 | Home > Technical > engine noise - SOLVED !! |
 
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248   
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I have been doing a lot of off road driving recently and noticed that after using low range 2d, 3rd, 4th for a couple of hours my engine starts to sound like a 1980's transit, pinking and knocking badly under power.
Once back in normal road conditions the sound continues for about 100 miles or so and then quietens down again. Any ideas ? Bob Last edited by bob neville on 11th Oct 2010 7:25pm. Edited 2 times in total |
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3rd Oct 2010 7:56pm |
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| Grockle Member Since: 24 Nov 2008 Location: Peak District National Park Posts: 2266  
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have you checked your oil level 2.4 90 XS
1968 1/32 scale Britains 109 Pick up. |
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4th Oct 2010 7:33am |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248
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Oil level is full, only serviced a couple of months ago.
Oil was my first thought as well but I am checking the level every day at present just in case. Only stupid idea I had was something like the EGR valve, becoming messed up with the slow running and then clearing in normal use. Can't see why that would make the engine rattle like a bag of nails though. Bob |
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4th Oct 2010 11:05am |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248
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Shell Fuel Save strikes again !!
As I could not get V-power diesel, I had been filling up with Fuel Save. Apart from my MPG dropping to 23/24 it would appear that the fuel was the cause of the knocking from my engine. With a half tank of V-power through the engine things are back to normal - 28 mpg + and no knocking noise 
Now where did I put trading standards phone number 
Bob Last edited by bob neville on 11th Oct 2010 8:10pm. Edited 1 time in total |
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11th Oct 2010 7:34pm |
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| markb110 Member Since: 22 May 2010 Location: Guildford Posts: 2652  
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Normally when i get a strange and annoying noise my first move is to ask the wife to step out!!!!
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11th Oct 2010 8:06pm |
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| mse Member Since: 06 Apr 2008 Location: UK Posts: 5045 
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Bob, how are you finding V-power, ive just moved away from Shell to BP to see if its the fuel as ive noticed less mpg and a more "noisy" engine with shell, although i did get 27mpg from the last tank - the rest have all been 23/24 agains 28/29 Mike |
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12th Oct 2010 3:10pm |
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| BigRuss Member Since: 15 May 2010 Location: Norfolk Posts: 2785 
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I've also just moved to BP but will wait until the next tank once all the shell has been burnt through to see what my MPG is.
I have however already noticed the engine is a quieter! Russell 2011MY 110 XS USW Black |
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12th Oct 2010 6:11pm |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248
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Mike I find V-power a good fuel, SWHMO uses it in her Porsche as well and gets good MPG and performance from it. In my 110, I get 28+ mpg and no 'transit' knocking from the engine. I used BP coming back from Yorkshire recently and still had knocking from the engine but this was probably the remnants of Fuel Save' going through. When we use Fuel Save in the Porsche we get engine knock as well - I see a pattern here ! Bob |
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12th Oct 2010 7:10pm |
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| BigRuss Member Since: 15 May 2010 Location: Norfolk Posts: 2785
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Time for a bit of dogwatch
 Russell
2011MY 110 XS USW Black |
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12th Oct 2010 7:31pm |
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| 110SEB Member Since: 29 Jan 2009 Location: Essex, England Posts: 1444 
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Our 110 drinks almost exclusively BP and we have not had any problems with it. No Shell garages near us so don't have any experience of Fuel Save.
No probs with Esso either. |
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12th Oct 2010 7:33pm |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248
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We only have Shell locally - we are rather rural ! I have used BP in the past and not had any problems. I think I will see what Shell have to say and then onto dog watch
Bob |
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12th Oct 2010 7:50pm |
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| mse Member Since: 06 Apr 2008 Location: UK Posts: 5045
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I was toying with contacting them - have you? If it was better, i would hope to see some benefit on one of the cars! We will see how bp does...it maybe a penny more, but it just adds to the nectar points. Mike |
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12th Oct 2010 9:56pm |
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