Yami´s engine thread

[Mezo]

I should add, its not rusted in position, its jack stuck there with old oil.

just squirt WD40 (or similar) and let it soak, then slip something slim (thin) underneath.

Mezo.

[Yami]

Missed your answer completely Actionman. Had pressed quote button a long time Before and returned some time after to finish writing to Mezo.
Thanks both of you. I will use a magnet or WD40 as well if needed tonight.

[Yami]

Yes, a magnet was all it took to get it out. Hard to know before when never done it though.
The rest has to stay in place. I read that was a bit difficult doing.
Both are really nice inside, black smooth colour, looks like new, so I have decided not to
sandblast it inside. Only outside and in the valve areas.
I really wonder what kind of colour they have on the inside that is so good sticking?







Rocker cover and valve cylinder is dismantled and bagged in numbered cases.





Next up sandblasting.

[xtrider]

It would be powdercoating they do at the factory from what I've seen or it looks like it. It holds up to a lot of abuse, that's why I got my own system , no more paint!




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[Yami]

It would be powdercoating they do at the factory from what I've seen or it looks like it. It holds up to a lot of abuse, that's why I got my own system , no more paint!

So it´s powdercoating that´s the thing to do the Engines with.
Read your post somewhere where you got yourself a little owen. Really smart for the small stuff.
I will consider that as well, both get an Owen and powdercoat engine stuff. Thanks man.

[Yami]

Sandblasted yesterday but could not get access to the forum after 18 hours Stockholm
timezone. That will be beginning of the night in Perth I think. Info for you Mezo, got to be something that´s happening
over there at your late evening or night.


Did not get away all paint though. Need better light in my blaster box, almost blind
in there not seeing small spots. If I use common paint I know it doesn´t matter having
som small paint dots left but how is it when gonna powdercoat?





How hard can I go cleaning up these ones?
Some machine tool? Dirt has really stuck there. I have scraped this one carefully with a blade but
can´t get it all off.

[Mezo]

Stick it in a battery drill & hold sandpaper against it (safest method) or stick in mains pillar drill & do the same, watch you don’t take your finger off, i have seen it happen.

If doing this in mains powered drill or a lathe, the strip of sandpapaer can snatch & take your thumb clean off, Ask Bob Newby

Mezo.

[xtrider]

I've been sanding on lathes for 25+ years , still have 8 fingers left (actually caused by a wood jointer), ket is to never have the paper long enough to really wrap or have your finger(S) at the trailing edge aka not much paper behind according to the rotation direction.

For the valves I use my Dynafile and fine sanding belt then a polishing belt.http://www.amazon.com/Dynabrade-14000-D ... s=dynafile , A tool that has paid for itself a hundred times already, of course it was only $350 when I bought mine.

For the question on how clean for powdercoating, it needs to be bare metal. The powder is static charged coming out of the gun and any paint on the surface will cause it to not stick, so you'll have spots of no coating any place that had a spot of paint yet. There is a way around it with a special liquid solution (similar to thinner, but it isn't), the powder is mixed in it and gets sprayed from a regular paint HVLP sprayer so coverage is just like paint, It is allowed to dry and then baked like normal. Pricier to do but sometimes it is best for complete coverage.

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[Yami]

Great tip guys, thanks. I figured it was some kind of sanding work when the material is so hard.

So, one more go with the sandblaster then I guess. I wanna have a really nice Engine for the #1 bike in my build thread.
Powdercoating must be the answer to that. Last time it looked nice with regular paint but it didn´t hold for long.

[Mezo]

I've been sanding on lathes for 25+ years , still have 8 fingers left (actually caused by a wood jointer), ket is to never have the paper long enough to really wrap or have your finger(S) at the trailing edge aka not much paper behind according to the rotation direction.

I only wrote that as a warning to anyone reading this, it can & has happened even to the most experienced machinist so been warned.

Mezo.