Cylinder De-glaze

[Crank]

Got some info on another forum on how to de-glaze a Nicasil cylinder.

They recommend using dawn soap and a green dishwashing scourer.

Now, anybody in SA knows what dawn soap is and what our alternative might be?

Thanks

[kr-rz350]

Dishwashing soap used in the USA
(first contribution )

[Crank]

Thanks.
Thought as much.

Any advice or a reason not to use that method, I don't see dishsoap messing with Nicasil.
Don't want to hone, fairly high mileage cylinders and I am sure that it's still the factory Nicasil.

[Edd]

Hi Crank;

I will personally rather go one oversize as nickasilling is very expensive and boaring will be relatively cheap comparing. You are rebuilding the top end you will need new rings and pistons any way. Dont think ajax will cut it

Edd

[Crank]

Hi Edd

Dont think I could go oversize on a 3XV if I wanted to, the only replacement piston is OEM so nicasil is the only option.

I am putting in new rings on used pistons for the time being, measured the cylinders and they are still within spec, but not by much,
so dont want to hone and risk going over, hense the very light deglaze with the kitchen products! lol

[Neal]

You are looking for a piston to bore clearance of 0.04mm or 0.05mm . Scotch pad and soapy water works ok .

[EEKNOWS]

Unfortunately a scouring pad will ruin any honing left. Ring Bruce at NSC and he'll tell you just how hard friggin plating is, which is about as hard as a Cape Buffalo's head. You need to run a hone through it, you need one with VERY soft stones, typicaly it takes about 15-20 passes with a crap old hone to restore the cross hatch and take 0.01mm from the bore. With a proper diamond hone it's in and out.
Scourer is OK after a seizure in between races at the track.

[Neal]

Eish , i saw them doing it at the track and thought thats how it is done