Back In The Shop......Now What's On Your Bench????

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gaspipe

gaspipe

Expert Beer Drinker
Joined
Oct 29, 2014
Messages
217
Location
Hooterville, TN
Same Shindaiwa 577 is still on the bench. I only get a little time to work on it between my real jobs, but here goes tonight's thrilling session:

After I put the crank halves back together, I masked off a few bits, and sprayed on a few light coats of rattle can paint...Ever press in a Shindaiwa piston pin? They are tight. So under the suggestion of Four Paws, I made a wrist pin press from a 3" clamp. I knocked the end off the clamp, swaged on a couple flat 5mm washers, and turned a spacer pin on the little Pratt & Whitney lathe.

IMG_20150319_172407-L.jpg


Said pin, now pressed in, with a new Shindaiwa piston kit - so all new OEM piston, wrist pin, circlips, wrist pin bearing, thrust washers and rings. All brandy spankin' new. Piston ring compressor? My fingers. They've always worked good enough. I deleted the base gasket, and wish I'd spent the time to take a little off the bottom of the jug or the crankcase base, but hey, it's just a work saw - my work saw. Hondabond HT seals the base of the jug now. Then, I reinstalled the exhaust studs with some locktite.

IMG_20150319_172308-L.jpg


IMG_20150319_172634-L.jpg


I did a muffler mod, dusted the can in the blaster, and sprayed on a new coat of VHT paint. And on went the muffler. These old 577's have a pretty decent muffler as it is, but there's always room for improvement.

IMG_20150319_173217-L.jpg


Time for more mechanic's fuel....
 

CFM

jack of all trades...master of none
Joined
Mar 1, 2011
Messages
109
Location
new york
Still can't find the info I'm looking for as far as the actual squish band demensions... Bell's book is mostly bike/cart info. I'm guessing a 4-5mm wide band? Not sure how thick... Seeing as it's a flat piston I'm guessing no need to angle it toward the combustion chamber center(?).... I'm going with a hemispherical chamber with the plug in the center. Now the area between the center chamber and band should be tapered in towards the center I imagin right??? Some many questions :dumb2:
 
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