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Thread: V8 sticking valves, a solution that worked for me

  1. 1st December 2009, 12:05 PM #1
    jackp46 Guest

    V8 sticking valves, a solution that worked for me

    I recently purchased a 1994 Disco V8i auto which had had a sedentary life in Coober Pedy and a diet of poor fuel hence the varnished valves with lots of backfiring etc. It was so bad I could not go beyond second gear on any hills. I started using Ethanol fuel mainly because it was cheaper and had a higher octane rating and noticed a slight improvement in performance. After a much needed oil change I added 500mls of ROIL, a Newways product, to the oil, something I have always done with older vehicles to enhance the running and offer some engine protection. After about 150 kms the backfiring stopped and I can now get up most hills in drive which previously was impossible. I do not know which product is responsible, maybe a combination of both, but I do know I have avoided a "heads off" scenario to fix the problem. I hasten to add I am not a Newways agent. I have two discos now the other is a 1993 Tdi which has been amazing, now up to 300,000 kms. Cheers, jackp46
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  2. 2nd December 2009, 11:12 AM #2
    trobbo's Avatar
    trobbo
    trobbo is offline Master
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    Red X will also do a similiar job if it is still available. Problem is often caused by a build up of carbon.
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  3. 3rd December 2009, 05:38 AM #3
    Blknight.aus's Avatar
    Blknight.aus
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    removing the air filter and using a water mister to spray water into the intake of the engine once its warmed up and sitting on high idle will also occasionally work.
    Dave

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  4. 3rd December 2009, 09:12 AM #4
    roverspec
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    Lifter Free by nulon is good as well.
    we have used on a couple of 3.9 up here, then we dumped the oil and put a good quality in there and their still purring away.

    My thoughts any way.

    carla
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  5. 4th December 2009, 07:27 AM #5
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    Boxer
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    LPG conversion = no carbon buildup
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