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A Cat 9500G Power Unit
A Cat 9500G Power Unit
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Posts: 235
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Thank you received: 123
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1 year 10 months ago #244496
by brian18a
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.
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1 year 10 months ago #244501
by 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
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1 year 10 months ago #244502
by 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.
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1 year 10 months ago #244507
by rax200
It looks great
Pictures please of the inside.
Regards
Daryl
1937 RD4 4G4368
1940 D4 7J3717
1942 D4 7J9915SP
1942 R4 6G2550SP
1944 D4 2T6584SP
1945 D4 2T8978SP
1946 D4 5T6271
1956 D4 7U37855
1954 DH226 S/N 89 Howard Tug
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Posts: 235
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Thank you received: 123
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1 year 10 months ago - 1 year 10 months ago #244517
by brian18a
Picture are during disassembly of engine.
Last edit: 1 year 10 months ago by
brian18a. Reason: remove too many pictures
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Posts: 814
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1 year 10 months ago #244518
by rax200
Hi Brian18a,
That is going to look magnificent when it is finished, thanks for sharing.
Regards
Daryl
1937 RD4 4G4368
1940 D4 7J3717
1942 D4 7J9915SP
1942 R4 6G2550SP
1944 D4 2T6584SP
1945 D4 2T8978SP
1946 D4 5T6271
1956 D4 7U37855
1954 DH226 S/N 89 Howard Tug
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Posts: 235
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Thank you received: 123
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1 year 10 months ago #244528
by 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.
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1 year 10 months ago #244530
by neil
Brian, was there a part exposed that allowed all that material in there? I can't imagine it came from running operations
Cheers,
Neil
Pittsford, NY
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1 year 10 months ago #244558
by brian18a
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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Thank you received: 123
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1 year 10 months ago #244619
by brian18a
IMost of it has anew shiny coat of silver paint now. Block will go back in its skid and reassembly will start.
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A Cat 9500G Power Unit
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