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Post by tjthechainsawmech on May 22, 2018 23:42:38 GMT -5
Well tonight I got a decent amount of parts blasted. Hoping to finish the blasting this week. Have to bring some tools home from the shop to get things completely torn down for blasting. Bench is covered in 990 parts lol So far this saw has been a breeze to clean up. Really helps when parts are in decent shape to begin with. There is still a fair amount of pitting on some parts. Worst so far is the back of the throttle handle, but since it will be a runner I'm not concerned. Decals have been ordered and I found a helper handle!!! More to come soon. 001 by TJ McCauley, on Flickr 002 by TJ McCauley, on Flickr
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Post by scotts2000 on May 23, 2018 0:35:55 GMT -5
Looks like a good start.. My Fav series of saw.
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Post by tjthechainsawmech on May 23, 2018 7:57:32 GMT -5
Looks like a good start.. My Fav series of saw. Thanks, they are one of my favorites as well.
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Post by tjthechainsawmech on May 26, 2018 22:31:41 GMT -5
Well we have one HELL of an update today.....went from blasted parts to a mostly painted saw. lol Only a few more parts to go at this point. I have a starter cup on the way that will have to be blasted and painted when it shows up, but that will all happen when the decals show up so I can clear over them. Anyhow....here's a ton of pictures for you all. Today's work and the helper handle for the bar showed up! Super excited to get this one going....and Man is that clear day and night better. 003 by TJ McCauley, on Flickr 004 by TJ McCauley, on Flickr 005 by TJ McCauley, on Flickr 006 by TJ McCauley, on Flickr 007 by TJ McCauley, on Flickr 991 by TJ McCauley, on Flickr 993 by TJ McCauley, on Flickr 994 by TJ McCauley, on Flickr 992 by TJ McCauley, on Flickr
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Post by scotts2000 on May 26, 2018 22:39:43 GMT -5
Wow paint looks superb! Your work makes me really want to dig into one of my own. This 909g is next for paint
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Post by Deleted on May 26, 2018 23:02:17 GMT -5
That's some awesome looking work TJ!!!
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Post by tjthechainsawmech on May 26, 2018 23:31:00 GMT -5
Wow paint looks superb! Your work makes me really want to dig into one of my own. This 909g is next for paint That is a very worthy candidate for a resto! In great shape to....and complete!
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Post by tjthechainsawmech on May 26, 2018 23:32:35 GMT -5
That's some awesome looking work TJ!!! Thanks buddy!
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Post by scotts2000 on May 26, 2018 23:34:34 GMT -5
Yes indeed good saw..runs well only needs to be dolled up now...
I was curious how the paint holds up on cylinder head as i noted yours was beatifully painted ..
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Post by Deleted on May 26, 2018 23:44:51 GMT -5
They make high heat paint up to 2000 degrees, I guess if it was run for a little while we could see, but the true test is if it was used regularly. Later saws had very little of the cylinder showing and therefore not much a need to paint them. I would have thought bead blasting them would look the same as painting
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Post by scotts2000 on May 26, 2018 23:48:47 GMT -5
Good points...as of so far any resto work i have done i have left cylinders raw..the painted head looked nice though...
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Post by Deleted on May 27, 2018 0:09:00 GMT -5
Good points...as of so far any resto work i have done i have left cylinders raw..the painted head looked nice though... You may not be able to bead blast a cylinder head or it might have to be done very carefully, I don't know
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Post by sweepleader on May 27, 2018 6:32:23 GMT -5
Painting a cylinder would not be high on my list unless the saw was not going to be run. It adds a layer of insulating material that will raise the cylinder and piston temperatures. Bare, clean metal will shed heat faster. Blasting would remove everything leaving clean metal to develop a layer of oxide. That would likely be the most effective heat transfer surface other than some rocket science magic. That saw sure looks great, it will be very nice when it is done.
