fuel in crankcase and broken injector

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fuel in crankcase and broken injector

Postby txs » Sun Jul 10, 2016 8:16 am

Local guy I just met has early 91, he bought the truck and it is dumping fuel in the oil, I asked him if he changed the lift pump and he said he did. He still had problem and so he swapped the injection pump. Still had problem so he started pulling injectors, #6 broke off. Is there any way to get the remains out without pulling the head? I didn't visually verify he changed the lift pump, I will do that in a day or two, he may not have been sure about which pump I was talking about. If you eliminate both pumps as source of fuel where else could it be coming from, I surely think the injectors wouldn't be dumping large amounts enough to raise the crankcase levels a lot.
93 w250 6 speed 4" exhaust, caution, work truck, she's no beauty. building 1 ton dually 4x4, dana 80, 48rh, 205 Scratch the one ton, bought frt. dually 4x4 98 12 valve with the tiny rear doors. rides so much better than the 93.
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Re: fuel in crankcase and broken injector

Postby fatty » Sun Jul 10, 2016 8:27 am

He could try holding the fuel shutoff and cranking, the compression might pop it out. I've heard of people doing that but haven't ever tried it. I imagine it could dent the hood or go shooting across the yards a ways.
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Re: fuel in crankcase and broken injector

Postby thrashingcows » Sun Jul 10, 2016 11:29 am

Really the only two places fuel can get into the crank case are the lift pump and front seal on IP. Unless the injector was totally fubard then I doubt it could dump that much fuel into the crabk case..and you would probably see a hydro-lock or fuel running out the exhaust if the injector was a major problem.
1984/93 Dodge Crewcab, W350, 1 Ton SRW, long box, 330K Km's, M&H spacer, 366 spring, fuel pin to deep side, 14cm housing, Piston LP, PS IC, Isspro Boost, Pyro and tach, NV4500, 29 spline NP205, 3.54's.


Check out the build....http://www.dieseltruckresource.com/dev/ ... 05923.html
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Re: fuel in crankcase and broken injector

Postby txs » Mon Jul 11, 2016 6:52 am

I'm going over there in a bit to check and see if the lift pump has been changed, going to try the cranking over thing. I have ulterior motives, trying to buy the parts truck he's robbing the pieces off of, 92 2wd 5speed, they wanna keep the motor but I really don't need the motor, I need the in cab wiring harness. ive bought 3 diesel parts truck in the last few years and all were autos
93 w250 6 speed 4" exhaust, caution, work truck, she's no beauty. building 1 ton dually 4x4, dana 80, 48rh, 205 Scratch the one ton, bought frt. dually 4x4 98 12 valve with the tiny rear doors. rides so much better than the 93.
txs
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Re: fuel in crankcase and broken injector

Postby DodgeFreak » Mon Jul 11, 2016 1:07 pm

Honestly if he's been trying to determine the source of fuel and the tip is broke off. He's already ran it with a broken tip so I'd almost bet the pieces are already embedded into the piston or blown out the exhaust, You probably won't find the pieces.
92 D350 Cab and Chassis. Auto stock, wiring gremlins. 330k miles
92 W250 Ext cab rotted completely out. Auto, pump maxed, 215 ppump nozzles, Denny T2 pin.
85 D350 single wheel, converted to cummins, getrag, turned up 2 turns and afc screw flush.
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Re: fuel in crankcase and broken injector

Postby txs » Mon Jul 11, 2016 7:57 pm

He broke the injector off trying to get it out, the turning over thing didn't work so he pulled the head. The lift pump is new, guessing it's the seal in the injection pump. I bought the roller for 400, they keepin the engine and tranny. Got a decent front winch bumper on it too. He says the rear was a posi, wondering if they are trash lock or power lock.
93 w250 6 speed 4" exhaust, caution, work truck, she's no beauty. building 1 ton dually 4x4, dana 80, 48rh, 205 Scratch the one ton, bought frt. dually 4x4 98 12 valve with the tiny rear doors. rides so much better than the 93.
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Re: fuel in crankcase and broken injector

Postby fatty » Mon Jul 11, 2016 8:31 pm

Did the body itself break? I'm just trying to imagine how you can break an injector.
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Re: fuel in crankcase and broken injector

