diesel in the sump

[mudflap61]

Hi
I have just started a service got all the filters ready warmed up the disco, pulled the sump plug out and out it came, but smelled funny like kero. wiped the mess off my hand really easily. then looked under the disco and saw the container (cut off 20lt) nearly full. then realized it was half diesel as it should be 8lt oil.

So the question is whats wrong, why do I have fuel in the sump??

[schuy1]

TD5 I take it? The diesel is leaking past the injectors seals. You are very lucky it hasn't started running on! Once it does that it will destroy itself very quickly at high revs :o You need to get it checked ASAP. Search the forum for it. lots of info here.

Cheers Scott

[stallie]

You are very very lucky.

Injector seals are a quick job, although you need to make up a curved pointy tool lever thingy. I'm pretty sure that's a brand name. :)

[OffTrack]

You are very very lucky.

Injector seals are a quick job, although you need to make up a curved pointy tool lever thingy. I'm pretty sure that's a brand name. :)

A 5mm allen key with a long handle works fine too. 6mm is usable but doesn't fit under the bridge of the injector all that well.

[mudflap61]

A 5mm allen key with a long handle works fine too. 6mm is usable but doesn't fit under the bridge of the injector all that well.

schuy1...Yes TD5 I had checked oil level last week and it was up and have thought about it thinking a service is due. the car has been running just fine no power loss, economy fine.

stallie.... I have been in the shed for an hour with it apart wondering how the injectors come out, so they just pull out with a lever.

thanks guys I have ordered the seals, I hope to have it done tuesday.

[djam1]

Check the injector bores (where the injectors fit in the head) they can crack or become porous causing the issue you have.

Also be wary of the turbo if you have run on the diluted oil for any length of time it may of damaged the bearings.

[mudflap61]

Check the injector bores (where the injectors fit in the head) they can crack or become porous causing the issue you have.

Also be wary of the turbo if you have run on the diluted oil for any length of time it may of damaged the bearings.

I hope at this stage the engine will be ok, as this must have started only last week. it was wednesday this week I noticed the temp getting higher than usual, i have only done a 100 ks since then. i pulled out 3 injectors ready for monday but the other 2 (1&2) wont come out because of the cam. i will have to turn the motor.

[OffTrack]

schuy1...Yes TD5 I had checked oil level last week and it was up and have thought about it thinking a service is due. the car has been running just fine no power loss, economy fine.

stallie.... I have been in the shed for an hour with it apart wondering how the injectors come out, so they just pull out with a lever.

thanks guys I have ordered the seals, I hope to have it done tuesday.

You'll need to turn the engine so the peak of the injector lobe is pointing away from the injector so you can remove. You need to pull the fan so you can get a 24mm socket on to the crank pulley bolt.

You'll need to replace the washers as well.

Cheers
Paul

[mudflap61]

Thanks Paul, I wasn't sure about crank socket size, oh and the washers are also being changed. Are the held on or just burnt on, they seem to be stuck there. Number 3 injector seemed so far to be the problem one as it had fuel in its bore when it came out.

[OffTrack]

The washers are push fit. You can get them off with pliers but you need to be a bit careful of the injector tip.

You'll need to clean up the barrel of the tips - a light rub with a green kitchen scourer seemed to be pretty effective. With the barrel cleaned the washers go on reasonably easily. I had to use a small ring spanner to get an even push when installing.

Before you reinstall the injectors give the motor a couple of quick spins on the starter. This will blow any pooled fuel out of the cylinders. Then wipe out any junk and fuel out of the injector seats.
Cheers
Paul

[schuy1]

The seating areas of the washers do need to be surgically clean too . Any grit or imperfections can have an adverse effect on sealing.

[mudflap61]

thanks for the help. it's all back together and been for short test run. I will take it a bit further tuesday the local show is on at Yeoval. i wil be checking the oil on return. damn that purge cycle is a bugger, until I got in and stomped o the pedal while starting it, then it fired.

[camel_landy]

If you have a 10P engine, you could be getting diesel in the sump from a cracked head, as the fuel rail is part of the head casting.

IIRC - The 15P engine was redesigned to use an external fuel rail...

M

[OffTrack]

thanks for the help. it's all back together and been for short test run. I will take it a bit further tuesday the local show is on at Yeoval. i wil be checking the oil on return. damn that purge cycle is a bugger, until I got in and stomped o the pedal while starting it, then it fired.

Did you do the five full strokes of the throttle with ignition on to purge? Or the purge in RAVE? The five full strokes starts a purge routine that runs for about 5 minutes.

hope the o-ring change has solved the fuel in sump issue.

cheers
Paul

[mudflap61]

Did you do the five full strokes of the throttle with ignition on to purge? Or the purge in RAVE? The five full strokes starts a purge routine that runs for about 5 minutes.

hope the o-ring change has solved the fuel in sump issue.

cheers
Paul

The one in rave, turn on ign then hit pedal 5 times quickly. it went into purge cycle for about 5 mins. after each purge, i did about 4. i would try starting, but nothing just crank over. only when i got in and put my foot on the pedal while starting did it start.

went for a drive today and I knoe it maybe early days but it looks like it didn't fix it, i will be checking oil very frequently over coming days.
Cheers
Doug

[gazk]

You are very very lucky.

Injector seals are a quick job, although you need to make up a curved pointy tool lever thingy. I'm pretty sure that's a brand name. :)

This tool is ideal for removing TD5 Injectors. (a.k.a. an early holden wheel brace/hubcap remover)

[mudflap61]

Well checked the oil today after having done 250km, and the oil level is up. looks like something else......

[justinc]

Unfortunately both early and late heads crack fuel galleries:(

I did a seal replace on one years back, at the time carefully checked the injector bores etc and saw nothing untoward. A week and a half later the oil was up again, removed injectors again a voila, an obvious crack visible:(. just the act of disturbing the system by removing and refitting injectors made it worse.

At least it was obvious, new head fixed it.

JC

[djam1]

Fit an AMC head if you can problem solved

[stealth]

I had the same problem. Got the seals replaced, but it was a crack in the head. Very tiny on one of te injector ports. Very nasty $8000 bill. The replacement head was heavier cast in the area where the original cracked. No problems since......so far....

[mudflap61]

Fit an AMC head if you can problem solved

I am looking at one from a kotara, it said AMC

[OffTrack]

I am looking at one from a kotara, it said AMC

I got mine from turner engineering in the uk with fitting kit, the LR head parts kit and a tube of hylomar 3400 just before Easter. It was delivered in 4 days and came in at around $2700 including shipping and gst.

[robbotd5]

Mudflap61
Mate, I feel your pain. I had this nightmare for 2 years. Oil increasing, I got the oil sampled and tested and was getting 6.6% dilution after only 1500ks.
Ended up getting a new AMC head and 5 genuine new injectors. No more problems. On the AMC head you can clearly see how much more meat is around the injector holes. Very frustrating for me as I have always looked after my car that I bought new.
Regards
Robbo

[mudflap61]

well the new head turned up today. the gasket is a 3 hole but the one on the car is a 2 hole. can a layer be removed or not?

[Judo]

3 hole is thicker, so you can just use that one. You can go thicker, not thinner.

[schuy1]

and then wind the boost up a little bit more! :)

[mudflap61]

and then wind the boost up a little bit more! :)

mmmm I like that idea

[mudflap61]

Well all looks good. Have done nearly 200klm and no rise in oil level. Now maybe boost up a bit, already been remapped years ago at davis landys.

[mudflap61]

well all looks good, even fitted an EGR blanking kit from Alive. the disco seems to have more torque.

thanks for all the help its great to know people know things and are willing to help