Diesel in sump Chevy big block 6.5 v8

[Wildbill]

Ok her I go I stoped to help out a RV owner who was on there way to Germany for the euros
Oil everywhere fan belt had broken or so I Thaugh no problem.
But as I investigated further ie dipped the oil
It was six inches past full mark.
And very thin
I drained the oil back to the normal marks
The engine starts but lumpy.
So I slack off the injections one at a time it changed tone became more lumpy I manèges to do this with six of them.
The two behind a the heat shield can’t get to as it is a bit of a strip down and they were on there way to Paris from Manchester then train to Düsseldorf.
So couldn’t get hold of them or the owner of the RV
The injectors are a bit difficult to get to
Anyway my Thaugh are one of the injections has failed washing past the rings or the injector pump is leaking diesel in to sump from a failed seal I will know when I have the injectors out and test them

The thing’s I am wondering

1 if it a injector porin Diesel in to the the piston boair could it have hydraulic the engine if so that’s I knackered game over .

2 if I get the injectors out and find the one that knackerd and it has fallen apart game over

Do a camera check and make sure that the piston is not damaged there is a risk of a bent con rod game over

3 if I I can do a compression test on all the boors the should be a good starting point

4 I have never come across this herd of it but never actually seen it before

Thay were very lucky that the engine didn’t start eating the diesel from the sump runaway engine

The boys are at the euros for the next 10 games
So 10 days for the owners to make his mind up get it recovered back to Newcastle a very evpencive newbie mistake no recuvery on a van he bough on impulse
If I had got it going they were going to kidnap me to Germany I told them you haven’t met my wife she would hunt you down and kill you
Sorry for the long post and rambling on a bit
Don’t know if they will want me to do it but you never know
Wildbill

 

[Figaro]

All of that went straight over my head, but if anyone can sort it out I'm sure you can.
They were very lucky to cross paths with you, I hope they're grateful and line your palm with some silver

 

[TheBig1]

Definitely a lot more serious than an injector with that amount in the sump. How they managed to avoid it running on is a miracle. The lumpy running suggests it has done damage internally and this is a can of worms that won't end well

A cheap impulse purchase worries me that they were sold it knowing it was done for. Would be cheaper to swap the engine out

 

[L' Hobo]

If the oil level was 6" above and this WAS because of diesel, ALL the oil has been contaminated and needs replacing before you have any hope in it running right.

If it's an injector, a compression test will help to establish which cylinder BUT now it's been running on oil/diesel sump mixture, it has probably washed the cylinder wall so do not expect good compression on any.

The belt could have been thrown when engine seized due to excess fuel in one cylinder?

Good luck!

 

[Wildbill]

Definitely a lot more serious than an injector with that amount in the sump. How they managed to avoid it running on is a miracle. The lumpy running suggests it has done damage internally and this is a can of worms that won't end well

A cheap impulse purchase worries me that they were sold it knowing it was done for. Would be cheaper to swap the engine out

That’s what I am thinking it a new engine job the boors will be Whased
It will need a good looking at probably beyond my humble tool set but the guy says nothing ventured.
It will probably take me a good few hrs to take out the injectors and compression test
And drop the oil
Don’t know if it’s hydrlick tapits timing belt or chane

^{_{Subscribers  do not see these advertisements}}

 

[Wildbill]

If the oil level was 6" above and this WAS because of diesel, ALL the oil has been contaminated and needs replacing before you have any hope in it running right.

If it's an injector, a compression test will help to establish which cylinder BUT now it's been running on oil/diesel sump mixture, it has probably washed the cylinder wall so do not expect good compression on any.

The belt could have been thrown when engine seized due to excess fuel in one cylinder?

Good luck!

