Petrol in with the oil

[FloydP]

Hi All, just been working on the gt6 and noticed the oil level had gone up, so I drained the oil and there was far to much and it stank of petrol.
So my question is how is it getting there, any ideas?
Cheers,
Floyd

[Lord Sorbington]

Knackered mechanical fuel pump?

[FloydP]

Kind of what I'm hoping it is.

[stillnotfinnished]

if you have spent lots of time trying to start it you could have petrol washed down through the bores

[FloydP]

Starts first turn of the key and is running really well, the quantity of petrol in the oil is probably equal to the amount of oil that should be in there.

[Vitesse2l]

Getting in through the fuel pump would be the first place to look...not sure where to look after that!

Sounds like too much to be explained by fuel washing down the bores, unless a carb is siphoning it somehow.

I have read that having petrol in the oil is quite a dangerous thing - not sure exactly how much needs to be  mixed to get properly dangerous, but sounds like you're not leaving it that way!

[Steve Cureton]

Vitesse2l wrote:

I have read that having petrol in the oil is quite a dangerous thing - not sure exactly how much needs to be  mixed to get properly dangerous, but sounds like you're not leaving it that way!

But even if not dangerous, it's not good for the engine as petrol breaks down the oil so the lubrication affect must be affected?

[Vitesse2l]

Quote:

so the lubrication affect must be affected?

I would imagine that happens. Which comes first though - the fire or the bearing damage?

Cheers

Steve B

[FloydP]

I'm pleased to say I don't think either of the above has happened, the car only travelled about 5 miles to the mot station and back. The car had been of the road for a couple of months whilst I put an od gearbox/prop/diff in and I think whilst sat idle the fuel pump diaphragm perished and started pumping fuel into the sump when it was re-awoken.
New oil and filter fitted, hopefully the new diaphragm from canleys should arrive today, so fingers crossed I'm all sorted now and ready for the RBRR.
Cheers,
Floyd.

[shedmonkey]

all sorted for the RBR ? what ? its still August...whay you playing at man! :) prep should be carried out the night before

[FloydP]

Well when I say sorted for the RBRR I mean the car will move and has an MOT, this leaves me with plenty of time for some shedtune inspired mods before the start!

[sparky_spit]

And I take it that the OD all works as you hoped?

[FloydP]

Seems to so far, a little slow to engage but I've not been far enough for the oil to warm up and apparently the `d' type is slower than the ` j' that I'm used to on the stag. New diff seems fine to with no noticeable whine.
The next problem I've got is the fuel pipe union nut that goes into the pump has cross threaded so I'm going to need another, can't find one locally and as were away soon I'll have to wait until after my hols before I order one.
Cheers,
Floyd

[partsaver]

Vitesse2l wrote:

I would imagine that happens. Which comes first though - the fire or the bearing damage?

Cheers

Steve B

How would a fire be caused?

[Velocita Rosso]

377 wrote:

How would a fire be caused?

Not a fire. However I heard of an Austin A40 having the same problem and it just exploded , blew the sump pan off and loads of other damage. It is not safe. The fule pump has obviously gone.

[ferny]

I once heard the story (can't remember where, maybe here?) of a lady filling her beetle up by lifting the bonnet. When someone pointed out she was filling the coolant system she seemed not to like the input. That person quickly left the station!

[Lord Sorbington]

I heard that a friend of a friend has added a litre of engine oil to the coolant of his '60s Bullitt replica Mustang.  He was trying to top up the oil but got it a bit wrong.  He's yet to sort it out.  At least it'll keep the water pump lubricated.

[PJM]

When I was in the Navy....................

We used to test the diesel generators weekly for fuel in the oil, concentrations above 5% warranted an oil change due to the danger of a crankcase explosion. Apparently they go with a bang and the sump pan blowing off would be the least of your problems!