Does anyone have ever disassembled the LPG distributor? - Page 4

volvotwofortyfive · Jul 9th, 2016, 13:48

Quote:

Originally Posted by CNGBiFuel

OK, will look. I have heard of something called the 'Italian tuneup' and it works.

I didn't know that this was "italian" method: in italian slang, we say "let's pull the neck to remove the lead" (sorry for translation... it may sound as a nonsense) but I supposed that this method was international

After a very short "googleing" I assume that it is quite different from my suggestion: the system I'm talking uses water, the "italian" tuneup seems to be "dry"

I've found an interesting video: even if that guy runs the risk to kill the throttle body, he added something in distilled water. I can't understand what, you can find the liquid's name at 02:48... What is it?

The result on piston 4 (at 06:40) seems to be very inviting:
https://www.youtube.com/watch?v=eZDISp2pdSo

.

CNGBiFuel · Jul 9th, 2016, 20:28

Yes, an 'Italian Tune-Up" has nothing to do with cat cleaning. Just something I thought I would mention. I had guessed that the last people in the world to know it as an 'Italian Tune-Up" would be any Italians! Seems I was right, you call it something completely different.
I'll follow your link.

volvotwofortyfive · Jul 14th, 2016, 09:17

Incredible....
After cleaning the distributor, the LPG consumption rised from 8,5 km per liter to 7,4 km per liter....

I was aspected to reduce it after cleaning...What's going on???

CNGBiFuel · Jul 17th, 2016, 08:09

My theory:

You'll likely find your petrol consumption has gone down. These systems for reasons classicswede (the pro on here) may be able to detail better than me use some petrol even after switchover to gas. If you've cleaned out your dist, I wold guess you are no longer limiting the LPG, so it will take more LPG. Less petrol. I (tthink) many gas systms are designed to make up the performance shortfall, use some petrol under severe load or higher revs? This becasue the compression ratio is too low for gas to give best performance, but dictated by the requirement to burn petrol.
But I'm guessing here. I might be talking out of my rectal-passage. Er... classicswede?

If I'm right, and don't deny it (I've been to Rome), you'll need to stop driving like an lunatic Italian ...

I have put a fuel pump relay cutout on my car to reduce petrol use on gas. Pressure in the fuel rail still stays high enough to start the car, and 'blows-down' the pressure a bit before switching to gas.

I often cut the relay before starting and still the car starts. I [think] I'm saving petrol.....

classicswede · Jul 17th, 2016, 23:54

Petrol should not be neing used while running on gas however some modern system can blend but the Necam system is WAY too basic to do that.

The consumption could be down to the fact you are now spending much more time running on LPG than you had done before.

The other possible is that the injector cleaner used has clogged the Lambda sensor causing it to read week

volvotwofortyfive · Jul 18th, 2016, 10:08

Quote:

Originally Posted by CNGBiFuel

My theory:

You'll likely find your petrol consumption has gone down. These systems for reasons classicswede (the pro on here) may be able to detail better than me use some petrol even after switchover to gas. If you've cleaned out your dist, I wold guess you are no longer limiting the LPG, so it will take more LPG. Less petrol. I (tthink) many gas systms are designed to make up the performance shortfall, use some petrol under severe load or higher revs? This becasue the compression ratio is too low for gas to give best performance, but dictated by the requirement to burn petrol.
But I'm guessing here. I might be talking out of my rectal-passage. Er... classicswede?

If I'm right, and don't deny it (I've been to Rome), you'll need to stop driving like an lunatic Italian ...

I have put a fuel pump relay cutout on my car to reduce petrol use on gas. Pressure in the fuel rail still stays high enough to start the car, and 'blows-down' the pressure a bit before switching to gas.

I often cut the relay before starting and still the car starts. I [think] I'm saving petrol.....

You're perfectly right... But I drive lunatic exactly as before cleaning the distributor!!!!

Quote:

Originally Posted by classicswede

Petrol should not be neing used while running on gas however some modern system can blend but the Necam system is WAY too basic to do that.

The consumption could be down to the fact you are now spending much more time running on LPG than you had done before.

The other possible is that the injector cleaner used has clogged the Lambda sensor causing it to read week

I thought about it, but at the beginning of this year I made an .xls file to compute the consumption of both fuels (taking separate count of km made at LPG and petrol... Yes, I know... I'm slightly crazy...) and the results speak clear: now the car consumes more.
I agree the lambda sond theory proposed by Classicswede , that's why, as soon as possible, I want to make an exhaust system cleaning (water aerosol ingestion).
By the way: can someone translate the name of the fluid mentioned at minute 02 and second 48 of the video i linked some posts ago?

classicswede · Jul 19th, 2016, 20:11

The fluid is something he has made himself. Dribbling in a little Cola can work

CNGBiFuel · Jul 27th, 2016, 13:05

Quote:

Petrol should not be neing used while running on gas however some modern system can blend but the Necam system is WAY too basic to do that.

