? On cylinder final hone grit for rings

[Keaten]

Getn ready to hone cylinders on merc 2.0 it's stock bore has lil cross hatch left, should I start with 80-100 grit then finish with 400? Or does it need some courser.. main question is the final grit # using merc rings I guess there molly ? Bc there bore is steel

[Keaten]

396365This is wat ive got now..396366

[powerabout]

you need a a ball hone ( just to round up the ports), 4 stone keyway hone, and a finishing/plateau brush used in that order

[Keaten]

Ok thank you.. wat grit on the ball hone looks like 180 or 320 ? Then wat grit on the stone hone ? On the finishing brush looks like there all same grit ?

[faztbullet]

I would 'mike' that hole.....

[powerabout]

Ok thank you.. wat grit on the ball hone looks like 180 or 320 ? Then wat grit on the stone hone ? On the finishing brush looks like there all same grit ?
measure for size and check if out of round
220 to round the ports so go both ways
320 with keyway hone
plateau brush
dont use synthetic for a tank full or so.

[Keaten]

Ok thanks guys for all the info..

[FUJIMO]

we used to call them a dingle-berry hone, lol.

[powerabout]

Merc used them on the il6 production line.
Can you post a photo of a dingle berry in full bloom?

[Capt.Insane-o]

https://goodson.com/collections/ultra-finish-hones/products/ultra-finish-soft-hones?variant=33471791750

I use these on servicable bores with ATF. 12-15 strokes on each hole only. Not a big fan of dingle ball hones.

[W2F a V-King]

measure for size and check if out of round
220 to round the ports so go both ways
320 with keyway hone
plateau brush
dont use synthetic for a tank full or so.

That plateau brush looks interesting, never used one before. Do they last very long before they loose shape?

[H2OPERF]

They work great and give a nice finish to you port chamfers.. I use it before the initial hone on a bore/port job to really get the chamfers looking nice and then after final hone for the plateau finish.. great tool, personally never have used a miniball/dingleberry in a 2 stroke some people love em..Dave

[FUJIMO]

Merc used them on the il6 production line.
Can you post a photo of a dingle berry in full bloom?
http://i1152.photobucket.com/albums/p497/johntice1/082f2646-cb74-4be1-ad51-ed58b2089854.jpghttp://www.brushresearch.com/images/engine_hone_crosshatch.jpg

[FUJIMO]

http://www.saturnfans.com/photos/data/650/11380Saturn0479.JPG

[FUJIMO]

https://images-na.ssl-images-amazon.com/images/I/41qSjCFRX4L.jpg...Amazon should have them...

[W2F a V-King]

Very familiar with dingle berry hones, it's what I have used in years past.
Not having a plateau in hand to compare...why is the plateau better? Or is it just a preference thing?

[Keaten]

Wat angle cross hatch works best on the mer v6 I've got mine around 40-45 deg.

[powerabout]

Very familiar with dingle berry hones, it's what I have used in years past.
Not having a plateau in hand to compare...why is the plateau better? Or is it just a preference thing?
plateau does what is says to smooth the bore from any high parts that the other tools cannot do
http://www.enginebuildermag.com/2000/09/cylinder-bore-surface-finishes/

(http://www.enginebuildermag.com/2017/10/assembly-fastening-lubes-dont-underestimate-importance-proper-lubrication/)http://www.elcometer.com/en/coating-inspection/surface-cleanliness-surface-profile/surface-roughness/elcometer-7061-marsurf-ps1-surface-roughness-tester.html