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by john.whiting
Mon Aug 19, 2019 1:20 pm
Forum: Main Chat Forum
Topic: Which Bronze to use ?
Replies: 28
Views: 1851

Re: Which Bronze to use ?

One of the US makers,maybe Reed and Prentice,used a babbit nut cast around the screw.,and Ive redone milling machine feed nuts this way on old machines......a roundtop Triumph with the "safety saddle" would be one of my favorite lathes.
by john.whiting
Mon Aug 19, 2019 6:52 am
Forum: Ariel Talk
Topic: 1928 Ariel some wood and some tape ..
Replies: 50
Views: 6217

Re: 1928 Ariel some wood and some tape ..

When you sandblast frames,all sorts of tiny letters and numbers appear,possibly placed by assemblers or machinists.
by john.whiting
Sun Aug 18, 2019 11:37 pm
Forum: Main Chat Forum
Topic: PTFE tape on fuel tap unions ?
Replies: 5
Views: 587

Re: PTFE tape on fuel tap unions ?

Soap is an old time fix for leaks in petrol tanks.....it sets solid in petrol.
by john.whiting
Sun Aug 18, 2019 12:28 am
Forum: Main Chat Forum
Topic: Studebaker Sq 4.
Replies: 1
Views: 580

Studebaker Sq 4.

Ive seen a couple of mentions recently of a plan the US Studebaker car and truck company had to make a four cylinder bike using a licence built Sq 4 motor ,coupled to a shaft drive copied from a BMW......a test unit of the motor and trans was built,but the project was shelved for war production in 1...
by john.whiting
Sat Aug 17, 2019 12:05 pm
Forum: Main Chat Forum
Topic: Which Bronze to use ?
Replies: 28
Views: 1851

Re: Which Bronze to use ?

I d use the easy to machine bronze.............IMHO ,the main cause of screwnut wear is lack of oil......topslide ,Id check the play in the thrust bearings......usually there is no wear in the nut there............Cross slide screws are often LH acme ,and sometimes 2 start.....Tracy tools used to se...
by john.whiting
Fri Aug 16, 2019 3:41 am
Forum: Four stroke
Topic: My 46 SQ4 is finished - or so I thought
Replies: 13
Views: 1261

Re: My 46 SQ4 is finished - or so I thought

You often get a lot of blowby for a short time with new rings ,pistons and bores....after that it settles down and there is no significant crankcase pressure.
by john.whiting
Fri Aug 16, 2019 3:37 am
Forum: Ariel Talk
Topic: 1948 Iron 4G Coil Ignition
Replies: 68
Views: 5629

Re: 1948 Iron 4G Coil Ignition

I would definitely give it a go with spray.........but one more point that I hesitate to say.......are you sure the spark leads are in correct firing order. and the cap isnt carbon tracked.
by john.whiting
Thu Aug 15, 2019 5:05 am
Forum: Ariel Talk
Topic: 1948 Iron 4G Coil Ignition
Replies: 68
Views: 5629

Re: 1948 Iron 4G Coil Ignition

Yes,something fundamentally wrong with the bi starter.......might be better blocking it off entirely ,and trying to get going .On a warm day a petrol engine should be able to run after a few seconds without any mixture enrichment ,and a bit of rag over the intake just to get it going.
by john.whiting
Thu Aug 15, 2019 1:56 am
Forum: Ariel Talk
Topic: 1948 Iron 4G Coil Ignition
Replies: 68
Views: 5629

Re: 1948 Iron 4G Coil Ignition

My first step with a no start /plenty of spark is to use some spray start..."start ya bastard" is the local brand -25% ether.........a lot safer than spray bottles of petrol.........if there is any spark at all the ether will light,if the spray doesnt kick ,then there is no spark.......oth...
by john.whiting
Wed Aug 14, 2019 4:54 am
Forum: Four stroke
Topic: 1938 ARIEL SQUARE FOUR REAR BRAKE PEDAL LEVER
Replies: 4
Views: 973

Re: 1938 ARIEL SQUARE FOUR REAR BRAKE PEDAL LEVER

Nortons use a similar spring on the 30s,40s,and 50 s non fullwidth brakes ........and maybe on the f/w ones too.

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