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| pinking | |
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| Tweet Topic Started: Fri Nov 19, 2010 8:46 am (1,111 Views) | |
| HOTFUZZ | Fri Nov 19, 2010 8:46 am Post #1 |
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Part of things
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i changed the head gasket service the engine if i drive under 2500 revs its ok go over it starts pinking "before" can you help plz |
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| Stempies | Fri Nov 19, 2010 9:57 am Post #2 |
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Hot Lips
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Did you loosen the distributor bolt when doing the gasket, it may have moved! Or have you left a vacuum pipe off it?? Or worst case is that the timing chain is one notch out! Hope it's something simple, good luck!!
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| HOTFUZZ | Fri Nov 19, 2010 10:51 am Post #3 |
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timing chain was spot on so i will have a look a dizzy i think |
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| chrismatheou | Fri Nov 19, 2010 1:26 pm Post #4 |
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Enthusiastic Bad Boy
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It might be running too lean which is the most common cause of pinking. |
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| HOTFUZZ | Fri Nov 19, 2010 2:01 pm Post #5 |
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HOW do i do that
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| shrekky | Fri Nov 19, 2010 2:05 pm Post #6 |
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Troll hunter
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if it was ok before doing the head gasket, and only started to happen after, chances are its timing (dizzy ) timing to far advanced or retarded will cause pinking |
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| chrismatheou | Fri Nov 19, 2010 3:12 pm Post #7 |
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Enthusiastic Bad Boy
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What Shrekkys saying sounds more likely seen as you've done work on the engine, still it's not too difficult to get it on the emissions tester to see if the mixture is set up correctly. |
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| HOTFUZZ | Fri Nov 19, 2010 6:25 pm Post #8 |
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What the same as they have at a mot garage |
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| balamb37 | Fri Nov 19, 2010 6:37 pm Post #9 |
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Grumpy Old Grampa with Dog
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With regards to the 'Timing Chain' was it spot-on before you put the 'Tensioner' back in or after as it would make a difference. And yes the 'emission tester' at an MOT station would or should show whether the mixture is Ok. |
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| chrismatheou | Fri Nov 19, 2010 8:31 pm Post #10 |
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Enthusiastic Bad Boy
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Yes, MOT garage. You can tell if it's blatantly running too lean if the exhaust stinks but be careful for now not to give it too many beans as you can toast your engine especially if it's bad... |
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| mertz88 | Tue Nov 23, 2010 6:08 am Post #11 |
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Tom
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Did you get the Head Machined/Skimmed? Mine was Skimmed and now i think it has changed the compression Ratio? mine pinks pretty badly now |
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| HOTFUZZ | Sat Jan 1, 2011 5:07 pm Post #12 |
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No never had the head Skimmed it was all ok what my problem was the the head wes eating away at its self and gaps was forming letting the walter mix with oil. But all is good now still getting pinking going to buy sum new kit soon
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| RobertE | Sat Jan 1, 2011 6:46 pm Post #13 |
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Serial victim...
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That may be an ignition timing issue - in my experience it usually is. |
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| Gerry Lloyd | Mon Jan 3, 2011 2:32 am Post #14 |
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Monsieur
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Is it definitely pinging that you are hearing? You usually notice it under load, as when you come to a hill and the engine has more work to do. In other words, when the revs are comparatively low is when the pinging tends to be heard. If you change down to accelerate the pinging is less noticeable with the higher revs and the engine being under less load. Pinging is definitely a result of advanced ignition timing. When the timing is retarded, the sympton is lack of power and the engine tending to run a bit hotter. If you really think that you have pinging, all you have to do to test this is turn the body of the distributor a few degrees clockwise (the same direction as the rotor arm turns). Try small adjustments and test drive. Ideally a techie with strobe lights etc could get the factory spec setting but you might get by without the expense. Of course, Stempies might have the worse case answer: the chain might be out by a notch. Having no experience of this it's logical that it would affect the valve/piston synchrony and might cause pinging. It wouldn't be sorted by adjusting the distributor but I'll take your word that the chain is back right. Edited by Gerry Lloyd, Mon Jan 3, 2011 6:34 am.
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| blumerc | Sat Oct 7, 2017 6:48 pm Post #15 |
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Hi all, mine has developed this pinking/pinging under load before an incline. I always use Shell V power fuel, the plugs were changed in August, the injectors were replaced in 2014, and it passed the MOT yesterday with no advisories, CO level 1.97%. The timing plug has not been moved and faces the way shown in the Haynes manual. I don't want to adjust the mixture if it was ok for the test. Does moving the distributor make a difference? Thanks in advance for any advice. |
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| Twin turbo | Sat Oct 7, 2017 8:11 pm Post #16 |
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Check/adjust ignition timing first yes, then afr/co... If/when they Are known good, then move on to the harder things |
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| blumerc | Sun Oct 8, 2017 6:12 pm Post #17 |
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Thanks for the reply, twin turbo. I'll get the timing checked first. |
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