The engin did not seize the belt just fell apart with oil contamination
Going to get a few gallon of oil change filter Chang oil flush system
The check the injections on my test bead pop off tester.
When I have the injections out will try a camera inspection firs check the cylinders.
Then pore sum oil down the injector holes turn engine over by hand
If alls good turn over with starter motor compression test each boar independently
That way I I will get a bench mark to work from
There’s so much that could be wrong with it I know but at least when he gets it back home he will know what he’s got and can make a assessment
If it knakerd I will be honest with him but I think he was shafted when he bought it

 

[Wildbill]

The engin did not seize the belt just fell apart with oil contamination
Going to get a few gallon of oil change filter Chang oil flush system
The check the injections on my test bead pop off tester.
When I have the injections out will try a camera inspection firs check the cylinders.
Then pore sum oil down the injector holes turn engine over by hand
If alls good turn over with starter motor compression test each boar independently
That way I I will get a bench mark to work from
There’s so much that could be wrong with it I know but at least when he gets it back home he will know what he’s got and can make a assessment
If it knakerd I will be honest with him but I think he was shafted when he bought it

Reply to my own post it timing chain just downloaded the manual
So relieved no timing belts to deal with
That could have been contaminated
Wildbill

 

[Wildbill]

Definitely a lot more serious than an injector with that amount in the sump. How they managed to avoid it running on is a miracle. The lumpy running suggests it has done damage internally and this is a can of worms that won't end well

A cheap impulse purchase worries me that they were sold it knowing it was done for. Would be cheaper to swap the engine out

My biggest problem is I only have a 2t engine lift
And I think it engine out the bottom.
I have work on engine in situ charged out con road piston with the engine in place
But never on a v8 big block hopefully it just an injector or injection pump seals
The boys are at the Mach in Düsseldorf when thay give me there intentions what thay are going to do.it a 1996 so for them it maybe not be worth throwing money at
Thay can’t even hold a spanner so it 5 k for rebuild at a garage
5k for another engine plus’s transport back to Newcastle that’s £1500 I would think
£6500 just thare I deal for them it a same that thay got bent over with it
And the garage that done the mot and service bent them over as well
Such a shame
I would not be able to sleep at night doing that to somebody
Wildbill

 

[chesterfield hooligan]

You might find one injector tip has broken off and embedded itself in a piston or it might be a smashed injector spring causing fuel to not atomise and just pump into the cylinder none of it good

 

[Wildbill]

You might find one injector tip has broken off and embedded itself in a piston or it might be a smashed injector spring causing fuel to not atomise and just pump into the cylinder none of it good

Yes probably a bent con rod anyway and scored bore valve done in as well
Ether way it a new block at worst
If it a injector tip
Beyond any skills thay have I am almost in tears for them
I do hope it’s not terminal but holding out a very small glimmer of hop for them.
It a varry big job for any one Even a garage with all the kit and expensive
Wildbill

^{_{Subscribers  do not see these advertisements}}

 

[Wildbill]

Thay were all set for there football adventure such a shame
Wildbill

 

[tacr2man]

Another possible is fuel leak from lift pump into sump if mechanical pump

 

[Wildbill]

Definitely a lot more serious than an injector with that amount in the sump. How they managed to avoid it running on is a miracle. The lumpy running suggests it has done damage internally and this is a can of worms that won't end well

A cheap impulse purchase worries me that they were sold it knowing it was done for. Would be cheaper to swap the engine out

I do think that the lumpy tuning is on one cylinder there's no knocking just a miss but that one cylinder could be wrecked no banging tick ticking
Hydraulicing of the cylinder and bending a cone rod is a concern it Isn’t making and really bad nose listens to it with screw driver it like one cylinder not firing
But I do have a gut feeling its something deeper
Wild

 

[Wildbill]

Another possible is fuel leak from lift pump into sump if mechanical pump

That’s another thin I had though about but that would put air in to HP pump a bad staring it starts firs piston up.
No kranking
Wildbill

 

[L' Hobo]

Yes probably a bent con rod anyway and scored bore valve done in as well
Ether way it a new block at worst
If it a injector tip
Beyond any skills thay have I am almost in tears for them
I do hope it’s not terminal but holding out a very small glimmer of hop for them.
It a varry big job for any one Even a garage with all the kit and expensive
Wildbill

To be honest, I doubt if it's a bent Conrod as, I believe, you said it had been running, if there was a bent con rod, it would be shaking itself to bits.
An old style V8 will put up with many things but.....

By the way, it looks like a nice vehicle for a group of lads on an adventure!

^{_{Subscribers  do not see these advertisements}}

 

[Wildbill]

Another possible is fuel leak from lift pump into sump if mechanical pump

It something I have never ever seen before diesel in sump like that.
But I am just a diy mechanic had spanner’s in my hands all my life and never seen it before
Wildbill

 

[Wildbill]

To be honest, I doubt if it's a bent Conrod as, I believe, you said it had been running, if there was a bent con rod, it would be shaking itself to bits.
An old style V8 will put up with many things but.....

