm
Forum: Four stroke
Topic: So it begins
Replies: 63
Views: 5009

Re: So it begins

Take the rocker box cover off and pour a pint of oil in so that it flows into the sump. The flywheels will dip in it, splash it about and so prevent any damage while you test run the engine. In the following order: Check that you have the oil pipes connected the correct way round. Make sure that the...
by paul.jameson
Mon Oct 07, 2019 7:43 pm
Forum: Ariel Talk
Topic: 1948 Iron 4G Coil Ignition
Replies: 92
Views: 11533

Re: 1948 Iron 4G Coil Ignition

Picking up on your wife's point and given that you have just re-timed everything, are you sure that you have timed on the compression stroke rather than the exhaust stroke?
by paul.jameson
Sun Sep 29, 2019 9:38 pm
Forum: Ariel Talk
Topic: Ariel Mirror
Replies: 2
Views: 349

Re: Ariel Mirror

What a cracking idea ! Well done.
by paul.jameson
Sun Sep 29, 2019 9:32 pm
Forum: Ariel Talk
Topic: 1948 Iron 4G Coil Ignition
Replies: 92
Views: 11533

Re: 1948 Iron 4G Coil Ignition

Hello Chris, Following your description of the coil conversion, plus the photo you posted earlier, I think it unlikely that this is the cause of the problem. You are consistent in saying that you have a spark. If we exclude jets of the wrong size, or jets fitted in the wrong places (it can be done b...

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