really daft question.....

[vrooom]

can you turn the petrol engine into Diesel Engine ?

like replace the sparks plug to glow plug, and run diesel injector?

or is engine's head completely different to diesel?

Just curious

jay

[Pigeon]

...raise the compression ratio, sort out the combustion chamber (quite different on a diesel), beef up the bottom end. Yes, it can be done; see the BMC B-series 1500 diesel, or more recently, the Vauxhall diesel from the 80s-90s, which were both basically dieselised petrol engines.

You do need to do a fair bit of work to the head, to provide holes for both the glow plugs and the injectors to poke into, and for a swirl chamber if you're using indirect injection. This makes it kind of a bugger if you can't cast yourself a new head.

[wedg1e]

Rover made a diesel version of the V8....

[cptsideways]

wedg1e said:

Rover made a diesel version of the V8....

That cracked the block as it was'nt strong enough

[cptsideways]

It's still

Suck
Squeeze
Bang
Blow

Only it sucks more, no throttle
More squeeze, higher compression
Slower Bang, hence more efficient but less revs possible
Blow, lots of black stuff unless it's modern

[Justin S]

If you remember back to when Clarkson went to Cuba and someone had a petrol engine that would start on that and somehow change to diesel.It only did about 20mph.In the same programme they made brake fluid from VO5 shampoo and sugar.....

[lanciachris]

Seen a jaguar v12 that had been converted to diesel for sale once.

[Fatboy]

wedg1e said:

Rover made a diesel version of the V8....

Was originally for the Range Rover IIRC, but canned in favour of the VM unit on cost grounds? Pillocks.

[Pigeon]

Justin S said:

If you remember back to when Clarkson went to Cuba and someone had a petrol engine that would start on that and somehow change to diesel.It only did about 20mph.

Didn't see the programme, but that sounds like it may not necessarily have been a compression-ignition engine. You can run a spark-ignition engine on diesel if you can get it to carburate properly, which generally involves heat to compensate for the lower volatility.

[thepeoplespal]

Pigeon said:

Justin S said: If you remember back to when Clarkson went to Cuba and someone had a petrol engine that would start on that and somehow change to diesel.It only did about 20mph. Didn't see the programme, but that sounds like it may not necessarily have been a compression-ignition engine. You can run a spark-ignition engine on diesel if you can get it to carburate properly, which generally involves heat to compensate for the lower volatility.

Sounds like my da's Grey Ferguson Tractor, started on petrol and when the engine was warm enough it was switched over to TVO (Tractor Vapourising Oil) aka parafin. To assist the vaporising process a simple shield was attached to the manifold which retained heat from the exhaust.