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Old 10-11-2010, 07:51 PM   #1
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330 oil dipstick has 2 full marks?

Just new to this MH and starting its check over. It was always serviced at the local Fleetwood dealer and had a recent service before we bought. The oil dipstick has an original full mark but someone has etched in a second full mark higher up on the stick. That is where the oil level is sitting. It has the shallow pan which should hold 22 quarts of oil. It appears odd to me that someone has set a different oil level mark. Iím thinking, even though its just had an oil change, I should drain and fill up with 22 quarts of fresh oil and see where it sits. Anyone else seen a dipstick remarked for any reason?
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Old 10-11-2010, 08:12 PM   #2
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I have read where some people have done what your are talking about. Calibrating their oil dip stick. Are you sure about the 22 quarts? I have the shallow pan on my 3126 CAT and it holds 20 quarts.

Remember, A little low on the stick is better than a little high.
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Old 10-11-2010, 08:16 PM   #3
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I just recently completed a oil and filter change on my 2001.5 Discovery which has the 330HP 3126E motor. Prior to changing the oil I assured the MH was level and checked the oil dip stick and it was on the full mark. Having read several articles and the confusion which occurs with oil levels I did a oil pan check which confirmed I had a shallow pan. Based on that observation I was confident I had a 19 quart capacity pan. Drained the oil and installed a new filter (dry) and poured 17 quarts of oil into the motor. Started the engine and let idle with pressure showing on the gauge. Shut the motor down. Let her sit for 10 minutes then pulled and checked the dip stick. The level was between the low and high mark. Added two additional quarts of oil and repeated the process of starting and stopping the motor. The oil level was right on the top full mark. I've since made and hung a tag on the oil fill tube which states "19 Qt Capacity".

From what you have described it would appear that someone has calibrated your dip stick. You may want to follow the procedure I used with 19 Qts. and see where the oil level is on you D stick. Worst case you may have to add additional oil. Just a reminder that overfilling the oil can cause some serious problems.
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Old 10-11-2010, 08:16 PM   #4
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Quote:
Originally Posted by OneRVer View Post
I have read where some people have done what your are talking about. Calibrating their oil dip stick. Are you sure about the 22 quarts? I have the shallow pan on my 3126 CAT and it holds 20 quarts.

Remember, A little low on the stick is better than a little high.
Not sure other than the Cat 3126 manual that came with the coach reads 22 with normal filter...30 if deap sump pan.
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Old 10-11-2010, 08:23 PM   #5
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Quote:
Originally Posted by bob109 View Post
I just recently completed a oil and filter change on my 2001.5 Discovery which has the 330HP 3126E motor. Prior to changing the oil I assured the MH was level and checked the oil dip stick and it was on the full mark. Having read several articles and the confusion which occurs with oil levels I did a oil pan check which confirmed I had a shallow pan. Based on that observation I was confident I had a 19 quart capacity pan. Drained the oil and installed a new filter (dry) and poured 17 quarts of oil into the motor. Started the engine and let idle with pressure showing on the gauge. Shut the motor down. Let her sit for 10 minutes then pulled and checked the dip stick. The level was between the low and high mark. Added two additional quarts of oil and repeated the process of starting and stopping the motor. The oil level was right on the top full mark. I've since made and hung a tag on the oil fill tube which states "19 Qt Capacity".

From what you have described it would appear that someone has calibrated your dip stick. You may want to follow the procedure I used with 19 Qts. and see where the oil level is on you D stick. Worst case you may have to add additional oil. Just a reminder that overfilling the oil can cause some serious problems.
This is somewhat confusing as the manual reads 22 quarts but 2 different people here have suggested something less. And on top of all this, someone has remarked the stick on this coach higher than the original mark. Very strange.
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Old 10-11-2010, 09:15 PM   #6
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Found this ob the internet...answers the questions I had I think:

C7 Engine Oil Level Change
Effective March 1, 2005 all C7 engines leaving the Greenville, SC plant have a new oil pan capacity of 19 Qts. instead of 22 Qts. for C7 RV applications with a shallow sump. This change was brought about after a number of customers were having oil blow-by problems on their towed cars. This problem was due to the redesign of the crankcase breather from on top of the valve cover (3126) to a new side-mount location (C7) to lower the engine height. This was done to accommodate a new F/L chassis with a lowered engine/transmission platform to allow coach builders to construct flat - floor rooms at the rear of new coaches.

The new side-mounted breather assembly is sensitive to over-filling the oil pan. You should check your oil level when the engine is cold...if you check it later down the road, waiting only 10 to 15 minutes for the oil to drain into the crankcase, you may get a false indication of a low oil level. Adding oil at this time, will cause an over-fill condition resulting in oil blow-by via the crankcase breather tube. For a detailed analysis of one case, see our Yahoo Discussion Forum, message #145 (See Links page for link to the Yahoo Forum).

