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Member postings for Graham Stoppani

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

Thread: What cleaning solution?
04/10/2020 07:57:26

Just a word of warning to anyone using brake cleaner as a degreaser who doesn't already know this. It often contains either Toluene, Xylene or both. They are extremely flammable.

I was the MD of an industrial chemical company and stored both products on site in bulk storage tanks. Our agreed strategy with the local fire brigade in the event of a fire was to firstly ensure all staff were accounted for and then stand back and watch the place burn to the ground!

An alternative to using hydrocarbons for degreasing is to use a heated alkaline bath (such as caustic soda) followed by a thorough rinse. The bath can be as simple as a pan on a stove or electric ring - but not an aluminium pan!

This is frequently used for the cleaning of metals before plating. Specialist suppliers such as YouPlate and Gateros can supply the chemicals in powder form for home use. GP1 Cleaner

Edited By Graham Stoppani on 04/10/2020 07:58:12

Edited By Graham Stoppani on 04/10/2020 07:59:20

Thread: Use of 2 front wheeled motorcycles on the TdeF
14/09/2020 07:37:00
Posted by Speedy Builder5 on 13/09/2020 20:47:19:

Must be nice being the competitors, gasping for every bit of oxygen with bikes and cars pumping out exhaust gasses just feet in front of them - crazy.

BMW have been providing electric scooters for the past couple of years for filming the Great North Run and other races in the UK.

Thread: Miracles do happen
28/08/2020 06:51:39

I lost a tiny black screw under the bench a while back. I hunted around for it crawling around with a torch until I finally found it lurking behind one of the rear bench legs. My joy was short lived. It was a DIFFERENT tiny black screw. Seems my resident gremlins have a warped sense of humour...

Thread: ultrasonic cleaning fluid ?
18/08/2020 17:29:28

I have just been experimenting over the last few days with an alternative way of using my ultrasonic bath based on some YouTube videos I have watched.

1. Fill the bath as normal with ordinary tap water at room temperature.

2. Get two or three small glass jars with lids and place the parts to be cleaned in them. (size of the part predicates the size of the jar).

3. Top up the jar with the solvent of your choice from white spirit to petrol so that the parts are fully immersed. (I have been using parafin)

4. Place the jars in the bath. It doesn't matter if they are floating or resting on the bottom of the wire basket.

5. Run the bath for about 15 minutes at a time and do not heat the bath. The water will warm up slightly with the ultrasonic action.

6. Remove the parts and inspect. Repeat the process again if further treatment is required.

SAFETY: The solvents used will not get much warmer than ambient temperature as long as the bath running times are kept short. They are in a sealed non-flammable container. There is a limited oxygen supply within the container. In the event of combustion the container is sat in a bath of water.

So far the results for me have been very good on mucky parts removed from a motorcycle.

Thread: Music in the Workshop
03/08/2020 09:37:36

I used to listen to Radio 6 in the workshop to break away from listening to what I already knew but found too many of the same songs repeating through the day. I now use a music streaming service on my phone with a bluetooth speaker.

I'm currently on a Frank Zappa marathon, listening to all his albums in chronological order. 62 albums release in his lifetime and another 50 posthumously...

Thread: Motorcycle racing - Mark and Sam in particular
19/07/2020 18:46:07
Posted by Barrie Lever on 18/07/2020 21:48:46:

Finally I will briefly describe the Ducati, it was a 500cc I think but it was a 'V' engine with the second cylinder only working in some kind of balancing capacity,

This is me grinning like a Ceshire cat having ridden one of the handful of road going Ducati Supermonos.

Ducati Supermono Strada

The bike has one cylinder but two con rods. The second con rod is connected to a counterbalance shaft to kid the engine that it is still a V twin. My good friend Alistair Wager of Britaliamoto builds these bikes.

Thread: Identifying the grade of silver solder.
15/07/2020 11:51:29

When I was gifted some solder of unknown provenance I used Archimedes Principle to work out the proportion of silver to lead. Fine for the more basic plumbers type solder but maybe not refined enough for a more sophisticated silver solders containing more than two types of metal.

Thread: Back issues & Flash plugin
10/07/2020 05:27:52


Thread: Spark plug lead
07/07/2020 05:17:58

In the motorcycle trade if we had a bike with a damaged HT lead that was bonded into the ignition coil we would use an in-line suppressor to connect the new cable to the old. (example below) This has an added benefit if not using a suppressed spark plug cap.



