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A Cat 9500G Power Unit

A Cat 9500G Power Unit

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brian18a
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My 9500G PU leaving for restoration a number of years ago. Came from Los Gatos CA, where it powered a pump to irrigate a 35 ac orchard. It survived sitting under an oak tree for many years, after ranch was subdivided. Hopefully it makes it to Santa Margarita this year fully restored. [attachment=70450]cat 9500G leaving b.jpg[/attachment][attachment=70451]cat 9500G leaving.jpg[/attachment]
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Thu, Jan 12, 2023 11:28 PM
DavidTallon
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Nice to see one like that in original colors, with the side curtains no less. Would you say it was originally a metallic silver/aluminum or a light gray? I have seen both.

Dave
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Fri, Jan 13, 2023 7:28 AM
brian18a
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Reply to DavidTallon:
Nice to see one like that in original colors, with the side curtains no less. Would you say it was originally a metallic silver/aluminum or a light gray? I have seen both.

Dave
It has only the original coat of paint and it is silver and black. Later power units appear to have been gray.
It has been sandblasted to bare metal and is recieving a new coat of silver and black paint.
A remarkably unmodified unit, and internally in good condition, other than badly pitted timing gears, and the normal fried exhaust manifolds.
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Fri, Jan 13, 2023 8:04 AM
rax200
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Reply to brian18a:
It has only the original coat of paint and it is silver and black. Later power units appear to have been gray.
It has been sandblasted to bare metal and is recieving a new coat of silver and black paint.
A remarkably unmodified unit, and internally in good condition, other than badly pitted timing gears, and the normal fried exhaust manifolds.
It looks great

Pictures please of the inside.

Regards
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Fri, Jan 13, 2023 9:45 AM
brian18a
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Picture are during disassembly of engine. [attachment=70479]IMG_8292.jpg[/attachment][attachment=70480]IMG_8463.jpg[/attachment][attachment=70481]IMG_8501.JPG[/attachment][attachment=70482]IMG [attachment=70482]I_8306 (2).jpg[/attachment][attachment=70483]IMG_8308.jpg[/attachment][attachment=70484]IMG_8506.JPG[/attachment] [attachment=70485]IMG_9753.jpg[/attachment][attachment=70486]IMG_8613[686].jpg[/attachment]
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Fri, Jan 13, 2023 11:14 AM
rax200
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Reply to brian18a:
Picture are during disassembly of engine. [attachment=70479]IMG_8292.jpg[/attachment][attachment=70480]IMG_8463.jpg[/attachment][attachment=70481]IMG_8501.JPG[/attachment][attachment=70482]IMG [attachment=70482]I_8306 (2).jpg[/attachment][attachment=70483]IMG_8308.jpg[/attachment][attachment=70484]IMG_8506.JPG[/attachment] [attachment=70485]IMG_9753.jpg[/attachment][attachment=70486]IMG_8613[686].jpg[/attachment]
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Hi Brian18a,
That is going to look magnificent when it is finished, thanks for sharing.

Regards
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Fri, Jan 13, 2023 1:45 PM
brian18a
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Some more pictures. It is unbelievable how much crud was in the timing gear cover. No wonder timing gears are so pitted and engine would not rotate. One of the dangers of trying to start an engine, when you cannot see serious issues. [attachment=70495]9500g block.jpg[/attachment][attachment=70496]9500g timing cover.jpg[/attachment]
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Sat, Jan 14, 2023 12:19 AM
neil
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Reply to brian18a:
Some more pictures. It is unbelievable how much crud was in the timing gear cover. No wonder timing gears are so pitted and engine would not rotate. One of the dangers of trying to start an engine, when you cannot see serious issues. [attachment=70495]9500g block.jpg[/attachment][attachment=70496]9500g timing cover.jpg[/attachment]
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Brian, was there a part exposed that allowed all that material in there? I can't imagine it came from running operations
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Sat, Jan 14, 2023 12:32 AM
brian18a
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Reply to neil:
Brian, was there a part exposed that allowed all that material in there? I can't imagine it came from running operations
No engine was well sealed. Behind the rear main bearing looked the same. It is basically solidified oily sludge. The gas cats tend to get this way.from the days of non detergent oil, and very poor crankcase ventilation. The front timing gear case is is almost sealed off from the crankcase, just a small opening next to camshaft and a drain passage to crankcase. Also very limited oil flow, just what leaks out of front main. So only semi clean areas are where oil is thrown off gears, or off connecting rods.
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Sat, Jan 14, 2023 10:53 PM
brian18a
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IMost of it has anew shiny coat of silver paint now. Block will go back in its skid and reassembly will start. [attachment=70620]more silver a.jpg[/attachment][attachment=70621]more silver b.jpg[/attachment][attachment=70622]IMG_9775 b.jpg[/attachment][attachment=70623]IMG_9773 b.jpg[/attachment][attachment=70624]IMG_9776 b.jpg[/attachment][attachment=70625]more silver c.jpg[/attachment][attachment=70626]IMG_9774 b.jpg[/attachment]
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Mon, Jan 16, 2023 9:54 AM
Bruce P
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Reply to brian18a:
IMost of it has anew shiny coat of silver paint now. Block will go back in its skid and reassembly will start. [attachment=70620]more silver a.jpg[/attachment][attachment=70621]more silver b.jpg[/attachment][attachment=70622]IMG_9775 b.jpg[/attachment][attachment=70623]IMG_9773 b.jpg[/attachment][attachment=70624]IMG_9776 b.jpg[/attachment][attachment=70625]more silver c.jpg[/attachment][attachment=70626]IMG_9774 b.jpg[/attachment]
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Fantastic! Thanks for the pictures.
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Mon, Jan 16, 2023 10:36 PM
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