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Case Tractors Discussion Forum

Can I change 930 LP to diesel?

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Craig Merchant

08-03-2007 01:43:08

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I have a 930 LPG, 8-speed, 930 and an old 930 diesel engine with a hole in the side of the block, can I convert the LPG block to diesel?

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Jeff From WI.

08-05-2007 07:50:29

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 Re: Can I change 930 LP to diesel? in reply to Craig Merchant, 08-03-2007 01:43:08  
Hi Craig, Do you want ot sell the LP Gas engine? Thanks Jeff.

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08-04-2007 08:19:14

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 Re: Can I change 930 LP to diesel? in reply to Craig Merchant, 08-03-2007 01:43:08  
[quote="Camboted"](reply to post at 18:21:06 08/03/07) [/quote

Sounds like a lot of trail and error which may work if you have all the correct equipment and tools. I like the easy way out since I don't have lots of tools and that would be either buy me a diesel tractor or buy one that has a bad trany and swap engines. I know the diesel is probably better fuel economy but would the lp still provide better pulling power if tuned right??


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Walt Davies

08-03-2007 18:08:06

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 Re: Can I change 930 LP to diesel? in reply to Craig Merchant, 08-03-2007 01:43:08  

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08-03-2007 17:17:06

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 Re: Can I change 930 LP to diesel? in reply to Craig Merchant, 08-03-2007 01:43:08  
Would need lots of additional parts. The 930 gas was a 377 and the diesel a 401. The heads are different and I think you need to redrill some of the head bolts as they are different. The 900 had the same 377 cubic inch in the gas and diesel. Would be better switching it to a straight gas.

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08-03-2007 05:36:24

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 Re: Can I change 930 LP to diesel? in reply to Craig Merchant, 08-03-2007 01:43:08  
If the casting numbers on the blocks are the same and assuming that no one has altered either one from their OEM status, you should be able to change it over.

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08-03-2007 18:21:06

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 Re: Can I change 930 LP to diesel? in reply to comfortking, 08-03-2007 05:36:24  
We did one, and the casting numbers were different, but the heads bolted on. That is the main concern. The engine will work if you change the cam, heads, intake manifold and add the injector pump, etc. BUT, it will be a 377 not a 401, now, if you want to put in the diesel pistons, you can have the sleeves bored out. The sleeves from the diesel block would not work in the LP block because the base was slighly smaller. The sleeves are thick enough to stand the boring and worked fine. We put in 1030 size pistons and still had enough sleeve thickness. The cams are timed slightly different, but everything else is the same except the gear has governor weights on it. We used the diesel cam with gear. LOL!

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