Volvo C70 LPG Conversion

[001experts]

LPG Conversion Volvo C70 in Autogas Experts


LPG FILLING POINT



LPG TANK IN SPARE WHEEL WELL



ENGINE AFTER CONVERSION



LPG/PETROL SWITCH

[classicswede]

A shame the switch has been fitted where it can not been seen by the driver while driving!

I take it the filler was wrongly placed in the plastic bumper as a customer request?

[jjd101]

I've been thinking about converting my C70 to LPG. I agree with the switch location not being ideal. I thought next to the gearstick opposite the cig lighter for symmetry (There's my OCD kicking in)

Classicswede - I am aware you are a conversion specialist. Can you explain why the bumper is not a great place for the filler?

001experts - what size tank has been fitted please? I've spoken to a firm in my area and they reckon a 60l tank can be fitted without needing to raise the boot floor

[capt jack]

Originally Posted by jjd101

I've been thinking about converting my C70 to LPG. I agree with the switch location not being ideal. I thought next to the gearstick opposite the cig lighter for symmetry (There's my OCD kicking in)

Classicswede - I am aware you are a conversion specialist. Can you explain why the bumper is not a great place for the filler?

001experts - what size tank has been fitted please? I've spoken to a firm in my area and they reckon a 60l tank can be fitted without needing to raise the boot floor

You need the switch where you can see and reach it. The blank switch panel alongside the foglamp switch is ideal.

Filling the LPG tank requires a bit of force to connect the filler. The plastic bumper will probably crack over time. It needs to be supported by metalwork. Best place is either in the metalwork beside the petrol filler flap, or possibly to the towbar.

A 60 litre tank will fit, but of course it'll only fill to 50 litres or so. There has to be a 20% leeway to allow for expansion.

Pics attached from my V70!

Cheers

Jack

[classicswede]

The reason the filler is not supposed to be mounted in plastic panels is due to flex. Over time with the flexing the copper filler pipe will start to crack and leak.
It is possible to go into plastic and use a flexible pipe but I very much doubt that has been done.

It is a regular job that I have to do with local car is resolving problems where the filler has been fitted to a plastic bumper.

[cgerak71]

I am thinking of making the conversion to LPG but I have some queries.
So could you please inform me the following?
1. Which is the size of the tank you have installed?
2. How many kilometers autonomy does this tank give to you?
3. Are you sutisfied with the use of LPG?
4. Have you suffered any engine malfunctions?

[capt jack]

In my V70 I have a 60 litre tank, which can be filled to 50 litres capacity. LPG tanks can never be completely filled as you have to leave some room for the gas to expand.

This gives a range of between 250 and 280 miles, which is 400 to 450 kilometers.

I have been very pleased with my LPG conversion, which has now been on the car for 8 years. In that time I have driven over 210,000 miles which is 330,000 kilometers.

No major problems with the engine at all. LPG is good for engines! The oil stays much cleaner with LPG than with petrol, and if the LPG is properly installed and sensibly maintained I think that an LPG engine will last longer than one being used on petrol only.

Cheers

Jack

[volvobaggen]

I have an 855 with the same engine as jack, and im also very pleased. I have only been driving with lpg for half a year, clocked 2000 km, but so far, so good.

Im not so sure if engines will last longer on lpg than petrol, but fre-ford engines seem to of very good material and build quality. After all, lpg is a dryer fuel.

I have a 60 litres tank, which gives me 48 litres of effective fill volume. With this tank i think i can drive approximately somewhere in the range of 450-500 kilometres. Last run on countryroads over the mountain the car used 41 litres of lpg on a trip of 440 kilometres.

This last run was done with new air-filter, oil and filter, new NGK BKR6ES plugs, new rotor, dizzy and slight hyperinflation of tires.

Im suprised over how good milage I get from lpg. Almost to the point where im afraid that my engine burns lean

[classicswede]

Originally Posted by cgerak71

I am thinking of making the conversion to LPG but I have some queries.
So could you please inform me the following?
1. Which is the size of the tank you have installed?
2. How many kilometers autonomy does this tank give to you?
3. Are you sutisfied with the use of LPG?
4. Have you suffered any engine malfunctions?

1) you have a number of spare wheel tank options in the C70. A 50ltr tank will fit without lifting the floor. You can go upto a 95ltr tank by raising the floor level in line with the raised over axle section.
2) this will very with engine type, transmission type and driving style. Expect to use around 10% more LPG than petrol.
3) Not for me to answer this question but with a typical multi point system the engine will run smoothly.
4) This depends on engine type (year of production) as engines after ford involvment need valve protection.

LPG does show up ignition weakness and the C70's do suffer coil pack failure but they are easy to replace. They should be changed as a full set but often they are changed only one at a time. Make sure you have suitable spark plugs fitted.

[940_Turbo]

Originally Posted by jjd101

I've been thinking about converting my C70 to LPG. I agree with the switch location not being ideal. I thought next to the gearstick opposite the cig lighter for symmetry (There's my OCD kicking in)

Classicswede - I am aware you are a conversion specialist. Can you explain why the bumper is not a great place for the filler?

001experts - what size tank has been fitted please? I've spoken to a firm in my area and they reckon a 60l tank can be fitted without needing to raise the boot floor

I strongly suggest you read these threads first

http://www.volvoforums.org.uk/showthread.php?t=159399

http://www.volvoforums.org.uk/showthread.php?t=159255