Shop4Parts - UK's largest online superstore for FIAT and Alfa Romeo parts

Technical Lpg

Currently reading:
Technical Lpg

LPG as fuel is fine cheap and safe but the aftermarket kit systems are not 100% compatible with petrol engines.(well at least when I had a kit back in 2013 it wasn't)

Performance may be the same and you will not feel any difference but engine timing is wrong almost all over the map. That's why many engines with non-hydraulic valves had problems very very soon after installing LGP kits.

Temperature is a problem too, coil packs are working harder, injectors clogging, burned cats and many more problems.

I know some guys from Italy driving many years with LPG on their T-jets and around 200.000 KM they had valve seat problems which is not normal for an engine like that.

Maybe newer systems solved many of that issues?!
Is liquid LPG an option now?(for our engines)
 
Last edited:
cmosfxx said:
I know some guys from Italy driving many years with LPG on their T-jets and around 200.000 KM they had valve seat problems which is not normal for an engine like that.
Click to expand...

Some engines suffer with this, others don't. Depends upon the materials the engine has been built with. A decent LPG installer will know which ones do and which ones don't and fit a flash lube kit to those which need it - or fit one regardless if they don't know.
 
Actually some after market kits are more reliable than factory installs! The problem with after market is how good is the installation? Cars that have liquid LPG injection as factory installs can have very expensive maintenance costs. The pump inside the tank is about a grand to replace! Factory installs often don't come with a spare wheel at all! Or if they do a small petrol tank is fitted with a capacity of just enough to get you started in the Winter months.
It is important before having an installation to check that the engine is compatible. You may need to have the valves hardened or at least have an extra installation of special lubricant done.
Nobody has come across any installation issues with Punto engines and indeed with Fiat engines in general.
for me the biggest disadvantage is loosing boot space to the spare wheel. But at least I've got one!!
 
Last edited:
cmosfxx said:
I know some guys from Italy driving many years with LPG on their T-jets and around 200.000 KM they had valve seat problems which is not normal for an engine like that.

Maybe newer systems solved many of that issues?!
Is liquid LPG an option now?(for our engines)
Click to expand...
200k km before valve seat problems isn't bad at all. It's the downside of a cleaner burning fuel, you can expect similar/worse from the OEM lpg and cng cars.
That's still not any worse than the issues you can expect when a modern diesel has its midlife crisis and by the time you've reached that point you saved a lot more than what a head revision will cost you.
 
Someone told me years ago that LPG fueled cars are not allowed through the Blackwall and Rotherhythe tunnels because this gas is heavier than air and sinks to the road surface when it leaks, presenting an explosion risk. Any truth in this or is it nonsense?
 
rolandbrindley said:
Someone told me years ago that LPG fueled cars are not allowed through the Blackwall and Rotherhythe tunnels because this gas is heavier than air and sinks to the road surface when it leaks, presenting an explosion risk. Any truth in this or is it nonsense?
Click to expand...

Nope, a load of bull luckily. The only thing you can't go on with them is eurotunnel train. Other than that no issues.
 
Most Easterly Pandas said:
Nope, a load of bull luckily. The only thing you can't go on with them is eurotunnel train. Other than that no issues.
Click to expand...

None of the fires in the Chunnel have been down to LPG as far as I'm aware! Perhaps for extra safety they should ban diesel and petrol vehicles too! lol
 
You must log in or register to reply here.

Similar threads

D
General D25's Fiat punto lpg
Replies
7
Views
1K
D25
D
Back
Top