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Case Tractors Discussion Forum

930 gasket/ O Rings

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R Wyler

04-20-2009 10:33:09

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Going to get the pistons back in my 64 930 lpg today and I opened the gaskets up sorting through them and my parts book and manual is not real clear. I will try to add pics here and if not I will post the link to my photo bucket page they are at the top. I found the tiny ones for the oil line inlets on top the heads. I know some are for the water passages there are six each of the ones pictured and where to those six little copper rings go?? Sorry for the questions this is the first time I ever had one of these apart and I really dont want to go together incorrectly or incomplete. I will post the link to my photo page if the attachments dont work. I really appriciate any help I will be back later on this afternoon to check in I will be putting in pistons in the mean time. Should I use some sealer on these gaskets? Thanks again for the help I am in a pinch here.

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04-20-2009 13:12:28

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 Re: 930 gasket/ O Rings in reply to R Wyler, 04-20-2009 10:33:09  
The copper rings are for diesel fuel injectors, the other gaskets are hard to tell with out sizing them. I would say/guess the flat rubber rings go with the head gasket for the coolant (on head opposite side of push rods) the other orings are for plugs, like diesel fuel pump alignment. Just guessing on them......

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R Wyler

04-20-2009 19:18:27

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 Re: 930 gasket/ O Rings in reply to Nedd, 04-20-2009 13:12:28  
Thanks Nedd yes I looked at the book again today and layed one of the gaskets on there and finally figured it out. Each head has 3 rings one for the oil passage and two for the outer openings for the outer push rods.

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04-21-2009 14:46:08

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 Re: 930 gasket/ O Rings in reply to R Wyler, 04-20-2009 19:18:27  
Not seen any for just 2 pushrods. Try the opposite side of the head gasket. There should be 2 coolant holes there. But there are many companies making gaskets. You probably have it right. Good luck

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R Wyler

04-27-2009 20:57:49

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 Re: 930 gasket/ O Rings in reply to Nedd, 04-21-2009 14:46:08  
I checked again to make sure and that is the only direction those gaskets can go on and according to the books there are two O Rings for the two outer push rod openings and one O Ring for the oil passage.

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R Wyler

04-20-2009 10:37:11

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 Re: 930 gasket/ O Rings in reply to R Wyler, 04-20-2009 10:33:09  
Also if you can tell me what and where these gaskets and rings go just call them 123 from left to right on those top pics and I will know which is which easily. The link should work the pics wouldnt post and I dont have time to waste. Thanks again :)

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Jimmie D. Phelps

04-20-2009 12:08:55

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 Re: 930 gasket/ O Rings in reply to R Wyler, 04-20-2009 10:37:11  
I can't tell where they go, but I was told by a good mechanic that you should use CRISCO on the O rings, both the little ones and the O rings at the bottom of the sleeves. Grease or oil will stretch the O rings and they will leak or not fit.

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R Wyler

04-20-2009 19:15:46

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 Re: 930 gasket/ O Rings in reply to Jimmie D. Phelps, 04-20-2009 12:08:55  
Yes Jimmie that is what my mechanic friend told me to do. I used it on the sleeve O Rings when I put it together. Non petroleum is indeed the way to go on them.

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