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Member postings for AJW

Here is a list of all the postings AJW has made in our forums. Click on a thread name to jump to the thread.

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Thread: Centaur engine timing gears
02/09/2018 19:10:15
Thanks for that, what a great supplier! (HPC Gears)
Looks like stock gears can be used with little modification, however I am now spoilt for choice - they can supply left and right hand helical!
Next question - would I need to order left or right hand helical?

Alan
02/09/2018 00:07:41
I am planning to build the above engine from castings supplied by Reeves.
Unfortunately they don't list the correct timing gears, they can supply 'similar gears' which would involve repositioning the camshaft to account for the gears increased centre's dimension.
Before I interrogate the web for something more suitable,is the Reeves offering the closest I am going to get?

Alan
Thread: Bench grinder
25/08/2018 21:47:40
I can vouch for the diamond wheel dresser, they work well but what a mess!
I have my grinder mounted on a wall bracket with wing nuts, I take it off and dress the wheels outside to avoid all the abrasive dust.

Alan
Thread: Are you a Man or a Mouse When Milling?
06/08/2018 17:32:02
Is there a benefit from having a cutter glowing?

Alan
Thread: ML7 lost drive
01/08/2018 20:06:56
Dismantled the headstock today and had to heat the pulley to get it off the gear - it was still a good fit!
All cleaned up and degreased then assembled with Granville 'bearing fit'
Seems to have done the job, time will tell!

Alan
Thread: 3-Phase Motor Conversions: Are They All Hype?
30/07/2018 16:08:51
I fitted a Bosch VFD and Brooks .37kw motor to my ML7 and wished I had done it years ago.
I did however wire it all up on the bench to see how it all worked as there are so many parameters which can be changed - it came with 2 books and at first it quite mind blowing!
I'm sure your solution will be a simple wiring change.

Alan
Thread: ML7 lost drive
29/07/2018 10:03:47
Thanks John, I agree the pulley does run warm and perhaps with the warmer weather it took it beyond the point of no return! I can still use it on 'normal' stuff but working on a 3 inch diameter highlighted the problem.

Alan
28/07/2018 19:39:40
Thanks for that, it is as I suspected, no longer enough of an interference fit!

Alan
28/07/2018 19:15:38
Using my ML7 this afternoon turning at a large diameter the chuck stopped. This is usually caused by the mandrel belt slipping as I don't have it that tight, but it wasn't, the belt/pulley was still being driven!
It would appear that the stepped mandrel pulley drives the smaller (brass) gear I am guessing that there is an interference fit within which has now failed (been ok for the last 60 years!)
Obviously a strip down is on the cards and I'm guessing the drive could be restored possibly with 'loctite'?
Anyone else encountered this problem?

Alan
Thread: Vauxhall Omega Aircon
02/07/2018 23:45:28
The coils are low resistance but could also have a diode across them and if connected the 'wrong' way round could well give you .5 ohm. I recently changed the coil on my Astra as it was 'open circuit' however once it was on the bench I discovered a thermal fuse fitted against the coil and it was this that caused malfunction - probably would have cost about 50p to fix if I had known earlier!

Alan
Thread: Dynamos - Reversing the polarity
16/06/2018 13:04:55
I repolarized my dynamo by briefly energising the field coils as described. The only unit I changed was reversing the coil connections, so that the HT came out '+'

Alan
Thread: Mobile Networks
30/04/2018 23:11:05
I am with 1p mobile, which uses EE network and works for me. PAYG 1p a minute calls, 1p a text and 1p a Mb. Minimum top-up ?10 and will last 3 months. Transfer existing number.

Alan
30/04/2018 19:25:21
Never had a problem with EE.

Alan
Thread: Polishing mops
28/04/2018 10:06:07
I think you will find 'hard' mops are sewn nearer the edge making for a more solid buffing wheel.

Alan
Thread: Lifting or hoisting a Myford Super 7
01/04/2018 14:05:55
I made jackable feet to go underneath the cabinet feet, with the bolts screwed down it's all solid, Unscrewing the bolts allows a platform with 2 nylon wheels down to the ground allowing the lathe on the cabinet to be moved - not easy but it does allow it all to be moved.

Alan

Edited By AJW on 01/04/2018 14:06:19

01/04/2018 14:05:54
I made hackable feet to go underneath the cabinet feet, with the bolts screwed down it's all solid, Unscrewing the bolts allows a platform with 2 nylon wheels down to the ground allowing the lathe on the cabinet to be moved - not easy but it does allow it all to be moved.

Alan
Thread: 6" Burrell, Finished at last !
15/03/2018 21:44:44
Real dedication, what a machine! Super.

Alan
Thread: I fancy a new engine
15/03/2018 09:45:07
Size does matter!

Alan
14/03/2018 22:07:55
Thanks for the link Rod, I see it's 1 1/2 bore and 2 inch stroke! A nice size.

Alan
14/03/2018 20:35:09
Thanks! The Wyvern and Centaur in particular are the sort of engine I was after. Found some running on YouTube and they can sound great I thought although I haven't been able to find the bore/stroke of the Centaur? have any of you built one? and is it possible on an ML7 with a milling head attachment?

Alan
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