P38 4.0 V8 with LPG and Exhast Vapour

Alright,

Quick question to hopefully quell my paranoia, this morning when it was about 6 degrees C outside and chucking it down, I noticed exhaust vapours when pulling off or on step down whilst on my 12 mile drive to work.

This was just initial plumes when setting off and some steady vapour on tickover... is this normal or am I going to start crying and pointing towards head gasket?

Regards,

Diehard

In my Classic with LPG....

In the cooler damp weather, when running on Gas, the exhaust vapour was more noticable....I think this is due to the moisture content of burnt LPG....

It shouldn't be anything to worry about aslong as it is white and fluffy, not black or blue or smelly...

Yeah its white and fluffy lol

Ill not panic too much then, just think the V8 P38 breeds worry!

Noticed that with both my LPG Discovery and P38 on cold damp mornings.
Both done many miles since so don't worry.

Diehard

mine does the same - as mentioned already, it's perfectly normal.
if it's white & fluffy don't worry.

same with mine so shouldn't be anything to worry about

All internal combustion engines make noticable amounts of water vapour in cold damp conditions. Specially just after start up it is quite normal.

Hi mate my p38 4.6 is white and fluffy in the cold too!

I Have p38 4.6 on lpg been runing great for the last 5yrs on lpg, it now lacks eccelaration, changed airflow meter and coils still has lack of accelaration, any one else had this problem?

s2716h said:

I Have p38 4.6 on lpg been runing great for the last 5yrs on lpg, it now lacks eccelaration, changed airflow meter and coils still has lack of accelaration, any one else had this problem?

Click to expand...

I was speaking to Turners a while back about LPG and 4.6's ...... it was something I was looking at.
There comment was that although it's cheaper etc etc etc ... thay have a workshop full of heads for re-manufacture from LPG motors. Something about valve seats if I recall.
After 5 years it may be time for some head re-freshing .....

Cheers for the info guys