BOOM how to destroy an engine!!

[skyship007]

Originally Posted by ma70

How's Morrison's own brand 20w/50 mineral? tenner a gallon, Think it meets API "SB".

I was thinking of getting it tested, BUT it was a cold day and it would have taken too long to pour out a sample (20w is a tad thick in winter).

Surprised that Morries are selling an oil that is certified by the API (American Pet Industry) in the UK. The ultra fine fur particles tend to block the filter.

Good joke on the SB cat:
http://www.pqiamerica.com/apiserviceclass.htm

[skyship007]

Originally Posted by tommy t4

Skyship I have rebuilding and building engines for the best part of 15yrs, when I say it's caused by lack of oil due to the pick up being blocked then thats what it is, seen the same damage thru engines with pick up blocked. Not that I need to explain my reasoning!

Sorry, as I was assuming the engine was correctly maintained (Few are), so an oil seal that fell into the sump could be a case of the last straw if the screen was already partly blocked.

[sullybosco]

Originally Posted by ma70

Haha class act I thought too much boost was an impossibility, it's just they don't make metal hard enough yet? (unless we're talking Toyota 7M properly assembled & then it's just a case of wind it up till the turbo eats it's thrust brg, fit new bigger turbo & wind up some more I miss that car website, it was ridiculously tough & a nice antidote to the Alfa).

Actually, I have a spare (with new CHRA/360 thrust) CT26 57 trim sat here... Wonder what sort of revs it'd spin up at on a B4184 haha now that'd be a project

Reportedly hired man put diesel engine oil in a gasoline engine in a pickup and ruined the engine. Anyone heard or experienced this?

[canis]

Originally Posted by sullybosco

Reportedly hired man put diesel engine oil in a gasoline engine in a pickup and ruined the engine. Anyone heard or experienced this?

I once filled a diesel tank with petrol. I never thought I'd be that stupid, but I was in a work's van, and it was a different van. It had it's filler cap on the opposite side. So, frustrated, I got back in and moved it to the other side, jumped out, grabbed the nozzle and filled. Geometrically it was the same nozzle, but on the opposite the order was reversed, and I'd grabbed the wrong one in my haste. Of course, I didn't know this until I'd paid and got about a hundred yards down the road and gradually lost power.

Back home, after a twenty mile tow and several hours later, I drained as much as possible from the tank into the only vessel large enough - a brewing bucket. This petrol was obviously contaminated, but it was free so we used it in our cars anyway.

I connected the fuel return pipe to a can, and pumped the rest out that way. I added a small quantity of diesel, and got the truck to splutter into life. The contaminated fuel continued to discharge into the can, and I let it starve for fuel. Again, I added a small quantity, and again got it running. Smoke everywhere! I continued starving the engine of fuel until it would run cleanly, diluting the petrol out of it.

People always talk about improper fuelling damaging engines. But I didn't notice any problem. It was a nuisance, and it took me most of the next day, and it was a lot of messing around with flammables, but there was no mechanical damage.

Putting diesel into a petrol engine, though, I dunno about that. Diesel engines are stronger. I would imagine diesel in a petrol engine would cause terrible pinking, and that clattering sound can only mean damage to something somewhere in there. But I'm guessing - I don't intend to find out.

Never thought it would happen to me though.

[john.wigley]

Originally Posted by canis

I once filled a diesel tank with petrol...

'Snip'

Never thought it would happen to me though.

Don't beat yourself up, 'canis', it's an easy mistake to make!

Years ago, it used to be common practice to put up to 10% of petrol in a DERV to facilitate easy starting and mitigate against fuel 'waxing', especially during the winter months.

Then there was Redex'. Talk about smoke. It wasn't bad if used as intended, i.e. a 'shot' per gallon in the tank, but, poured neat into the carb, it was a remarkably efficient engine cleaner. The resulting thick acrid grey smoke would not have seemed out of place in a James Bond movie!

Regards, John.

[Cloth Ears]

My understanding with misfuelling a diesel with petrol is that the main risk is to the high pressure injection pump, which operates at stupid pressures and is therefore a pretty close-tolerance unit. The pump is lubricated, in part at least, by the fuel itself and running petrol through it risks the pump failing in the fairly short term even if immediate failure doesn't happen.

It's possible that a van might be running a more robust fuel pump, because the engines aren't at such a high state of tune, so you could get away with it.

But if I understand the query from the new poster, it's about putting oil for a diesel engine into a petrol engine. I'd not have thought that was an issue. And if it's misfuelling a petrol engine with diesel fuel, similarly, you'd get a lot of smoke and it'd stop running, but once cleaned out and refuelled, no lasting damage I'd have thought.