For a detailed statement about this oil capacity change, see our Yahoo Discussion Group message #564. This message came from Tad Petrie, CAT Call Center and explains the change and how to re-calibrate your dip stick. This message also says these new oil pan capacities will not change the current oil change intervals. It also says that if the oil blow-by condition is not present, then the oil capacity does not need to be reduced. This info is now included in the CAT Maintenance Seminar presentation.
For the 3126 owners, you may remember a few years back that the 3126 originally had an oil capacity set at 19 Qts. This was later increased to 22 Qts. to enable a longer interval between oil changes. Also, the 3126 has the crankcase breather cap mounted on top of the valve cover and to my knowledge, oil blow-by has not been a problem on the 3126s.

So....a 2003 with the 3126 should hold 22 quarts. Only the newer C7 should be 19 quarts.
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Old 10-11-2010, 10:17 PM   #7
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Originally Posted by Cdn-Tx View Post
This is somewhat confusing as the manual reads 22 quarts but 2 different people here have suggested something less. And on top of all this, someone has remarked the stick on this coach higher than the original mark. Very strange.
I would suggest that you use 19 Qts. as opposed to 22 Qts. Cat has a reputation of providing conflicting info. I've discovered two different oil change durations for the 3126E. Both sources of info were provided by Cat, with one document stating 6000 miles between oil changes while another CAT document states 9000 miles between oil changes. That info was for the shallow pan version of the 3126E
I would contact Cat with your VIN Number in hand, and request the oil quantity info from them

Check out these documents!
http://ohe.cat.com/cda/files/517742/7/LEHT9288.pdf
http://www.fcocrv.org/Documents/PDF/...sisJAN2009.pdf
,
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Old 10-11-2010, 10:36 PM   #8
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Quote:
Originally Posted by bob109 View Post
I would suggest that you use 19 Qts. as opposed to 22 Qts. Cat has a reputation of providing conflicting info. I've discovered two different oil change durations for the 3126E. Both sources of info were provided by Cat, with one document stating 6000 miles between oil changes while another CAT document states 9000 miles between oil changes. That info was for the shallow pan version of the 3126E
I would contact Cat with your VIN Number in hand, and request the oil quantity info from them

Check out these documents!
http://ohe.cat.com/cda/files/517742/7/LEHT9288.pdf
http://www.fcocrv.org/Documents/PDF/...sisJAN2009.pdf
,
Iím pretty sure I got the history of the varying oil volumes figured out. Its pretty simple. The older 3126 engines held only 19 quarts of oil but that was later increased to 22 to extend oil change intervals. Then the C7 came out, which is a lower engine to allow a flat floor in the coach, so had the breather on the side, not the top of the engine. Cat originally left the oil capacity at 22 quarts but the lower breather spit oil out so they lowered the limit back to 19. From what I have come across tonight on several sites is if your 3126 was built for the 22 quarts, there is no reason to change that. It was only the C7 that had a problem and that was simply spitting oil out the breather and making a mess.

The PDF document link in your post confirms my engine should have 22 quarts of oil. Thats the shallow pan.
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Old 10-12-2010, 08:53 AM   #9
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What you should do is call caterpiller with your eng. Ser.# and they will give you the correct info. on the oil capacity of your engine.
It varies 19 qts. 20 qts. 22 qts for the shallow pan engine depending.
My 2002 3126e takes 20 qts.
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Old 10-12-2010, 10:01 AM   #10
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Serial Number Prefix Oil Pan Sump Miles/Years


1WM 19 Quarts (18L) Shallow 6,000 Miles
/1 Year
1WM 29 Quarts (27L) Deep 10,000 Miles /1 Year
7AS, 8YL, CKM, 22 Quarts (21L) Shallow 11,000 Miles / 1Year
HEP
7AS, 8YL, CKM, 30 Quarts (28L) Deep 15,000 Miles / 1 Year
HEP
KAL, SAP, WAX* 19 Quarts (18L) Shallow 11,000 Miles /1 Year
KAL, SAP, WAX* 27 Quarts (25L) Deep 15,000 Miles / 1 Year
* Fill volumes changed due to Side mounted breather

I have a CKM prefix on my engine and a call to Cat. and they said 20 qts. go figure.

This info from the 07 Cat. seminar for the
3116/3126/B/E/C7 engines

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Old 10-12-2010, 01:49 PM   #11
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Quote:
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I have read where some people have done what your are talking about. Calibrating their oil dip stick. Are you sure about the 22 quarts? I have the shallow pan on my 3126 CAT and it holds 20 quarts.

Remember, A little low on the stick is better than a little high.
I must make a correction here. My book calls for 21 quarts. But I run my crankcase one quart low, also I have one of the first 3126 made and CAT have made several changes to their spec's.

Just thought I should clarify my previous statement.
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