backfire on 2.2 4Y hilux DC.

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johanbruce
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backfire on 2.2 4Y hilux DC.

Post by johanbruce »

Goeie dag vriende. Ek het onlangs my 4Y 2.2 vervang met een van die ingevoerde 4Y engins wat Autozone verkoop. Die ou oorspronklike vergasser wat 300,000km gedoen het is weer gebruik. Die motor loop goed en het so 5000km gedoen maar ek sukkel met n Backfire wanneer ek spoed verminder of teen afderaand teen kompressie ry. Garage het al verskillende verstellings aan vergasser gedoen maar kry dit nie reg nie. Kompressie op al 4 is 1100. Gebruik loodvry petrol. Pluggap is .8mm . enige raad wat ek kan probeer. Johan Bruce
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Mud Dog
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Re: backfire on 2.2 4Y hilux DC.

Post by Mud Dog »

Dis heel moontlik 'n vergasser probleem ..... ongebrande brandstof in die exhaust manifold. Hy's of te ryk gestel of geslyt. Weetie of jy nog vir hulle carb kits kan kry nie, probeer maar by die agente. :think:

Ander ding kan miskien timing wees - op hoeveel grade is hy gestel?
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richardo1
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Re: backfire on 2.2 4Y hilux DC.

Post by richardo1 »

Hi daar

Sit ma vir jou nuwe punte en kondenser in as hy nie electronic distributor in het nie ! Die punte maak dan heel moontlik nie meer oop nie
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dalkill
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Re: backfire on 2.2 4Y hilux DC.

Post by dalkill »

i had a backfire develop on my 2.2 fongkong motor after i fitted the LPG kit to the car.
driving on LPG the car would sometime backfire... but not thru exhaust manifold... but thru intake manifold i suspect.
Cause it blew my air filter to stukkend.

i took it back to the installers who found problem with the newish distributor if i remember correctly... motor had about 10000km on. fixed that and no more backfires.
2016 2.4GD6 SR D/C 4x4 (Oct 2022 - current) (Buraaq VI)
2007 d4d 3.0 D/C 4x4 (Mar 2016 - July 2022) (Buraaq V)
2003 Isuzu KB300 D/C 4x4 (May 2015 - Feb 2016) aka Buraaq IV
2000 hilux DC 2.7 4x4 (Jul 2011 - Sep 2012) aka Buraaq III
1999 RXI 20v (Nov 2009 - Jul 2011) aka Quicksilver
1990 hilux DC 2.2 4x4 (Jun 2008 - Jul 2011) aka Buraaq II
1997 corolla 160i GLE (Feb 2007 - Sep 2009) aka Green Goblin
1990 GLI twincam (still my fav rolla) (Oct 2005 - Mar 2007) aka Wit Blitz
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1993 hilux SC 2.2 4x4 (April 2003 - Sept 2005) aka Buraaq

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Re: backfire on 2.2 4Y hilux DC.

Post by Mr_B »

Also check for cracks or tracking marks in the distributor cap. Both of these can cause misfiring on the electrodes and cause backfiring under engine compression.
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