Thread: Ultrasonics and citric acid
30/06/2020 07:32:09
Posted by Neil Wyatt on 29/06/2020 20:19:47:

I've got some concentrated derusting fluid for my ultrasonic cleaner that I'm sure contains citric acid.

I usually use it at about 50C


I run my ultrasonic tank at 65C, so in the same ball park as Neil. As a side note, if you've put fresh liquid in your tank and are waiting for it to come up to temperature, its worth running the bath empty to degas it while it warms. This will increase the effectiveness of the bath.


Thread: Mild Steel Rod in Metric Sizes
15/06/2020 05:57:25


I've used these people recently to buy online and had a quick turnaround. They supply Imperial and Metric sizes and will cut lengths to order.

Thread: Ultrasonic toothbrushes
14/06/2020 05:41:25
Posted by Howard Lewis on 14/11/2019 19:53:06:

So US should be a good way to clean Fido's teeth, as long as not overdone. Possibly, water would be an effective conveyor of the US pulse, since this basically the main constituent of some US cleaning baths.

Give a product a fancy name and you can sell it for a vastly inflated price.

Or am I a cynic?


My company used to sell Ultrasonic baths - I'm not an expert in this area though. From what I can remember, plain old water worked just fine. Some additives would compliment the the cleaning through chemical action acting alongside the cavitation while others would reduce the cavitation. Can't remember which now as its around 25 years ago.

With regards the damage ultrasonics can do, a simple test to ensure the bath was working was to dip a piece of aluminium baking foil in the bath for a couple of minutes. If the bath was working there would be pin holes punched in the foil by the cavitation.

Thread: Interpreting these bearing blue patterns
14/06/2020 05:23:29

I tried this on my ML7 as well. Not as easy as I expected but a good learning experience. Here's a form thread about it. LINK

Thread: Storage of files
13/06/2020 09:29:00

Used a bit of left over Ikea shelving support to make a spacer for the files.

File storage

Thread: Hermes Parcels
10/06/2020 21:22:31

If you send goods by Hermes you probably don't want to watch this investigation by Joe Lycett on Chanel 4 a few weeks back...


Thread: DIY drip feed oiler for cutting fluid
07/06/2020 06:19:42

The bit I liked the best was the idea of using the tool holders behind the lathe to mount the oiler. That's an idea I'm stealing for future use

Thread: Arduino /C++ Questions...
05/06/2020 11:00:32
Posted by Neil Wyatt on 04/06/2020 16:45:15:

I'm a died in the wool lover of assembly language, just because...

Back in the dim and distant past when I was doing my Computing degree, one of the things we dabbled with was VAX assembly language. I remember students commenting on how friendly it was compared to some other languages. Where they would refuse to compile due to the smallest of errors 'String and string' being a good example the assembler would really try to execute your code however mangled it was. smiley

Thread: The story behind my forum image
03/06/2020 11:15:02

I had amnesia for a while following a motorcycle accident. My first recollection afterwards was being sat on the curbside in a large puddle of blood. Cautiously checking myself for injury I couldn't find anything amiss. I then realised it was the red TQF oil that had spilled out from a broken fork leg.

Later in the afternoon I was found wandering the streets in a daze pushing a broken motorcycle and taken in by a friend. While sat in her flat I was hallucinating watching a picture over her fireplace sliding from side to side across the wall. The next morning when I got home I was dragged of to A&E by my mum for X rays and such like.

It was only when I was contacted a few days later by the driver of the car I'd hit that I found out another vehicle was involved; the police and ambulance had been in attendance; and that I had refused to get in the ambulance or press charges against the driver that had pulled out on me.

Thread: Workshop Insulation Problem
08/05/2020 06:54:17

I can't comment on the structural side of things, but like Bazyle, I run a dehumidifier in my brick built double garage with an insulated flat(ish) roof. I have it set to 40% humidity and I'm collecting a couple of litres of water every two or three days to once a week depending on outside humidity.

I haven't seen any damp issues in the garage but I run the dehumidifier to help keep my motorcycles and metalworking equipment rust free rather than to deal with structural issues.

Thread: Arc's Website - Is it Just Me?
08/05/2020 05:45:07

Mine is fine too Chris


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