5 cylinder on petrol... and 4 on LPG

volvotwofortyfive · Nov 28th, 2017, 13:15

Hello everyone,
I suppose, in a few time, I'll take contacts with CNGBiFuel for a complete refurbishment of stepper motor... BUT, meanwhile, I propose all of you a new exciting issue: engine runs "on 4" when LPG feeded.
In my previous attempts, I could see inside distributor a serie of slots in it's main cylinder. The slots are very very narrow and I had supposed that dirty could have clogged one of it. So, I poured a cleaner inside the main pipe (the pipe coming from evaporator, for short) and I waited. But nothing happened.
Given the situation, is there inside the injectors someting that could be jammed? It sound me strange because I suppose that the "injectors" are not exactly injectors but "diffusers", since they haven't electrical devices. Do these may have a sort of non-return valve or something similar?
Thank you in advance!

volvotwofortyfive · Dec 4th, 2017, 10:18

... Someone home?

Simon Jones · Dec 4th, 2017, 22:43

Have you established which cylinder is affected? What state is the ignition in? Any weaknesses with ignition will be highlighted when running on gas.

volvotwofortyfive · Dec 5th, 2017, 10:25

Quote:

Originally Posted by Simon Jones

Have you established which cylinder is affected? What state is the ignition in? Any weaknesses with ignition will be highlighted when running on gas.

Hello Simon, thanks.
No, at the moment I don't know which cylinder is the "guilty"; I didn't know that LPG is so sensitive to ignition. So I should check it before put hands on LPG devices? In case, I suppose spark plugs first, then coils?
Thanks again.

CNGBiFuel · Dec 5th, 2017, 19:24

And we're off..

This issue has been covered many times.

Simon Jones · Dec 5th, 2017, 23:18

Given that it's apparently such a well-worn subject, i would have thought it would be the perfect topic for 'sticky' at the top of this section.

Nov 28th, 2017, 13:15	#1
volvotwofortyfive Junior Member Last Online: Oct 5th, 2019 11:36 Join Date: May 2016 Location: Roma	5 cylinder on petrol... and 4 on LPG Hello everyone, I suppose, in a few time, I'll take contacts with CNGBiFuel for a complete refurbishment of stepper motor... BUT, meanwhile, I propose all of you a new exciting issue: engine runs "on 4" when LPG feeded. In my previous attempts, I could see inside distributor a serie of slots in it's main cylinder. The slots are very very narrow and I had supposed that dirty could have clogged one of it. So, I poured a cleaner inside the main pipe (the pipe coming from evaporator, for short) and I waited. But nothing happened. Given the situation, is there inside the injectors someting that could be jammed? It sound me strange because I suppose that the "injectors" are not exactly injectors but "diffusers", since they haven't electrical devices. Do these may have a sort of non-return valve or something similar? Thank you in advance!

Dec 4th, 2017, 22:43	#3
Simon Jones Premier Member Last Online: Jan 15th, 2022 11:23 Join Date: Feb 2009 Location: Salisbury (ish)	Have you established which cylinder is affected? What state is the ignition in? Any weaknesses with ignition will be highlighted when running on gas. __________________ 2008 XC70 3.2 SE Lux with LPG conversion - current 2005 XC70 D5 SE Lux - sold 2004 XC70 D5 SE Lux - written off by another XC70 2001 V70 D5 - sold 2000 V70 Classic 2.4 - sold

Dec 5th, 2017, 19:24	#5
CNGBiFuel Classic P80 1999 BiFuel Last Online: Mar 6th, 2024 00:34 Join Date: Aug 2012 Location: 48mph Middle Lane M4	And we're off.. This issue has been covered many times. __________________ Bifuel V70 Classic 1999 [The Old Grumpy in the Corner, "When I was a lad... blah, bl**dy blah."]

Dec 5th, 2017, 23:18	#6
Simon Jones Premier Member Last Online: Jan 15th, 2022 11:23 Join Date: Feb 2009 Location: Salisbury (ish)	Given that it's apparently such a well-worn subject, i would have thought it would be the perfect topic for 'sticky' at the top of this section. __________________ 2008 XC70 3.2 SE Lux with LPG conversion - current 2005 XC70 D5 SE Lux - sold 2004 XC70 D5 SE Lux - written off by another XC70 2001 V70 D5 - sold 2000 V70 Classic 2.4 - sold

Dec 4th, 2017, 10:18	#2
volvotwofortyfive Junior Member Last Online: Oct 5th, 2019 11:36 Join Date: May 2016 Location: Roma	... Someone home?

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