ESE's works engine tuner

[Roflhat]

What porting tools do you use? Needing to get a new dremel anyway
Will try find an earlier ignition, would prefer plug and play

[philou]

http://www.ccspecialtytoolstore.com/...tool-s/327.htm

[TZ350]

.



We started with a lot of long series drills and cutters with long 6mm shafts.

CC Specialty Tools is the best and is now what we like to use. Took a while before we could afford them.

[TZ350]

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Found an answerer to my no suck problem. Going to try to just pump it in.

Doing away with the solenoid and going to use the PWM signal from the Ignitec ignition's power jet control to run the pump at whatever speed is required at the time.

[wobbly]

The Foredom flex shaft and motor kit from CC is an insane ripoff.
You can buy the exact same part on several Chinese websites for less than 1/4 the price.
Ive had two for a couple of years now with no issues at all, and I use them near on every day.
The HD Dremel flex shaft parts have been NLA for ages - I searched the net for weeks and bought what I could , but now , nothing anywhere since the company was sold to Bosch.
The Foredom flex shaft parts are cheap , but wont fit the Dremel so I have two perfectly good HD Dremel motors I cant use.

[husaberg]

I seen a flex shaft the other day?

https://www.bunnings.co.nz/dremel-fl...hment_p0730737

sorry hd?

what does the HD look like the old original ones?


Have you tried one of those bench grinder driven shafts?
they are slow and more Hp so the drive should be higher rated

if you wanted a HD one maybe a shearing plant drive set up?
oh look Maybe $600 maybe not.
https://shearquantity.com/downtubes-...iveshafts.html
Still spendy at half the price
https://www.shearing.co.uk/product-c...exible-drives/

[philou]

the 1mc of cc spécialité tools and cheaper in Germany.

https://www.piggyshop.de/winkel-hand...2-35-3-mm.html

attention there are several types of attachment for the flexible shaft.

the tightening nut at the back of the gearbox is in the open air. it can damage the cylinder wall.

put a piece of hose over it, for example. idea taken from Macdizzy

[Roflhat]

Some of the prices were a bit eye watering so I went for a 90 degree one like that from China, £65

[sniemisto]

I use NSK dentist angle piece from Chinese eBay. They are small enough to fit inside 50cc cylinder. Bearings won’t last too long with carbide burrs but they are also cheap. 2.35mm bits.

Straight 3mm bit grinder from Biltema is really good, lasts long and costs only 35€

[ceci]

.


Found an answerer to my no suck problem. Going to try to just pump it in.

Doing away with the solenoid and going to use the PWM signal from the Ignitec ignition's power jet control to run the pump at whatever speed is required at the time.

It is not a bad solution, but it can be a bit complicated to configure since you have to take into account the moments of inertia to start the pump and then the residual inertia to stop.
Why not try something simpler such as the pumping method of the STIHL MS 500i, but in this case carried out by the gravity of the fuel, as is the supply to the carburetor.

[TZ350]

Why not try something simpler such as the pumping method of the STIHL MS 500i, but in this case carried out by the gravity of the fuel, as is the supply to the carburetor.

Good idea. I like it very much May be where I end up.

[wobbly]

The original Dremel that everyone used for porting was called a 732 , that was the HD version originaly for wood carver types.
I found the 1MC right angle was big and hard to use - the NSK 182MC right angle and drive adapter for the flex shaft is more expensive but lasts alot longer and is alot smaller.
They are cheaper from other NSK distributors , just takes some time searching the web.

[philou]

the 182mc is referenced ic300 at NSK.

the 1mc is good for big jobs. a small one is needed in addition for the finishes and to intervene on the ports without the back of the tool coming up against the walls of the cylinder

[Condyn]

I elected for the ARTCO 1039 because I saw many reviews saying the CC Specialties hand pieces sound like they have rocks in them. The artco is smooth but there is a design flaw with the hollow shaft that threads into the ring gear. Only takes a split second down in a nook to snag your cutter and the flex shaft motor finds the weak link instantly. Snaps the $132 shaft at the thread and after you try to braze or solder it a dozen times with a magnifying glass you break down and order the part that takes 12 phone calls and a month to get. I would not buy this one again.

*edit I should not say this is an “ARTCO” because it is probably just sold by them with no label, parts list, or paperwork.

[jfn2]

Condyn
Would you please post a pic of your how you have your porting tool motor set up. I have the same tool and I never had any trouble with it or the flex shaft.