back fire on accelration
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- Oil Pump
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back fire on accelration
Hi all
Where to start ,1600 TP motor in a late bay.
When accelerating jerks and power low then it back fires.It started doing this and then cleared but this weekend no luck.Checked the timing and dwell angle and that is spot on.
Where to start ,1600 TP motor in a late bay.
When accelerating jerks and power low then it back fires.It started doing this and then cleared but this weekend no luck.Checked the timing and dwell angle and that is spot on.
- John Alves
- Crankshaft
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Re: back fire on accelration
when does this happen? engine cold? engine hot? all the time? does it happen on deceleration as well?
touch the exhausts see which one is cooler than the rest, possible bad plug??
touch the exhausts see which one is cooler than the rest, possible bad plug??
No sense being pessimistic. It wouldn't work anyway.
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle
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- Oil Pump
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Re: back fire on accelration
All the time ,seems only on acceleration .will check plugs and leads as soon as I get a chance.Will check the exhausts as well.Thanks
- Tony Z
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Re: back fire on accelration
sounds like the pump jet isnt working as it should
ANGRRR
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=14775
1302S
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=33521
Panel Van
http://www.aircooledvwsa.co.za/viewtopic.php?p=288723
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=14775
1302S
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=33521
Panel Van
http://www.aircooledvwsa.co.za/viewtopic.php?p=288723
vader wrote: The Force is strong with you young Sith Lord Z!
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- Oil Pump
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Re: back fire on accelration
Hi Tony ,I will check the pump jet system but it also does it a constant acceleration.Nothing on de-acceleration.
- Tony Z
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Re: back fire on accelration
Then likely a vacuum leakVintage man wrote: ↑Tue May 29, 2018 11:38 am Hi Tony ,I will check the pump jet system but it also does it a constant acceleration.Nothing on de-acceleration.
ANGRRR
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=14775
1302S
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=33521
Panel Van
http://www.aircooledvwsa.co.za/viewtopic.php?p=288723
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=14775
1302S
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=33521
Panel Van
http://www.aircooledvwsa.co.za/viewtopic.php?p=288723
vader wrote: The Force is strong with you young Sith Lord Z!
- Tony Z
- Donor
- Posts: 14992
- Joined: Wed Sep 14, 2005 8:33 am
- What model do you have?: 2.3L 69; 1302; P/Van
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Re: back fire on accelration
ANGRRR
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=14775
1302S
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=33521
Panel Van
http://www.aircooledvwsa.co.za/viewtopic.php?p=288723
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=14775
1302S
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=33521
Panel Van
http://www.aircooledvwsa.co.za/viewtopic.php?p=288723
vader wrote: The Force is strong with you young Sith Lord Z!
- John Alves
- Crankshaft
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Re: back fire on accelration
I now have a laser temp gauge so no more finger burns
No sense being pessimistic. It wouldn't work anyway.
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle
-
- Oil Pump
- Posts: 280
- Joined: Thu Apr 20, 2017 4:36 am
- What model do you have?: 1976 bay window
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- Has thanked: 51 times
- Been thanked: 7 times
- John Alves
- Crankshaft
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- Joined: Thu Jan 31, 2008 1:06 pm
- What model do you have?: 58Ghia 68bug68buggy
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Re: back fire on accelration
the colder one would be the one with the misfire (if the problem is plug related)
No sense being pessimistic. It wouldn't work anyway.
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle
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- Fuel Injection
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Re: back fire on accelration
Sucking air use the old hair spray trick, my 2c.
I think I was barking up the wrong tree.I was thinking of de acceleration.
I think I was barking up the wrong tree.I was thinking of de acceleration.
Last edited by Terry Phillips on Sun Jun 10, 2018 11:03 pm, edited 1 time in total.
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- Oil Pump
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Re: back fire on accelration
Reset the volume and bypass on the carb as per Google and runs smooths. Out on the highway and a bit of town driving, I'm chuffed, Thanks all that gave advice as I did do as adviced as well so another learning my bus.