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Joined: Feb 2007
Posts: 860
ChatMaster - 750
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OP
ChatMaster - 750
Joined: Feb 2007
Posts: 860 |
The vacuum canister that operates the starterator,and the vacuum canister that operates the advance on the distributor appear to be identical in appearance. After disassembling them, the only difference I can see is the length of the tension spring in the vacuum port. Could this be true?? According to application the parts book lists different part numbers.
hoppy
"Four-Doors-Forever"
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
They may appear to be the same, but as you have found they have a different spring in each one. The spring was calculated to be used at only one task and they are NOT interchangeable.  
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
I often wondered about the same thing. I agree that the major difference would be the spring tension. Would be easy enough to try a vac. advance unit on the Starterator and see what happens.
Gene Schneider
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Joined: Jul 2004
Posts: 67
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Jul 2004
Posts: 67 |
I used mine on my starterator just to get the car started and it worked with no problems. I had both rebuilt and I don't have the slighest clue where I installed them when I got them back. Both are working fine.
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
My thoughts on the situation is that the one with the stronger spring would be installed on the distributor and the weak spring on the starterator. My reasoning is that the distributer needs slow changes in operation where the starterator needs instant reaction and return to rest.
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Jul 2008
Posts: 37
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Jul 2008
Posts: 37 |
i used vacuum control unit 1854040,swaped the spring out of the original 1848515 unit and works perfect.
man made it,man can fix it.
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Joined: Jul 2010
Posts: 387
Backyard Mechanic
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Backyard Mechanic
Joined: Jul 2010
Posts: 387 |
Is there any way to see some pictures of the work on the vacuum unit?
Don
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