Balance Shaft Alignment - Santa Fe 2.2 CDRI 2008 D4EB - Hyundai Forums : Hyundai Forum
 
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post #1 of 8 (permalink) Old 04-19-2019, 03:56 AM Thread Starter
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Question Balance Shaft Alignment - Santa Fe 2.2 CDRI 2008 D4EB

I removed the balance shaft assembly from by D4EB 2.2 Diesel engine and now need to re-install it. The service manual I have is not clear with regard to how the timing marks should be positioned and I would appreciate help.

I have two timing marks on the Balance Shaft sprocket that connects to the Crankshaft sprocket. One timing mark has two dots and the other a single dot. Photo attached.

There is a single timing mark on the smaller Balance Shaft Sprocket which can be aligned to either the single mark on the larger Balance Shaft gear or the double timing mark, the balance shaft will sit naturally in either position.

My question is which timing marks do I align prior to installing the balance shaft to the crankcase. I couldn't see a mark on the crankcase sprocket but may have missed it. The crankshaft is set at TDC.

Any help would be much appreciated.
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post #2 of 8 (permalink) Old 04-19-2019, 08:29 AM
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I'm not a mechanic so I don't really know if this helps you or not....

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post #3 of 8 (permalink) Old 04-19-2019, 10:00 AM Thread Starter
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Hi,
thank very much you for taking the time to respond.

The diagram you sent over comes from the workshop service manual that I have a copy of. It shows the internals of the balance shafts, and a great picture of how they should be aligned. In my case these sprockets are not visible as I am working with the full assembly (see page EM 59 in the same manual). In the manual it says "Pay attention to the timing marks on the driver gears of the balance shaft and the crankshaft" but doesn't have a diagram to explain how they should be aligned. I could be missing something obvious but I have read it about 5 times and still can't figure out exactly where to align all the sprockets.
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post #4 of 8 (permalink) Old 04-19-2019, 10:09 AM
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Originally Posted by andrewpsmith View Post
I removed the balance shaft assembly from by D4EB 2.2 Diesel engine and now need to re-install it. The service manual I have is not clear with regard to how the timing marks should be positioned and I would appreciate help.

I have two timing marks on the Balance Shaft sprocket that connects to the Crankshaft sprocket. One timing mark has two dots and the other a single dot. Photo attached.

There is a single timing mark on the smaller Balance Shaft Sprocket which can be aligned to either the single mark on the larger Balance Shaft gear or the double timing mark, the balance shaft will sit naturally in either position.

My question is which timing marks do I align prior to installing the balance shaft to the crankcase. I couldn't see a mark on the crankcase sprocket but may have missed it. The crankshaft is set at TDC.

Any help would be much appreciated.
Did you have the shaft out? Loss of timing?

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post #5 of 8 (permalink) Old 04-19-2019, 10:17 AM Thread Starter
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Hi,
thanks for the reply.

I didn't have any problem with my car. I removed the pistons from the engine to replace the rings and to do this has to remove the balance shaft assembly to get access to the connecting rod bolts.

I now need to put the balance shaft assembly back again and the timing position is not clear to me.

If I can find out the proper alignment of all the timing marks everything will hopefully work fine.

Andy
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post #6 of 8 (permalink) Old 04-19-2019, 12:14 PM
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I would think you would time the two shafts if they were disturbed. If not just the crank to balance shaft would need to be timed. It states..... "Pay attention to the timing marks on the driver gears of the balance shaft and the crankshaft".....I take it you didn't mark the relative position before removal. Not sure why the gear in your photo has two different timing marks while the smaller gear does not appear to have any. I would expect these gears would be timed like the two balance shafts with a single dot (tooth) between two dots (teeth). Do you have a single dot on the small gear?

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post #7 of 8 (permalink) Old 04-19-2019, 01:00 PM Thread Starter
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Thanks again for the response.

The crankshaft is set at TDC in the picture I posted - balance shaft 2.jpg (small pin around 1 o'clock on the upper pulley).

Yes, there is a single dot on the small gear. It isn't visible on the photo I posted but it is there.

I have the option of lining up this single dot on the small gear in two ways. I can align the single dot on the small gear to single dot on the large balance gear, or I can align it single dot on the small gear to double dot on the large balance gear. Either way the shafts will balance (I mean the gears will settle naturally in either position).

I agree the most probable scenario is single dot on small gear to double dot on large gear as shown in the diagram for the internal gears, I just wanted to be certain before I put it all back together.
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post #8 of 8 (permalink) Old 04-24-2019, 10:25 PM
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Do a search on YouTube to see if anyone has posted a video about timing the balance shaft to crankshaft. You could always go to a dealer and talk to one of the experienced mechanics.

Look in the telephone book to see if there are any engine rebuilders in your area; they may be able to help you. Are there still telephone books in the UK?
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