By the way, it looks like a nice vehicle for a group of lads on an

To be honest, I doubt if it's a bent Conrod as, I believe, you said it had been running, if there was a bent con rod, it would be shaking itself to bits.
An old style V8 will put up with many things but.....

By the way, it looks like a nice vehicle for a group of lads on an adventure!

It reves up smith just a miss and lumpy no vibration
Wild

 

[L' Hobo]

It something I have never ever seen before diesel in sump like that.
But I am just a diy mechanic had spanner’s in my hands all my life and never seen it before
Wildbill

Do you have any idea what V8 lump we are talking about?
Someone might have experience of a particular motor?

 

[tacr2man]

I had it on a 2.25 diesel land rover, and a nuffield tractor . both were running ok
is it white or blue smoking

 

[L' Hobo]

I had it on a 2.25 diesel land rover, and a nuffield tractor . both were running ok

Neither of which is a V8?

Are you writing about a glass bowl type lift pump?

^{_{Subscribers  do not see these advertisements}}

 

[Wildbill]

Do you have any idea what V8 lump we are talking about?
Someone might have experience of a particular motor?

Chevrolet v8 turbo diesel 1996 7.5 tone motorhome

 

[Wildbill]

I had it on a 2.25 diesel land rover, and a nuffield tractor . both were running ok
is it white or blue smoking

Black over fuiling
Wildbill

 

[tacr2man]

Black over fuiling
Wildbill

yep sounds like injector

 

[Wildbill]

yep sounds like injector

As long as it hasn’t fallen apart there’s a bit of hope
Wildbill

 

[Wildbill]

Definitely a lot more serious than an injector with that amount in the sump. How they managed to avoid it running on is a miracle. The lumpy running suggests it has done damage internally and this is a can of worms that won't end well

A cheap impulse purchase worries me that they were sold it knowing it was done for. Would be cheaper to swap the engine out

Just priced up a engine 5k then probably another 1k or more to have it fitted transportation to Newcastle another £1500 or more as thay don’t know one end of a spanner from another
Such a same and whoever sold it to him is shameless as well and on top of that god knows how much to get it through a mot the garage ripped them off on that I believe big list of jobs
I was told
Can’t really say but it was extremely expensive for what I was
More than the old truck is worth really I thinking
Wildbill

^{_{Subscribers  do not see these advertisements}}

 

[Wildbill]

Definitely a lot more serious than an injector with that amount in the sump. How they managed to avoid it running on is a miracle. The lumpy running suggests it has done damage internally and this is a can of worms that won't end well

A cheap impulse purchase worries me that they were sold it knowing it was done for. Would be cheaper to swap the engine out

There’s other things wrong with it I am sure there was no 12v to charge there phones the gas doesn’t work apparently and I don’t know if the heater works
Nether thy did have cold and cold running water
And some lighting but no 240 inverted electric
Hence thay struggle to charge there phones
Total newbie.
Lovely bunch of boys hope it doesn’t put them off motor homing.
I have told them about the forum so you never know thay might join
Wildbill

 

[Wildbill]

Another thing I was thinking about is a van of that age getting recovery.
I am sure the AA or the RAC wouldn’t cover it I had to go through red pendant caravan club green flag
And thay probably didn’t know about that so that’s another issue

 

[ChrisL]

Fuel pump oil seal was a common problem on Mitsubishi 4M40 engines, if there is engine oil in the fuel filter that might be a clue, when the engine stops the diesel runs back taking engine oil with it. But injectors are the most likely cause if it's running rough.

 

[tinkertaylor]

If you have the right air fittings you can pressurise the bores without turning the engine over. Sounds like it started with an injector failing but god knows what damage it has done. Sounds like your on the way to finding the issue

 

[Wildbill]

If you have the right air fittings you can pressurise the bores without turning the engine over. Sounds like it started with an injector failing but god knows what damage it has done. Sounds like your on the way to finding the issue

Do have a test kit to do that but no compressor as it in pub car park so check boors with camera and pressure testing turning engine over engine.
If it’s just a injectors spring we are in business
Anyrhig else it recuvery to Newcastle and big strip down a lot of money for him
Wildbill

^{_{Subscribers  do not see these advertisements}}