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Old 09-10-2016, 01:37 PM   #21
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Lehman Oil Levels

It's amazing that some of the younger mechanics don't know of the overfill problem than can occur with Ford Lehman"s. When we were cruising had the oil changed one time by a mechanic unfamiliar with the Lehman and had oil all over the place. Also if you are new to the Lehman don't forget to change the oil in the injector pump.
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Old 09-10-2016, 04:37 PM   #22
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I do not think the injector pump on the super 135 requires a separate oil change. Please correct me if I you think am wrong and I will break out the books. Do not want to neglect.
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Old 09-10-2016, 04:50 PM   #23
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I do not think the injector pump on the super 135 requires a separate oil change. Please correct me if I you think am wrong and I will break out the books. Do not want to neglect.
Pretty sure that is correct...only the 120 has that maintenance item.

Plus it's not just young mechanics that don know Lehmans...plenty of diesel guys haven't seen a Lehman...location specific.
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Old 09-10-2016, 08:12 PM   #24
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I do not think the injector pump on the super 135 requires a separate oil change. Please correct me if I you think am wrong and I will break out the books. Do not want to neglect.
Unlike the 120, the oil in the 135 is part of the engine oil system. It never needs a separate change. No worries there.

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Old 09-11-2016, 07:08 PM   #25
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I spoke to Brian at American Diesel and he first suggested to remove the plug at the bottom of the bell housing and drain any oil. He states that it is rarely a rear seal. I have eliminated the fuel lift pump as well as the valve gasket. Since the boat is in Alaska and we will not be back up there until next Spring, stay tuned for the final results. Thank you all for your suggestions.
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Old 09-13-2016, 12:12 AM   #26
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Well, they solved my issue. I was using the dipstick factory Mark for oil levels. No one warned me upfront that since the engine sits in a tail down angle the original factory Mark is no good. I was overfilling. Appears the common sense gene was dormant, so Bryan had to tell me.

I did as he suggested. Emptied All the oil in the engine..bone dry. Then I put in the factory reccomended 14 quarts (as I recall). Then pulled the stick and filed a new Mark on the stick.....there, problem solved....... Thanks Bryan.
Next time mark the stick after you've filled and run the engine. So your new mark will reflect any oil that might remain in your filter after shut down.
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Old 09-13-2016, 07:15 AM   #27
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Good point, I will add will be the 3rd mark on the dipstick.

Many more and I will need an AP for the phone.
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Old 09-13-2016, 07:35 AM   #28
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I just changed my oil Sunday. I put in 10.5 quarts and it brings it up to the "min" mark on the standard dipstick.
If I run at that level the engine doesn't leak anything out.
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Old 09-13-2016, 10:03 AM   #29
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The tube screws in and out of the block. Doesn't it make sense to measure the distance from the factory mark on the dip stick after a proper fill and engine warm up. Then remove the tube and cut the end off that amount so you don't have two confusing marks on your dip stick?

Just my 2 cents.
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Old 09-13-2016, 12:20 PM   #30
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I've also considered that. Anybody try that yet? Can't really think of a downside.
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Old 09-13-2016, 12:58 PM   #31
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It could be done. But it's just easier to notch the stick with a file.

In fact some engines come with unmarked dip sticks that you mark at the first fill.
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Old 09-13-2016, 02:14 PM   #32
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I am like electricity, path of least resistance. Besides, with the dormant common sense gene I would cut the wrong end of the stick
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