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Old 04-10-2019, 01:25 PM   #1
jambucaro
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Default Compression leak into crankcase, oil loss @ dipstick

This is the first time I have posted anything, anywhere, but I have used info from this forum extensively to keep my Sprinter happy.
I'm the original owner of my 2005 Sprinter, long wheel base, high roof, all windows and seats, we have 10 children in our family (added a row of seats) and use it as our family car, we live in So. California
So far:
270,000 miles on the odometer
All oil/filter and fuel filter maintenance done as required
Loose harmonic balancer repaired at about 170K, water pump and fan/clutch assembly replaced at that time, just as a precaution
RSN noise done around 140K ?
Leaking injectors, glow plugs and module done at about 240K, no issues during removal
Turbo Charger charge hoses and resonator replaced 3-4 times
New radiator at about 200K, NEVER over heated, dried coolant @ head gasket, rear of the engine noted and monitored
All hoses and belts replaced with OEM as regular maintenance
Diff oil changed at about 90K
Green Diesel Technology program installed at about 200K to "fix" an EGR monitor issue
I have never had the the injectors tested or cleaned

Now my question, is it possible for the head gasket to leak compression into an oil passage? While exiting the freeway the engine pushed about 4 quarts of oil out of the dipstick housing, and immediately began to miss, by pulling injector connections I determined #5 is not firing, my video scope won't fit through injector or glow plug hole to inspect the cylinder/piston. I drained and inspected the oil, nothing unusual found, I ordered a compression tester, haven't got it yet, I'm hoping it's not a damaged piston.
Anyone else seen something like this?
Thank You in advance for any help anyone can offer
James

Last edited by jambucaro; 04-10-2019 at 01:42 PM.
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Old 04-10-2019, 01:57 PM   #2
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Default Re: Compression leak into crankcase, oil loss @ dipstick

My guess would be a hole or crack in the piston. It is not a common failure, but not unheard of.

Some causes can be injector overfueling or overheating. Reports are that there isn't necessarily any obvious symptoms prior to failure. One symptom of over fueling can be that the engine doesn't power down immediately after the throttle is released.

vic
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Old 04-10-2019, 01:59 PM   #3
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Default Re: Compression leak into crankcase, oil loss @ dipstick

Did you -replace- the injecors at any point? It looks like you didn't. I don't see them lasting much more than 200-250k at most. Sounds like your #5 Injector bit the dust and took the piston rings with it.
That sucks.
(We also bought a T1N for our large family! 11 kids right now)
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Old 04-11-2019, 03:25 AM   #4
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Default Re: Compression leak into crankcase, oil loss @ dipstick

Thanks for the help guys, looks like I'm going to run a compression test on all 5 cylinders then at least pull the head. I'm sure you're correct, guess I was hoping for a miracle.
I'll update the thread when I get it figured out.
and Congratulations to MillionMileSprinter on all those kids!!
Thanks again

James
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Old 04-15-2019, 04:06 AM   #5
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Default Re: Compression leak into crankcase, oil loss @ dipstick

No compression on #5, 4 has a little over 200, 1,2,3 have between 3-400
I'm going to pull the engine, then remove the head to see what happened, maybe I can prevent it from happening again
I think I'm going to look for a used lower mileage replacement engine
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Old 04-15-2019, 04:11 AM   #6
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Default Re: Compression leak into crankcase, oil loss @ dipstick

Chances are the repair of the existing unit might be cheaper that finding a take out replacement in good condition for less money.
Dennis
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Old 04-15-2019, 05:24 AM   #7
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Default Re: Compression leak into crankcase, oil loss @ dipstick

I agree with Dennis that it's *really* hard to find a reliable used engine. You -just-never-know- what kind of life it lived before you get your hands on it. However, a rebuild/repair by a known good Sprinter engine mechanic is a pretty good investment in the future of your van.
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Old 04-15-2019, 01:29 PM   #8
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Default Re: Compression leak into crankcase, oil loss @ dipstick

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Old 04-15-2019, 03:35 PM   #9
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Default Re: Compression leak into crankcase, oil loss @ dipstick

Sounds like you need a rework on two cylinders. If the bottom end mikes out good, you may get buy with one-two bores, matched pistons, and a top end refresh.
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Old 04-15-2019, 04:11 PM   #10
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Default Re: Compression leak into crankcase, oil loss @ dipstick

If the truck is in good overall condition and serves you well, contact Dennis and flat bed it to him. When it's ready, fly in to Denver and enjoy a trip back to home.

Dennis has experience and a good reputation. It will be a one stop shopping experience.

Good luck.


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"My opinion and worth everything you'll never pay for it." assumed.
Anyone can hold the helm when the sea is calm. Publilius Syrus
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