Techie type question
 

Is the specific gravity of diesel greater then unleaded petrol??

have you put the wrong fuel in the car / bike ?

Ermm i'm not admitting to anything yet :rolleye:

Diesel is 820 to 950 kg/m3.
Petrol is 737.22 kg/m3

If you are not in a hurry for the answer I will be able to give you the exact figures when I am back at work in the morning. (Update - Rock Hopper has beat me to it as I was typing this)

I work in the lubes division of a major Oil company and I'm sure one of my colleagues in fuels will be able to advise the SG of the fuels.

If you do have a problem, you can U2U me and I'll see what I can do to help.

[Edited on 17-4-2006 by Carbon749]

That'll be a yes then ;)
Nige, they mix too well for you to seperate them from your tank mate, Drain it all off and replace the fuel filter, take your plugs out and give them a good clean. Give the dieso to anyone with a diesel motor and refill with petrol, turn the engine over in a nice BIG open space and wait for it to fire up, then make sure you're wearing a smoke mask! It won't have damaged anything as dieso is a light lubricant. Not that I'm speaking from experience of course :smug:

That is unless you put unleaded in your diesel and tried to start it :o ... not good.

I did it the other way around ... put about 5 gallon of diesel in to my petrol car. Thankfully the tank was almost empty so I filled it to the top with unleaded and just let it smoke for a while :D

Would it be advisable to turn it over with the plugs out first and a couple of rags over the holes? (After refilling with petrol of course)

Thanks for the answers i asked because on looking in the tank and having a sniff couldn't smell diesel .
I filled up at the station on the roundabout north of boxhill, i definitely filled up with unleaded albeit from the pump with a diesel nozzle.
(green premium unlead sticker on nozzle and on the place where it sits, diesel nozzle is black ) .
Tank was about a third full when i refilled , got about 5mls onto A29 when it started to hesitate on acceleration, i thought it may be carb icing so stopped to let the carbs warm up while doing this i was blipping the throttle and noticed bluey white smoke when i shut off .
Started off again and thought no more of it as it cleared up at the top end of the revs , by the time i got near home it was not accelerating properly and backfiring on part throttle, then it went onto 3 cylinders with clouds of bluey smoke on the overrun.
Got home but it wouldn't start next day i'm not convinced it's diesel because surely i wouldn't have got 40 odd miles from boxhill :puzzled:
And also if it was burning diesel surely there would have been smoke under acceleration :puzzled: there was none why only on the overrun did it smoke ?? i was using the top end of the rev range because that was the only way to get any decent acceleration.

Sadly I have to admit...
 

It doesn't sound like diesel contamination Nige, I know you know I know what i'm talking about mate ;)
Get Alf to have a gander :(

Broken scraper piston ring ???

Drained the tank today and refilled with fresh and some fuel system cleaner after countless attempts only managed to get it to run for 3 secs with the choke on , had to give up as the battery was suffering and it started to rain .
I wish i had a garage :rolleye:

will have another go after work tomorrow or before work on saturday battery should be charged by then as well

Tried again today no luck i only have basic tools and a dusty car park to work in so i'm calling the bike shop tomorrow to get them to pick it up .

The ZX7r was taken away today in a van still a non runner despite my best attempts :( .
I did complain to Texaco who to their credit replied very quickly but it turns out they just supply the petrol for the station north of box hill (givons grove roundabout) , the site is actually run by Somerfield .
So i have been onto them now but no reply so far :rolleye: .

No way IMHO, even small amounts of petrol can kill a modern diesel fuel pump in some cases, sometimes you may get away with it but with the cost of a diesel fuel pump i wouldn't take the risk.

I've had 2 dozy drivers recently put petrol in diesel vehicles, one we were lucky with as he realised his mistake after a few litres and didn't start the van, the other cost £3000 including recovery of a stranded 7.5 tonne lorry:flame: Admittedly driver had put 90 litres of petrol in.