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01-21-2008 19:56:06

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I have a Case 1958 late model i have the heads casting number 8110 was wondering if they are good heads also i have the psb rotart pump any one know how to tune that thing up

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caseman-d

01-23-2008 20:10:57

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Re: Case900 in reply to comfortking, 01-21-2008 19:56:06

Americam Bosch were rotary style the german was in-line. The 900B got the inline at serial number 8141036 according to parts manual.

caseman-d

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LenND

01-24-2008 13:53:33

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Re: Case900 in reply to caseman-d, 01-23-2008 20:10:57

I think that sounds about right. Do you have an idea when they quit using that type? My cousin has a 930 Comfort King and it has the American Bosch rotary on that. Identical to my 1958 900B.

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LenND

01-23-2008 13:59:12

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Re: Case900 in reply to jh, 01-21-2008 19:56:06

The 1958 came with a round distributor type pump and the 1959 + early 930 came with the inline injector pump. But I imagine they could be changed for one to the other.

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hunter1

01-23-2008 10:07:50

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Re: Case900 in reply to jh, 01-21-2008 19:56:06

If you have a late b model - it would not have an american bosch pump. (unless the german bosch was swapped out)

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01-23-2008 14:21:54

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Re: Case900 in reply to hunter1, 01-23-2008 10:07:50

Whats the Differnce between the american bosh pump an the german pump how do u tell the differece

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caseman-d

01-22-2008 20:13:39

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Re: Case900 in reply to combinekid, 01-21-2008 19:56:06

How can you increase the rpms then. My experience is the 4 cylinders have plenty of power but the 6 cylinders lack the rpm's.

caseman-d

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LenND

01-22-2008 19:09:23

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Re: Case900 in reply to jh, 01-21-2008 19:56:06

When you loosen the yellow bolts don't slide it very far or you'll have to much fuel and loose power. I wonder how I would know that? LOL

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Jim From Calif

01-22-2008 16:30:58

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Re: Case900 in reply to jh, 01-21-2008 19:56:06

This is how you turn-up a Case Injector pump on a Case 800 PSB American BOSCH.

1.. Take the cover off (4 bolt cover) you will find yellow paint on (2) bolts. Loosen these bolts & move racket forward to get more fuel & back to pump less fuel.

2.. Yellow bolts can be taken out of hole & move moved forward to next hole to increase fuel more..

NOTE: If you put a whole lot more fuel in, you may want to change tips on the injectors. To bigger holes so it doesn�t load the head on the injector pump.

I assume a 6 port Injestion pump on the 900 is the same..

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01-22-2008 18:37:42

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Re: Case900 in reply to Jim From Calif, 01-22-2008 16:30:58

Thanks jim Dos that increse more rpms or just fuel

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Jim From Calif

01-22-2008 20:00:53

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Re: Case900 in reply to jh, 01-22-2008 18:37:42

This process just increases "Fuel" to the injectors, The RPM's are not changed.

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01-22-2008 21:35:14

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Re: Case900 in reply to Jim From Calif, 01-22-2008 20:00:53

Thanks Jim i took that cover off i didnt see any yellow paint but i found simlar to what u was talking about 2 screws @ the top with a slide adjustment mine was in the back 2 holes an slide all the way forward but the front 2 holes arent tapped out for the bolts to screw down into

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