The consumption could be down to the fact you are now spending much more time running on LPG than you had done before.

The other possible is that the injector cleaner used has clogged the Lambda sensor causing it to read week
__________________

Interesting. I do use petrol when running on gas, but have been putting it down to a combination of leaking petrol injectors and petrol injection under load via the Necam system. Seems it can only be leaky injectors if the Necam system is not sophisticated enough for it to be otherwise. Thanks Classic.

NI_Volvo_Nut · Jul 29th, 2016, 13:46

http://www.ebay.co.uk/itm/NECAM-MEGA...-/252161890887

Any body used one of these kits for the factory systems? Or any suggestions otherwise?

volvotwofortyfive · Jul 29th, 2016, 20:05

Quote:

Originally Posted by NI_Volvo_Nut

http://www.ebay.co.uk/itm/NECAM-MEGA...-/252161890887

Any body used one of these kits for the factory systems? Or any suggestions otherwise?

Good question! I also wait for the answer...

Jul 9th, 2016, 20:28	#32
CNGBiFuel Classic P80 1999 BiFuel Last Online: Mar 6th, 2024 00:34 Join Date: Aug 2012 Location: 48mph Middle Lane M4	Yes, an 'Italian Tune-Up" has nothing to do with cat cleaning. Just something I thought I would mention. I had guessed that the last people in the world to know it as an 'Italian Tune-Up" would be any Italians! Seems I was right, you call it something completely different. I'll follow your link. __________________ Bifuel V70 Classic 1999 [The Old Grumpy in the Corner, "When I was a lad... blah, bl*dy blah."] Last edited by CNGBiFuel; Jul 9th, 2016 at 21:02.*

Jul 17th, 2016, 08:09	#34
CNGBiFuel Classic P80 1999 BiFuel Last Online: Mar 6th, 2024 00:34 Join Date: Aug 2012 Location: 48mph Middle Lane M4	My theory: You'll likely find your petrol consumption has gone down. These systems for reasons classicswede (the pro on here) may be able to detail better than me use some petrol even after switchover to gas. If you've cleaned out your dist, I wold guess you are no longer limiting the LPG, so it will take more LPG. Less petrol. I (tthink) many gas systms are designed to make up the performance shortfall, use some petrol under severe load or higher revs? This becasue the compression ratio is too low for gas to give best performance, but dictated by the requirement to burn petrol. But I'm guessing here. I might be talking out of my rectal-passage. Er... classicswede? If I'm right, and don't deny it (I've been to Rome), you'll need to stop driving like an lunatic Italian ... I have put a fuel pump relay cutout on my car to reduce petrol use on gas. Pressure in the fuel rail still stays high enough to start the car, and 'blows-down' the pressure a bit before switching to gas. I often cut the relay before starting and still the car starts. I [think] I'm saving petrol..... __________________ Bifuel V70 Classic 1999 [The Old Grumpy in the Corner, "When I was a lad... blah, bl*dy blah."] Last edited by CNGBiFuel; Jul 17th, 2016 at 08:37.*

Jul 17th, 2016, 23:54	#35
classicswede Trader Volvo in my veins Last Online: Today 21:46 Join Date: Dec 2004 Location: Anglesey	Petrol should not be neing used while running on gas however some modern system can blend but the Necam system is WAY too basic to do that. The consumption could be down to the fact you are now spending much more time running on LPG than you had done before. The other possible is that the injector cleaner used has clogged the Lambda sensor causing it to read week __________________ http://www.classicswede.org www.classicswede.co.uk

Jul 19th, 2016, 20:11	#37
classicswede Trader Volvo in my veins Last Online: Today 21:46 Join Date: Dec 2004 Location: Anglesey	The fluid is something he has made himself. Dribbling in a little Cola can work __________________ http://www.classicswede.org www.classicswede.co.uk

Jul 29th, 2016, 13:46	#39
NI_Volvo_Nut Volvologist Last Online: Dec 6th, 2023 11:13 Join Date: Aug 2008 Location: Bangor - Norn Iron View Photos By: NI_Volvo_Nut	http://www.ebay.co.uk/itm/NECAM-MEGA...-/252161890887 Any body used one of these kits for the factory systems? Or any suggestions otherwise? __________________ What's the matter with the car I'm driving? Can't you tell that it's out of style? Should I get a set of white wall tires? Are you gonna cruise the miracle mile?

Jul 14th, 2016, 09:17	#33
volvotwofortyfive Junior Member Last Online: Oct 5th, 2019 11:36 Join Date: May 2016 Location: Roma	Incredible.... After cleaning the distributor, the LPG consumption rised from 8,5 km per liter to 7,4 km per liter.... I was aspected to reduce it after cleaning...What's going on???

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