Postby DodgeFreak » Mon Jul 11, 2016 11:14 pm

I'm trying to figure that one out also. Only thing I can see is they pulled the body apart from the tip. but even then that's hard to imagine but I guess anything is possible.
92 D350 Cab and Chassis. Auto stock, wiring gremlins. 330k miles
92 W250 Ext cab rotted completely out. Auto, pump maxed, 215 ppump nozzles, Denny T2 pin.
85 D350 single wheel, converted to cummins, getrag, turned up 2 turns and afc screw flush.
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Re: fuel in crankcase and broken injector

Postby txs » Tue Jul 12, 2016 8:47 am

I wasn't there when he did it. he got 4 of them out, two were stuck and one of those came out by cranking the motor, the last one he tried prying somehow, pulled the top half off.
93 w250 6 speed 4" exhaust, caution, work truck, she's no beauty. building 1 ton dually 4x4, dana 80, 48rh, 205 Scratch the one ton, bought frt. dually 4x4 98 12 valve with the tiny rear doors. rides so much better than the 93.
txs
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Re: fuel in crankcase and broken injector

Postby txs » Sun Aug 07, 2016 6:43 am

He pulled the head, got the injector out, had them reset to correct pop off pressure, reassembled motor. starts, runs and idles great, but has no power at all. It's not smoking abnormally, he did have to leave the cold start thingy unplugged, when it is plugged in it don't run right at all. He used the intercooled injection pump on his non intercooled motor, it was running fine that way, he changed it out because of fuel in oil issue. He didn't take the gear out of the timing case so it's my understanding you cant jump a tooth on the pump. I told him to try advancing the pump, it's set right in the middle of the slots. Other than that I'm stumped.
93 w250 6 speed 4" exhaust, caution, work truck, she's no beauty. building 1 ton dually 4x4, dana 80, 48rh, 205 Scratch the one ton, bought frt. dually 4x4 98 12 valve with the tiny rear doors. rides so much better than the 93.
txs
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Re: fuel in crankcase and broken injector

Postby txs » Sun Aug 07, 2016 6:44 am

ps, I asked him if he set the valve lash, he said ten and twenty, so that should be good.
93 w250 6 speed 4" exhaust, caution, work truck, she's no beauty. building 1 ton dually 4x4, dana 80, 48rh, 205 Scratch the one ton, bought frt. dually 4x4 98 12 valve with the tiny rear doors. rides so much better than the 93.
txs
14mm rotor
 
Posts: 556
Joined: Sat Sep 29, 2007 7:48 am
Location: south cumberland plateau, tenn
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Re: fuel in crankcase and broken injector

Postby DodgeFreak » Sun Aug 07, 2016 8:25 am

The ksb runs backwards on the ic pump from the non ic. It advances with 12 volts and the non ic has a constant 12v. So when he plugs the ksb in its advancing the pump. Did he advance the pump already? Also make sure the key didn't get smashed as that happens alot also.
92 D350 Cab and Chassis. Auto stock, wiring gremlins. 330k miles
92 W250 Ext cab rotted completely out. Auto, pump maxed, 215 ppump nozzles, Denny T2 pin.
85 D350 single wheel, converted to cummins, getrag, turned up 2 turns and afc screw flush.
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Re: fuel in crankcase and broken injector

Postby txs » Fri Sep 23, 2016 6:38 am

The guy pulled the front cover, he did bugger up the key, put in new key. starts, idles, runs good, but still down on power although it can be driven on the highway now, we live on a narrow part of the plateau, never very far from stiff grade for testing, it would not maintain speed coming back up the mountain, roughly 4% grade for about 2-3 miles. Also he cleaned up the threads on the fuel screw and cranked it in, you cant get it to run away, so something still wrong. He found a guy to rebuild original non ic pump. It doesn't smoke so I don't think it's sucking air.
93 w250 6 speed 4" exhaust, caution, work truck, she's no beauty. building 1 ton dually 4x4, dana 80, 48rh, 205 Scratch the one ton, bought frt. dually 4x4 98 12 valve with the tiny rear doors. rides so much better than the 93.
txs
14mm rotor
 
Posts: 556
Joined: Sat Sep 29, 2007 7:48 am
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