In-frame, out-frame, or park-frame? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 16 (permalink) Old 10-21-2010, 06:39 PM Thread Starter
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In-frame, out-frame, or park-frame?

Okay guys I have a 1996 International 4700 (old Fed-Ex) truck. 271K on DT466E. Blows a ton of oil out the bypass hose. DOT is particular about that it seems these days, Dealer hooked a manometer up to it and the reading is 6.5". Everyone wants to overhaul it for about 8K. Engine has lots of power still and sounds tight. I am wanting to rework this engine myself.

Is there some reason I simply can't just re-ring this, change the o-rings on the liners, r&r the rod bearings, freshen up the head and haul ***? or have things changed in the last 20 years since I last cracked open a diesel engine?

Your thoughts?
Thanks
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post #2 of 16 (permalink) Old 10-21-2010, 08:11 PM
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Last I heard the kit for those engines was cheap from IHC , don't know if the addition of electronics changed that
nothing majic inside just a bunch of metal stuff

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post #3 of 16 (permalink) Old 10-22-2010, 12:15 AM
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Originally Posted by 379Longhood View Post
Last I heard the kit for those engines was cheap from IHC , don't know if the addition of electronics changed that
nothing majic inside just a bunch of metal stuff
Not sure about that one, Jim... stuff inside some engines baffles the sht outta me...
Easy for some of you guys(You, Tony,John,Kurt, Pichu and many others)

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post #4 of 16 (permalink) Old 10-22-2010, 12:58 AM
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If it is running smooth, I would get a rubber diaphragm and test the turbo for air bypassing the compressor to the crank case, also test the CAC and the intake manifold for air past the valve guides. You Should be able to get an adapter, that goes into the injector hole and do a leak down test on the cylinders. Do the test at the TDC each cylinder and at the bottom, cut apart the oil filter looking for metal.
You want all the information you can get, then make a decision with the facts, not every engine that looks bad is junk, and needs an overhaul.
Just a thought!

1988 ford van fresh overhaul, 1991 nissan pick-up 1993 Caprice 2000 GMC S10 Blaser 2007 nbs 3500 GMC 4x4 crew-cab long box 17 inch single wheels Duramax Alison. BW turnover Ball. Furakawa FL35 loader. Retired, HD mechanic, worked on engines all my life. Fabricator welder. electrician. in the process of finishing my new shop. Live in Rock Creek B.C. Wife has a fruit stand.
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post #5 of 16 (permalink) Old 10-22-2010, 01:54 AM
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Engine in-frame parts about $1500 for non electronic DT. I would think E model about the same. No point in replacing electronics that work.

'93 IH 4700, 250HP DT466, L10 Cummins intercooler, 6+1, air ride.

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post #6 of 16 (permalink) Old 10-22-2010, 02:08 AM
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Quote:
Originally Posted by Johnp3 View Post
If it is running smooth, I would get a rubber diaphragm and test the turbo for air bypassing the compressor to the crank case, also test the CAC and the intake manifold for air past the valve guides. You Should be able to get an adapter, that goes into the injector hole and do a leak down test on the cylinders. Do the test at the TDC each cylinder and at the bottom, cut apart the oil filter looking for metal.
You want all the information you can get, then make a decision with the facts, not every engine that looks bad is junk, and needs an overhaul.
Just a thought!

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pettibone s20 3306 pc
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post #7 of 16 (permalink) Old 10-22-2010, 04:30 PM Thread Starter
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you know that makes more sense. I have a hard time that with that much blow by this truck could run this good. It hauls oilfield supplies so you can imagine its never overloaded. lol

Thanks for the tip. Now I get to go and diagnose!

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post #8 of 16 (permalink) Old 10-22-2010, 09:15 PM
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DT 466E= a good engine. I have a lot of experience with these little engines. Check that the valve cover gasket is in good shape. The valve cover doubles as the intake manifold. A weak gasket could let turbo boost pressure enter into the crankcase and slobber oil out the tube. Just a thought. Oh yeah a bit off topic but most of these have a small cylinder thing just to the rear of the fuel filter head. It has a screen in it and a lot of people overlook them when they service these engines.
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post #9 of 16 (permalink) Old 10-23-2010, 12:53 AM
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Originally Posted by nceaglene View Post
DT 466E= a good engine. I have a lot of experience with these little engines. Check that the valve cover gasket is in good shape. The valve cover doubles as the intake manifold. A weak gasket could let turbo boost pressure enter into the crankcase and slobber oil out the tube. Just a thought. Oh yeah a bit off topic but most of these have a small cylinder thing just to the rear of the fuel filter head. It has a screen in it and a lot of people overlook them when they service these engines.
Hate to but in but a friend of mine had his automatic trans rebuilt only to find out that it was the clogged screen after his truck showed the same signs after trans job as before. Needless to say cleaning screen cheaper than transmission and a good mechanic PRICELESS!!!!
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post #10 of 16 (permalink) Old 10-23-2010, 01:09 AM
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You say that its dumping oil out the breather tube, inside the top of the valve cover is 2 brillo pad looking things that stop the oil from getting out. If one or both of them have the centers pushed out it will dump oil out the tube. As was said earlier check your valve cover gasket.
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