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Post by onlyhomelites on May 27, 2018 7:56:09 GMT -5
I've soda blasted and aluminum-oxide blasted cylinders and they end up just a bit "rougher" than a clean factory part. You've got to be damned careful not to blast into the cylinder though. I'm sure there's many ways to protect them, but I like to stuff the bore rock-solid with newspaper and then the ports for good measure. The cylinders had some sort of anti-corrosive coating from the factory that tinted them that dull, faded bronze look. No idea what it was though.
TJ I can't wait to see that saw in person next weekend! It's already looking top notch!
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Post by tjthechainsawmech on May 27, 2018 9:27:25 GMT -5
Yes indeed good saw..runs well only needs to be dolled up now... I was curious how the paint holds up on cylinder head as i noted yours was beatifully painted .. I used a high temp engine paint on the cylinder and muffler housings. I've had great luck with duplicolor engine paints holding up to heat, cold, wet, and oily elements. My GMC's v6 is over 2 years on the paint and not a chip or scuff.
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Post by tjthechainsawmech on May 27, 2018 9:29:38 GMT -5
They make high heat paint up to 2000 degrees, I guess if it was run for a little while we could see, but the true test is if it was used regularly. Later saws had very little of the cylinder showing and therefore not much a need to paint them. I would have thought bead blasting them would look the same as painting This media is leaving a dull sand color finish on everything, If I converted to a soda media it would be much less gritty and I could blast and have the color of bare mag on everything. That is what this saw is about....testing durability on paints.
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Post by Deleted on May 27, 2018 9:30:45 GMT -5
Yes indeed good saw..runs well only needs to be dolled up now... I was curious how the paint holds up on cylinder head as i noted yours was beatifully painted .. I used a high temp engine paint on the cylinder and muffler housings. I've had great luck with duplicolor engine paints holding up to heat, cold, wet, and oily elements. My GMC's v6 is over 2 years on the paint and not a chip or scuff. I figured Dupli-color high heat engine enamel would hold up. I researched the cooling aspect of this a few months back and the effects are minimal on cooling
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Post by tjthechainsawmech on May 27, 2018 9:31:09 GMT -5
Good points...as of so far any resto work i have done i have left cylinders raw..the painted head looked nice though... You may not be able to bead blast a cylinder head or it might have to be done very carefully, I don't know I taped closed all the ports and the bottom of the cylinder. Worked nicely and with a good wash got all the dust out. Long as you don't blast the inside of the cylinder it'll be fine.
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Post by tjthechainsawmech on May 27, 2018 9:33:50 GMT -5
Painting a cylinder would not be high on my list unless the saw was not going to be run. It adds a layer of insulating material that will raise the cylinder and piston temperatures. Bare, clean metal will shed heat faster. Blasting would remove everything leaving clean metal to develop a layer of oxide. That would likely be the most effective heat transfer surface other than some rocket science magic. That saw sure looks great, it will be very nice when it is done. My 770gs build I left the cylinder raw, but at that time I worked at a shop with a soda blaster. That particular media is very fine and Perfect for blasting cylinder as it leaves a bar clean surface without a color change. This media I used is grittier which makes for easier work blasting paint off, but changes the color of the surface. I wanted to test out duplicolor's engine paint durability as well as I have had great success with them on my truck engines.
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Post by tjthechainsawmech on May 27, 2018 9:35:28 GMT -5
I've soda blasted and aluminum-oxide blasted cylinders and they end up just a bit "rougher" than a clean factory part. You've got to be damned careful not to blast into the cylinder though. I'm sure there's many ways to protect them, but I like to stuff the bore rock-solid with newspaper and then the ports for good measure. The cylinders had some sort of anti-corrosive coating from the factory that tinted them that dull, faded bronze look. No idea what it was though. TJ I can't wait to see that saw in person next weekend! It's already looking top notch! Thanks Leon! Half of me wants to just finish it without the decals and put it back together for this weekend. haha But then the other half wants me to do it right....grr decisions decision!!!
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