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Farmall & IHC Tractors Discussion Forum
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IHC 674 diesel timing marks ** HELP**

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Allan Brunell

03-22-2005 17:53:41




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Rebuilding a 4cly diesel and want too set timing for injector pump correct but only 1 mark on gear adjacent too injector pump and 6 marks on inj gear markings are 1,2,,3 4,5 6 which marks do you line up on all the gears some have 2 dots and crank has a slot thanks soooo much




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JB2

03-22-2005 20:03:35




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 Re: IHC 674 diesel timing marks ** HELP** in reply to Allan Brunell, 03-22-2005 17:53:41  
Hi Allan, according to my IT shop manual:
The pump drive gear is used on several different engines and is equipped with six timing marks. On the D239 (674,684), D246 and D268 engines use the timing dot next to the number 4 on the drive gear.

There is a picture in the book showing the following timing gears: crankshaft, idler, camshaft and injection pump.

Timing marks are as follows:

dot on crankshaft just slightly past 12 oclock, aligning with dot on idler just past 6 oclock,
dot on idler at 10 oclock aligning with dot on camshaft at 4 oclock and dot on idler at 3 oclock aligning with dot by number 4 on injection pump gear.

Hope this helps
JB2

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